Hitachi Metals, Ltd.

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[Owner] Hitachi Metals, Ltd. 1,163
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IPC Class
C22C 38/00 - Ferrous alloys, e.g. steel alloys 258
H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets 165
B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties 88
H01F 1/08 - Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together 74
C21D 6/00 - Heat treatment of ferrous alloys 71
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Found results for  patents
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1.

METHOD FOR SUPPLYING ASSOCIATIVE GAS TO SEMICONDUCTOR MANUFACTURING DEVICE

      
Application Number JP2022047207
Publication Number 2023/181548
Status In Force
Filing Date 2022-12-21
Publication Date 2023-09-28
Owner HITACHI METALS, LTD. (Japan)
Inventor Sugimoto Masato

Abstract

maxmaxmax(T) is preferably determined on the basis of a stable region of a conversion factor CF of the associative gas as referenced to a calibration gas with which association is unlikely to occur. This makes it possible to stably supply, to a semiconductor manufacturing device, associative gas with which chemical association readily occurs.

IPC Classes  ?

2.

ALLOY FOR SEMICONDUCTOR PRODUCTION APPARATUSES, ALLOY MEMBER FOR SEMICONDUCTOR PRODUCTION APPARATUSES, AND PRODUCT

      
Application Number JP2023002127
Publication Number 2023/140389
Status In Force
Filing Date 2023-01-24
Publication Date 2023-07-27
Owner HITACHI METALS, LTD. (Japan)
Inventor
  • Iwasaki, Tomio
  • Sugawara, Hiroki
  • Ohnuma, Hiroshi
  • Koseki, Shuho

Abstract

An alloy for semiconductor production apparatuses according to the present invention contains Ta and Mo as a first element group. This alloy for semiconductor production apparatuses additionally contains, as a second element group, at least one element that is selected from the group consisting of Nb, Hf, Zr and W. If the total of the first element group and the second element group is taken as 100 at%, Ta is 10 at% or more but 35 at% or less (hereinafter expressed as 10-35 at% that is the elemental ratio thereof), Mo is 5-25 at%, and each one of the second elements is 10-35 at%. In addition, the adsorption energy of chloride ions or the like is 0.2 eV or less.

IPC Classes  ?

  • C22C 30/00 - Alloys containing less than 50% by weight of each constituent

3.

ALLOY, ALLOY MEMBER AND PRODUCT

      
Application Number JP2023002126
Publication Number 2023/140388
Status In Force
Filing Date 2023-01-24
Publication Date 2023-07-27
Owner HITACHI METALS, LTD. (Japan)
Inventor
  • Iwasaki, Tomio
  • Sugawara, Hiroki
  • Ohnuma, Hiroshi
  • Koseki, Shuho

Abstract

An alloy according to the present embodiment contains Fe, Cr and V as a first element group. Said alloy may also contain one or more types of element selected from Mn, Co, Ni, Si, Ge, Ru and Pd as a second element group. When the total is 100at% (hereinafter, written the same), the first element group each constitutes 10-45 at%, inclusive (at%=element ratio. Hereinafter, written as 10-45 at%). The Mg lattice mismatch is 13% or higher, and the dislocation movement barrier energy is 300 kJ/mol or higher.

IPC Classes  ?

  • C22C 30/00 - Alloys containing less than 50% by weight of each constituent

4.

FLEXIBLE-PIPE JOINT

      
Application Number JP2022046872
Publication Number 2023/120520
Status In Force
Filing Date 2022-12-20
Publication Date 2023-06-29
Owner HITACHI METALS, LTD. (Japan)
Inventor
  • Sakata Shindo
  • Fukushima Akira

Abstract

Provided is a flexible-pipe joint that makes it possible to eliminate marking work by a builder, and that also makes it possible to easily identify any building defects. The flexible-pipe joint is a pipe joint 1 for connecting a bellows-shaped flexible pipe in which a plurality of peaks and troughs are alternately arranged in an axial direction. The pipe joint is a joint configured so that when the flexible pipe is inserted into the joint from one end section up to a prescribed location, the flexible pipe is thereby sealed and prevented from being dislodged. On one end section on the inner circumferential surface of the pipe joint, a mark assigning portion 9 is present which comes into contact with a cover body for covering the flexible pipe when the flexible pipe is inserted, and thus assigns a mark onto the cover body.

IPC Classes  ?

  • F16L 33/00 - Arrangements for connecting hoses to rigid members; Rigid hose-connectors, i.e. single members engaging both hoses

5.

LAMINATED MAGNETIC MATERIAL, TRANSFORMER CORE, AND METHOD FOR PRODUCING LAMINATED MAGNETIC MATERIAL

      
Application Number JP2022047785
Publication Number 2023/120730
Status In Force
Filing Date 2022-12-23
Publication Date 2023-06-29
Owner HITACHI METALS,LTD. (Japan)
Inventor
  • Ishikawa Yuki
  • Noguchi Shin
  • Aimuta Kyohei

Abstract

The present invention provides: a laminated magnetic material which is excellent in terms of preventing a reduction in heat resistance and magnetic flux density and suppressing an increase in iron loss; and a method for producing a laminated magnetic material. Provided is a laminated magnetic material in which laminated quenched alloy thin ribbons are bonded in layers with a resin that is heat curable or curable at normal temperature and that has a glass transition temperature of not more than 100°C, said laminated magnetic material being characterized in that the peeling strength of the laminated magnetic material at room temperature is not less than 1.0 gf/mm, and the magnetic flux density B80 of the entirety of the laminated magnetic material at an applied magnetic field of 80 A/m is not less than 1.25 T.

IPC Classes  ?

  • H01F 27/25 - Magnetic cores made from strips or ribbons
  • H01F 1/147 - Alloys characterised by their composition
  • H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets

6.

COMPOSITE MATERIAL, MANUFACTURING METHOD FOR COMPOSITE MATERIAL, AND MOLD

      
Application Number JP2022043229
Publication Number 2023/095805
Status In Force
Filing Date 2022-11-22
Publication Date 2023-06-01
Owner HITACHI METALS, LTD. (Japan)
Inventor
  • Shiratori Hiroshi
  • Koseki Shuho
  • Ando Shinsuke
  • Kuwabara Kousuke
  • Okamoto Shinya

Abstract

The purpose of the present invention is to provide a composite material that has high durability under a high-temperature environment, and that is easy to manufacture. The composite material according to the present invention is characterized by: including a low-melting point alloy member having a melting point of 1600°C or less, at least a portion of the surface thereof having a high-melting point metal-containing built-up section; the high-melting point metal-containing built-up section having high-melting point metal particles dispersed therein, the metal particles containing a high-melting point metal element having a melting point of 2400°C or higher; and the content of the high-melting point metal element being in the range of 50 to 95 mass%.

IPC Classes  ?

  • B22F 7/08 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting of composite workpieces or articles from parts, e.g. to form tipped tools with one or more parts not made from powder
  • B22C 9/06 - Permanent moulds for shaped castings
  • B22D 17/22 - Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
  • B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
  • B23K 9/04 - Welding for other purposes than joining, e.g. built-up welding
  • B23K 26/342 - Build-up welding
  • C22C 1/04 - Making non-ferrous alloys by powder metallurgy
  • C22C 1/10 - Alloys containing non-metals
  • C22C 14/00 - Alloys based on titanium
  • C22C 19/05 - Alloys based on nickel or cobalt based on nickel with chromium
  • C22C 19/07 - Alloys based on nickel or cobalt based on cobalt
  • C22C 27/04 - Alloys based on tungsten or molybdenum
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C22C 38/14 - Ferrous alloys, e.g. steel alloys containing titanium or zirconium
  • C23C 24/10 - Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
  • C23C 26/00 - Coating not provided for in groups

7.

THIN NANOCRYSTAL ALLOY BAND PRODUCTION METHOD, AND THIN NANOCRYSTAL ALLOY BAND

      
Application Number JP2022023735
Publication Number 2022/264998
Status In Force
Filing Date 2022-06-14
Publication Date 2022-12-22
Owner HITACHI METALS, LTD. (Japan)
Inventor
  • Toyonaga Kotoba
  • Ogawa Yuichi

Abstract

1-xxabcdee, where A represents at least one of Ni and Co, M represents one or more of Nb, Mo, V, Zr, Hf, and W, 81≤a≤86, 0.15≤b≤5.0, 12.5≤c≤15, 0≤d≤1.0, 0≤e≤1.0, and 0≤x≤0.1 are satisfied, wherein the alloy band, in a state of having a tension of 10-160 MPa applied thereto, is brought into contact with a heating body while being transported, and is subjected to the thermal treatment so that the temperature increase rate is at least 100 K/s, and the temperature Ta of the heating body is in the range of Tx1+85°C to Tx1+140°C when e<0.4 is satisfied in the composition formula and is in the range of Tx1+60°C to Tx1+100°C when e≥0.4 is satisfied in the composition formula, where Tx1 represents the crystallization temperature of the alloy band.

IPC Classes  ?

  • H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets
  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 9/00 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C22C 45/02 - Amorphous alloys with iron as the major constituent
  • H01F 1/153 - Amorphous metallic alloys, e.g. glassy metals

8.

THIN NANOCRYSTAL ALLOY BAND PRODUCTION METHOD, AND THIN NANOCRYSTAL ALLOY BAND

      
Application Number JP2022023736
Publication Number 2022/264999
Status In Force
Filing Date 2022-06-14
Publication Date 2022-12-22
Owner HITACHI METALS, LTD. (Japan)
Inventor
  • Ogawa Yuichi
  • Toyonaga Kotoba
  • Fukuyama Takeshi
  • Sano Hirohisa
  • Wada Jun

Abstract

1-xxabcdee, where A represents at least one of Ni and Co, M represents at least one selected from Nb, Mo, V, Zr, Hf, and W, and, 80.0≤a≤87.0, 0≤b≤9.0, 12.0≤c≤16.0, 0≤d≤1.5, 0≤e≤1.5, and 0≤x≤0.1 are satisfied in terms of atom%, the method comprising transporting a thin amorphous alloy band while pressing the thin amorphous alloy band against a heating body so as to be heat the same, wherein the heating body is heated to a heating temperature Ta of Tx1+80°C to Tx1+160°C when Tx1°C represents a bcc-Fe crystallization onset temperature as measured when the temperature increase rate of the thin amorphous alloy band is set to 20 K/min.

IPC Classes  ?

  • H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets
  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 9/00 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C22C 45/02 - Amorphous alloys with iron as the major constituent
  • H01F 1/153 - Amorphous metallic alloys, e.g. glassy metals

9.

ALLOY MATERIAL, ALLOY PRODUCT USING ALLOY MATERIAL, AND MACHINE DEVICE PROVIDED WITH ALLOY PRODUCT

      
Application Number JP2022022984
Publication Number 2022/260044
Status In Force
Filing Date 2022-06-07
Publication Date 2022-12-15
Owner HITACHI METALS, LTD. (Japan)
Inventor
  • Kimura Tatsuya
  • Shiratori Hiroshi
  • Kuwabara Kousuke

Abstract

The present invention provides: an alloy material which has improved mechanical characteristics in a high temperature environment; an alloy product which uses this alloy material; and a machine device which is provided with this alloy product. This alloy material contains Co, Cr, Fe and Ni respectively in an amount within the range from 5% by atom to 40% by atom, Mo in an amount of more than 0% by atom but not more than 8% by atom, Ti in an amount of 1% by atom to 10% by atom, and B in an amount of more than 0% by atom but less than 0.15% by atom, with the balance being made up of unavoidable impurities. This alloy material may contain B in an amount within the range from 0.03% by atom to 0.12% by atom, and may contain at least one of Ta and Nb in an amount of 4% by atom or less. In addition, it is preferable that the sum of Ti and at least one of Ta and Nb is from 3% by atom to 10% by atom.

IPC Classes  ?

  • C22C 30/00 - Alloys containing less than 50% by weight of each constituent
  • B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
  • B22F 3/16 - Both compacting and sintering in successive or repeated steps
  • B22F 10/43 - Structures for supporting workpieces or articles during manufacture and removed afterwards characterised by material

10.

MASS FLOW CONTROLLER UTILIZING NONLINEARITY COMPONENT FUNCTIONS

      
Application Number JP2022004916
Publication Number 2022/209321
Status In Force
Filing Date 2022-02-08
Publication Date 2022-10-06
Owner HITACHI METALS, LTD. (Japan)
Inventor Smirnov, Alexei V.

Abstract

Mass flow controllers and methods for controlling mass flow controllers are disclosed. A method includes providing a gas through a thermal mass flow sensor of the mass flow controller and processing a sensor signal from the thermal mass flow sensor to produce a flow signal. A total nonlinearity characteristic function is determined based on nonlinearity effects on the flow signal and includes a first and second nonlinearity component function based on a first and second source of nonlinearity respectively. The total nonlinearity characteristic function is calibrated, and the first nonlinearity component function is adjusted responsive to changes in the first source of nonlinearity, after which the total nonlinearity characteristic function is updated. The flow signal is corrected to produce a corrected flow signal using the total nonlinearity characteristic function. A valve of the mass flow controller is controlled using the corrected flow signal and a setpoint signal.

IPC Classes  ?

  • G05D 7/06 - Control of flow characterised by the use of electric means

11.

METHOD FOR MANUFACTURING POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM-ION SECONDARY BATTERY

      
Application Number JP2022012429
Publication Number 2022/209988
Status In Force
Filing Date 2022-03-17
Publication Date 2022-10-06
Owner HITACHI METALS,LTD. (Japan)
Inventor
  • Nakabayashi Takashi
  • Tokoro Hisato
  • Takano Shuichi

Abstract

Because nickel sulphate is a hexahydrate, the mass% of Ni is about 20-25%, which makes the bulk specific density thereof low, and thus, there is a problem in that the volume to be handled in transport and in a step for manufacturing a positive electrode material increases. The present invention provides a method for manufacturing a positive electrode active material for a lithium-ion secondary battery, the method including: a step for firing mixed powder in which metal nickel powder, a compound containing Li, and a compound containing a metal element M other than Li and Ni are mixed to yield a positive electrode active material for a lithium-ion secondary battery, the positive electrode material having a layered structure, wherein the amount of Ni in the total amount of metal elements contained in the positive electrode active material for a lithium-ion secondary battery is equal to or greater than 60% in terms of the atomic ratio, and the nickel powder is at least partially oxidized or a step for oxidizing said powder is included.

IPC Classes  ?

  • C01G 53/00 - Compounds of nickel
  • H01M 4/1391 - Processes of manufacture of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
  • H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy

12.

COMPOSITE MEMBER, PRODUCT, AND METHOD FOR PRODUCING COMPOSITE MEMBER

      
Application Number JP2022013749
Publication Number 2022/210221
Status In Force
Filing Date 2022-03-23
Publication Date 2022-10-06
Owner HITACHI METALS,LTD. (Japan)
Inventor
  • Koseki Shuho
  • Sugawara Hiroki

Abstract

The present invention provides a composite member, a product, and a method for producing a composite member that make it possible to efficiently improve properties of a member against a load that is not uniform. Provided is a composite member comprising a base material that is made of an alloy, and two or more enhanced-property sections that each include an alloy of a different composition from that of the base material and are disposed so as to be continuous with and integrated with the base material.

IPC Classes  ?

  • B22F 7/00 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting
  • B29C 45/17 - Component parts, details or accessories; Auxiliary operations
  • C22C 27/04 - Alloys based on tungsten or molybdenum
  • C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
  • C22C 30/00 - Alloys containing less than 50% by weight of each constituent
  • B33Y 80/00 - Products made by additive manufacturing
  • B29C 33/38 - SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING - Details thereof or accessories therefor characterised by the material or the manufacturing process
  • B22F 10/00 - Additive manufacturing of workpieces or articles from metallic powder

13.

METHOD FOR PRODUCING R-T-B-BASED SINTERED MAGNET

      
Application Number JP2022007631
Publication Number 2022/209466
Status In Force
Filing Date 2022-02-24
Publication Date 2022-10-06
Owner HITACHI METALS, LTD. (Japan)
Inventor
  • Saitou Kouta
  • Kuniyoshi Futoshi

Abstract

A method for producing an R-T-B-based sintered magnet according to the present disclosure comprises a sintering step for sintering a shaped product of R-T-B-based alloy powder. This sintering step includes: a first stage step for heating the shaped product at a first sintering temperature T1 to prepare a first stage sintered body; a cooling step for lowering the temperature of the first stage sintered body to a cooling temperature T0; and a second stage step for heating the first stage sintered body at a second sintering temperature T2 to prepare a second stage sintered body. The first sintering temperature T1 and the second sintering temperature T2 are higher than 900°C, and the cooling temperature T0 is 900°C or lower. A first sintering time t1 for which the first sintering temperature T1 is maintained in the first stage step is shorter than a second sintering time t2 for which the second sintering temperature T2 is maintained in the second stage step.

IPC Classes  ?

