Riso Kagaku Corporation

Japan

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IPC Class
B41J 29/38 - Drives, motors, controls, or automatic cut-off devices for the entire printing mechanism 82
B41J 2/175 - Ink supply systems 58
B41J 2/01 - Ink jet 50
C09D 11/322 - Pigment inks 44
B41J 2/21 - Ink jet for multi-colour printing 41
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1.

METHOD FOR PRODUCING PRINTED TEXTILE ITEM

      
Application Number 18480197
Status Pending
Filing Date 2023-10-03
First Publication Date 2024-04-18
Owner RISO KAGAKU CORPORATION (Japan)
Inventor
  • Hayashi, Akiko
  • Shimura, Shinichiro
  • Kinoe, Kokoro
  • Shiraishi, Tetsuya

Abstract

Disclosed is a method for producing a printed textile item including: applying a pretreatment liquid to a fabric, and applying a white ink using an inkjet method to the fabric to which the pretreatment liquid has been applied, wherein the pretreatment liquid contains a polyvalent metal salt, a surfactant, and water, and the white ink contains a white inorganic pigment, resin particles, a surfactant, and water.

IPC Classes  ?

  • D06P 1/52 - General processes of dyeing or printing textiles or general processes of dyeing leather, furs or solid macromolecular substances in any form, classified according to the dyes, pigments or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing synthetic macromolecular substances

2.

METHOD AND APPARATUS FOR PRODUCING TRANSFER MEDIUM

      
Application Number 18369268
Status Pending
Filing Date 2023-09-18
First Publication Date 2024-04-11
Owner RISO KAGAKU CORPORATION (Japan)
Inventor
  • Takeuchi, Hiroyuki
  • Fukuda, Mamoru

Abstract

A transfer medium producing apparatus is equipped with an ink ejection unit 20 that ejects ink onto a peelable sheet, an adhesive solution application unit 30 that applies an adhesive solution onto the peelable sheet onto which the ink has been ejected, and a control unit 2 that controls the ejection of ink and the application of the adhesive solution to be performed by a wet on wet method.

IPC Classes  ?

  • B41F 16/00 - Transfer printing apparatus
  • B41F 16/02 - Transfer printing apparatus for textile material
  • B41F 19/00 - Apparatus or machines for carrying out printing operations combined with other operations
  • B41F 33/16 - Programming systems for automatic control of sequence of operations

3.

INK SET

      
Application Number 18474625
Status Pending
Filing Date 2023-09-26
First Publication Date 2024-04-04
Owner RISO KAGAKU CORPORATION (Japan)
Inventor
  • Shinotsuka, Ryo
  • Matsuda, Takumi

Abstract

Disclosed is an ink set including: an inkjet pretreatment liquid containing an aggregating agent; an inkjet ink; and a cleaning liquid that contains water, a water-soluble organic solvent, a surfactant with an HLB value of 10 or more, and a metal salt A, and has a conductivity of 0.10 to 3.0 mS/cm at 5° C. A method for producing a printed textile item is also disclosed.

IPC Classes  ?

  • C09D 11/40 - Ink-sets specially adapted for multi-colour inkjet printing
  • C09D 7/00 - Features of coating compositions, not provided for in group ; Processes for incorporating ingredients in coating compositions
  • C09D 11/54 - Inks based on two liquids, one liquid being the ink, the other liquid being a reaction solution, a fixer or a treatment solution for the ink

4.

DROPLET EJECTION CONTROL APPARATUS

      
Application Number 18369263
Status Pending
Filing Date 2023-09-18
First Publication Date 2024-04-04
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Miyachi, Ryosuke

Abstract

A droplet ejection control apparatus includes a head unit in which a plurality of vertically arranged nozzle groups in which a plurality of nozzles for ejecting droplets onto a predetermined target of ejection are arranged in the vertical direction; and a control unit for controlling ejection of the droplets from the nozzles. The control unit controls ejection of the droplets for vertically adjacent nozzle groups such that an amount of ejection from at least one nozzle of a vertically upper nozzle group at a joint portion between nozzle groups is reduced, and an amount of ejection from at least one nozzle at the joint portion between the nozzle groups of a vertically lower nozzle group is increased.

IPC Classes  ?

  • B41J 2/045 - Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
  • B41J 2/155 - Arrangement thereof for line printing

5.

AQUEOUS INK FOR TEXTILE INKJET PRINTING AND METHOD FOR PRODUCING PRINTED TEXTILE ITEM

      
Application Number 18474623
Status Pending
Filing Date 2023-09-26
First Publication Date 2024-04-04
Owner RISO KAGAKU CORPORATION (Japan)
Inventor
  • Hayashi, Akiko
  • Shiraishi, Tetsuya

Abstract

Provided is an aqueous ink for textile inkjet printing including a pigment, a binder resin, and water, wherein the binder resin contains a water-dispersible (meth)acrylic resin, a water-dispersible urethane resin, and a water-dispersible polyester resin, and a mass ratio of the water-dispersible polyester resin relative to the water-dispersible urethane resin is at least 0.2. A method for producing a printed textile item is also provided.

IPC Classes  ?

6.

INKJET PRINTER

      
Application Number 18240011
Status Pending
Filing Date 2023-08-30
First Publication Date 2024-03-28
Owner RISO KAGAKU CORPORATION (Japan)
Inventor
  • Nishikawa, Ryosuke
  • Higuchi, Takeshi

Abstract

An inkjet printer includes: an inkjet head configured to eject ink to a print medium being conveyed; a mist collector including at least a suction port configured to suck air from a side of the inkjet head on which the print medium passes; and a controller configured to control the mist collector. A space on the side of the inkjet head on which the print medium passes is an open space in which nothing but the print medium passing is arranged within a prescribed distance from the inkjet head. The controller is configured to control the mist collector to perform a mist collection operation of sucking air containing ink mist via the suction port in a state where the print medium and the inkjet head are facing each other.

IPC Classes  ?

  • B41J 2/17 - Ink jet characterised by ink handling
  • B41J 2/175 - Ink supply systems
  • B41J 11/00 - Devices or arrangements for supporting or handling copy material in sheet or web form

7.

LIQUID SUPPLY APPARATUS

      
Application Number 18218770
Status Pending
Filing Date 2023-07-06
First Publication Date 2024-03-21
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Nishikawa, Ryosuke

Abstract

A liquid supply apparatus includes: a liquid container; branch paths branching from a path connected to the liquid container, the branch paths being connected to tanks arranged at height positions different from one another and lower than the liquid container; supply valves arranged in the branch paths respectively; and a controller configured to control the supply valves to supply a liquid from the liquid container to each of the tanks. The controller is configured to control the supply valves to temporally separately perform supply of the liquid to tanks of the tanks having a height difference equal to or more than a prescribed value therebetween.

IPC Classes  ?

  • B41J 2/175 - Ink supply systems
  • B41J 2/045 - Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers

8.

INKJET PRINTER

      
Application Number 18229845
Status Pending
Filing Date 2023-08-03
First Publication Date 2024-03-07
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Shimomura, Kenji

Abstract

An inkjet printer includes nozzle arrays and a controller. Each of the nozzle arrays includes nozzles arranged in a row along a nozzle array direction. The nozzle arrays are arranged in parallel with each other in a direction perpendicular to the nozzle array direction. The controller is configured to perform such control that in a case where the nozzle arrays include a first nozzle array including a non-ejection nozzle, a defect in a printed image due to the non-ejection nozzle is interpolated by using ejection of an ink by a first nozzle and at least one second nozzle in a second nozzle array different from the first nozzle array among the nozzle arrays, the first nozzle being at a position corresponding to a pixel onto which the non-ejection nozzle is intended to eject an ink, the at least one second nozzle being adjacent to the first nozzle.

IPC Classes  ?

  • B41J 2/045 - Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers

9.