  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 9/00 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
  • C22C 33/02 - Making ferrous alloys by powder metallurgy
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets
  • H01F 1/057 - Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
  • B22F 3/00 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor
  • B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties

14.

SCINTILLATOR STRUCTURE

      
Application Number JP2022007652
Publication Number 2022/209469
Status In Force
Filing Date 2022-02-24
Publication Date 2022-10-06
Owner HITACHI METALS, LTD. (Japan)
Inventor
  • Nakahashi, Masanobu
  • Taniguchi, Naohiro
  • Kibe, Tamotsu
  • Chiyo, Hikaru
  • Okamoto, Ryota

Abstract

The present invention improves the reliability of a scintillator structure. This scintillator structure comprises a plurality of cells and a reflection layer that covers the plurality of cells. Each of the plurality of cells includes a resin and a phosphor, the resin being such that the rate of decrease in the overall beam transmittance thereof with respect to light having a wavelength of 542 nm, after the resin has been irradiated with X-rays in a dosage of 100 kgy, is less than 8%.

IPC Classes  ?

  • G01T 1/20 - Measuring radiation intensity with scintillation detectors
  • G21K 4/00 - Conversion screens for the conversion of the spatial distribution of particles or ionising radiation into visible images, e.g. fluoroscopic screens

15.

SCINTILLATOR STRUCTURE

      
Application Number JP2022007653
Publication Number 2022/209470
Status In Force
Filing Date 2022-02-24
Publication Date 2022-10-06
Owner HITACHI METALS, LTD. (Japan)
Inventor
  • Nakahashi, Masanobu
  • Taniguchi, Naohiro
  • Kibe, Tamotsu
  • Chiyo, Hikaru
  • Okamoto, Ryota

Abstract

The present invention improves the reliability of a scintillator structure. This scintillator structure comprises a plurality of cells and a reflective layer covering the plurality of cells. Here, the plurality of cells each contain a resin and a fluorescent body, wherein the resin contains a main agent including bi-7-oxabicyclo[4.1.0]heptane and a curing agent. Also, the plurality of cells each contain a resin and a fluorescent body, wherein the resin contains a main agent and a curing agent. The main agent includes 3,4-epoxycyclohexylmethyl(3,4-epoxy)cyclohexane carboxylate and a 1,2-epoxy-4-(2-oxiranyl)cyclohexane adduct of 2,2-bis(hydroxymethyl)-1-butanol.

IPC Classes  ?

  • G01T 1/20 - Measuring radiation intensity with scintillation detectors
  • G21K 4/00 - Conversion screens for the conversion of the spatial distribution of particles or ionising radiation into visible images, e.g. fluoroscopic screens

16.

CONDUCTIVE METAL PARTICLE PRODUCTION METHOD AND CONDUCTIVE METAL PARTICLES

      
Application Number JP2022013732
Publication Number 2022/210217
Status In Force
Filing Date 2022-03-23
Publication Date 2022-10-06
Owner HITACHI METALS, LTD. (Japan)
Inventor Mori Hidehito

Abstract

In this production method for forming Ni-based conductive metal particles by mixing a first aqueous solution comprising Ni and NaOH with a second aqueous solution comprising P to prepare a third aqueous solution with a pH greater than 7 and inducing a reduction precipitation reaction in said third aqueous solution, the median diameter d50 of the conductive metal particles is regulated by means of the NaOH concentration in the third aqueous solution.

IPC Classes  ?

  • B22F 9/24 - Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions
  • C22C 1/04 - Making non-ferrous alloys by powder metallurgy
  • C22C 19/03 - Alloys based on nickel or cobalt based on nickel

17.

METHOD FOR MANUFACTURING POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERY

      
Application Number JP2022007418
Publication Number 2022/202066
Status In Force
Filing Date 2022-02-22
Publication Date 2022-09-29
Owner HITACHI METALS,LTD. (Japan)
Inventor
  • Takano Shuichi
  • Tokoro Hisato
  • Gunji Akira
  • Takahashi Shin

Abstract

[Problem] To provide a method which is for manufacturing a positive electrode active material for a lithium ion secondary battery, and by which the solid-phase reaction of a precursor is uniformly promoted to suppress the elution amount of lithium carbonate. [Solution] This method for manufacturing a positive electrode active material for a lithium ion secondary battery involves reacting at least 95 mass% of a lithium compound through a heat treatment step using a rotary firing furnace and having a batch firing process for heating a precursor while rolling the same in a heating region in a furnace tube, wherein the batch firing process has: a tilted input stage for tilting the furnace tube and inputting the precursor from an inlet of the firing furnace; a horizontal firing stage for performing firing while making the furnace tube horizontal; and a tilted discharge stage for tilting the furnace tube and discharging a fired body from an outlet of the firing furnace.

IPC Classes  ?

  • C01G 53/00 - Compounds of nickel
  • F27B 7/12 - Rotary-drum furnaces, i.e. horizontal or slightly inclined tiltable
  • F27B 7/14 - Rotary-drum furnaces, i.e. horizontal or slightly inclined with means for agitating or moving the charge
  • H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
  • H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy

18.

SILICON CARBIDE-BASED CERAMIC HONEYCOMB STRUCTURE AND PRODUCTION METHOD THEREFOR

      
Application Number JP2022013577
Publication Number 2022/202910
Status In Force
Filing Date 2022-03-23
Publication Date 2022-09-29
Owner HITACHI METALS, LTD. (Japan)
Inventor Shimizu Kenichiro

Abstract

This silicon carbide-based ceramic honeycomb structure has a plurality of flow paths penetrating same in an axial direction and separated by partition walls of a silicon carbide-based porous body, and is characterized in that the partition walls have a porosity of 35-50% and a median pore diameter of 8-18 μm, and, in a cross-section of the partition walls perpendicular to the axial direction, when a straight line C passing through the center in a thickness T direction of the partition walls and being parallel to surfaces of the partition walls is drawn, and straight lines that are parallel to the straight line C and that are formed at positions separated from the straight line C by a distance of ±T/5 and ±2T/5 in the thickness direction of the partition walls are drawn, and lengths (pore widths) of pore portions intersected by the straight lines and the number of pores are measured across a predetermined length, an average pore width W that is an average value of the pore widths of all pores measured is 10-25 μm, and the number N of pores per unit length, which is a value obtained by dividing the total number of measured pores by the full length of the straight lines is 20-40 pores/mm.

IPC Classes  ?

  • B01D 39/20 - Other self-supporting filtering material of inorganic material, e.g. asbestos paper or metallic filtering material of non-woven wires
  • B01J 35/04 - Foraminous structures, sieves, grids, honeycombs
  • C04B 38/00 - Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
  • F01N 3/022 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
  • C04B 35/577 - Composites
  • B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours

19.

PARAMETER INITIAL VALUE DETERMINATION METHOD AND SYSTEM, AND MASS FLOW RATE CONTROL DEVICE ADJUSTMENT METHOD AND SYSTEM

      
Application Number JP2022005733
Publication Number 2022/201963
Status In Force
Filing Date 2022-02-14
Publication Date 2022-09-29
Owner HITACHI METALS, LTD. (Japan)
Inventor Goto Takao

Abstract

The present invention adjusts a parameter of a mass flow rate control device among a plurality of mass flow rate control devices under a certain control condition, and stores the adjusted parameter into a server in association with the control condition. Next, the present invention extracts pieces of data associated with a common control condition from data accumulated in the server, determines the initial value of the parameter on the basis of the extracted pieces of data, and stores the determined initial value of the parameter into the server in association with the common control condition. The present invention adjusts the mass flow rate control device by using the initial value of the parameter determined in this manner. As a result, the present invention can finish adjustment of the mass flow rate control device with fewer steps while preventing occurrence of a failure in adjustment of the mass flow rate control device.

IPC Classes  ?

  • G05D 7/06 - Control of flow characterised by the use of electric means
  • G01F 1/00 - Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
  • G01F 1/696 - Circuits therefor, e.g. constant-current flow meters
  • G01F 25/00 - Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
  • G05B 11/36 - Automatic controllers electric with provision for obtaining particular characteristics, e.g. proportional, integral, differential
  • G05B 11/42 - Automatic controllers electric with provision for obtaining particular characteristics, e.g. proportional, integral, differential for obtaining a characteristic which is both proportional and time-dependent, e.g. P. I., P. I. D.

20.

SILICON CARBIDE-BASED CERAMIC HONEYCOMB STRUCTURE AND PRODUCTION METHOD THEREFOR

      
Application Number JP2022013530
Publication Number 2022/202903
Status In Force
Filing Date 2022-03-23
Publication Date 2022-09-29
Owner HITACHI METALS, LTD. (Japan)
Inventor Shimizu Kenichiro

Abstract

This silicon carbide-based ceramic honeycomb structure has a plurality of flow paths penetrating in an axial direction and being separated by partition walls of a silicon carbide-based porous body, and is characterized in that the partition walls each have silicon carbide particles serving as an aggregate, and a binding layer that binds the silicon carbide particles, the binding layer includes at least a cordierite phase and a spinel phase, and the molar ratio M1 [= cordierite phase/(cordierite phase + spinel phase)] of the cordierite phase is 0.4-0.9.

IPC Classes  ?

  • B01D 39/20 - Other self-supporting filtering material of inorganic material, e.g. asbestos paper or metallic filtering material of non-woven wires
  • B01J 35/04 - Foraminous structures, sieves, grids, honeycombs
  • C04B 38/00 - Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
  • F01N 3/022 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
  • C04B 35/577 - Composites
  • B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours

21.

SPHEROIDAL GRAPHITE CAST IRON, SPHEROIDAL GRAPHITE CAST IRON MANUFACTURING METHOD, AND SPHEROIDIZING TREATMENT AGENT

      
Application Number JP2022013605
Publication Number 2022/202914
Status In Force
Filing Date 2022-03-23
Publication Date 2022-09-29
Owner HITACHI METALS, LTD. (Japan)
Inventor
  • Nanjo, Fumiya
  • Goto, Ryo
  • Sugimoto, Atsushi
  • Wang, Lin

Abstract

A spheroidal graphite cast iron comprising 2.8-3.3% of carbon, 2.5-4.0% of silicon, 0.32-0.40% of manganese, 0.020-0.030% of phosphorus, 0.020-0.035% of sulfur, 0.030-0.050% of magnesium, 0.010-0.050% of a total of lanthanum and cerium, and 0.0020-0.0050% of calcium, all in mass percentage, the remaining portion being iron and unavoidable impurities.

IPC Classes  ?

  • C22C 37/04 - Cast-iron alloys containing spheroidal graphite
  • C21C 1/10 - Making spheroidal graphite cast-iron

22.

SILICON NITRIDE SUBSTRATE

      
Application Number JP2022011656
Publication Number 2022/196693
Status In Force
Filing Date 2022-03-15
Publication Date 2022-09-22
Owner HITACHI METALS, LTD. (Japan)
Inventor
  • Kaga Youichirou
  • Fukumoto Rei
  • Shimada Kei

Abstract

In the manufacturing of a large-sized silicon nitride substrate having a high thermal conductivity, the generation of a portion having a low thermal conductivity caused the problem of decreasing yield (pass rate). This silicon nitride substrate has a ratio λe/λc of 0.85-1.15, which is the ratio of a thermal conductivity λc at a center of the substrate to a thermal conductivity λe at an end of the substrate. The size of the silicon nitride substrate is preferably 150 mm×150 mm or more. The λc and the λe of the silicon nitride substrate each are preferably 100 W/m•K or more.

IPC Classes  ?

23.

METAL POWDER FOR ADDITIVE MANUFACTURING AND ADDITIVELY MANUFACTURED PRODUCT USING SAME

      
Application Number JP2022012428
Publication Number 2022/196778
Status In Force
Filing Date 2022-03-17
Publication Date 2022-09-22
Owner HITACHI METALS, LTD. (Japan)
Inventor
  • Fukuzawa Norihide
  • Saito Kazuya
  • Wang Jue

Abstract

Provided are: a metal powder for additive manufacturing that makes it possible to produce an additively manufactured product that has excellent mechanical properties and few internal flaws and undergoes little deformation due to strain; and an additively manufactured product using the metal powder for additive manufacturing. A metal powder for additive manufacturing that comprises, by mass%, 14.0%–24.0% of Ni, 2.0%–8.0% of Mo, 10.5%–20.0% of Co, 0.01%–2.00% of Al, and 0.10%–3.00% of Ti, the remainder being Fe and unavoidable impurities. An additively manufactured product that comprises, by mass%, 14.0%–24.0% of Ni, 2.0%–8.0% of Mo, 10.5%–20.0% of Co, 0.01%–2.00% of Al, and 0.10%–3.00% of Ti, the remainder being Fe and unavoidable impurities. In a cross-section of the additively manufactured product taken parallel to the build direction, there are fewer than 0.1 flaws that have a circle equivalent diameter of more than 20 μm per 1 mm2.

IPC Classes  ?

  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C22C 38/14 - Ferrous alloys, e.g. steel alloys containing titanium or zirconium
  • B33Y 80/00 - Products made by additive manufacturing
  • B33Y 70/00 - Materials specially adapted for additive manufacturing
  • B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
  • B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
  • B22F 10/34 - Process control of powder characteristics, e.g. density, oxidation or flowability

24.

IRON-CHROMIUM-COBALT ALLOY MAGNET AND METHOD FOR PRODUCING SAME

      
Application Number JP2022005363
Publication Number 2022/172995
Status In Force
Filing Date 2022-02-10
Publication Date 2022-08-18
Owner HITACHI METALS,LTD. (Japan)
Inventor
  • Okamoto Shinya
  • Oonuma Atsuhiko
  • Okamura Nobuyuki
  • Kuwabara Kousuke
  • Adachi Shunnya
  • Sato Masahiro
  • Ishii Takahiro

Abstract

The purpose of the present invention is to provide: an iron-chromium-cobalt alloy magnet having improved magnetic characteristics, especially maximum energy product; and a method for producing the same. Provided is an iron-chromium-cobalt alloy magnet, wherein: the iron-chromium-cobalt alloy magnet includes titanium; the number density of Ti-enriched phases having a maximum diameter of 3 μm or greater in a cross-section is, on average, less than 1.0 per 10,000 μm2ma×rcBcB) exceeds 0.72.

IPC Classes  ?

  • C21D 6/00 - Heat treatment of ferrous alloys
  • C22C 30/00 - Alloys containing less than 50% by weight of each constituent
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • H01F 1/04 - Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
  • B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
  • B22F 3/16 - Both compacting and sintering in successive or repeated steps

25.

NI-BASED ALLOY POWDER FOR LAMINATION MOLDING, LAMINATION MOLDED ARTICLE, AND LAMINATION MOLDED ARTICLE MANUFACTURING METHOD

      
Application Number JP2022004263
Publication Number 2022/168914
Status In Force
Filing Date 2022-02-03
Publication Date 2022-08-11
Owner HITACHI METALS, LTD. (Japan)
Inventor
  • Aota Kinya
  • Kuwabara Kousuke

Abstract

Provided are a Ni-based alloy powder for lamination molding, a lamination molded article, and a manufacturing method therefor, all of which prevent development of cracks. The Ni-based alloy powder for lamination molding contains, in mass%, 10.0-16.0% of Cr, 4.0-9.0% of Al, 1.0-6.0% of Mo, 0.5-4.0% of Nb, 0.5% or less of Ti, 0.5% or less of Zr, 0.06-0.4% of C, and 0.04% or less of B, the remaining portion being Ni and unavoidable impurities, and satisfies 150≤120Nb+650Zr+32Ti-385C≤270.

IPC Classes  ?

  • C22C 19/05 - Alloys based on nickel or cobalt based on nickel with chromium
  • B33Y 80/00 - Products made by additive manufacturing
  • B33Y 70/00 - Materials specially adapted for additive manufacturing
  • B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
  • B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
  • B22F 10/34 - Process control of powder characteristics, e.g. density, oxidation or flowability

26.

BELLOWS DIAPHRAGM ASSEMBLY

      
Application Number JP2021048753
Publication Number 2022/153868
Status In Force
Filing Date 2021-12-28
Publication Date 2022-07-21
Owner HITACHI METALS, LTD. (Japan)
Inventor
  • Johnson, Ryan
  • Kawakami, Ken

Abstract

A diaphragm assembly for a mass flow controller is disclosed. The diaphragm assembly includes an aperture, side walls extending from the aperture and disposed about a central axis, the side walls including multiple convolutions, and a poppet including an interior surface facing the aperture and exterior sealing surface. At least a portion of the diaphragm assembly moveably extends and retracts within a control valve cavity of the mass flow controller. A push rod extending from the interior surface of the poppet moves, responsive to an actuator of the mass flow controller, to enable the exterior sealing surface of the poppet to open and close a flow path through the control valve cavity.

IPC Classes  ?

27.