METHOD FOR PRODUCING TRANSFER SHEET, AND AQUEOUS ADHESIVE LIQUID

      
Application Number 18359769
Status Pending
Filing Date 2023-07-26
First Publication Date 2024-02-08
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Watanabe, Yoshifumi

Abstract

A method for producing a transfer sheet is provided that yields excellent fastness properties in the transferred product for the image transferred from the transfer sheet. The method for producing a transfer sheet includes: forming an image by jetting an aqueous ink by an inkjet method onto a releasable support, and jetting an aqueous adhesive liquid by an inkjet method so as to at least partially overlap the image, wherein the aqueous adhesive liquid contains a resin A, and a resin B having a glass transition temperature that is at least 80° C. higher than that of the resin A.

IPC Classes  ?

  • B41M 5/00 - Duplicating or marking methods; Sheet materials for use therein
  • B41M 3/12 - Transfer pictures or the like, e.g. decalcomanias
  • B41M 7/00 - After-treatment of printed works, e.g. heating, irradiating

10.

METHOD FOR PRODUCING TRANSFER SHEET, AQUEOUS ADHESIVE LIQUID, AND METHOD FOR PRODUCING TRANSFERRED PRODUCT

      
Application Number 18359773
Status Pending
Filing Date 2023-07-26
First Publication Date 2024-02-01
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Watanabe, Yoshifumi

Abstract

A method for producing a transfer sheet is provided that yields excellent fastness properties for the image transferred from the transfer sheet to the transferred product. The method for producing a transfer sheet includes: forming an image by jetting an aqueous ink by an inkjet method onto a releasable support, and jetting an aqueous adhesive liquid by an inkjet method so as to at least partially overlap the image, wherein the aqueous adhesive liquid contains a resin and a crosslinking agent, and the resin exhibits reactivity relative to the crosslinking agent.

IPC Classes  ?

  • B32B 7/06 - Interconnection of layers permitting easy separation
  • C09J 133/10 - Homopolymers or copolymers of methacrylic acid esters
  • C09J 175/04 - Polyurethanes
  • C09J 11/06 - Non-macromolecular additives organic
  • B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties

11.

INK SET FOR TEXTILE PRINTING AND METHOD FOR PRODUCING PRINTED TEXTILE ITEM

      
Application Number 18349342
Status Pending
Filing Date 2023-07-10
First Publication Date 2024-01-18
Owner RISO KAGAKU CORPORATION (Japan)
Inventor
  • Hayashi, Akiko
  • Shiraishi, Tetsuya
  • Yamazaki, Takahisa
  • Shinotsuka, Ryo
  • Matsuda, Takumi
  • Kinoe, Kokoro

Abstract

Disclosed is an ink set for textile printing including: a pretreatment liquid that contains a polyvalent metal salt, a water-soluble organic solvent, and a surfactant; a white inkjet ink that contains a white pigment, resin particles, and a water-soluble organic solvent; and a non-white inkjet ink that contains a non-white pigment, resin particles, a water-soluble organic solvent, and a surfactant. Also disclosed is a method for producing a printed textile item.

IPC Classes  ?

  • C09D 11/40 - Ink-sets specially adapted for multi-colour inkjet printing
  • C09D 11/54 - Inks based on two liquids, one liquid being the ink, the other liquid being a reaction solution, a fixer or a treatment solution for the ink
  • C09D 11/322 - Pigment inks
  • C09D 11/38 - Inkjet printing inks characterised by non-macromolecular additives other than solvents, pigments or dyes
  • C09D 11/023 - Emulsion inks
  • C09D 11/037 - Printing inks characterised by features other than the chemical nature of the binder characterised by the pigment
  • C09D 11/102 - Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
  • C09D 11/107 - Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from unsaturated acids or derivatives thereof
  • D06P 5/30 - Ink jet printing
  • D06P 5/00 - Other features in dyeing or printing textiles or dyeing leather, furs or solid macromolecular substances in any form
  • D06P 1/92 - General processes of dyeing or printing textiles or general processes of dyeing leather, furs or solid macromolecular substances in any form, classified according to the dyes, pigments or auxiliary substances employed using dyes dissolved in organic solvents or aqueous emulsions thereof in organic solvents
  • D06P 1/52 - General processes of dyeing or printing textiles or general processes of dyeing leather, furs or solid macromolecular substances in any form, classified according to the dyes, pigments or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing synthetic macromolecular substances
  • B41J 3/407 - Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material

12.

AQUEOUS PIGMENT INK FOR TEXTILE INKJET PRINTING, AND METHOD FOR PRODUCING PRINTED TEXTILE ITEM

      
Application Number 18336602
Status Pending
Filing Date 2023-06-16
First Publication Date 2023-12-28
Owner RISO KAGAKU CORPORATION (Japan)
Inventor
  • Yamazaki, Takahisa
  • Ito, Masanori
  • Koyama, Takeshi

Abstract

Provided is an aqueous pigment ink for textile inkjet printing, including a pigment, a water-dispersible resin, water, and a water-soluble organic solvent, wherein an ink film made by drying the aqueous pigment ink for textile inkjet printing has a weight change ratio of 20% or less between before and after immersion in warm water at 50° C., and has a film elongation of 50% to 300% after immersion in warm water at 50° C. Also provided is a method for producing a printed textile item.

IPC Classes  ?

  • C09D 11/322 - Pigment inks
  • C09D 11/037 - Printing inks characterised by features other than the chemical nature of the binder characterised by the pigment
  • C09D 11/033 - Printing inks characterised by features other than the chemical nature of the binder characterised by the solvent
  • D06P 5/30 - Ink jet printing
  • B41J 3/407 - Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material

13.

INKJET PRINTER, FLOW PATH RESISTANCE ADJUSTMENT METHOD, AND PRINTING METHOD

      
Application Number 18120495
Status Pending
Filing Date 2023-03-13
First Publication Date 2023-11-09
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Miyachi, Ryosuke

Abstract

An inkjet printer includes: an inkjet head having a nozzle row in which nozzles configured to eject ink are arranged, the inkjet head being configured to perform printing by ejecting ink from the nozzles in a state where a row direction of the nozzles in the nozzle row is a non-horizontal direction; an ink tank configured to receive a pressure for delivering ink to the inkjet head or for recovering ink from the inkjet head; and an ink path connecting the ink tank with the inkjet head. The printing is performed in a state where a parameter related to a flow path resistance of the ink path is set such that a nozzle pressure of each of the nozzles at a time of printing is within a prescribed range enabling ink to be stably ejected and ink flows at a flow rate required for the inkjet head.

IPC Classes  ?

14.

MEDIUM FEEDING DEVICE

      
Application Number 18118204
Status Pending
Filing Date 2023-03-07
First Publication Date 2023-10-05
Owner RISO KAGAKU CORPORATION (Japan)
Inventor
  • Shibata, Ryuichi
  • Noguchi, Yoshifumi
  • Hara, Masashi

Abstract

A medium feeding device includes a feeder that feeds a medium, a medium detection sensor that detects the medium fed by the feeder, and a processor that changes feed settings of the feeder based on a detection result of the medium detection sensor, wherein the processor switches a feed setting to be changed among a plurality of the feed settings of the feeder based on the detection result of the medium detection sensor.

IPC Classes  ?

  • B65H 7/06 - Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors responsive to presence of faulty articles or incorrect separation or feed

15.

INK SET

      
Application Number 18184115
Status Pending
Filing Date 2023-03-15
First Publication Date 2023-09-28
Owner RISO KAGAKU CORPORATION (Japan)
Inventor
  • Shinotsuka, Ryo
  • Matsuda, Takumi
  • Urano, Yuki
  • Shiraishi, Tetsuya

Abstract

Provided is an ink set including: an inkjet aqueous pretreatment liquid containing water and a polyvalent metal salt A; an aqueous inkjet ink; and a cleaning liquid containing water, a water-soluble organic solvent B with an SP value of at least 11 (cal/cm3)1/2, and a monovalent metal salt C, in which the monovalent metal salt C contains a metal with a higher ionization tendency than a metal of the polyvalent metal salt A.

IPC Classes  ?

  • C09D 11/54 - Inks based on two liquids, one liquid being the ink, the other liquid being a reaction solution, a fixer or a treatment solution for the ink
  • C09D 11/38 - Inkjet printing inks characterised by non-macromolecular additives other than solvents, pigments or dyes
  • C09D 11/322 - Pigment inks
  • C09D 11/023 - Emulsion inks
  • C09D 11/102 - Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds

16.