METHOD FOR MANUFACTURING AUSTENITIC STAINLESS STEEL STRIP

      
Application Number JP2021023106
Publication Number 2022/123812
Status In Force
Filing Date 2021-06-17
Publication Date 2022-06-16
Owner HITACHI METALS,LTD. (Japan)
Inventor
  • Momono Shogo
  • Fukada Shinichiro
  • Uehara Toshihiro

Abstract

Provided is a method for manufacturing an austenitic stainless steel strip having both of high creep strength and satisfactory oxidation resistance. A method for manufacturing an austenitic stainless steel strip comprises: a hot rolling step for subjecting a material to be hot-rolled to a hot rolling procedure, in which the material to be hot-rolled has a component composition that contains, in % by mass, more than 20.0% and 30.0% or less of Ni, more than 15.0% and 18.0% or less of Cr, 1.0 to 2.0% of Mo, 3.5% or more and less than 5.0% of Al, more than 1.0% and 2.0% or less of Nb+Ta, 0.3% or less of Ti+V, 1.0% or less of Si, 2.0% or less of Mn, 0.01 to 0.3% of Zr, 0.005 to 0.045% of C, 0.001 to 0.03% of B, and also contains at least one element selected from Y, La, Ce and Hf in an amount such that the content of Y+La+Ce+Hf+Zr can become 0.01 to 0.5% with the remainder comprising Fe and unavoidable impurities; a cold rolling step for subjecting the hot-rolled steel strip to a cold rolling procedure; and a solution treatment step for heating the cold-rolled steel strip, then maintaining the heated steel strip at that temperature, and then subjecting the heated steel sheet to a rapid cooling procedure.

IPC Classes  ?

  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
  • C22C 30/00 - Alloys containing less than 50% by weight of each constituent
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C22C 38/58 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese

28.

METHOD FOR PRODUCING BORON NITRIDE NANOTUBES

      
Application Number JP2021041701
Publication Number 2022/102741
Status In Force
Filing Date 2021-11-12
Publication Date 2022-05-19
Owner
  • HITACHI METALS, LTD. (Japan)
  • NARA INSTITUTE OF SCIENCE AND TECHNOLOGY (Japan)
Inventor
  • Fujieda, Tadashi
  • Nonoguchi, Yoshiyuki
  • Florencio Delen De Los Reyes
  • Kawai, Tsuyoshi
  • Takeuchi, Akifumi

Abstract

The purpose of the present invention is to provide a method for producing boron nitride nanotubes, said method reducing the ratio of by-products having less reinforcing effects such as boron nitride fullerenes and boron nitride thin pieces, while enhancing the yield at the same time, without requiring a thermal oxidation treatment. The present invention provides a method for producing boron nitride nanotubes, said method being characterized by comprising: a step for obtaining a suspension by mixing a starting material that contains boron nitride nanotubes, a nonionic polymer dispersant having an sp3-bonded CH group, and an organic solvent; and a step for obtaining a dispersion liquid containing boron nitride nanotubes by subjecting the thus-obtained suspension to centrifugal separation, thereby removing by-products contained in the starting material.

IPC Classes  ?

  • C01B 21/064 - Binary compounds of nitrogen with metals, with silicon, or with boron with boron
  • B82Y 40/00 - Manufacture or treatment of nanostructures

29.

METHOD FOR PREDICTING DEFECT OF ADDITIVE-MANUFACTURED PRODUCT AND METHOD FOR MANUFACTURING ADDITIVE-MANUFACTURED PRODUCT

      
Application Number JP2021040429
Publication Number 2022/097651
Status In Force
Filing Date 2021-11-02
Publication Date 2022-05-12
Owner HITACHI METALS,LTD. (Japan)
Inventor
  • Kuwabara Kousuke
  • Niu Jing

Abstract

Provided is a method for predicting a defect of an additive-manufactured product manufactured by melting and solidifying metal powder, said method being characterized by having: a luminance data acquisition step for acquiring luminance data on light emitted from a molten pool formed when the metal power is melted and solidified; an evaluation data extraction step for extracting evaluation data from the luminance data; and an evaluation step for estimating the presence/absence of a defect of the additive-manufactured product by using the evaluation data, wherein the evaluation data includes a luminance average value and a luminance standard deviation.

IPC Classes  ?

  • B22F 10/80 - Data acquisition or data processing
  • B22F 12/90 - Means for process control, e.g. cameras or sensors
  • B29C 64/386 - Data acquisition or data processing for additive manufacturing
  • B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
  • B33Y 10/00 - Processes of additive manufacturing
  • B33Y 50/00 - Data acquisition or data processing for additive manufacturing
  • B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
  • C22C 19/05 - Alloys based on nickel or cobalt based on nickel with chromium
  • G01J 1/04 - Optical or mechanical part
  • G01N 21/71 - Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited
  • G01N 21/88 - Investigating the presence of flaws, defects or contamination

30.

ALLOY MEMBER MANUFACTURING METHOD, ALLOY MEMBER, AND PRODUCT USING ALLOY MEMBER

      
Application Number JP2021040431
Publication Number 2022/097652
Status In Force
Filing Date 2021-11-02
Publication Date 2022-05-12
Owner HITACHI METALS,LTD. (Japan)
Inventor
  • Koseki Shuho
  • Kuwabara Kousuke
  • Honda Fumiaki

Abstract

Provided are a method for manufacturing an alloy member, and an alloy member, the alloy member having excellent mechanical properties and corrosion resistance, and further having abrasion resistance, and being manufactured by a laminated molding method using an alloy powder. The method for manufacturing an alloy member is characterized by having: a laminated molding step for forming an alloy substrate by means of a laminate shaping method using an alloy powder comprising, in an amount range of 5 atomic% to 35 atomic%, respectively, each element of Co, Cr, Fe, Ni, and Ti, and in an amount of 0 atomic% to 8 atomic% (exclusive of 0 atomic%) of Mo, with the balance being unavoidable impurities; and a surface treatment step for performing a surface treatment on the alloy substrate.

IPC Classes  ?

  • C22C 30/00 - Alloys containing less than 50% by weight of each constituent
  • C22C 1/04 - Making non-ferrous alloys by powder metallurgy
  • B33Y 10/00 - Processes of additive manufacturing
  • B33Y 80/00 - Products made by additive manufacturing
  • B33Y 70/00 - Materials specially adapted for additive manufacturing
  • B22F 10/34 - Process control of powder characteristics, e.g. density, oxidation or flowability
  • B22F 10/38 - Process control to achieve specific product aspects, e.g. surface smoothness, density, porosity or hollow structures
  • B22F 10/60 - Treatment of workpieces or articles after build-up

31.

STATE MONITORING SYSTEM, AND STATE MONITORING METHOD

      
Application Number JP2021038980
Publication Number 2022/091949
Status In Force
Filing Date 2021-10-21
Publication Date 2022-05-05
Owner HITACHI METALS, LTD. (Japan)
Inventor
  • Takezaki, Taiichi
  • Koseki, Shuho
  • Otsu, Kenji

Abstract

Provided are a state monitoring system and a state monitoring method that enable quality control of a molded object to be performed highly accurately. The state monitoring system monitors the state of three-dimensional additive manufacturing, and comprises: an acoustic sensor 23 that detects sound generated by a molded object; and an analysis device 12 that analyzes defects of the molded object on the basis of an acoustic signal AES contained in an output signal OT of the acoustic sensor 23. In the analysis device 12, a memory 52 stores defect DB information 61 that represents correlations between defective states DS of the molded object, and the acoustic signal AES. A defect information analyzer 51 specifies a defective state of the molded object by referencing the defect DB information 61 and by using at least one parameter among the parameters of the acoustic signal AES contained in the output signal OT, namely, the amplitude, the frequency, the wave number, the convergence time, and the generation interval, and determines the quality of the molded object on the basis of specified defective states DSa, DSb.

IPC Classes  ?

  • B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
  • B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
  • B22F 10/80 - Data acquisition or data processing
  • B22F 12/90 - Means for process control, e.g. cameras or sensors

32.

ALLOY MATERIAL, ALLOY PRODUCT IN WHICH ALLOY MATERIAL IS USED, AND MACHINE DEVICE HAVING ALLOY PRODUCT

      
Application Number JP2021035816
Publication Number 2022/071378
Status In Force
Filing Date 2021-09-29
Publication Date 2022-04-07
Owner HITACHI METALS, LTD. (Japan)
Inventor
  • Kimura Tatsuya
  • Shiratori Hiroshi
  • Shinagawa Kazuya
  • Kuwabara Kosuke
  • Daigo Yuzo

Abstract

Provided are an alloy material with which it is possible to inhibit unwanted aggregation precipitation and coarse-grain growth of an intermetallic compound phase, an alloy product in which the alloy material is used, and a machine device having the alloy product. The alloy material according to the present invention includes: Co, Cr, Fe, and Ni elements, each in the range of 5-40 atom% inclusive; Mo in an amount of over 0 atom% and up to 8 atom%; Ti in an amount of at least 1 atom% to less than 8 atom%; and Ta and/or Nb in an amount of over 0 atom% and up to 4 atom%, the total of the Ti and the Ta and/or Nb being 3-8 atom% inclusive, the balance being unavoidable impurities. In an alloy product in which the alloy material is used, the total occupancy of η-phase and Laves-phase precipitates measuring 1 μm or greater in size is suppressed to 5 area% or less.

IPC Classes  ?

  • C22C 30/00 - Alloys containing less than 50% by weight of each constituent
  • C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
  • C22F 1/16 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
  • B33Y 80/00 - Products made by additive manufacturing
  • B33Y 70/00 - Materials specially adapted for additive manufacturing
  • B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
  • B22F 10/20 - Direct sintering or melting
  • B22F 10/64 - Treatment of workpieces or articles after build-up by thermal means

33.

JOINT AND CONSTRUCTION METHOD FOR FLEXIBLE TUBE

      
Application Number JP2021036202
Publication Number 2022/071504
Status In Force
Filing Date 2021-09-30
Publication Date 2022-04-07
Owner HITACHI METALS, LTD. (Japan)
Inventor
  • Inotani Takaaki
  • Nishikata Nobuhiro
  • Tohyama Yasushi

Abstract

Provided is a flexible tube joint, and a method for installing a flexible tube, with which it is possible to reduce size while preventing detachment of the flexible tube. A tube joint 1 is a flexible tube joint that connects a flexible tube T1 having a deformation section T11 in which at least a part of the outer circumference is formed widening to the outer diameter side so as to be wider than the peak section of the tube, said flexible tube joint comprising: a push nut 3 mounted closer than the deformation section T11 to the side opposite the tip end of the flexible tube T1; a joint body 2 into which the tip end of the flexible tube T1 is inserted together with the end part of the push nut 3; an engagement mechanism in which the push nut 3 is engaged with the joint body 2; and a ring-shaped seal member positioned inside the joint body 2 and affixed to the flexible tube T1. The push nut 3 and the joint body 2 engage, whereby the flexible tube T1 is connected, and in the connected state, the deformation section T11 of the flexible tube T1 is locked to the end part of the push nut 3 on the joint body inner side, and the flexible tube T1 is retained.

IPC Classes  ?

  • F16L 37/088 - Couplings of the quick-acting type in which the connection between abutting or axially-overlapping ends is maintained by locking members combined with automatic locking by means of a split elastic ring
  • F16L 33/00 - Arrangements for connecting hoses to rigid members; Rigid hose-connectors, i.e. single members engaging both hoses

34.

PERMANENT MAGNET ALLOY, METHOD FOR MANUFACTURING SAME, PERMANENT MAGNET, AND METHOD FOR MANUFACTURING SAME

      
Application Number JP2021033394
Publication Number 2022/065089
Status In Force
Filing Date 2021-09-10
Publication Date 2022-03-31
Owner
  • TOHOKU UNIVERSITY (Japan)
  • HITACHI METALS, LTD. (Japan)
Inventor
  • Kainuma Ryosuke
  • Omori Toshihiro
  • Xu Xiao
  • Hashimoto Naoki
  • Maki Tomohito

Abstract

The permanent magnet alloy according to the present disclosure comprises 41 to 53 atomic % inclusive of Mn, 46 to 53 atomic % inclusive of Al, and 0.5 to 10 atomic % inclusive of Cu, wherein the ratio of the stable phase having a tetragonal structure is greater than or equal to 50%.

IPC Classes  ?

  • H01F 1/047 - Alloys characterised by their composition
  • B22F 3/00 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor
  • B22F 9/04 - Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor using physical processes starting from solid material, e.g. by crushing, grinding or milling
  • C22C 1/04 - Making non-ferrous alloys by powder metallurgy
  • C22C 22/00 - Alloys based on manganese
  • C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
  • C22F 1/16 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
  • H01F 1/08 - Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together
  • H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets

35.

R-T-B SINTERED MAGNET

      
Application Number JP2021034362
Publication Number 2022/065242
Status In Force
Filing Date 2021-09-17
Publication Date 2022-03-31
Owner HITACHI METALS, LTD. (Japan)
Inventor Kuniyoshi Futoshi

Abstract

21421414B compound, and the relationships 26.0 mass% ≤ ([Nd] + [Pr] + [Ce] + [Dy] + [Tb]) - (9 × [O] + 12 × [C]) ≤ 27.5 mass%, 0.15 mass% ≤ [O] ≤ 0.30 mass%, and 0.05 mass% < [Tb] ≤ 0.35 mass% are satisfied, where [Nd] is the Nd content (mass%), [Pr] is the Pr content (mass%), [Ce] is the Ce content (mass%), [Dy] is the Dy content (mass%), [O] is the O content (mass%), and [C] is the C content (mass%). There is also included a portion in which the Tb concentration and/or the Dy concentration gradually decreases from the magnet surface toward the magnet interior.

IPC Classes  ?

  • H01F 1/057 - Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
  • B22F 3/00 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor
  • C22C 28/00 - Alloys based on a metal not provided for in groups
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C21D 6/00 - Heat treatment of ferrous alloys

36.

HEAT TREATMENT METHOD FOR AMORPHOUS ALLOY RIBBON AND HEAT TREATMENT APPARATUS FOR AMORPHOUS ALLOY RIBBON

      
Application Number JP2021034822
Publication Number 2022/065370
Status In Force
Filing Date 2021-09-22
Publication Date 2022-03-31
Owner HITACHI METALS,LTD. (Japan)
Inventor
  • Sano Hirohisa
  • Fukuyama Takeshi

Abstract

The present invention provides a heat treatment method and a heat treatment apparatus for an amorphous alloy ribbon, said method and apparatus being capable of uniformly heat treating an amorphous alloy ribbon, while suppressing the occurrence of anisotropy in the magnetic characteristics. A heat treatment method for an amorphous alloy ribbon, said method comprising a step wherein an amorphous alloy ribbon is transferred, while being in contact with a heated projected surface, and the amorphous alloy ribbon is transferred, while having the part that is in contact with the projected surface pressed against the projected surface from a surface which is on the reverse side of the surface that is in contact with the projected surface.

IPC Classes  ?

  • C21D 6/00 - Heat treatment of ferrous alloys
  • H01F 1/153 - Amorphous metallic alloys, e.g. glassy metals

37.

TEMPERATURE SENSOR, AND MASS FLOW RATE METER AND MASS FLOW RATE CONTROL DEVICE THAT COMPRISE TEMPERATURE SENSOR

      
Application Number JP2021032399
Publication Number 2022/059513
Status In Force
Filing Date 2021-09-03
Publication Date 2022-03-24
Owner HITACHI METALS, LTD. (Japan)
Inventor Itatani Masaaki

Abstract

In the present invention, a temperature sensor used in a mass flow rate meter is configured from a flow path through which a fluid flows, a temperature measurement means that has a temperature measurement point at the center of a lateral cross-section of the flow path, and a soaking means provided farther upstream in the flow path than the temperature measurement point. The soaking means is provided with a grating provided continuously in a discretionary direction perpendicular to the direction in which the fluid flows, and an auxiliary flow path that is branched by the grating. This makes it possible to realize a temperature sensor with which it is possible to acquire a temperature measurement value representing the temperature of a fluid that is supplied to a mass flow rate meter from the outside, even when the temperature of the fluid fluctuates.

IPC Classes  ?

  • G01F 1/684 - Structural arrangements; Mounting of elements, e.g. in relation to fluid flow
  • G01K 13/02 - Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow

38.

Ni-BASED ALLOY POWDER AND METHOD FOR MANUFACTURING LAMINATION MOLDED ARTICLE USING SAID Ni-BASED ALLOY POWDER

      
Application Number JP2021032883
Publication Number 2022/054803
Status In Force
Filing Date 2021-09-07
Publication Date 2022-03-17
Owner HITACHI METALS,LTD. (Japan)
Inventor
  • Daigo Yuzo
  • Sugahara Katsuo

Abstract

An Ni-based alloy powder containing, in mass%, 3.5-4.5% of Al, 0.8-4.0% of Cr, not more than 0.0100% of C, 0.001-0.050% of O, and 0.0001-0.0150% of N, the remaining portion being Ni and unavoidable impurities.

IPC Classes  ?