AQUEOUS WHITE INKJET INK AND METHOD FOR PRODUCING PRINTED TEXTILE ITEM

      
Application Number 18187105
Status Pending
Filing Date 2023-03-21
First Publication Date 2023-09-28
Owner RISO KAGAKU CORPORATION (Japan)
Inventor
  • Matsuda, Takumi
  • Shiraishi, Tetsuya
  • Shinotsuka, Ryo
  • Hayashi, Akiko
  • Kinoe, Kokoro

Abstract

Provided is an aqueous white inkjet ink including: a white pigment; a water-dispersible urethane resin; an amine compound with a molecular weight of 110 to 150; and water, in which an amount of the amine compound with a molecular weight of 110 to 150 relative to a total amount of the ink is 0.2 to 1.3% by mass, and a mass ratio of the amine compound with a molecular weight of 110 to 150 relative to the water-dispersible urethane resin satisfies (a mass of the amine compound with a molecular weight of 110 to 150)/(a mass of the water-dispersible urethane resin)=0.02 to 0.08.

IPC Classes  ?

  • C09D 11/38 - Inkjet printing inks characterised by non-macromolecular additives other than solvents, pigments or dyes
  • C09D 11/322 - Pigment inks
  • C09D 11/102 - Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
  • C09D 11/037 - Printing inks characterised by features other than the chemical nature of the binder characterised by the pigment

17.

AQUEOUS INKJET INK FOR TEXTILE PRINTING AND METHOD FOR PRODUCING PRINTED TEXTILE ITEM

      
Application Number 18187106
Status Pending
Filing Date 2023-03-21
First Publication Date 2023-09-28
Owner RISO KAGAKU CORPORATION (Japan)
Inventor
  • Shiraishi, Tetsuya
  • Hayashi, Akiko
  • Kinoe, Kokoro

Abstract

An aqueous inkjet ink for textile printing is disclosed which contains water, a water-soluble organic solvent, an amino alcohol, a water-dispersible resin, and a pigment, and in which an amount of a solid fraction of the ink relative to a total mass of the ink is at least 20% by mass; and the water-soluble organic solvent contains a water-soluble organic solvent (A) which has a boiling point of at least 250° C. and is one or more compounds selected from the group consisting of polyalkylene glycols, polyalkylene glycol derivatives, and trihydric alcohols. A method for producing a printed textile item is also disclosed.

IPC Classes  ?

18.

CONVEYING DEVICE

      
Application Number 18118198
Status Pending
Filing Date 2023-03-07
First Publication Date 2023-09-21
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Hosoe, Yuki

Abstract

A conveying device which is disposed so as to face an image forming unit that performs image formation on a medium and which conveys the medium while sucking the medium, the conveying device including: a conveying surface having a suction region that sucks the medium, wherein the suction region includes a first suction region including a region that faces an entirety of the image forming unit along a conveying direction of the medium, and a second suction region located on an upstream side of the first suction region in a conveying direction, the second suction region sucking the medium with a stronger sucking force than the first suction region.

IPC Classes  ?

  • B41J 13/08 - Bands or like feeding devices
  • B41J 13/10 - Sheet holders, retainers, or stationary guides

19.

APPARATUS FOR PRODUCING TRANSFER MEDIUM AND TRANSFER MEDIUM

      
Application Number 18118950
Status Pending
Filing Date 2023-03-08
First Publication Date 2023-09-21
Owner RISO KAGAKU CORPORATION (Japan)
Inventor
  • Fukuda, Mamoru
  • Naramoto, Shoji

Abstract

An apparatus for producing a transfer medium is equipped with: a printing unit that receives image data that represents an image to be printed and prints a print image onto a peelable sheet based on the image data; an adhesive liquid coating unit that coats an adhesive liquid on the peelable sheet on which the print image has been printed; and a control unit that controls the adhesive liquid coating unit such that an adhesive liquid is coated onto a printed image within a transfer region, from between the transfer region to be transferred onto a target medium for transfer and a non-transfer region not to be transferred onto the target medium for transfer, which are included in the printed image.

IPC Classes  ?

  • B44C 1/17 - Dry transfer
  • B41M 3/12 - Transfer pictures or the like, e.g. decalcomanias
  • B41M 5/025 - Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet

20.

WHITE INKJET INK FOR TEXTILE PRINTING, INK SET, AND METHOD FOR PRODUCING PRINTED TEXTILE ITEM

      
Application Number 18179653
Status Pending
Filing Date 2023-03-07
First Publication Date 2023-09-21
Owner RISO KAGAKU CORPORATION (Japan)
Inventor
  • Hayashi, Akiko
  • Kinoe, Kokoro
  • Shimura, Shinichiro
  • Shiraishi, Tetsuya
  • Urano, Yuki

Abstract

Provided is a white inkjet ink for textile printing including: a white inorganic pigment, resin particles A, resin particles B, and water, in which a film elongation of the resin particles A is at least 1000%, the resin particles B are ionic resin particles with an average particle size of not more than 150 nm, and an average particle size of the resin particles A is twice or more than the average particle size of the resin particles B. An ink set and a method for producing a printed textile item are also provided.

IPC Classes  ?

  • C09D 11/322 - Pigment inks
  • C09D 11/38 - Inkjet printing inks characterised by non-macromolecular additives other than solvents, pigments or dyes
  • C09D 11/033 - Printing inks characterised by features other than the chemical nature of the binder characterised by the solvent
  • C09D 11/037 - Printing inks characterised by features other than the chemical nature of the binder characterised by the pigment
  • C09D 11/102 - Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
  • C09D 11/40 - Ink-sets specially adapted for multi-colour inkjet printing
  • C09D 11/54 - Inks based on two liquids, one liquid being the ink, the other liquid being a reaction solution, a fixer or a treatment solution for the ink
  • D06P 5/30 - Ink jet printing
  • D06P 5/00 - Other features in dyeing or printing textiles or dyeing leather, furs or solid macromolecular substances in any form
  • D06P 1/52 - General processes of dyeing or printing textiles or general processes of dyeing leather, furs or solid macromolecular substances in any form, classified according to the dyes, pigments or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing synthetic macromolecular substances
  • D06P 1/673 - Inorganic compounds
  • B41M 5/00 - Duplicating or marking methods; Sheet materials for use therein
  • B41J 2/21 - Ink jet for multi-colour printing
  • B41J 3/407 - Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material

21.

PRINTING APPARATUS AND METHOD

      
Application Number 18102988
Status Pending
Filing Date 2023-01-30
First Publication Date 2023-08-17
Owner RISO KAGAKU CORPORATION (Japan)
Inventor
  • Takakusa, Tadashi
  • Naramoto, Shoji

Abstract

A printing apparatus includes: a gloss forming unit that forms at least two regions having different gloss levels on a print medium; and a print image forming unit that forms a print image on the at least two regions having different gloss levels of the print medium after the gloss forming unit forms the at least two regions.

IPC Classes  ?

  • B41M 7/00 - After-treatment of printed works, e.g. heating, irradiating
  • B41J 11/00 - Devices or arrangements for supporting or handling copy material in sheet or web form

22.

METHOD FOR PRODUCING PRINTED TEXTILE ITEM

      
Application Number 18059875
Status Pending
Filing Date 2022-11-29
First Publication Date 2023-06-29
Owner RISO KAGAKU CORPORATION (Japan)
Inventor
  • Kinoe, Kokoro
  • Hayashi, Akiko
  • Shiraishi, Tetsuya
  • Koyama, Takeshi
  • Ozawa, Shinsuke

Abstract

A method for producing a printed textile item, the method including applying a treatment liquid containing an aggregating agent to a fabric using an inkjet method, applying a white ink having a charge density of at least 30 μeq/g, using a step of using an inkjet method and a wet-on-wet method, to the fabric to which the treatment liquid has been applied, applying a color ink for which the Young's modulus of the dried coating film is not more than 3.0 MPa, using an inkjet method and a wet-on-wet method, to the fabric to which the white ink has been applied.

IPC Classes  ?

23.

PRINTING APPARATUS

      
Application Number 17965302
Status Pending
Filing Date 2022-10-13
First Publication Date 2023-04-27
Owner RISO KAGAKU CORPORATION (Japan)
Inventor
  • Hanamoto, Yoshihiro
  • Yabune, Hirokazu
  • Hara, Masashi

Abstract

A printing apparatus includes: a printing section; a print conveyor conveying a medium in the printing section; a constant-speed conveyor conveying the medium at a variable constant conveying speed in a circulation route for duplex printing; a registration roller pair against which the medium to be conveyed to the printing section is caused to abut; and a processor determining a conveyance schedule for the medium based on at least one of a first conveyance route length between a downstream end portion in a conveying direction of the print conveyor and an upstream end portion in the conveying direction of the constant-speed conveyor and a second conveyance route length between a downstream end portion in the conveying direction of the constant-speed conveyor and the registration roller pair, and a medium length in the conveying direction of the medium.

IPC Classes  ?

  • B65H 83/02 - Combinations of piling and depiling operations, e.g. performed simultaneously, of interest apart from the single operation of piling or depiling performed on the same pile
  • B41J 29/38 - Drives, motors, controls, or automatic cut-off devices for the entire printing mechanism
  • B41J 11/42 - Controlling
  • B41J 13/08 - Bands or like feeding devices
  • B65H 5/00 - Feeding articles separated from piles; Feeding articles to machines
  • B65H 5/26 - Duplicate, alternate, selective, or coacting feeds
  • B65H 7/20 - Controlling associated apparatus
  • B65H 31/24 - Pile receivers multiple or compartmented, e.g. for alternate, programmed, or selective filling

24.

TREATMENT LIQUID, INKJET INK SET, AND METHOD FOR PRODUCING PRINTED MATTER

      
Application Number 17860272
Status Pending
Filing Date 2022-07-08
First Publication Date 2023-04-06
Owner RISO KAGAKU CORPORATION (Japan)
Inventor
  • Urano, Yuki
  • Ito, Masanori
  • Shinotsuka, Ryo

Abstract

A treatment liquid which is applied to a substrate by an inkjet system, and includes water, a coagulant, and a surfactant, in which the coagulant contains a polycondensate of an aliphatic amine and an epihalohydrin, and a diallyldialkylammonium halide-based polymer, at a mass ratio of 20:80 to 90:10, and the surfactant contains a fluorine-based surfactant and a silicone-based surfactant.

IPC Classes  ?

  • C09D 11/38 - Inkjet printing inks characterised by non-macromolecular additives other than solvents, pigments or dyes
  • B41M 5/00 - Duplicating or marking methods; Sheet materials for use therein

25.

ELECTRONIC APPARATUS

      
Application Number 17858448
Status Pending
Filing Date 2022-07-06
First Publication Date 2023-03-30
Owner RISO KAGAKU CORPORATION (Japan)
Inventor
  • Inoue, Hideaki
  • Nagata, Seiichiro
  • Abe, Takahiro

Abstract

An electronic apparatus includes: a chassis formed of a conductive member and including an opening; a radiation source arranged in the chassis and radiating noise electric waves; and a conductor formed of a conductive member and arranged on a same side of the radiation source as the opening with at least a part of the conductor overlapping the opening in a plan view of the opening. The conductor has one end electrically connected to the chassis and the other end as an electrically open end.

IPC Classes  ?

  • B41J 2/44 - Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using single radiation source, e.g. lighting beams or shutter arrangements
  • H05K 9/00 - Screening of apparatus or components against electric or magnetic fields
  • H05K 7/04 - Arrangements of circuit components or wiring on supporting structure on conductive chassis

26.

Method for producing printed textile item

      
Application Number 17828319
Grant Number 11781268
Status In Force
Filing Date 2022-05-31
First Publication Date 2022-12-29
Grant Date 2023-10-10
Owner RISO KAGAKU CORPORATION (Japan)
Inventor
  • Shiraishi, Tetsuya
  • Hayashi, Akiko
  • Kinoe, Kokoro
  • Yamazaki, Takahisa
  • Shinotsuka, Ryo
  • Matsuda, Takumi

Abstract

A method for producing a printed textile item is disclosed, the method including applying a pretreatment liquid containing a coagulant, water and a surfactant to a fabric, and, after the application of the pretreatment liquid, applying a white ink containing a white pigment and water to the fabric by an inkjet method, wherein a surface tension of the white ink at 0.05 Hz is within a range from 33 to 39 mN/m, a surface tension of the white ink at 10 Hz is 40 mN/m or greater, a specific gravity of the pretreatment liquid is greater than a specific gravity of the white ink, and the application of the white ink is performed within 100 seconds from the application of the pretreatment liquid and by a wet-on-wet method.

IPC Classes  ?

  • D06P 5/00 - Other features in dyeing or printing textiles or dyeing leather, furs or solid macromolecular substances in any form
  • D06P 5/30 - Ink jet printing
  • B41M 5/00 - Duplicating or marking methods; Sheet materials for use therein
  • D06P 1/44 - General processes of dyeing or printing textiles or general processes of dyeing leather, furs or solid macromolecular substances in any form, classified according to the dyes, pigments or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
  • D06P 1/00 - General processes of dyeing or printing textiles or general processes of dyeing leather, furs or solid macromolecular substances in any form, classified according to the dyes, pigments or auxiliary substances employed
  • D06P 1/673 - Inorganic compounds

27.

METHOD AND APPARATUS FOR CONTROLLING INK EJECTION

      
Application Number 17837495
Status Pending
Filing Date 2022-06-10
First Publication Date 2022-12-29
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Yamazaki, Takahisa

Abstract

An inkjet printing apparatus includes: a first and a third head that ejects ink onto a print medium to form a printed image; a second head that coats the print medium with a treatment agent that contains a coagulant that coagulates ink; and a control unit that performs a two step ink ejection control process to control the first through third heads such that ink is ejected onto the print medium until a printing rate in a predetermined region of the print medium reaches a threshold value which is set in advance, coats the treatment agent thereafter, and then ejects ink according to a remaining printing rate after the treatment agent is coated.

IPC Classes  ?

  • B41J 11/00 - Devices or arrangements for supporting or handling copy material in sheet or web form
  • B41J 2/145 - Arrangement thereof

28.

CONVEYANCE DEVICE

      
Application Number 17684852
Status Pending
Filing Date 2022-03-02
First Publication Date 2022-09-15
Owner RISO KAGAKU CORPORATION (Japan)
Inventor
  • Miyachi, Ryosuke
  • Morita, Yoshihisa

Abstract

A conveyance device includes a conveyance path having a curved portion and a pair of conveyers which are disposed in the conveyance path and convey a medium while nipping it, wherein the medium enters the pair of conveyers in a state of being at least partially curved in the curved portion, and the conveyance path guides the medium toward one of the pair of conveyers.

IPC Classes  ?

  • B65H 9/04 - Fixed or adjustable stops or gauges
  • B65H 5/00 - Feeding articles separated from piles; Feeding articles to machines

29.

Printing system

      
Application Number 17684863
Grant Number 11850843
Status In Force
Filing Date 2022-03-02
First Publication Date 2022-09-15
Grant Date 2023-12-26
Owner RISO KAGAKU CORPORATION (Japan)
Inventor
  • Yamagata, Akihiro
  • Terakado, Ryo
  • Yabune, Hirokazu

Abstract

A printing system, including a first printing part, a second printing part that is disposed downstream of the first printing part in the conveying direction of a medium, and a conveyance mechanism that conveys the medium The conveyance mechanism includes a passage detection sensor, a conveyor roller, and a resist roller that is disposed downstream in the conveying direction from the passage detection sensor and the conveyor roller, that is butted by the medium, and that conveys the medium slackened due to the butting. The printing system further includes a controller configured to control the conveyor roller so that the slack amount of the subsequent medium is constant based on the conveyance status of the preceding medium and the detection time of the leading edge of the subsequent medium detected by the passage detection sensor.

IPC Classes  ?

  • B41J 11/00 - Devices or arrangements for supporting or handling copy material in sheet or web form
  • B41J 3/54 - Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed with two or more sets of type or printing elements
  • B41J 13/00 - Devices or arrangements specially adapted for supporting or handling copy material in short lengths, e.g. sheets

30.