  • C22C 19/05 - Alloys based on nickel or cobalt based on nickel with chromium
  • B33Y 10/00 - Processes of additive manufacturing
  • B33Y 70/00 - Materials specially adapted for additive manufacturing
  • B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
  • B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
  • B22F 10/30 - Process control

39.

POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, AND LITHIUM ION SECONDARY BATTERY IN WHICH SAME IS USED

      
Application Number JP2021025695
Publication Number 2022/014449
Status In Force
Filing Date 2021-07-07
Publication Date 2022-01-20
Owner HITACHI METALS,LTD. (Japan)
Inventor
  • Tokoro Hisato
  • Takano Shuichi
  • Nakabayashi Takashi
  • Takahashi Shin

Abstract

1+abcde2+α2+α [In compositional formula (1), M is at least one element selected from Al and Mn, X is at least one element other than Li, Ni, Co, Al, and Mn, –0.1≤a≤0.1, 0.8≤b<1.0, 0≤c≤0.2, 0≤d≤0.2, 0≤e≤0.05, b+c+d+e=1, and –0.2≤α≤0.2.]

IPC Classes  ?

  • H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
  • H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy

40.

STAINLESS STEEL FOIL, SPRING FOR SWITCH, SUBSTRATE FOR FLEXIBLE DISPLAY, AND MANUFACTURING METHOD OF STAINLESS STEEL FOIL

      
Application Number JP2021024230
Publication Number 2022/014307
Status In Force
Filing Date 2021-06-25
Publication Date 2022-01-20
Owner HITACHI METALS, LTD. (Japan)
Inventor
  • Horibe, Takahiro
  • Ishio, Masaaki

Abstract

This stainless steel foil (1) is configured from stainless steel (110a), wherein a non-metallic inclusion (2) in a cross-sectional view thereof has a circle-equivalent diameter (R) of less than 3 µm.

IPC Classes  ?

  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C22C 38/40 - Ferrous alloys, e.g. steel alloys containing chromium with nickel

41.

LIQUID LEVEL SENSOR

      
Application Number JP2021024612
Publication Number 2022/004739
Status In Force
Filing Date 2021-06-29
Publication Date 2022-01-06
Owner HITACHI METALS, LTD. (Japan)
Inventor Sasaki Akira

Abstract

This liquid level sensor 1 includes: a sleeve 2 that is provided in a vertical direction; a float 3 that moves along the sleeve as a liquid level fluctuates; a resistance row 4; a plurality of grounding means 5 that are provided inside the sleeve; and a liquid level signal output means 6 that extracts, as a liquid level signal that is a signal corresponding to the liquid level, an electric signal detected between a positive electrode side end part 4a and a connection part grounded by the grounding means 5, and further includes a warning signal output means 7 that outputs a warning signal when the float 3 is located within a predetermined distance from a warning position that is a predetermined position within a movable range of the float 3. Accordingly, a compact and highly reliable liquid level sensor is achieved.

IPC Classes  ?

  • G01F 23/62 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using elements rigidly fixed to, and rectilinearly moving with, the floats as transmission elements using magnetically actuated indicating means
  • G01F 23/56 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using elements rigidly fixed to, and rectilinearly moving with, the floats as transmission elements

42.

ADSORPTION MEMBER AND METHOD FOR MANUFACTURING SAME

      
Application Number JP2021021818
Publication Number 2021/251401
Status In Force
Filing Date 2021-06-08
Publication Date 2021-12-16
Owner HITACHI METALS, LTD. (Japan)
Inventor
  • Kashi Mieko
  • Saeki Tomonori
  • Nakano Keiko
  • Ishizawa Toshitaka

Abstract

Provided is an adsorption member that has exceptional adsorption capabilities with respect to foulants having relatively small molecular weights. The adsorption member has a plurality of flow paths through which treatment water passes, and a partition wall that partitions between the flow paths, wherein the wall part has a porous ceramic substrate in which are formed through-holes by which the treatment water can pass between adjacent flow paths, and a layer of metal oxide particles that are secured to the surfaces of the flow paths and the surfaces of the through-holes. In regard to the partition wall, the ratio (B/A) of the total pore specific surface area B of pores having a diameter of 6-10 nm (inclusive) as measured by mercury intrusion and the total pore specific surface area A of pores having a diameter of 1-100 nm (inclusive) as measured by gas adsorption is 49.3% or greater.

IPC Classes  ?

  • B01J 20/12 - Naturally occurring clays or bleaching earth
  • B01J 20/08 - Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group comprising bauxite
  • B01J 20/28 - Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
  • B01J 20/30 - Processes for preparing, regenerating or reactivating
  • C02F 1/28 - Treatment of water, waste water, or sewage by sorption
  • C04B 35/195 - Alkaline earth aluminosilicates, e.g. cordierite
  • C04B 38/06 - Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances

43.

NI-BASED ALLOY FOR HOT DIE, AND HOT-FORGING DIE USING SAME

      
Application Number JP2021019824
Publication Number 2021/241585
Status In Force
Filing Date 2021-05-25
Publication Date 2021-12-02
Owner HITACHI METALS,LTD. (Japan)
Inventor
  • Suzuki Shogo
  • Date Masayoshi

Abstract

Provided are a Ni-based alloy for a hot die, and a hot-forging die using this Ni-based alloy, the Ni-based alloy having high high-temperature compressive strength, oxidation resistance, and tensile strength, and capable of achieving high productivity and a long die service life. This Ni-based alloy for a hot die comprises, by mass%, 12.0-16.0% of W, 1.0-5.0% of Mo, 5.0-7.5% of Al, 0.5-5.0% of Cr, 0.5-7.0% of Ta, 0.1-3.5% of Ti, 0.01-0.25% of C, 0.0005-0.01% of N, 0.05% or less of B, 0.015% or less of S, a total of 0-0.020% of one or more elements selected from the rare-earth elements Y, Ca, and Mg, a total of 1.5% or less of one or more elements selected from Zr and Hf, 3.5% or less of Nb, 15.0% or less of Co, with the remainder being Ni and unavoidable impurities, and C and N satisfying relational expression 1. [Relational expression 1] C/100≤N≤C (where C and N signify the content of each component in mass%).

IPC Classes  ?

  • B21J 13/02 - Dies or mountings therefor
  • C22C 19/05 - Alloys based on nickel or cobalt based on nickel with chromium

44.

NI-CR-MO ALLOY MEMBER, NI-CR-MO ALLOY POWDER, AND COMPOSITE MEMBER

      
Application Number JP2021013847
Publication Number 2021/201106
Status In Force
Filing Date 2021-03-31
Publication Date 2021-10-07
Owner HITACHI METALS, LTD. (Japan)
Inventor
  • Shiratori Hiroshi
  • Shinagawa Kazuya
  • Koseki Shuho
  • Kuwabara Kousuke
  • Ohtsubo Yasuhiko

Abstract

Provided are a Ni-Cr-Mo alloy, a Ni-Cr-Mo alloy powder, a Ni-Cr-Mo alloy member, and a member which can be molten and solidified, and are superior in corrosion resistance, abrasion resistance and crack resistance. A Ni-Cr-Mo alloy according to the present invention is characterized by being a lamination molding body containing 18-22 mass% of Cr, 18-39 mass% of Mo, 1.5-2.5 mass% of Ta, 1.0-2.5 mass% of B, and the balance comprising Ni and inevitable impurities, satisfying 25≤Cr+(Mo/2B)<38, and having a parent phase where boride particles having a maximum particle size of 70 μm or less are dispersed and precipitated.

IPC Classes  ?

  • B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
  • B22F 7/04 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting of composite layers with one or more layers not made from powder, e.g. made from solid metal
  • C22C 30/00 - Alloys containing less than 50% by weight of each constituent
  • C22C 30/02 - Alloys containing less than 50% by weight of each constituent containing copper
  • C22C 19/05 - Alloys based on nickel or cobalt based on nickel with chromium
  • B33Y 80/00 - Products made by additive manufacturing
  • B33Y 70/00 - Materials specially adapted for additive manufacturing
  • B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
  • B22F 3/16 - Both compacting and sintering in successive or repeated steps

45.

ALLOY, ALLOY POWDER, ALLOY MEMBER, AND COMPOSITE MEMBER

      
Application Number JP2021013889
Publication Number 2021/201118
Status In Force
Filing Date 2021-03-31
Publication Date 2021-10-07
Owner HITACHI METALS, LTD. (Japan)
Inventor
  • Shiratori Hiroshi
  • Shinagawa Kazuya
  • Kuwabara Kousuke
  • Koseki Shuho

Abstract

The present invention provides an alloy, alloy powder, an alloy member, and a composite member which are excellent in corrosion resistance and abrasion resistance, have crack resistance, and are suitable for an additive fabrication method and the like. The alloy and the alloy powder: contain, by mass%, Cr: 18-22%, Mo: 18-28%, Ta: 1.5-57%, and C: 1.0-2.5%; comprise Nb: 0-42%, Ti: 0-15%, V: 0-27%, Zr: 0-29%, and the balance Ni and inevitable impurities; and satisfy (Ta + 0.7 Nb + Ti + 0.6 V + Zr)/C = 0.5-1.5 in terms of molar ratio. The alloy member is an additively fabricated body or a casting having such a solidification structure, said solidification structure having carbide and a metallic phase having a face-centered cubic lattice structure, and forming a dendrite crystalline structure. The composite member has a substrate and an alloy layer formed on a surface of the substrate, wherein the alloy layer is an additively fabricated body having this kind of solidification structure, said solidification structure having carbide and the metallic phase having the face-centered cubic lattice structure, and forming the dendrite crystalline structure.

IPC Classes  ?

  • B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
  • B22F 7/04 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting of composite layers with one or more layers not made from powder, e.g. made from solid metal
  • C22C 27/02 - Alloys based on vanadium, niobium or tantalum
  • C22C 30/00 - Alloys containing less than 50% by weight of each constituent
  • C22C 30/02 - Alloys containing less than 50% by weight of each constituent containing copper
  • C22C 1/04 - Making non-ferrous alloys by powder metallurgy
  • C22C 19/05 - Alloys based on nickel or cobalt based on nickel with chromium
  • B33Y 80/00 - Products made by additive manufacturing
  • B33Y 70/00 - Materials specially adapted for additive manufacturing
  • B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
  • B22F 3/16 - Both compacting and sintering in successive or repeated steps

46.

BATTERY TERMINAL AND METHOD FOR MANUFACTURING BATTERY TERMINAL

      
Application Number JP2020047232
Publication Number 2021/199518
Status In Force
Filing Date 2020-12-17
Publication Date 2021-10-07
Owner
  • HITACHI METALS, LTD. (Japan)
  • AOYAMA SEISAKUSHO IBARAKI PLANT CO., LTD. (Japan)
Inventor
  • Kitagawa, Takao
  • Yokota, Masayuki
  • Ishii, Naonori
  • Nakano, Hirofumi

Abstract

This negative pole terminal 20 (the battery terminal) is provided with a shaft section 21, a flange section 22 which extends in the radial direction from sides of the shaft section 21, and a recess section 23 enclosed by a wall section 24 which extends beyond the tip end of a Cu layer 32 side of the shaft section 21. In the axial-direction cross section of the shaft section 21, the cross-sectional area of Cu crystal grains which constitute a Cu portion 33 comprising the Cu layer 32 of the wall section 24 is 10 µm2to 100 µm2, inclusive.

IPC Classes  ?

47.

SENSOR

      
Application Number JP2021006277
Publication Number 2021/192754
Status In Force
Filing Date 2021-02-19
Publication Date 2021-09-30
Owner HITACHI METALS, LTD. (Japan)
Inventor Sasaki Akira

Abstract

This sensor is provided with a protection tube which is fixed in a through-hole formed in the partition wall of a container, a detection unit which is arranged inside of the protection tube, a lead wire which is connected to the detection unit inside of the protection tube, and a fixed member which is fixed to the partition wall, wherein the lead wire is detachably fixed to the fixed member outside of the protection tube. In one favorable embodiment, the container is an airtight container and the protection tube is integrally and inseparably fixed to the partition wall. In this way, a sensor provided with a detection unit and a lead wire inside of a protection tube fixed to the partition wall of the container can be provided which, with a simple structure, facilitates partial replacement of members during failure and/or adjustment of the position of the detection unit.

IPC Classes  ?

  • G01F 23/30 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
  • G01F 23/60 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using elements rigidly fixed to, and rectilinearly moving with, the floats as transmission elements using electrically actuated indicating means
  • G01F 23/62 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using elements rigidly fixed to, and rectilinearly moving with, the floats as transmission elements using magnetically actuated indicating means
  • G01R 33/07 - Hall-effect devices
  • G01K 1/14 - Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
  • G01K 7/00 - Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat

48.

MIXED POWDER PRODUCTION METHOD, MIXED POWDER PRODUCTION DEVICE, ADDITIVE MANUFACTURING METHOD, AND ADDITIVE MANUFACTURING DEVICE

      
Application Number JP2021008546
Publication Number 2021/192901
Status In Force
Filing Date 2021-03-04
Publication Date 2021-09-30
Owner HITACHI METALS,LTD. (Japan)
Inventor
  • Kawabata Yuji
  • Koseki Shuho
  • Sugawara Hiroki

Abstract

The objective of the present invention is to provide a mixed powder production method, a mixed powder production device, an additive manufacturing method, and an additive manufacturing device, with which a plurality of types of powders can be accurately and quickly mixed in a desired mixing ratio. This mixed powder production method uses a plurality of types of powders as a raw material, and has: a first step, in which a plurality of raw material powder supply passages, which are provided respectively for each of the plurality of types of powders, are used to pressure-feed the plurality of types of powders to a gap space; a second step, in which the pressure-fed plurality of types of powders are sprayed into the gap space, which has a cross-sectional area larger than the total of the cross-sectional areas (the total cross-sectional area) of the plurality of raw material powder supply passages, thereby mixing the plurality of types of powders and obtaining a mixed powder; and a third step, in which the mixed powder is discharged from a discharge opening provided downstream from the gap space.

IPC Classes  ?

  • B23K 26/21 - Bonding by welding
  • B23K 26/34 - Laser welding for purposes other than joining
  • B33Y 10/00 - Processes of additive manufacturing
  • B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
  • B29C 64/141 - Processes of additive manufacturing using only solid materials
  • B29C 64/314 - Preparation
  • B29C 64/321 - Feeding
  • B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
  • B22F 3/16 - Both compacting and sintering in successive or repeated steps

49.

PRODUCTION METHOD FOR RARE-EARTH SINTERED MAGNET, AND WET-MOLDING DEVICE

      
Application Number JP2021009861
Publication Number 2021/193115
Status In Force
Filing Date 2021-03-11
Publication Date 2021-09-30
Owner HITACHI METALS, LTD. (Japan)
Inventor Tsukada Takashi

Abstract

The production method for a rare-earth sintered magnet according to the present disclosure comprises: a step for producing a molded article by compression-molding a slurry containing a rare-earth element-containing alloy powder and a dispersion medium using a wet-molding device; and a step for sintering the molded article. When the slurry is being poured into the inside of a space forming a cavity of the wet-molding device, a magnetic field is not applied. By pressing of the slurry, the dispersion medium contained in the slurry starts to be removed from the inside of the space.

IPC Classes  ?

  • H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets
  • H01F 1/057 - Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
  • B22F 3/02 - Compacting only

50.

METHOD FOR PRODUCING THERMOELECTRIC CONVERSION ELEMENT

      
Application Number JP2021011561
Publication Number 2021/193481
Status In Force
Filing Date 2021-03-22
Publication Date 2021-09-30
Owner HITACHI METALS,LTD. (Japan)
Inventor
  • Matsuda Michiko
  • Shimada Takeshi

Abstract

Conventional thermoelectric conversion elements have a problem such that if a thermoelectric conversion element is increased in size for mass production, the pressure during the sintering under pressure becomes insufficient due to load shortage caused by increase in the area of a surface to be pressurized, so that the thermoelectric conversion element becomes susceptible to relative density deficiency. As a means for solving the problem, the present invention provides a method for producing a thermoelectric conversion element, said method being characterized by comprising: a step for obtaining a mixture by mixing a skutterudite type thermoelectric conversion material powder which contains Sb and a sintering assistant which contains a compound that is composed of Mn and Sb; and a step for sintering the mixture.

IPC Classes  ?

  • H01L 35/18 - Selection of the material for the legs of the junction using inorganic compositions comprising arsenic or antimony or bismuth
  • H01L 35/34 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof

51.

ALLOY AND MEMBER

      
Application Number JP2021011706
Publication Number 2021/193529
Status In Force
Filing Date 2021-03-22
Publication Date 2021-09-30
Owner HITACHI METALS, LTD. (Japan)
Inventor
  • Iwasaki, Tomio
  • Shiratori, Hiroshi
  • Kimura, Tatsuya
  • Koseki, Shuho

Abstract

The present invention provides an alloy which has resistance to an aluminum alloy in a molten state, and the like. This alloy contains Nb and Mo as a first element group and at least one element selected from among Ta, W, Ti, Hf and Zr as a second element group, wherein: the content range of each element contained therein is from 5 to 35 at% if the total of the first element group and the second element group is taken as 100 at%; and the lattice mismatch with at least one element selected from among Al, Cu and Zn is 13% or more. This alloy has a resistance with a dislocation movement barrier energy of 310 kJ/mol or more.