Sheet discharger

      
Application Number 17587312
Grant Number 11878894
Status In Force
Filing Date 2022-01-28
First Publication Date 2022-08-18
Grant Date 2024-01-23
Owner RISO KAGAKU CORPORATION (Japan)
Inventor
  • Hara, Masashi
  • Noguchi, Yoshifumi
  • Okada, Yoshiyuki

Abstract

A sheet discharger includes: an accommodator configured to accommodate sheets; a conveyor configured to convey and discharge a sheet to the accommodator; a detector configured to detect whether a jam of a sheet has occurred in the accommodator and a state of the jam; and a controller configured to control the conveyor to continue sheet discharge upon detection by the detector of the jam in a state where sheet discharge of a jammed sheet is possible.

IPC Classes  ?

  • B65H 29/62 - Article switches or diverters diverting faulty articles from the main stream
  • B65H 43/04 - Use of control, checking, or safety devices, e.g. automatic devices comprising an element for sensing a variable detecting, or responding to, presence of faulty articles
  • G03G 15/00 - Apparatus for electrographic processes using a charge pattern
  • B65H 7/06 - Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors responsive to presence of faulty articles or incorrect separation or feed
  • B65H 29/58 - Article switches or diverters

31.

CONVEYING APPARATUS

      
Application Number 17587282
Status Pending
Filing Date 2022-01-28
First Publication Date 2022-08-18
Owner RISO KAGAKU CORPORATION (Japan)
Inventor
  • Hara, Masashi
  • Noguchi, Yoshifumi
  • Okada, Yoshiyuki

Abstract

A controller, upon occurrence of a sheet jam in a downstream conveyor, discharges a sheet in an upstream conveyor from a discharge port by controlling an operation of a switchback roller depending on an operation status of the switchback roller at a time of the occurrence of the sheet jam and then stops sheet conveyance by a conveyor.

IPC Classes  ?

  • B65H 29/62 - Article switches or diverters diverting faulty articles from the main stream
  • B65H 5/06 - Feeding articles separated from piles; Feeding articles to machines by rollers
  • B65H 7/06 - Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors responsive to presence of faulty articles or incorrect separation or feed

32.

Medium feeding mechanism

      
Application Number 17557587
Grant Number 11932511
Status In Force
Filing Date 2021-12-21
First Publication Date 2022-07-28
Grant Date 2024-03-19
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Iioka, Yuzuru

Abstract

A medium feeding mechanism includes: a feeder that feeds a medium; a transport path that is coupled to the feeder; a transporter that transports the medium through the transport path; a transport drive that drives the transporter; an entry detection sensor that detects when the medium fed from the feeder has entered the transport path; a take-in transporter that takes in the medium transported by the transporter; and a transport controller that controls the feeder and the take-in transporter, wherein when the entry detection sensor detects entry of the medium at a time that falls within a first range set in advance, the controller controls the take-in transporter so as to take in the medium, and when the entry detection sensor detects entry of the medium at a time that falls within a second range following the first range.

IPC Classes  ?

  • B65H 7/02 - Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors
  • B65H 1/04 - Supports or magazines for piles from which articles are to be separated adapted to support articles substantially horizontally, e.g. for separation from top of pile
  • B65H 3/08 - Separating articles from piles using pneumatic force
  • B65H 5/26 - Duplicate, alternate, selective, or coacting feeds
  • B65H 7/16 - Controlling air-supply to pneumatic separators
  • B65H 7/18 - Modifying or stopping actuation of separators
  • B65H 3/12 - Suction bands, belts, or tables moving relatively to the pile

33.

PAPER SUPPLY DEVICE

      
Application Number 17570072
Status Pending
Filing Date 2022-01-06
First Publication Date 2022-07-21
Owner RISO KAGAKU CORPORATION (Japan)
Inventor
  • Watari, Kyosuke
  • Terakado, Ryo
  • Hara, Masashi

Abstract

A paper supply device is equipped with a paper supply unit that sequentially supplies a plurality of print media, and a control unit that controls the paper supply unit. During sequential supply of a plurality of print media at a paper supply interval, in the case that it is necessary to secure a paper supply interval which is set in advance and is longer than the paper supply interval, a reference paper supply interval, based on a point in time which is a natural number multiple of the paper supply interval, and a post print process paper supply interval are compared. Print media are supplied at the post print process paper supply interval in the case that the post print process paper supply interval and the reference paper supply interval are different.

IPC Classes  ?

  • B65H 7/02 - Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors
  • B41J 11/42 - Controlling

34.

SHEET FEEDING APPARATUS

      
Application Number 17551802
Status Pending
Filing Date 2021-12-15
First Publication Date 2022-06-23
Owner RISO KAGAKU CORPORATION (Japan)
Inventor
  • Iioka, Yuzuru
  • Miyachi, Ryosuke

Abstract

A controller controls a floating unit and a conveyor to convey a sheet to a supply destination, and performs a following control of acquiring a detection value of a detector which detects an output signal acquired due to an input to a side of a sheet stack, during floating of sheets floated by the floating unit each time a sheet is conveyed by the conveyor and lifting a stacking tray upon the acquired detection value being less than a threshold value. The controller controls the floating unit and the conveyor to perform a feeding retry upon an occurrence of empty feeding in the conveyor, and determines the threshold value such that a target position for a height position of an upper surface of the sheet stack in the following control is a position where empty feeding is more likely to occur than multiple sheet feeding in the conveyor.

IPC Classes  ?

  • B65H 3/48 - Air blast acting on edges of, or under, articles
  • B65H 7/14 - Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors by photoelectric feelers or detectors
  • B65H 1/18 - Supports or magazines for piles from which articles are to be separated with means for advancing the pile to present the articles to a separating device controlled by height of pile

35.

Information processing apparatus, information processing method and storage medium

      
Application Number 17539782
Grant Number 11656818
Status In Force
Filing Date 2021-12-01
First Publication Date 2022-06-16
Grant Date 2023-05-23
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Esaki, Yasuhiro

Abstract

An information processing apparatus including a controller configured to receive selection of a medium feeder corresponding to a page number from among a plurality of medium feeders that feed a medium; and to regard a page range of the page numbers that have been received as a cycle pattern and to repeatedly apply the cycle pattern to page numbers beyond the page range, to set, as the medium feeders corresponding the page numbers beyond the page range, the medium feeders corresponding to the page numbers in the cycle pattern.

IPC Classes  ?

36.

Conveying apparatus with conveyance surface facing downward

      
Application Number 17507089
Grant Number 11772922
Status In Force
Filing Date 2021-10-21
First Publication Date 2022-05-05
Grant Date 2023-10-03
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Fuwa, Hiroki

Abstract

A conveying apparatus includes a conveyor and a conveyed object receptor. The conveyor includes a conveyance surface facing downward and configured to convey a conveyed object having a sheet-like shape. The conveyed object receptor is arranged below the conveyor and configured to receive the conveyed object having fallen from the conveyor.

IPC Classes  ?

  • B65H 5/22 - Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device
  • B65H 5/02 - Feeding articles separated from piles; Feeding articles to machines by belts or chains
  • B65H 29/24 - Delivering or advancing articles from machines; Advancing articles to or into piles by air-blast or suction apparatus
  • B65H 7/12 - Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors responsive to presence of faulty articles or incorrect separation or feed responsive to double feed or separation
  • B65H 7/16 - Controlling air-supply to pneumatic separators

37.

OIL-BASED INKJET INK

      
Application Number 17377921
Status Pending
Filing Date 2021-07-16
First Publication Date 2022-02-03
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Sugiura, Hikaru

Abstract

An oil-based inkjet ink is disclosed, that contains a pigment, a fatty acid ester-based solvent (A) having a viscosity of 5.0 mPa·s or lower and a boiling point of 300° C. or higher but lower than 400° C., and a fatty acid ester-based solvent (B) having a viscosity of 10.0 mPa·s or higher and a boiling point of 400° C. or higher.

IPC Classes  ?