IPC Classes  ?

  • C22C 30/00 - Alloys containing less than 50% by weight of each constituent

52.

STEEL FOR HOT WORKING DIE, DIE FOR HOT WORKING, AND MANUFACTURING METHOD FOR SAME

      
Application Number JP2021010616
Publication Number 2021/187484
Status In Force
Filing Date 2021-03-16
Publication Date 2021-09-23
Owner HITACHI METALS,LTD. (Japan)
Inventor
  • Yamanaka Shuji
  • Hirashige Takayuki
  • Fukumoto Shiho

Abstract

Provided are: a steel that is for a die and that enables production of a die being for hot working and having both high hardness and high thermal conductivity; a die for hot working; and a manufacturing method for the same. The steel for a hot working die has a compositional makeup containing, in mass%, 0.45-0.65% of C, 0.1-0.6% of Si, 0.1-2.5% of Mn, 1.0-6.0% of Cr, 1.2-3.5% of (Mo+1/2W) where Mo and W are contained independently or in combination, 0.1-0.5% of V, 0.15-0.6% of Ni, 0.1-0.6% of Cu, and 0.1-0.6% of Al, the balance being Fe and inevitable impurities. Further, this die for hot working has said compositional makeup, and this manufacturing method is for manufacturing said die for hot working.

IPC Classes  ?

  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C21D 1/06 - Surface hardening
  • C21D 9/00 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
  • C22C 38/58 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese

53.

METHOD FOR MANUFACTURING Fe-Co-BASED ALLOY ROD, AND Fe-Co-BASED ALLOY ROD

      
Application Number JP2021009570
Publication Number 2021/182518
Status In Force
Filing Date 2021-03-10
Publication Date 2021-09-16
Owner HITACHI METALS,LTD. (Japan)
Inventor
  • Fujiyoshi Masaru
  • Uesaka Shujiroh
  • Kobayashi Kouji

Abstract

Provided are an Fe-Co-based alloy rod and a method for manufacturing same, whereby excellent magnetic properties can be reliably obtained. The method for manufacturing an Fe-Co-based alloy rod comprises a heating straightening step for applying tensile stress to a hot-rolled material of an Fe-Co-based alloy while heating the hot-rolled material to a temperature of 500-900°C. Preferably, ohmic heating is used as a heating means in the heating straightening step. In addition, the Fe-Co-based alloy rod has 20% or more by area ratio of crystal grains having a grain orientation spread (GOS) value of at least 0.5°.

IPC Classes  ?

  • C21D 6/00 - Heat treatment of ferrous alloys
  • C22C 19/07 - Alloys based on nickel or cobalt based on cobalt
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
  • C22F 1/10 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
  • H01F 1/14 - Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys

54.

PRODUCTION METHOD FOR FE-BASED AMORPHOUS ALLOY POWDER

      
Application Number JP2020010225
Publication Number 2021/181512
Status In Force
Filing Date 2020-03-10
Publication Date 2021-09-16
Owner HITACHI METALS, LTD. (Japan)
Inventor
  • Nishimura Kazunori
  • Kato Tetsuro
  • Nakata Shinichi

Abstract

A method for producing an Fe-based amorphous alloy powder, the method comprising: an embrittlement step for heating and embrittling an aggregate body of a foil-shaped Fe-based amorphous alloy; a disintegrating step for roughly fracturing the aggregate body; a screening step for screening the resultant disintegrated bodies for a predetermined size using a screening means to obtain small pieces of the Fe-based amorphous alloy; and a pulverization step for subjecting the small pieces of the Fe-based amorphous alloy to dry pulverization using a pulverization means, wherein the screening means includes a cylindrical body having a large number of through-holes, the cylindrical body is rotated about an axis with the disintegrated bodies placed inside the cylindrical body so that the disintegrated bodies are disintegrated into separate foils, which are in turn divided into small pieces and are caused to pass through the through-holes formed in the cylindrical body.

IPC Classes  ?

  • B22F 9/04 - Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor using physical processes starting from solid material, e.g. by crushing, grinding or milling
  • B22D 11/06 - Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
  • H01F 1/153 - Amorphous metallic alloys, e.g. glassy metals

55.

METHOD FOR MANUFACTURING HOT-FORGED MEMBER

      
Application Number JP2021010022
Publication Number 2021/182606
Status In Force
Filing Date 2021-03-12
Publication Date 2021-09-16
Owner HITACHI METALS,LTD. (Japan)
Inventor
  • Yamashita Yoji
  • Aoki Chuya
  • Kobayashi Shinichi

Abstract

Provided is a method for manufacturing a hot-forged member, the method enabling efficient hot forging while preventing defects such as cracks even if a hard-to-work alloy is used as a hot forging material. The method for manufacturing a hot-forged member comprises: a heating step in which an unheated material to be hot-forged is heated to a hot forging temperature in a heating furnace; a heat-resistant insulation bonding step in which heat-resistant insulation is bonded to at least a portion of the surface of the forging material, which has been removed from the heating furnace, to create a hot forging material; and a hot forging step in which any of a mold, an anvil, and a tool is used to compress and mold some or all of the hot forging material into a prescribed shape.

IPC Classes  ?

  • B21J 1/02 - Preliminary treatment of metal stock without particular shaping, e.g. salvaging segregated zones, forging or pressing in the rough
  • B21J 3/00 - Lubricating during forging or pressing
  • B21J 5/00 - Methods for forging, hammering, or pressing; Special equipment or accessories therefor

56.

ALUMINUM-BASED BRAZING MATERIAL AND METHOD FOR PRODUCING SAME, AND METHOD FOR PRODUCING CERAMIC COMPOSITE SUBSTRATE

      
Application Number JP2021005850
Publication Number 2021/177030
Status In Force
Filing Date 2021-02-17
Publication Date 2021-09-10
Owner HITACHI METALS,LTD. (Japan)
Inventor
  • Okamoto Atsushi
  • Matsuda Junichi
  • Takahashi Shin
  • Abe Toshio

Abstract

The productivity of an aluminum-based brazing material is poor. This method for producing an aluminum-based brazing material is characterized by including: a step for producing a plating solution containing an Al ion and a Ti ion; and a step for immersing a substrate and electrodes in the plating solution to apply an electric current, thereby forming a first metal layer which comprises 0.01 to 10 at%, inclusive, of Ti and a remainder comprising Al and unavoidable impurities on the substrate.

IPC Classes  ?

  • C25D 1/00 - Electroforming
  • B23K 35/28 - Selection of soldering or welding materials proper with the principal constituent melting at less than 950°C
  • C04B 37/02 - Joining burned ceramic articles with other burned ceramic articles or other articles by heating with metallic articles
  • C22C 21/00 - Alloys based on aluminium

57.

BLACK HEART MALLEABLE CAST IRON AND METHOD FOR PRODUCING SAME

      
Application Number JP2021008746
Publication Number 2021/177454
Status In Force
Filing Date 2021-03-05
Publication Date 2021-09-10
Owner HITACHI METALS, LTD. (Japan)
Inventor Goto, Ryo

Abstract

A black heart malleable cast iron according to one embodiment of the present invention comprises a ferrite matrix and graphite aggregates contained in the matrix, while containing, in terms of the mass ratio, from 50 ppm to 100 ppm of boron and from 65 ppm to 200 ppm of nitrogen. With respect to this black heart malleable cast iron, the crystal grain size number of the matrix is from 8.0 to 10.0, said crystal grain size number being obtained by quantifying the grain size of the matrix by comparing the metal structure photograph thereof with the standard diagram of crystal grain sizes.

IPC Classes  ?

58.

ALLOY MEMBER PRODUCTION METHOD, ALLOY MEMBER, AND PRODUCT USING ALLOY MEMBER

      
Application Number JP2021003382
Publication Number 2021/176910
Status In Force
Filing Date 2021-01-29
Publication Date 2021-09-10
Owner HITACHI METALS,LTD. (Japan)
Inventor
  • Kuwabara Kousuke
  • Koseki Shuho

Abstract

The invention provides a production method for an alloy member having mainly high hardness and high resistance to corrosion and produced by a layer stacking shaping method, the alloy member, and a product using the alloy member. The alloy member production method is characterized by comprising: a layer stacking shaping step for forming a shaped member via a layer stacking shaping method using an alloy powder including Co, Cr, Fe, Ni, and Ti elements respectively in a range of between 5 atom% and 35 atom%, and including Mo in a range exceeding 0 atom% to 8 atom%, the remainder being unavoidable impurities; and a heat processing step for holding the shaped member in a temperature range exceeding 500°C to lower than 900°C directly after the layer stacking shaping step without passing through a step for holding the shaped member in a temperature range of between 1,080°C and 1,180°C.

IPC Classes  ?

  • B22F 9/08 - Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
  • B22F 9/20 - Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor using chemical processes with reduction of metal compounds starting from solid metal compounds
  • B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
  • B22F 3/16 - Both compacting and sintering in successive or repeated steps
  • B22F 3/24 - After-treatment of workpieces or articles

59.

CLAD MATERIAL

      
Application Number JP2020035788
Publication Number 2021/166307
Status In Force
Filing Date 2020-09-23
Publication Date 2021-08-26
Owner HITACHI METALS, LTD. (Japan)
Inventor
  • Yagi Noritomo
  • Tonogi Tatsuya
  • Yamamoto Yoshiki
  • Kodama Kenji

Abstract

This clad material has a relative permeability not more than 1.001 and includes a first layer (1) formed of pure copper or a first Cu alloy containing 95.0 mass% or more of Cu and a second layer (2) that is bonded to at least one surface of the first layer (1) at a thickness of 1 µm or more and that is formed of a second Cu alloy which is a Cu-Ni alloy containing 5.0-45.0 mass% of Ni.

IPC Classes  ?

  • C22C 9/00 - Alloys based on copper
  • C22C 9/04 - Alloys based on copper with zinc as the next major constituent
  • C22C 9/06 - Alloys based on copper with nickel or cobalt as the next major constituent
  • B32B 15/01 - Layered products essentially comprising metal all layers being exclusively metallic

60.

METHOD FOR PRODUCING MARTENSITIC STAINLESS STEEL STRIP, AND MARTENSITIC STAINLESS STEEL STRIP

      
Application Number JP2021002614
Publication Number 2021/153549
Status In Force
Filing Date 2021-01-26
Publication Date 2021-08-05
Owner HITACHI METALS,LTD. (Japan)
Inventor Fujihara Hiroyoshi

Abstract

The present invention provides: a martensitic stainless steel strip which has more excellent fatigue characteristics and mechanical strength than conventional martensitic stainless steel strips; and a production method which is capable of easily producing this martensitic stainless steel strip. A method for producing a martensitic stainless steel strip, said method comprising: a quenching step wherein a steel strip, which contains, in mass%, from 0.3% to 1.2% of C and from 10.0% to 18.0% of Cr and has a thickness of 1 mm or less, is passed through a quenching furnace so as to be heated to a quenching temperature, and is subsequently cooled to a temperature that is not more than the Ms point; a heat retention conveyance step wherein the steel strip, which has been cooled to a temperature that is not more than the Ms point in the quenching step, is conveyed to a tempering furnace, while retaining the temperature of the steel strip so as not to decrease to a temperature less than 80°C; and a tempering step wherein the steel strip, which has been conveyed, while having the temperature thereof retained so as not to decrease to a temperature less than 80°C in the heat retention conveyance step, is passed through the tempering furnace in a non-oxidizing gas atmosphere so as to be heated to a tempering temperature. In addition, a martensitic stainless steel strip which has a residual austenite amount of from 10% by volume to 25% by volume.

IPC Classes  ?

  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
  • C21D 9/56 - Continuous furnaces for strip or wire
  • C21D 9/573 - Continuous furnaces for strip or wire with cooling
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C22C 38/18 - Ferrous alloys, e.g. steel alloys containing chromium
  • C22C 38/52 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with cobalt

61.

METAL LAMINATE MOLDING FLOW PATH MEMBER AND MANUFACTURING METHOD THEREFOR

      
Application Number JP2020042272
Publication Number 2021/131379
Status In Force
Filing Date 2020-11-12
Publication Date 2021-07-01
Owner HITACHI METALS, LTD. (Japan)
Inventor
  • Miyata Motoyuki
  • Aoyagi Takuya
  • Daigo Yuzo
  • Miyake Tatsuya
  • Naito Takashi

Abstract

2523232322322O glass layer.

IPC Classes  ?

  • B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
  • B22F 3/16 - Both compacting and sintering in successive or repeated steps
  • B22F 3/24 - After-treatment of workpieces or articles
  • B22F 5/10 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
  • B22F 5/12 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of tubes or wires
  • C03C 8/16 - Glass frit mixtures having non-frit additions, e.g. opacifiers, colorants, mill additions with vehicle or suspending agents, e.g. slip
  • B33Y 10/00 - Processes of additive manufacturing
  • B33Y 80/00 - Products made by additive manufacturing
  • H01L 21/3065 - Plasma etching; Reactive-ion etching
  • H01L 21/304 - Mechanical treatment, e.g. grinding, polishing, cutting
  • C23C 26/00 - Coating not provided for in groups
  • F16L 58/14 - Coatings characterised by the materials used by ceramic or vitreous materials
  • F16L 9/02 - Rigid pipes of metal
  • F16L 9/14 - Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups

62.

METHOD FOR MANUFACTURING R-T-B BASED SINTERED MAGNET, AND R-T-B BASED SINTERED MAGNET

      
Application Number JP2020048486
Publication Number 2021/132476
Status In Force
Filing Date 2020-12-24
Publication Date 2021-07-01
Owner HITACHI METALS, LTD. (Japan)
Inventor
  • Fujimori Nobuhiko
  • Obata Tohru
  • Sonoda Kazuhiro
  • Kuniyoshi Futoshi
  • Furusawa Daisuke
  • Maki Tomohito
  • Mino Shuji
  • Saitou Kouta

Abstract

A method for manufacturing an R-T-B based sintered magnet according the present disclosure comprises: a step for preparing a coarse ground powder which is made from an alloy for R-T-B based sintered magnets and which has an average particle size of 10-500 μm; a step for obtaining a fine powder having an average particle size of 2.0-4.5 μm, by feeding the coarse ground powder to a jet mill device that has a grinding chamber filled with inert gas and grinding the coarse ground powder; and a step for producing a sintered body of the fine powder, wherein the inert gas has been humidified, and the oxygen content of the R-T-B based sintered magnet is 1000-3500 ppm by mass.

IPC Classes  ?

  • B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
  • B22F 9/04 - Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor using physical processes starting from solid material, e.g. by crushing, grinding or milling
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets
  • H01F 1/057 - Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
  • B22F 3/00 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor
  • B22F 3/02 - Compacting only
  • B22F 3/24 - After-treatment of workpieces or articles

63.

METHOD OF MANUFACTURING RING-ROLLED ELEMENT

      
Application Number JP2020046953
Publication Number 2021/131963
Status In Force
Filing Date 2020-12-16
Publication Date 2021-07-01
Owner HITACHI METALS, LTD. (Japan)
Inventor
  • Musha, Kazuya
  • Ohsone, Jun
  • Ishiwari, Yuji
  • Oji, Momoko

Abstract

Provided is a method of manufacturing a ring-rolled element that, despite a main roll of a ring-rolling device being provided with flanges positioned above and below a ring blank, can stabilize the posture of the ring blank, without defects or the like occurring in the obtained ring-rolled element. The ring-rolling device utilized in this method of manufacturing the ring-rolled element is provided with a main roll 10 and a mandrel roll 20. The outer-peripheral surface of the main roll has: a recessed part 12 for accommodating the ring blank and the outer-peripheral surface of the mandrel roll 20; an upper flange 11 located above the recessed part; and a lower flange 13 located below the recessed part. The inner surface of the recessed part has a rolling surface 12S that contacts the outer peripheral surface of the ring blank, an upper surface on the upper flange side, and a lower surface 13S on the lower flange side; and the lower surface 13S has a gradient such that the opening of the recessed part 12 widens. The gradient starts within the range from the line intersection between the lower surface 13S and the rolling surface 12S, to a distance equivalent to the thickness of the ring-rolled element. The angle of the gradient is more than 0.3° and 9° or less with a perpendicular plane serving as a reference standard.

IPC Classes  ?

  • B21B 5/00 - Extending closed shapes of metal bands by rolling
  • B21H 1/06 - Making articles shaped as bodies of revolution rings of restricted axial length
  • B21J 5/00 - Methods for forging, hammering, or pressing; Special equipment or accessories therefor

64.

MULTI-GAS MASS FLOW CONTROLLER AND METHOD

      
Application Number JP2020044766
Publication Number 2021/124876
Status In Force
Filing Date 2020-12-02
Publication Date 2021-06-24
Owner HITACHI METALS, LTD. (Japan)
Inventor Smirnov, Alexei V.

Abstract

Mass flow controllers and methods for controlling mass flow controllers are disclosed. One method includes providing a process gas through a flow sensor of the mass flow controller, obtaining a gas-adjusted sensitivity coefficient for the flow sensor, and obtaining gas-adjusted nonlinearity data for the flow sensor. The method also includes producing gas-adjusted characterization data for the flow sensor using the gas-adjusted sensitivity coefficient and the gas-adjusted nonlinearity data. A flow value from the gas-adjusted characterization data is obtained using a flow sensor signal from the flow sensor, and the flow value is used along with a setpoint signal to control a valve of the mass flow controller.

IPC Classes  ?

  • G01F 25/00 - Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
  • G05D 7/06 - Control of flow characterised by the use of electric means
  • G01F 1/00 - Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
  • G01F 1/68 - Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using thermal effects

65.

METHOD FOR PRODUCING NICKEL-BASED ALLOY PRODUCT OR TITANIUM-BASED ALLOY PRODUCT

      
Application Number JP2020043991
Publication Number 2021/106998
Status In Force
Filing Date 2020-11-26
Publication Date 2021-06-03
Owner HITACHI METALS, LTD. (Japan)
Inventor
  • Yoshihara, Mari
  • Murai, Takuya
  • Fukuda, Tadashi
  • Takahashi, Shoichi

Abstract

Provided is a method for producing a Ni-based or Ti alloy product, the method being capable of locally increasing the cooling rate and performing effective cooling. This method for producing a Ni-based alloy or Ti alloy product includes a cooling step in which a hot-worked material, which is made of a Ni alloy or Ti alloy and has been subjected to hot working, is processed in a predetermined shape in advance and heated and retained at a solid-solution treatment temperature to obtain a heat-retention material, and the heat-retention material is cooled to obtain a solid-solution-treated material, wherein in the cooling step, a flow path forming member having a space for forming a fluid flow path is arranged on the surface of the heat-retention material to form the fluid flow path formed by the surface of the heat-retention material and the inner surface of the space of the flow path forming member, and a fluid is made to flow through the fluid flow path formed between the flow path forming member and the heat-retention material and the fluid in the flow path locally cools the surface portion of the heat-retention material.

IPC Classes  ?

  • C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
  • C22F 1/10 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
  • C22F 1/18 - High-melting or refractory metals or alloys based thereon
  • C21D 1/00 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering

66.

MANUFACTURING METHOD FOR NICKEL-BASE ALLOY PRODUCT OR TITANIUM-BASE ALLOY PRODUCT

      
Application Number JP2020043993
Publication Number 2021/106999
Status In Force
Filing Date 2020-11-26
Publication Date 2021-06-03
Owner HITACHI METALS, LTD. (Japan)
Inventor
  • Yoshihara, Mari
  • Murai, Takuya
  • Fukuda, Tadashi
  • Takahashi, Shoichi

Abstract

Provided is a manufacturing method for a nickel-base alloy product or a titanium-base alloy product with which is possible to perform local cooling with certainty and perform effective cooling. A manufacturing method for a nickel-base alloy product or a titanium-base alloy product characterized by including: a heating/holding step for heating/holding a hot working material of a nickel-base alloy or a titanium-base alloy at a solid-solution processing temperature after hot forging or heat ring rolling so as to form a heating/holding material; and a cooling step for cooling the heating/holding material so as to form a solid-solution processing material, wherein, in the cooling step, local cooling is performed by bringing a cooling member into contact with a part of a surface of the heating/holding material.

IPC Classes  ?

  • C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
  • C22F 1/10 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
  • C22F 1/18 - High-melting or refractory metals or alloys based thereon
  • C21D 1/00 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering

67.

FOIL FOR NEGATIVE-ELECTRODE CURRENT COLLECTOR OF SECONDARY CELL

      
Application Number JP2019044723
Publication Number 2021/095203
Status In Force
Filing Date 2019-11-14
Publication Date 2021-05-20
Owner HITACHI METALS, LTD. (Japan)
Inventor
  • Oda, Yoshimitsu
  • Inoue, Ryoji

Abstract

This foil (negative-electrode current collector foil 5b) for a negative-electrode current collector of a secondary cell is such that a first Cu layer (51) configured from Cu or a Cu base alloy, a stainless steel layer (52), and a second Cu layer (53) configured from Cu or a Cu base alloy are positioned in the stated order, and moreover is such that the total thickness is 200 μm or less and the 0.01% bearing force is 500 MPa or higher.

IPC Classes  ?

  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C22C 38/40 - Ferrous alloys, e.g. steel alloys containing chromium with nickel
  • H01M 4/66 - Selection of materials

68.

CERAMIC HONEYCOMB STRUCTURE AND METHOD FOR MANUFACTURING SAME

      
Application Number JP2020035603
Publication Number 2021/075211
Status In Force
Filing Date 2020-09-18
Publication Date 2021-04-22
Owner HITACHI METALS, LTD. (Japan)
Inventor Shimizu Kenichiro

Abstract

11=log(d20)-log(d80), which is the difference between the logarithm of the fine pore diameter d20 at which 20% is obtained and the logarithm of the fine pore diameter d80 at which 80% is obtained, is not more than 0.45.

IPC Classes  ?

  • B01D 39/20 - Other self-supporting filtering material of inorganic material, e.g. asbestos paper or metallic filtering material of non-woven wires
  • B01D 39/00 - Filtering material for liquid or gaseous fluids
  • B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
  • C04B 38/00 - Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
  • C04B 38/06 - Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances
  • F01N 3/022 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous

69.

CENTRIFUGALLY CAST COMPOSITE ROLL FOR HOT ROLLING USE

      
Application Number JP2020039148
Publication Number 2021/075561
Status In Force
Filing Date 2020-10-16
Publication Date 2021-04-22
Owner HITACHI METALS, LTD. (Japan)
Inventor
  • Nozaki Yasunori
  • Oda Nozomu
  • Hattori Toshiyuki

Abstract

A centrifugally cast composite roll for hot rolling use, comprising an outer layer and an inner layer which are integrated with each other by fusion bonding, wherein: the outer layer comprises a Fe-based alloy having a chemical composition containing, in terms of mass-based contents, 2.6 to 3.6% of C, 0.1 to 3% of Si, 0.3 to 2% of Mn, 2.3 to 5.5% of Ni, 0.5 to 3.2% of Cr, 0.3 to 1.6% of Mo, 1.8 to 3.4% of V and 0.7 to 2.4% of Nb, wherein the requirement represented by the formula: 1.4 ≤ V/Nb ≤2.7 is satisfied, the V equivalent (Veq = V+0.55Nb) is 2.60 to 4% by mass, and the remainder is made up by Fe and impurities; and the inner layer comprises an iron-based alloy.

IPC Classes  ?

  • B21B 27/00 - Rolls; Lubricating, cooling or heating rolls while in use
  • B22D 13/02 - Centrifugal casting; Casting by using centrifugal force of elongated solid or hollow bodies, e.g. pipes, in moulds rotating around their longitudinal axis
  • B22D 19/16 - Casting in, on, or around, objects which form part of the product for making compound objects cast of two or more different metals, e.g. for making rolls for rolling mills
  • C22C 33/08 - Making cast-iron alloys
  • C22C 37/00 - Cast-iron alloys

70.

AIRTIGHT CONNECTION UNIT, AIRTIGHT CONNECTION ASSEMBLY, AIRTIGHT CONTAINER AND VAPORIZER, AS WELL AS METHOD FOR MANUFACTURING AIRTIGHT CONNECTION ASSEMBLY

      
Application Number JP2020035184
Publication Number 2021/065529
Status In Force
Filing Date 2020-09-17
Publication Date 2021-04-08
Owner HITACHI METALS, LTD. (Japan)
Inventor Sasaki Akira

Abstract

In this airtight connection assembly comprising: a conduction member that configures a signal or fluid passageway; a sealing unit that includes a first sealing member having a shape for which it is possible to cover a first hole formed on a partition wall of an airtight container and a sealing material; and a connection part that includes a connector connected to either one or both end parts of the conduction member; a second hole which is a through hole formed to connect the interior of the airtight container and the outside is formed on the first sealing member, the conduction member is individually inserted in the second hole, and the sealing material is filled between the conduction member and the inner peripheral wall of the second hole. This makes it possible to transfer electrical signals, etc., between the interior of the airtight container and the outside while maintaining the airtightness of the airtight container using a simple configuration. It is also possible to further comprise a coupling member that couples the connector and the first sealing member, fixing the positional relationship of the connector and the first sealing member. It is also possible to further comprise a second sealing member that surrounds the first hole and is interposed between the partition wall and the first sealing member.

IPC Classes  ?

  • H01L 23/04 - Containers; Seals characterised by the shape
  • F02M 19/00 - SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF - Details, component parts, or accessories of carburettors, not provided for in, or of interest apart from, the apparatus of groups
  • H01R 9/16 - Fastening of connecting parts to base or case; Insulating connecting parts from base or case
  • H01R 43/20 - Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve
  • H05K 5/06 - Hermetically-sealed casings

71.

ZR-NB-BASED ALLOY MATERIAL, METHOD FOR MANUFACTURING SAID ALLOY MATERIAL, AND ZR-NB-BASED ALLOY PRODUCT

      
Application Number JP2020036836
Publication Number 2021/065886
Status In Force
Filing Date 2020-09-29
Publication Date 2021-04-08
Owner HITACHI METALS, LTD. (Japan)
Inventor
  • Tamura Shinya
  • Kimura Tomonori
  • Aono Yasuhisa

Abstract

The purpose of the present invention is to provide a Zr-Nb-based alloy material serving as a low-magnetic-susceptibility alloy that has high corrosion resistance while maintaining a magnetic susceptibility equal to or lower than that of conventional alloys for living bodies, a method for manufacturing the aforementioned alloy, and a Zr-Nb-based alloy product. The Zr-Nb-based alloy material according to the present invention is characterized by: having a chemical composition that includes 3-18 mass% (inclusive) of Nb, 12 mass% or less of Ti, 6 mass% or less of Cr, 6 mass% or less of Cu, and 5 mass% or less of Bi, the balance being Zr and unavoidable impurities; and being such that isothermal ω-phase particles are dispersively precipitated in β-phase crystal grains of a parent phase.

IPC Classes  ?

  • C22C 16/00 - Alloys based on zirconium
  • C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
  • C22F 1/18 - High-melting or refractory metals or alloys based thereon
  • C22B 9/16 - Remelting metals

72.

STATOR FOR ROTATING ELECTRICAL MACHINE, ROTATING ELECTRICAL MACHINE, METHOD FOR MANUFACTURING STATOR FOR ROTATING ELECTRICAL MACHINE, AND METHOD FOR MANUFACTURING ROTATING ELECTRICAL MACHINE

      
Application Number JP2020035856
Publication Number 2021/060298
Status In Force
Filing Date 2020-09-23
Publication Date 2021-04-01
Owner HITACHI METALS,LTD. (Japan)
Inventor
  • Kimura Mamoru
  • Sano Hirohisa
  • Aimuta Kyohei
  • Abe Toshio
  • Ohta Motoki

Abstract

Provided are: a rotating electrical machine having excellent characteristics and reliability, and including a stator in which second iron core portions, which are stacked bodies comprising an amorphous soft magnetic metal or a nanocrystalline soft magnetic metal, are disposed in a first iron core portion, which is a stacked body comprising electrical steel plates; the stator for the rotating electrical machine; a method for manufacturing the stator for the rotating electrical machine; and a method for manufacturing the rotating electrical machine. This stator for a rotating electrical machine is characterized by including an annular first iron core portion, which is a stacked body comprising electrical steel plates, and second iron core portions, which are stacked bodies comprising an amorphous soft magnetic metal or a nanocrystalline soft magnetic metal, wherein: the annular first iron core portion includes a plurality of tooth portions which project toward the inner circumferential side and around which a coil is wound, and first groove portions formed within each tooth portion from an outer circumferential surface; and the second iron core portions are arranged in the first groove portions.

IPC Classes  ?

  • H02K 1/02 - DYNAMO-ELECTRIC MACHINES - Details of the magnetic circuit characterised by the magnetic material
  • H02K 1/16 - Stator cores with slots for windings
  • H02K 1/18 - Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
  • H02K 15/02 - Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies

73.

ALLOY MEMBER PRODUCTION METHOD AND ALLOY MEMBER

      
Application Number JP2020033200
Publication Number 2021/054119
Status In Force
Filing Date 2020-09-02
Publication Date 2021-03-25
Owner HITACHI METALS,LTD. (Japan)
Inventor Kuwabara Kousuke

Abstract

Provided are: a method for producing an alloy member that is fabricated by additive manufacturing and has increased mechanical strength and ductility as well as higher corrosion resistance; and the alloy member produced from this method. The alloy member production method comprises: an additive manufacturing step for forming a molded member by additive manufacturing using an alloy powder containing each of Co, Cr, Fe, Ni, and Ti in the range of 5-35 atom% and Mo in the range of greater than 0 atom% and 8 atom% or less, the balance comprising unavoidable impurities; a heat treatment step for raising the temperature of the molded member through heating, and holding the molded member in the temperature range of 1080-1180°C; and a forced cooling step for cooling the molded member after the heat treatment in the temperature range from the holding temperature to 800°C at a cooling rate of 110-2400°C/min.

IPC Classes  ?

  • B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
  • B22F 3/16 - Both compacting and sintering in successive or repeated steps
  • B22F 3/24 - After-treatment of workpieces or articles
  • C22C 30/00 - Alloys containing less than 50% by weight of each constituent
  • C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
  • C22F 1/16 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon

74.

TARGET

      
Application Number JP2020033403
Publication Number 2021/054136
Status In Force
Filing Date 2020-09-03
Publication Date 2021-03-25
Owner HITACHI METALS,LTD. (Japan)
Inventor
  • Fukuoka Jun
  • Fujimoto Mitsuharu

Abstract

100-X-YXYY (wherein 5 ≤ X ≤ 40, 1 ≤ Y ≤ 15) in terms of atomic ratios, with the remainder made up by unavoidable impurities, wherein a FeW phase is dispersed in a matrix phase comprising NiW. In the target, it is more preferred that there are less than one FeW phase having an inscribed circle diameter of 400 μm or more and less than one W phase having an inscribed circle diameter of 15 μm or more per 0.12 mm2.

IPC Classes  ?

  • C23C 14/34 - Sputtering
  • G11B 5/738 - Base layers characterised by the intermediate layer
  • G11B 5/84 - Processes or apparatus specially adapted for manufacturing record carriers

75.

STEEL FOR KNIVES, STEEL FOR MARTENSITIC KNIVES, KNIFE, AND PRODUCTION METHOD FOR STEEL FOR MARTENSITIC KNIVES

      
Application Number JP2020033402
Publication Number 2021/045143
Status In Force
Filing Date 2020-09-03
Publication Date 2021-03-11
Owner HITACHI METALS,LTD. (Japan)
Inventor Fukumoto Kentaro

Abstract

Provided are: steel for knives, having a higher hardness and better corrosion resistance than conventional steel for knives; a knife; steel for martensitic knives; and a production method for same. The steel for knives comprises a component composition containing, in mass%, 0.45%–1.00% C, 0.1%–1.5% Si, 0.1%–1.5% Mn, 7.5%–11.0% Cr, and 0.5%–3.0% of either Mo or W or a complex of both (Mo + W/2), with the remainder being Fe and unavoidable impurities. Also provided are steel for martensitic knives and a knife. A production method for steel for martensitic knives is also provided that includes a quenching temperature at quenching of 1,050–1,250°C, a processing temperature for subzero processing of no more than –50°C, and a tempering temperature at tempering of 100–400°C, and obtains steel for martensitic knives that has a hardness of at least 700 HV.

IPC Classes  ?

  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C21D 9/18 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for knives, scythes, scissors, or like hand cutting tools
  • C22C 38/22 - Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
  • C22C 38/48 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals

76.

Ni-BASED ALLOY, Ni-BASED ALLOY POWDER, NI-BASED ALLOY MEMBER, AND PRODUCT PROVIDED WITH Ni-BASED ALLOY MEMBER

      
Application Number JP2020033557
Publication Number 2021/045183
Status In Force
Filing Date 2020-09-04
Publication Date 2021-03-11
Owner HITACHI METALS, LTD. (Japan)
Inventor
  • Shiratori Hiroshi
  • Shinagawa Kazuya
  • Koseki Shuho
  • Ohtsubo Yasuhiko
  • Kuwabara Kousuke

Abstract

Provided are a Ni-based alloy that can be melted and solidified and that has superior corrosion resistance and abrasion resistance, a Ni-based alloy powder, a Ni-based alloy member, and a product provided with the Ni-based alloy member. This Ni-based alloy having superior corrosion resistance and abrasion resistance contains, in mass%, 8.5-23.0% of Cr, 8.5-27.0% of Mo, 0.5-2.5% of Ta, 15.0-51.0% of W, and 1.0-3.5% of C, the remaining portion being Ni and unavoidable impurities, wherein the mass ratio Ni : Cr : Mo of Ni, Cr, and Mo is 2.5 to 3.5 : 1 : 1.0 to 1.5.