  • C09D 11/36 - Inkjet printing inks based on non-aqueous solvents
  • C09D 11/326 - Pigment inks characterised by the pigment dispersant
  • C09D 11/322 - Pigment inks
  • C09D 11/033 - Printing inks characterised by features other than the chemical nature of the binder characterised by the solvent
  • C09D 11/037 - Printing inks characterised by features other than the chemical nature of the binder characterised by the pigment

38.

SHEET FEED DEVICE

      
Application Number 17344315
Status Pending
Filing Date 2021-06-10
First Publication Date 2022-01-06
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Morita, Yoshihisa

Abstract

A sheet feed device includes: a conveyor configured to convey a top sheet of sheets floated from a sheet stack; a blower configured to blow air in an obliquely upward direction from a position lower than the conveyor toward the sheet stack; and a direction converter configured to convert a direction of the air blown by the blower to a direction which is downward more than a direction of the air at a position where the air is blown from the blower and let the air flow in between the top sheet and a second sheet subsequent to the top sheet of the sheets floated from the sheet stack.

IPC Classes  ?

  • B65H 3/48 - Air blast acting on edges of, or under, articles
  • B65H 3/04 - Endless-belt separators

39.

MEDIUM FEEDING MECHANISM

      
Application Number 17321746
Status Pending
Filing Date 2021-05-17
First Publication Date 2021-12-02
Owner RISO KAGAKU CORPORATION (Japan)
Inventor
  • Miyachi, Ryosuke
  • Iioka, Yuzuru

Abstract

A medium feeding mechanism includes a feeder that feeds a medium, a transportation path that is coupled to the feeder and includes a bent portion, a transporter that transports the medium on the transportation path, and a transportation control unit that controls the transporter, wherein the transportation control unit adjusts a transportation velocity of the medium transported by the transporter on the basis of medium information of the medium and a transportation route shape for the medium.

IPC Classes  ?

  • B65H 7/02 - Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors
  • B65H 7/20 - Controlling associated apparatus

40.

Treatment liquid for screen printing plate and method for treating screen printing plate

      
Application Number 17318320
Grant Number 11739229
Status In Force
Filing Date 2021-05-12
First Publication Date 2021-12-02
Grant Date 2023-08-29
Owner RISO KAGAKU CORPORATION (Japan)
Inventor
  • Ohashi, Nami
  • Imaichi, Yuki
  • Tominaga, Hirotaka
  • Hayashi, Hiroshi

Abstract

A treatment liquid for a screen printing plate is disclosed that contains a resin, water, a surfactant A, and a surfactant B having a solubility in water lower than a solubility of the surfactant A in water. A method for treating a screen printing plate is also disclosed.

IPC Classes  ?

  • C09D 11/102 - Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
  • C09D 175/04 - Polyurethanes
  • C09D 11/107 - Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from unsaturated acids or derivatives thereof
  • C09D 133/08 - Homopolymers or copolymers of acrylic acid esters
  • C09D 127/06 - Homopolymers or copolymers of vinyl chloride
  • C09D 133/10 - Homopolymers or copolymers of methacrylic acid esters

41.

Image processing apparatus

      
Application Number 17238802
Grant Number 11397881
Status In Force
Filing Date 2021-04-23
First Publication Date 2021-11-18
Grant Date 2022-07-26
Owner RISO KAGAKU CORPORATION (Japan)
Inventor
  • Shimomura, Kenji
  • Kawashima, Masahiro

Abstract

An image processing apparatus is equipped with: an image data receiving unit that receives image data; and a print data generating unit that generates multiple value data as print data by performing a halftone process on the image data and converting the image data into at least three values. The print data generating unit administers a halftone process that includes a density fluctuation suppressing process that results in the print data always including a zero value except for a case in which all of the pixels that constitute the image data are converted into a maximum value.

IPC Classes  ?

  • G06K 15/02 - Arrangements for producing a permanent visual presentation of the output data using printers
  • G06K 15/10 - Arrangements for producing a permanent visual presentation of the output data using printers by matrix printers
  • H04N 1/407 - Control or modification of tonal gradation or of extreme levels, e.g. background level
  • H04N 1/405 - Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels
  • B41J 2/045 - Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers

42.

Sheet feed device

      
Application Number 17189657
Grant Number 11518633
Status In Force
Filing Date 2021-03-02
First Publication Date 2021-09-16
Grant Date 2022-12-06
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Okawara, Miki

Abstract

A controller drives a floating unit and a conveyor to perform a sheet feed operation, during the sheet feed operation, acquires an amount of received light at a detector during floating of sheets floated by the floating unit each time each sheet is conveyed by the conveyor, and perform a following control of lifting a stacking tray upon the acquired amount of received light being less than a threshold value. The controller, after start of the sheet feed operation, samples amounts of received light at the detector during floating of the sheets floated by the floating unit, performs a threshold value determination process of determining the threshold value by using the sampled amounts of received light, and starts the following control upon determining the threshold value.

IPC Classes  ?

  • B65H 3/48 - Air blast acting on edges of, or under, articles
  • B65H 1/18 - Supports or magazines for piles from which articles are to be separated with means for advancing the pile to present the articles to a separating device controlled by height of pile
  • B65H 5/22 - Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device
  • B65H 1/04 - Supports or magazines for piles from which articles are to be separated adapted to support articles substantially horizontally, e.g. for separation from top of pile
  • B65H 3/14 - Air blasts producing partial vacuum
  • B65H 3/12 - Suction bands, belts, or tables moving relatively to the pile
  • B65H 7/14 - Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors by photoelectric feelers or detectors
  • B65H 7/16 - Controlling air-supply to pneumatic separators
  • B65H 1/14 - Supports or magazines for piles from which articles are to be separated with means for advancing the pile to present the articles to a separating device comprising positively-acting mechanical devices

43.

Medium feeding apparatus

      
Application Number 17154039
Grant Number 11629019
Status In Force
Filing Date 2021-01-21
First Publication Date 2021-08-26
Grant Date 2023-04-18
Owner RISO KAGAKU CORPORATION (Japan)
Inventor
  • Morita, Yoshihisa
  • Okada, Yoshiyuki

Abstract

A medium feeding apparatus includes: a placement mount on which a plurality of media are placed; a transportation mechanism that transports an uppermost medium of the plurality of media placed on the placement mount; a floating-air blowout mechanism that blows out air to float at least the uppermost medium; a suction mechanism that sucks air to cause the uppermost medium floated by the floating-air blowout mechanism blowing out air to be attracted to the transportation mechanism; and a floating-air control unit that causes the floating-air blowout mechanism to start to blow out air while the uppermost medium is being attracted to the transportation mechanism after starting to be transported by the transportation mechanism, so as to float at least a second medium located below the uppermost medium, and causes the floating-air blowout mechanism to stop blowing out air before the second medium starts to be transported by the transportation mechanism.

IPC Classes  ?

  • B65H 3/48 - Air blast acting on edges of, or under, articles
  • B65H 7/04 - Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors responsive to absence of articles, e.g. exhaustion of pile
  • B65H 3/12 - Suction bands, belts, or tables moving relatively to the pile
  • B65H 3/14 - Air blasts producing partial vacuum
  • B65H 5/22 - Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device

44.

Ink-jet printer

      
Application Number 16293352
Grant Number RE048686
Status In Force
Filing Date 2019-03-05
First Publication Date 2021-08-17
Grant Date 2021-08-17
Owner RISO KAGAKU CORPORATION (Japan)
Inventor
  • Otsuka, Shinichiro
  • Kubota, Hirohito

Abstract

A head holder has an opening through which a space between the head holder and a conveyer communicates with an inside of the head holder. Ahead cooler includes a blower configured to blow air into the head holder from an outside of the head holder with a flow rate of blow air and a suction unit configured to suction air from the head holder with a flow rate of suction air. The head cooler generates cooling air for cooling an ink-jet head inside the head holder by the blower and the suction unit. A controller controls the flow rate of blow air and the flow rate of suction air such that air containing ink mist is suctioned into the head holder through the opening.

IPC Classes  ?

  • B41J 2/045 - Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
  • B41J 2/18 - Ink recirculation systems
  • B41J 29/38 - Drives, motors, controls, or automatic cut-off devices for the entire printing mechanism
  • B41J 2/17 - Ink jet characterised by ink handling
  • B41J 29/377 - Cooling or ventilating arrangements
  • B41J 2/175 - Ink supply systems
  • B41J 2/245 - Print head assemblies line printer type
  • B41J 2/185 - Ink-collectors; Ink-catchers

45.