IPC Classes  ?

  • B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
  • B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
  • B22F 3/16 - Both compacting and sintering in successive or repeated steps
  • B29C 45/60 - Screws
  • C22C 27/04 - Alloys based on tungsten or molybdenum
  • C22C 30/00 - Alloys containing less than 50% by weight of each constituent
  • C22C 19/05 - Alloys based on nickel or cobalt based on nickel with chromium
  • B33Y 80/00 - Products made by additive manufacturing
  • B33Y 70/00 - Materials specially adapted for additive manufacturing

77.

METHOD FOR MANUFACTURING THERMOELECTRIC CONVERSION MODULE

      
Application Number JP2020033570
Publication Number 2021/045186
Status In Force
Filing Date 2020-09-04
Publication Date 2021-03-11
Owner HITACHI METALS,LTD. (Japan)
Inventor
  • Tohei Tomotake
  • Nogawa Takashi
  • Wang Nan
  • Matsuda Michiko
  • Shimada Takeshi

Abstract

In the case of manufacturing a thermoelectric conversion module using a paste including metal nanoparticles, it is difficult to apply the paste onto a thermoelectric conversion element in a controlled amount due to effects of specific fluid properties such as thixotropy, and it is difficult to obtain high output density as a thermoelectric conversion module due to an open circuit, a short circuit, or the like. This method is for manufacturing a thermoelectric conversion module in which a first conductive member, a thermoelectric conversion element, a second conductive member are joined by joining members, the method comprising: a step for, after applying on the first conductive member a first paste including metal particles, disposing the thermoelectric conversion element on the first paste, and compressing and spreading the first paste; a step for disposing the second conductive member, after applying a second paste including metal particles in a controlled amount, on the thermoelectric conversion element, and compressing and spreading the second paste; and a step for sintering the first and the second pastes to obtain joining members.

IPC Classes  ?

  • H01L 35/34 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
  • B22F 7/08 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting of composite workpieces or articles from parts, e.g. to form tipped tools with one or more parts not made from powder
  • H01L 35/08 - Structural details of the junction; Connections of leads non-detachable, e.g. cemented, sintered, soldered
  • H02N 11/00 - Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means

78.

POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERIES, METHOD FOR PRODUCING SAME, AND LITHIUM ION SECONDARY BATTERY

      
Application Number JP2020032980
Publication Number 2021/045025
Status In Force
Filing Date 2020-09-01
Publication Date 2021-03-11
Owner HITACHI METALS,LTD. (Japan)
Inventor
  • Toyama Tatsuya
  • Tokoro Hisato
  • Takahashi Shin
  • Gunji Akira
  • Takano Shuichi

Abstract

1+abcde2+α2+α. (In formula (1), M represent at least one element selected from among Al and Mn; X represents one or more metal elements other than Li, Ni, Co, Al and Mn; and a, b, c, d, e and α respectively represent numbers satisfying -0.04 ≤ a ≤ 0.04, 0.80 ≤ b ≤ 1.0, 0 ≤ c ≤ 0.15, 0 ≤ d ≤ 0.20, 0 ≤ e ≤ 0.05, (b + c + d + e) = 1 and -0.2 < α < 0.2.) With respect to this positive electrode active material for lithium ion secondary batteries, the residual lithium hydroxide amount (L1) of the positive electrode active material as calculated by neutralization titration is 0.8% by mass or less; and the ratio of the residual lithium hydroxide amount (L2) of the positive electrode active material as calculated by neutralization titration after being compressed under the pressure of 160 MPa to L1, namely L2/L1 is 1.10 or less.

IPC Classes  ?

  • H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
  • C01G 53/00 - Compounds of nickel
  • H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy

79.

PARASITIC FLOW CORRECTION METHOD AND APPARATUS

      
Application Number JP2020031710
Publication Number 2021/039665
Status In Force
Filing Date 2020-08-21
Publication Date 2021-03-04
Owner HITACHI METALS, LTD. (Japan)
Inventor Smirnov, Alexei V.

Abstract

Mass flow controllers and methods for correcting flow inconsistencies associated with parasitic flow of a fluid in mass flow controllers are disclosed. A method includes obtaining a pressure measurement signal of the fluid generated by a pressure sensor and receiving a flow sensor signal of the fluid generated by a flow sensor. An estimated parasitic flow signal is generated using the pressure measurement signal, and the flow sensor signal is accelerated to produce an accelerated flow sensor signal with a bandwidth that is comparable to that of the estimated parasitic flow signal. A corrected flow signal is generated using the accelerated flow sensor signal and the estimated parasitic flow signal to control the mass flow controller.

IPC Classes  ?

  • G05D 7/06 - Control of flow characterised by the use of electric means

80.

FE-SI-B-NB-BASED TARGET

      
Application Number JP2020031822
Publication Number 2021/039710
Status In Force
Filing Date 2020-08-24
Publication Date 2021-03-04
Owner HITACHI METALS,LTD. (Japan)
Inventor Fukuoka Jun

Abstract

100-X-Y-ZXYZZ, wherein 15 ≤ X + Y ≤ 35, 0.3 ≤ X/Y ≤ 2.0, 1 ≤ Z ≤ 20 and the balance inevitable impurities, and has an average Vickers hardness value of 200 to 1,100 HV as measured at five measurement points. The Vickers hardness is preferably in the range of 500 to 1,000 HV.

IPC Classes  ?

  • C23C 14/34 - Sputtering
  • B22F 3/00 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor
  • C22C 30/00 - Alloys containing less than 50% by weight of each constituent
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • H01F 1/147 - Alloys characterised by their composition
  • H01F 1/22 - Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together
  • H01F 41/18 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates by cathode sputtering

81.

FE-CO-SI-B-NB-BASED TARGET

      
Application Number JP2020031823
Publication Number 2021/039711
Status In Force
Filing Date 2020-08-24
Publication Date 2021-03-04
Owner HITACHI METALS,LTD. (Japan)
Inventor Fukuoka Jun

Abstract

1-a-bab100-X-Y-ZXYZZ, wherein a ≤ 0.95, b ≤ 0.30, 15 ≤ X + Y ≤ 35, 0.3 ≤ X/Y ≤ 2.0, 1 ≤ Z ≤ 20 and the balance inevitable impurities, and has an average Vickers hardness value of 250 to 1,100 HV as measured at five measurement points. The Vickers hardness is preferably in the range of 500 to 1,000 HV.

IPC Classes  ?

  • C23C 14/34 - Sputtering
  • B22F 3/00 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor
  • C22C 19/07 - Alloys based on nickel or cobalt based on cobalt
  • C22C 30/00 - Alloys containing less than 50% by weight of each constituent
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • H01F 1/147 - Alloys characterised by their composition
  • H01F 1/22 - Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together
  • H01F 41/18 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates by cathode sputtering

82.

FE-SI-B-NB-BASED TARGET

      
Application Number JP2020031824
Publication Number 2021/039712
Status In Force
Filing Date 2020-08-24
Publication Date 2021-03-04
Owner HITACHI METALS,LTD. (Japan)
Inventor Fukuoka Jun

Abstract

100-X-Y-Z-aXYZaa in terms of atomic ratio, where 15≤X+Y≤35, 0.3≤X/Y≤2.0, 1≤Z≤20, 0<a≤20, and M is at least one element selected from the group consisting of Al, Ti, V, Cr, Mn, Cu, Zr, Mo, W, and C, with the remainder comprising inevitable impurities, and has an average Vickers hardness value of 300-1100 HV as measured at 5 measurement points. The Vickers hardness is preferably in the range of 500-1000 HV.

IPC Classes  ?

  • C23C 14/34 - Sputtering
  • B22F 3/00 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor
  • C22C 30/02 - Alloys containing less than 50% by weight of each constituent containing copper
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • H01F 1/147 - Alloys characterised by their composition
  • H01F 1/22 - Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together
  • H01F 41/18 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates by cathode sputtering

83.

WC-BASED SUPER-HARD ALLOY POWDER, WC-BASED SUPER-HARD ALLOY MEMBER, AND METHOD FOR PRODUCING WC-BASED SUPER-HARD ALLOY MEMBER

      
Application Number JP2020032389
Publication Number 2021/039912
Status In Force
Filing Date 2020-08-27
Publication Date 2021-03-04
Owner HITACHI METALS, LTD. (Japan)
Inventor
  • Shiratori Hiroshi
  • Shinagawa Kazuya
  • Koseki Shuho
  • Kuwabara Kousuke
  • Ohtsubo Yasuhiko
  • Okamoto Shinya

Abstract

Provided are: a WC-based super-hard alloy powder capable of producing a WC-based super-hard alloy member having high thermal conductivity and high abrasion resistance; a WC-based super-hard alloy member; and a method for producing WC-based super-hard alloy member. This WC-based super-hard alloy powder is characterized by containing WC, Cu and at least one of Co, Fe and Cr, with the content of WC being 40 mass% or more, and the content of at least one of Co, Fe and Cr being not less than 25 mass% and less than 60 mass%, and is characterized in that the ratio a/b satisfies the relationship 0.070 ≤ a/b ≤ 1.000, where a denotes the content of Cu and b denotes the content of at least one of Co, Fe and Cr.

IPC Classes  ?

  • B21D 22/20 - Deep-drawing
  • B21D 37/01 - Selection of materials
  • B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
  • C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
  • C22C 1/05 - Mixtures of metal powder with non-metallic powder
  • B33Y 10/00 - Processes of additive manufacturing
  • B33Y 80/00 - Products made by additive manufacturing
  • B33Y 70/00 - Materials specially adapted for additive manufacturing

84.

MAGNETIC WEDGE, ROTATING ELECTRICAL MACHINE, AND METHOD FOR MANUFACTURING MAGNETIC WEDGE

      
Application Number JP2020030213
Publication Number 2021/033567
Status In Force
Filing Date 2020-08-06
Publication Date 2021-02-25
Owner HITACHI METALS,LTD. (Japan)
Inventor
  • Noguchi Shin
  • Kikuchi Keiko
  • Kimura Mamoru
  • Nishimura Kazunori

Abstract

Provided are a magnetic wedge having high electrical resistance and bending strength, a rotating electrical machine employing the same, and a method for manufacturing the magnetic wedge. This magnetic wedge includes a plurality of Fe-based soft magnetic particles, wherein the plurality of Fe-based soft magnetic particles contain an element M that is more readily oxidized than Fe, and are bound using an oxide phase including the element M.

IPC Classes  ?

  • H02K 3/493 - Slot-closing devices magnetic
  • B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
  • B22F 3/00 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor
  • B22F 3/24 - After-treatment of workpieces or articles
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • H01F 1/147 - Alloys characterised by their composition
  • H01F 1/24 - Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated
  • H01F 1/26 - Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated by macromolecular organic substances
  • H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets
  • H02K 15/04 - Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of windings, prior to mounting into machines

85.

CERAMIC HONEYCOMB FILTER

      
Application Number JP2020029227
Publication Number 2021/024902
Status In Force
Filing Date 2020-07-30
Publication Date 2021-02-11
Owner HITACHI METALS, LTD. (Japan)
Inventor Ogata Tomohisa

Abstract

This ceramic honeycomb filter which is provided with a plurality of flow passages partitioned by porous partition walls, and in which a fluid introduced from one end is discharged from the other end, wherein: the plurality of flow passages comprise inflow flow passages each having one open end and the other being a closed end, and outflow flow passages each having one closed end and the other being an open end; and in the cross-section perpendicular to the longitudinal direction of the flow passages, (a) the cross-sectional area of the inflow passages is greater than the cross-sectional area of the outflow passages, (b) the cross-section of each of the inflow and outflow passages is an octagons that is formed by cutting four corners of a square and is four-time rotationally symmetrical, (c) the inflow and outflow passages are arranged alternately in a first direction and a second direction perpendicular to the first direction and disposed so that facing sides are parallel to each other, (d) the opening ratio of the inflow passage is 45-60%, (e) the number of the flow passages is 30-60 pieces/cm2, (f) the thickness t1 of the partition wall between the inflow passages and the adjacent outflow passages is 0.150-0.260 mm, and (g) the thickness t2 of the partition wall between the inflow passages and the adjacent inflow passages satisfies 1.175

IPC Classes  ?

  • B01D 39/20 - Other self-supporting filtering material of inorganic material, e.g. asbestos paper or metallic filtering material of non-woven wires
  • B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
  • C04B 38/00 - Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
  • F01N 3/022 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous

86.

HEAT DISSIPATION PLATE AND METHOD FOR MANUFACTURING HEAT DISSIPATION PLATE

      
Application Number JP2020027034
Publication Number 2021/015007
Status In Force
Filing Date 2020-07-10
Publication Date 2021-01-28
Owner HITACHI METALS,LTD. (Japan)
Inventor
  • Miyashita Katsumi
  • Kodama Kenji
  • Tonogi Tatsuya

Abstract

An objective of the present invention is to provide a heat dissipation plate and method for manufacturing the same enabling the heat dissipation plate to have suitable low-thermal expansion characteristics while mitigating anisotropy of the thermal conductivity in the planar directions (length direction, width direction) and the thickness direction. This heat dissipation plate is formed from a high thermal conductivity section formed from a high thermal conductivity material and a plurality of low thermal expansion sections formed from a low thermal expansion material, and the plurality of low thermal expansion sections are respectively positioned consecutively in a line along the longitudinal direction of the high thermal conductivity material and so as to be in a mutual non-contact state in the longitudinal direction, the width direction, and the thickness direction of the high thermal conductivity section. This heat dissipation plate can be created by a manufacturing method which involves: positioning low thermal expansion sections (a plurality of core materials) consecutively in a line along the longitudinal direction of a high thermal conductivity section and so as to be in a mutually non-contact state in the longitudinal direction, the width direction, and the thickness direction of the high-thermal conductivity section to produce a composite wire thread material; flattening the composite wire thread material to obtain a composite wire material; and furthermore, rolling the composite wire material and shaping the same into a plate shape.

IPC Classes  ?

  • H01L 23/373 - Cooling facilitated by selection of materials for the device
  • B21B 1/38 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling sheets of limited length, e.g. folded sheets, superimposed sheets
  • H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating

87.

INSPECTION DEVICE, INSPECTION METHOD, POSITIONING METHOD, AND PROGRAM

      
Application Number JP2020026010
Publication Number 2021/010181
Status In Force
Filing Date 2020-07-02
Publication Date 2021-01-21
Owner HITACHI METALS, LTD. (Japan)
Inventor
  • Nishi, Yuichi
  • Someji, Takahiro
  • Sonoda, Masashi
  • Nishimura, Takayoshi
  • Enomoto, Atsuko
  • Nakasu, Nobuaki

Abstract

This inspection device 1 comprises: a robot arm 31 for gripping that grips an inspection target object 7; a camera 43; a measurement position calculation unit 142 that calculates a measurement position 10 for the camera 43 relative to the inspection target object 7, on the basis of shape data 8 for the inspection target object 7; a trajectory generation unit 143 that generates a trajectory for the robot arm 31 for gripping, on the basis of the measurement position 10; a robot control unit 13 that controls the action of the robot arm 31 for gripping, on the basis of the trajectory, and positions the inspection target object 7; a measurement unit 15 that, after positioning, uses the camera 43 and measures the inspection target object 7; and an inspection unit 16 that inspects the inspection target object 7 on the basis of the measured data.

IPC Classes  ?

  • B25J 13/08 - Controls for manipulators by means of sensing devices, e.g. viewing or touching devices
  • G01N 21/88 - Investigating the presence of flaws, defects or contamination

88.

FE-BASED AMORPHOUS ALLOY RIBBON, IRON CORE, AND TRANSFORMER

      
Application Number JP2020024910
Publication Number 2020/262493
Status In Force
Filing Date 2020-06-24
Publication Date 2020-12-30
Owner HITACHI METALS, LTD. (Japan)
Inventor
  • Itagaki, Hajime
  • Kuroki, Morifumi
  • Sasaki, Makoto
  • Nakajima, Shin

Abstract

Provided is an Fe-based amorphous alloy ribbon having reduced core loss under conditions of a magnetic flux density of 1.45 T. One embodiment of the present disclosure is an Fe-based amorphous alloy ribbon. At least one surface of this Fe-based amorphous alloy ribbon has multiple laser irradiation marks that are linear and consecutive. The linear laser irradiation marks are disposed along the direction perpendicular to the casting direction of the Fe-based amorphous alloy ribbon. The linear laser irradiation marks have surface irregularities and when the irregularities are evaluated in the casting direction, the difference HL between the highest point and the lowest point in the direction of thickness of the Fe-based amoprhous alloy ribbon is 0.25 to 2.0 µm.