Medium ejection apparatus

      
Application Number 17143389
Grant Number 11479435
Status In Force
Filing Date 2021-01-07
First Publication Date 2021-08-05
Grant Date 2022-10-25
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Takahashi, Hisayuki

Abstract

A medium ejection apparatus including: a placement mount on which media are placed; a medium-leading-edge position restriction part that moves between a restriction position at which the restriction part restricts a position of a leading edge portion of a medium ejected toward the placement mount with reference to an ejection direction of the medium and a retracted position retracted from the restriction position; and a medium position control unit that controls the medium-leading-edge position restriction part such that the medium-leading-edge position restriction part performs a leading-edge restriction operation of moving from the retracted position to the restriction position and moving from the restriction position to the retracted position when the medium-leading-edge position restriction part and an upper surface of a medium are not in contact with each other.

IPC Classes  ?

  • B65H 31/38 - Apparatus for vibrating or knocking the pile during piling
  • B65H 31/10 - Pile receivers with movable end support arranged to recede as pile accumulates the articles being piled one above another and applied at the top of the pile
  • B65H 7/02 - Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors

46.

ADHESIVE, HEAT-SENSITIVE SCREEN MASTER, AND METHOD FOR PRODUCING HEAT-SENSITIVE SCREEN MASTER

      
Application Number 17129017
Status Pending
Filing Date 2020-12-21
First Publication Date 2021-06-24
Owner RISO KAGAKU CORPORATION (Japan)
Inventor
  • Tominaga, Hirotaka
  • Teranaka, Tomoko
  • Iwamoto, Masahiro

Abstract

An adhesive containing at least one selected from the group consisting of a urethane prepolymer and a polyol, a polyisocyanate, a polymerizable (meth)acrylate compound, and a photopolymerization initiator is disclosed. A heat-sensitive screen master and a method for producing a heat-sensitive screen master are also disclosed.

IPC Classes  ?

  • C09J 175/04 - Polyurethanes
  • B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
  • B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
  • B32B 27/12 - Layered products essentially comprising synthetic resin next to a fibrous or filamentary layer
  • B41F 15/34 - Screens; Frames; Holders therefor
  • B41C 1/14 - Forme preparation for stencil printing or silk-screen printing

47.

Transportation apparatus

      
Application Number 17098801
Grant Number 11584599
Status In Force
Filing Date 2020-11-16
First Publication Date 2021-05-27
Grant Date 2023-02-21
Owner RISO KAGAKU CORPORATION (Japan)
Inventor
  • Shibata, Ryuichi
  • Okawara, Miki

Abstract

A transportation apparatus includes a plurality of transportation members that are arranged in a transportation direction for a medium and transport the medium, a plurality of actuators that drive the plurality of transportation members, and a processor that controls the plurality of actuators in such a manner as to increase transportation velocities of the plurality of actuators in order from actuators for driving transportation members on a downstream side in the transportation direction to actuators for driving transportation members on an upstream side in the transportation direction.

IPC Classes  ?

  • B65H 29/58 - Article switches or diverters
  • B65H 5/06 - Feeding articles separated from piles; Feeding articles to machines by rollers
  • B65H 5/34 - Varying the phase of feed relative to the receiving machine
  • B65H 85/00 - Recirculating articles, i.e. feeding each article to, and delivering it from, the same machine work-station more than once
  • B41J 11/00 - Devices or arrangements for supporting or handling copy material in sheet or web form

48.

Printing system

      
Application Number 16990327
Grant Number 11144266
Status In Force
Filing Date 2020-08-11
First Publication Date 2021-03-04
Grant Date 2021-10-12
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Kurita, Shoji

Abstract

A printing system includes: a first printing device, which has a first print processing unit that performs print processing and a first display unit that displays a setting input screen that receives a predetermined input of settings; a second printing device, which is provided on the downstream side of the first printing device, has a second print processing unit that performs print processing and a second display unit that displays a setting input screen that receives a predetermined input of settings; and a control unit that controls the first printing device and the second printing device. The control unit enables a setting to be input via the setting input screen of only one of first display unit and the second display unit in the case that input of settings having the same content is to be received by the first printing device and the second printing device.

IPC Classes  ?

49.

Medium ejection apparatus

      
Application Number 16884554
Grant Number 11235572
Status In Force
Filing Date 2020-05-27
First Publication Date 2021-03-04
Grant Date 2022-02-01
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Takahashi, Hisayuki

Abstract

A medium ejection apparatus includes a placement mount on which media are placed, a restriction part that moves between a restriction position at which the restriction part restricts media ejected toward the placement mount and a retracted position retracted from the restriction position, and a processor that controls the restriction part by adjusting a restriction frequency on the basis of at least either an amount of movement of the restriction part from the retracted position to the restriction position or ejection intervals at which the media are ejected toward the placement mount, the restriction frequency being a frequency with which the restriction part performs a restriction operation for the media.

IPC Classes  ?

  • B65H 31/34 - Apparatus for squaring-up piled articles
  • B41J 2/045 - Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
  • B41J 2/175 - Ink supply systems
  • B41J 29/12 - Guards, shields or dust excluders
  • B65H 31/00 - Pile receivers
  • B65H 31/20 - Pile receivers adjustable for different article sizes

50.

Wiping device

      
Application Number 16934423
Grant Number 11390085
Status In Force
Filing Date 2020-07-21
First Publication Date 2021-01-28
Grant Date 2022-07-19
Owner RISO KAGAKU CORPORATION (Japan)
Inventor
  • Matsunaga, Katsuhiko
  • Nakata, Ami
  • Yamamoto, Hirotaka
  • Lee, Moon-Ho

Abstract

A wiping device is equipped with a wiping blade that wipes an ink ejection surface of a nozzle row of an ink jet head, a cleansing tank that stores a cleansing solution and in which the wiping blade is immersed, and a shower unit that sprays the cleansing solution onto the wiping blade.

IPC Classes  ?

  • B41J 2/165 - Prevention of nozzle clogging, e.g. cleaning, capping or moistening for nozzles

51.

Wiper and wiper mechanism

      
Application Number 16854998
Grant Number 11135851
Status In Force
Filing Date 2020-04-22
First Publication Date 2020-12-03
Grant Date 2021-10-05
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Ujiie, Hideyuki

Abstract

A wiper that extends toward an inkjet head and wipes a nozzle surface of the inkjet head includes: a base section extending in an extension direction of the wiper, an inclined surface continuous with the base section and having, in a direction in which the wiper travels during wiping, a thickness that gradually decreases toward the extension direction; and a leading-end projecting section thinner than the base section and provided at a leading end of the wiper in such a manner as to be continuous with the inclined surface and project in the extension direction.

IPC Classes  ?

  • B41J 2/165 - Prevention of nozzle clogging, e.g. cleaning, capping or moistening for nozzles

52.

Print data generating apparatus, capable of determining optimized raster image processor (RIP) setting conditions that maximize printing speed

      
Application Number 16876713
Grant Number 11068216
Status In Force
Filing Date 2020-05-18
First Publication Date 2020-12-03
Grant Date 2021-07-20
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Ishi, Keiichiro

Abstract

A print data generating apparatus includes a machine learning unit that has a learned model which is obtained by inputting and conducting machine teaming of the relationships among data size of document data of a plurality of print jobs, print setting conditions, RIP setting conditions and printing speeds when the document data are printed by a printing unit; a printing speed predicting unit that predicts the printing speed of a print job to be printed by inputting the data size of the document data of the print job to be printed, the print setting conditions, and arbitrary RIP setting conditions into the learned model; and an optimized RIP setting condition determining unit that determines optimized RIP setting conditions that result in the printing speed which is predicted by the printing speed predicting unit approaching or becoming greater than or equal to a processing seed of the printing unit.

IPC Classes  ?

  • G06F 3/12 - Digital output to print unit
  • G06N 20/00 - Machine learning
  • G06K 15/02 - Arrangements for producing a permanent visual presentation of the output data using printers

53.