IPC Classes  ?

  • H01F 1/153 - Amorphous metallic alloys, e.g. glassy metals
  • B22D 11/06 - Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
  • C22C 45/02 - Amorphous alloys with iron as the major constituent
  • H01F 27/245 - Magnetic cores made from sheets, e.g. grain-oriented
  • H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets

89.

FE-BASED AMORPHOUS ALLOY RIBBON, PRODUCTION METHOD THEREFOR, IRON CORE, AND TRANSFORMER

      
Application Number JP2020024911
Publication Number 2020/262494
Status In Force
Filing Date 2020-06-24
Publication Date 2020-12-30
Owner HITACHI METALS, LTD. (Japan)
Inventor
  • Itagaki, Hajime
  • Kuroki, Morifumi
  • Sasaki, Makoto
  • Nakajima, Shin

Abstract

Provided is an Fe-based amorphous alloy ribbon having reduced iron loss in magnetic flux density conditions of 1.45 T, little deformation, and high productivity. This Fe-based amorphous alloy ribbon has a first surface and a second surface. The Fe-based amorphous alloy ribbon has a plurality of continuous linear laser irradiation marks on at least the first surface. The linear laser irradiation marks are provided in a direction orthogonal to the casting direction of the Fe-based amorphous alloy ribbon. The linear laser irradiation marks have uneven surface and, when the unevenness is evaluated from the casting direction, the height difference HL × width WA is 6.0–180 µm2, as calculated from the height difference HL between the highest point and the lowest point in the thickness direction of the Fe-based amorphous alloy ribbon and the width WA, which is the length of the linear laser irradiation marks, in the casting direction, on the first surface.

IPC Classes  ?

  • H01F 1/153 - Amorphous metallic alloys, e.g. glassy metals
  • B22D 11/06 - Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
  • C22C 45/02 - Amorphous alloys with iron as the major constituent
  • H01F 27/245 - Magnetic cores made from sheets, e.g. grain-oriented
  • H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets

90.

COPPER COMPOSITE PLATE MATERIAL, VAPOR CHAMBER IN WHICH COPPER COMPOSITE PLATE MATERIAL IS USED, AND METHOD FOR MANUFACTURING VAPOR CHAMBER

      
Application Number JP2020022915
Publication Number 2020/255836
Status In Force
Filing Date 2020-06-10
Publication Date 2020-12-24
Owner HITACHI METALS, LTD. (Japan)
Inventor
  • Yagi, Noritomo
  • Tonogi, Tatsuya
  • Kodama, Kenji

Abstract

There is provided a copper composite plate material in which: one surface of a first copper layer is pressure-welded to a second copper layer; the first copper layer is configured from a precipitation-strengthened copper alloy; and the second copper layer is configured from pure copper in which the Cu content is 99.9 mass% or higher, or is configured from a non-precipitation-strengthened copper alloy in which the Si content is less than 0.1 mass%.

IPC Classes  ?

  • B23K 20/00 - Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
  • B23K 20/04 - Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by means of a rolling mill
  • C22C 9/06 - Alloys based on copper with nickel or cobalt as the next major constituent
  • C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
  • C22F 1/08 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon
  • B32B 15/01 - Layered products essentially comprising metal all layers being exclusively metallic
  • F28D 15/02 - Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls in which the medium condenses and evaporates, e.g. heat-pipes

91.

STEEL FOR HOT STAMP DIE, HOT STAMP DIE AND MANUFACTURING METHOD THEREOF

      
Application Number JP2020010562
Publication Number 2020/246099
Status In Force
Filing Date 2020-03-11
Publication Date 2020-12-10
Owner HITACHI METALS,LTD. (Japan)
Inventor
  • Hirashige Takayuki
  • Fukumoto Shiho

Abstract

A die steel which enables manufacturing a hot stamp die that has both high hardness and high thermal conductivity, a hot stamp die, and a manufacturing method thereof are provided. This steel for a hot stamp die has a component composition, in mass% of 0.45-0.65% C, 0.1-0.6% Si, 0.1-0.3% Mn, 2.5-6.0% Cr, 1.2-2.6% Mo, and 0.4-0.8% V, the remainder being Fe and unavoidable impurities. Further, this hot stamp die has the aforementioned component composition, and the manufacturing method is for manufacturing said hot stamp die.

IPC Classes  ?

  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 9/00 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C22C 38/24 - Ferrous alloys, e.g. steel alloys containing chromium with vanadium
  • C21D 1/06 - Surface hardening

92.

FE-AL-BASED ALLOY VIBRATION-DAMPING COMPONENT AND METHOD FOR MANUFACTURING SAME

      
Application Number JP2020020422
Publication Number 2020/241530
Status In Force
Filing Date 2020-05-22
Publication Date 2020-12-03
Owner HITACHI METALS,LTD. (Japan)
Inventor
  • Nishida Junichi
  • Kuwabara Kousuke

Abstract

The present invention provides: an Fe-Al-based vibration-damping component containing little solidification defects, exhibiting good vibration-damping performance even in the presence of remaining solidification defects, and having an irregular cross-sectional shape; and a method for manufacturing the vibration-damping component. The Fe-Al-based alloy vibration-damping component comprises 4.0-12.0% by mass of Al with the balance Fe and inevitable impurities, has an average crystal grain size in the range of over 700 µm to 2,000 µm, has a cross-sectional defect rate of lower than 0.1%, and has an irregular cross-sectional shape. In the Fe-Al-based alloy vibration-damping component and the method for manufacturing the vibration-damping component, the method is for obtaining the vibration-damping component having an irregular cross-sectional shape and includes a shaping step in which a metal powder comprising 4.0-12.0% by mass of Al with the balance Fe and inevitable impurities is melted using a heat source set to a scanning rate of 700-1,700 mm/second and is solidified to obtain a shaped product and an annealing step in which the shaped product is annealed at a temperature of 800-1200°C.

IPC Classes  ?

  • B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
  • B22F 3/16 - Both compacting and sintering in successive or repeated steps
  • B22F 3/24 - After-treatment of workpieces or articles
  • C21D 9/00 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • B33Y 10/00 - Processes of additive manufacturing
  • B33Y 80/00 - Products made by additive manufacturing

93.

PRODUCTION METHOD FOR ALLOY STRIP LAMINATE AND PRODUCTION APPARATUS FOR ALLOY STRIP LAMINATE

      
Application Number JP2020020158
Publication Number 2020/235642
Status In Force
Filing Date 2020-05-21
Publication Date 2020-11-26
Owner HITACHI METALS,LTD. (Japan)
Inventor Kuriyama, Yasuo

Abstract

The present invention provides a method for producing an alloy strip laminate, the method comprising: a step for forming cracks in an alloy strip by directly applying an external force to the alloy strip in a first laminate member comprising an adhesive layer and said alloy strip, to obtain a first laminate having the adhesive layer and the alloy strip having the cracks formed therein; a step for forming cracks in an alloy strip by directly applying an external force to the alloy strip in a second laminate member comprising an adhesive layer and said alloy strip, to obtain at least one second laminate having the adhesive layer and the alloy strip having the cracks formed therein; and a step for laminating said at least one second laminate on the first laminate so as to obtain an alloy strip laminate in which the adhesive layers and the alloy strips having the cracks formed therein are alternately laminated. The present invention also provides an apparatus for producing such an alloy strip laminate.

IPC Classes  ?

  • C21D 6/00 - Heat treatment of ferrous alloys
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets
  • H01F 1/153 - Amorphous metallic alloys, e.g. glassy metals

94.

PRODUCTION METHOD FOR NANOCRYSTALLINE ALLOY RIBBON HAVING RESIN FILM

      
Application Number JP2020020159
Publication Number 2020/235643
Status In Force
Filing Date 2020-05-21
Publication Date 2020-11-26
Owner HITACHI METALS,LTD. (Japan)
Inventor Kuriyama, Yasuo

Abstract

The present disclosure provides a production method that is for a nanocrystalline alloy ribbon having a resin film and that comprises a step for preparing a nanocrystallizable amorphous alloy ribbon, a step for performing a thermal treatment for nanocrystallization of the amorphous alloy ribbon with a tension exerted on the amorphous alloy ribbon, to obtain a nanocrystalline alloy ribbon, and a step for causing the nanocrystalline alloy ribbon to be held on the resin film with an adhesive layer therebetween.

IPC Classes  ?

  • C21D 6/00 - Heat treatment of ferrous alloys
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets
  • H01F 1/153 - Amorphous metallic alloys, e.g. glassy metals

95.

FORGING DEVICE, AND METHOD FOR MANUFACTURING FORGED PRODUCT

      
Application Number JP2020015155
Publication Number 2020/217916
Status In Force
Filing Date 2020-04-02
Publication Date 2020-10-29
Owner HITACHI METALS, LTD. (Japan)
Inventor
  • Takahashi, Shoichi
  • Matsui, Takanori
  • Fujita, Etsuo
  • Fukuyama, Takeshi
  • Suzuki, Shogo

Abstract

The objective of the present invention is to provide a forging device and a method for manufacturing a forged product in which a decrease in the temperature of a forging space and the temperature of forging stock is prevented, uniformity of the temperature of upper and lower dies is maintained efficiently, and forging operational efficiency is improved. In this forging device and method for manufacturing a forged product, upper and lower dies are heated by means of a heating mechanism inside a housing in a state in which an introduction port of an integrally formed housing main body is closed by a door, the upper and lower dies are moved relative to one another in the facing direction thereof, and the heating mechanism is moved relative to at least one of the upper and lower dies, which are moving relative to one another, in the facing direction thereof, thereby subjecting the forging stock to forging between the upper and lower dies. In addition, in the method for manufacturing a forged product, the forged product is manufactured from the forging stock.

IPC Classes  ?

  • B21J 1/06 - Heating or cooling methods or arrangements specially adapted for performing forging or pressing operations
  • B21J 5/00 - Methods for forging, hammering, or pressing; Special equipment or accessories therefor
  • B21J 13/02 - Dies or mountings therefor
  • B21K 29/00 - Arrangements for heating or cooling during processing

96.

Ni-BASED SUPER-HEAT-RESISTANT ALLOY AND METHOD FOR MANUFACTURING Ni-BASED SUPER-HEAT-RESISTANT ALLOY

      
Application Number JP2020012980
Publication Number 2020/203460
Status In Force
Filing Date 2020-03-24
Publication Date 2020-10-08
Owner HITACHI METALS,LTD. (Japan)
Inventor
  • Aoki Chuya
  • Date Masayoshi
  • Ishida Toshiki

Abstract

Provided are a Ni-based super-heat-resistant alloy for stably obtaining high tensile strength and a method for manufacturing the same. Provided are: a Ni-based super-heat-resistant alloy that has a compositional makeup including, in mass%, not more than 0.10% of C, not more than 0.5% of Si, not more than 0.5% of Mn, not more than 0.05% of P, not more than 0.050% of S, not more than 45% of Fe, 14.0-22.0% of Cr, not more than 18.0% of Co, not more than 8.0% of Mo, not more than 5.0% of W, 0.10-2.80% of Al, 0.50-5.50% of Ti, not more than 5.8% of Nb, not more than 2.0% of Ta, not more than 1.0% of V, not more than 0.030% of B, not more than 0.10% of Zr, and not more than 0.005% of Mg, the balance being Ni and unavoidable impurities, and that has a grain orientation spread (GOS) of not less than 0.7°, the GOS being an intra-grain misorientation parameter measured by the SEM-EBSD method; and a method for manufacturing the Ni-based super-heat-resistant alloy.

IPC Classes  ?

  • C22C 19/05 - Alloys based on nickel or cobalt based on nickel with chromium
  • C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
  • C22F 1/10 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon

97.

RETAINER AND PIPE JOINT USING SAME

      
Application Number JP2020014035
Publication Number 2020/203778
Status In Force
Filing Date 2020-03-27
Publication Date 2020-10-08
Owner HITACHI METALS, LTD. (Japan)
Inventor Sakata Shindo

Abstract

Provided is a retainer (102) that enables the length of a flexible pipe (200) in an insertion direction to be reduced, and that is able to engage the flexible pipe without requiring operation of another member. This retainer is an annular retainer used in a pipe joint, and comprises a plurality of hook parts (102n, 102nB) for entering a valley portion of a corrugated pipe of a flexible pipe inserted into a pipe joint, a plurality of support parts (102s, 102sB) which are for contacting an inner surface of a pipe joint main body accommodating the retainer in the pipe joint, and which are connected to respective hook parts in the center axis direction of the circle of the retainer, and a connecting part (102c, 102cB) connecting the plurality of pairings of the hook parts and support parts connected to each other. The connecting part is provided so as to undergo elastic deformation more readily than the hook parts and the support parts.

IPC Classes  ?

  • F16L 37/12 - Couplings of the quick-acting type in which the connection between abutting or axially-overlapping ends is maintained by locking members using hooks, pawls, or other movable or insertable locking members
  • F16L 33/00 - Arrangements for connecting hoses to rigid members; Rigid hose-connectors, i.e. single members engaging both hoses
  • F16L 33/26 - Arrangements for connecting hoses to rigid members; Rigid hose-connectors, i.e. single members engaging both hoses specially adapted for hoses made of metal

98.

V ALLOY TARGET

      
Application Number JP2020008600
Publication Number 2020/195565
Status In Force
Filing Date 2020-03-02
Publication Date 2020-10-01
Owner HITACHI METALS,LTD. (Japan)
Inventor
  • Sogame Hiroaki
  • Fukuoka Jun

Abstract

Provided is a novel V alloy target in which, during machining of the target, unevenness in the target surface can be reduced, abnormal electrical discharge during film formation can be reduced, and a reduction in droplet adhesion on a material to be treated can also be achieved. This V alloy target is formed of V and Mo, has an average Vickers hardness value of 250-350 HV on the erosion surface thereof, and has a variation in Vickers hardness, measured at five measurement points, of no more than 20%, the Vickers hardness preferably being in the range of 270-340 HV and the V alloy target more preferably containing 10-50 at% of Mo and comprising V and unavoidable impurities as the remainder thereof.

IPC Classes  ?

  • C23C 14/24 - Vacuum evaporation
  • B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
  • C22C 1/04 - Making non-ferrous alloys by powder metallurgy
  • C22C 27/02 - Alloys based on vanadium, niobium or tantalum
  • C22C 27/04 - Alloys based on tungsten or molybdenum

99.

V ALLOY TARGET

      
Application Number JP2020008603
Publication Number 2020/195566
Status In Force
Filing Date 2020-03-02
Publication Date 2020-10-01
Owner HITACHI METALS,LTD. (Japan)
Inventor
  • Sogame Hiroaki
  • Fukuoka Jun

Abstract

Provided is a novel V alloy target, wherein the occurrence of irregularities on the surface of the target can be suppressed during the machining of the target, and the deposition of droplets on workpieces can be suppressed while the occurrence of abnormal discharge is suppressed during film formation. The V alloy target is composed of V and W, wherein the average value of Vickers hardness on an erosion surface is in the range of 340-750 HV, and the variation in Vickers hardness measured at 5 measurement points is 20% or less. Preferably, the V alloy target has a Vickers hardness in the range of 350-710 HV, and more preferably contains 10-50 at% of W with the remainder comprising V and inevitable impurities.

IPC Classes  ?

  • C23C 14/24 - Vacuum evaporation
  • B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
  • C22C 1/04 - Making non-ferrous alloys by powder metallurgy
  • C22C 27/02 - Alloys based on vanadium, niobium or tantalum
  • C22C 27/04 - Alloys based on tungsten or molybdenum

100.

WELDED PIPE MANUFACTURING METHOD, AND WELDED PIPE MANUFACTURING DEVICE

      
Application Number JP2020013392
Publication Number 2020/196646
Status In Force
Filing Date 2020-03-25
Publication Date 2020-10-01
Owner HITACHI METALS, LTD. (Japan)
Inventor
  • Yamane, Hironori
  • Yokawa, Takahiro
  • Sasaki, Makoto

Abstract

In this method for manufacturing a welded pipe by bending a stainless steel strip having a thickness of 0.15 mm or more and 0.45 mm or less while conveying the stainless steel strip in one direction, to form a pipe, and welding abutting portions of the formed pipe by irradiating the same with a laser beam while applying compressive stress thereto by means of a set of squeeze rollers: the laser beam irradiation position is on the upstream side, in the pipe conveying direction, of the position of an axis of rotation of the squeeze rollers; the size of the spot diameter of the laser beam at the laser beam irradiation position is at least equal to 0.60 mm and at most equal to 1.2 mm; and an inert gas is blown from a gas nozzle onto the abutting portions irradiated by the laser beam.

IPC Classes  ?

  • B23K 26/262 - Seam welding of rectilinear seams of longitudinal seams of tubes
  • B21C 37/08 - Making tubes with welded or soldered seams
  • B23K 26/08 - Devices involving relative movement between laser beam and workpiece
  • B23K 26/21 - Bonding by welding
  • B23K 26/60 - Preliminary treatment
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