Printer

      
Application Number 16634381
Grant Number 11433688
Status In Force
Filing Date 2018-03-12
First Publication Date 2020-10-08
Grant Date 2022-09-06
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Ueno, Ryo

Abstract

A desired image is printed in a non-contact state on a print object surface with a flyable printer in which a printing device is mounted in a flying object. The printer includes a flying object having a body part, a controller, and a drive part; and a print head, mounted in the flying object, to print a desired image in a non-contact state, on a print object which the flying object has approached. The print head is driven while a gap is maintained at a predetermined value by bringing a gap adjustment part attached to the body part of the flying object into contact with the print object or by accurate control of the drive part. It is possible to print a desired image in good image quality regardless of the state of the surface of the print object.

IPC Classes  ?

  • B41J 25/308 - Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface with print gap adjustment mechanisms
  • B41J 3/44 - Typewriters or selective printing mechanisms having dual functions or combined with, or coupled to, apparatus performing other functions
  • B64C 39/02 - Aircraft not otherwise provided for characterised by special use
  • B41J 3/28 - Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for printing downwardly on flat surfaces, e.g. of books, drawings, boxes
  • B41J 2/175 - Ink supply systems
  • B41J 21/16 - Column, tabular or like printing arrangements; Means for centralising short lines controlled by the sensing of marks or formations on the paper being typed, an undersheet, or the platen
  • B64C 27/08 - Helicopters with two or more rotors
  • B64D 47/08 - Arrangements of cameras
  • B41J 2/01 - Ink jet

54.

Image forming apparatus including a plurality of gap adjusters

      
Application Number 16823396
Grant Number 11173735
Status In Force
Filing Date 2020-03-19
First Publication Date 2020-10-01
Grant Date 2021-11-16
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Endo, Hiroki

Abstract

An image forming apparatus includes a conveyer belt that transports sheets, a platen plate that supports the conveyer belt to be slidable, a head holding unit that holds inkjet heads ejecting ink to sheets transported on the conveyer belt and being arrayed in a direction orthogonal to a transport direction of the conveyer belt, and a pair of gap adjustment units that have ends on one side being respectively attached to both ends of a lower surface of the head holding unit and ends on the other side being attached to an upper surface of the platen plate to adjust a gap between the lower surface of the head holding unit and the upper surface of the platen plate.

IPC Classes  ?

  • B41J 25/308 - Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface with print gap adjustment mechanisms
  • B41J 11/00 - Devices or arrangements for supporting or handling copy material in sheet or web form
  • B41J 2/02 - Ink jet characterised by the jet generation process generating a continuous ink jet
  • B41J 11/20 - Platen adjustments for varying the strength of impression, for a varying number of papers, for wear or for alignment

55.

Medium supply apparatus

      
Application Number 16816800
Grant Number 10870548
Status In Force
Filing Date 2020-03-12
First Publication Date 2020-10-01
Grant Date 2020-12-22
Owner RISO KAGAKU CORPORATION (Japan)
Inventor
  • Hori, Eiji
  • Morita, Yoshihisa

Abstract

A medium supply apparatus includes: a placement mount on which a plurality of media are placed; a transportation mechanism that transports an uppermost medium of the plurality of media placed on the placement mount; and an aspiration mechanism that aspirates air to attract the uppermost medium to the transportation mechanism, wherein the aspiration mechanism includes a blocking means for blocking air aspiration performed by the aspiration mechanism, in such a manner as to prevent another medium of the plurality of media that is located below the uppermost medium from being attracted to the transportation mechanism.

IPC Classes  ?

  • B65H 3/12 - Suction bands, belts, or tables moving relatively to the pile
  • B65H 3/46 - Supplementary devices or measures to assist separation or prevent double feed

56.

Inkjet printer with flow adjuster

      
Application Number 16823399
Grant Number 11155110
Status In Force
Filing Date 2020-03-19
First Publication Date 2020-10-01
Grant Date 2021-10-26
Owner RISO KAGAKU CORPORATION (Japan)
Inventor
  • Shimomura, Kenji
  • Adachi, Hironao

Abstract

An inkjet printer includes: a conveyer configured to convey a print medium; an inkjet head configured to eject ink to the print medium conveyed by the conveyer; a flow adjuster configured to adjust strength of an air flow in an under-head space which is a space between the inkjet head and the conveyer; and a controller configured to control the flow adjuster such that the smaller a satellite droplet generated from the ink ejected by the inkjet head is, the stronger the air flow in the under-head space is.

IPC Classes  ?

  • B41J 2/17 - Ink jet characterised by ink handling
  • B41J 29/377 - Cooling or ventilating arrangements
  • B41J 25/308 - Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface with print gap adjustment mechanisms

57.

Discharge unit

      
Application Number 16823966
Grant Number 11912522
Status In Force
Filing Date 2020-03-19
First Publication Date 2020-10-01
Grant Date 2024-02-27
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Miyachi, Ryosuke

Abstract

A discharge tray for loading thereon sheets to be discharged at a predetermined discharge angle by a discharge roller pair is provided. The discharge tray includes a loading surface provided at a predetermined first inclination angle with respect to a discharge direction of a sheet by the discharge roller pair so that a top of the sheet discharged by the discharge roller pair comes into contact with the loading surface, and a guide unit provided on the loading surface at a second inclination angle with respect to the loading surface so as to partially lift up the loaded sheet from the loading surface.

IPC Classes  ?

58.

Method for producing printed matter

      
Application Number 16803618
Grant Number 11135865
Status In Force
Filing Date 2020-02-27
First Publication Date 2020-09-03
Grant Date 2021-10-05
Owner RISO KAGAKU CORPORATION (Japan)
Inventor
  • Urano, Yuki
  • Hayashi, Akiko
  • Yamazaki, Takahisa
  • Fukuda, Mamoru

Abstract

A method for producing printed matter that includes applying one of a first pretreatment liquid and a second pretreatment liquid, the other of the first pretreatment liquid and the second pretreatment liquid, and then an aqueous ink, in this order, to a recording region of a substrate using an inkjet recording apparatus, wherein the first pretreatment liquid and the second pretreatment liquid are jetted so as to land on the substrate in a fixed order, the first pretreatment liquid contains a coagulant, and the second pretreatment liquid does not contain a coagulant, but contains a penetrant.

IPC Classes  ?

  • B41M 5/00 - Duplicating or marking methods; Sheet materials for use therein
  • B41J 2/21 - Ink jet for multi-colour printing
  • C09D 11/38 - Inkjet printing inks characterised by non-macromolecular additives other than solvents, pigments or dyes
  • C09D 11/322 - Pigment inks

59.

Method for producing printed matter

      
Application Number 16803591
Grant Number 11077691
Status In Force
Filing Date 2020-02-27
First Publication Date 2020-09-03
Grant Date 2021-08-03
Owner RISO KAGAKU CORPORATION (Japan)
Inventor
  • Urano, Yuki
  • Hayashi, Akiko
  • Fukuda, Mamoru

Abstract

A method for producing printed matter is disclosed that includes applying a pretreatment liquid containing a resin and a pretreatment liquid containing a coagulant to a substrate, and after the applying of these pretreatment liquids, applying an aqueous inkjet ink to the substrate using an inkjet system.

IPC Classes  ?

  • B41M 5/00 - Duplicating or marking methods; Sheet materials for use therein
  • B41J 2/21 - Ink jet for multi-colour printing
  • C09D 11/38 - Inkjet printing inks characterised by non-macromolecular additives other than solvents, pigments or dyes
  • C09D 11/322 - Pigment inks

60.

Agitation device configured to execute transfer operation and agitation operation of liquid

      
Application Number 16791213
Grant Number 11167557
Status In Force
Filing Date 2020-02-14
First Publication Date 2020-08-27
Grant Date 2021-11-09
Owner RISO KAGAKU CORPORATION (Japan)
Inventor
  • Bansyo, Toshihiro
  • Yamori, Takehiro

Abstract

An agitation device includes: a first container configured to house a liquid; a second container configured to house the liquid transferred from the first container; a transfer agitation unit configured to selectively execute a transfer operation of transferring the liquid from the first container to the second container and an agitation operation of agitating the liquid in the second container by using a common drive source; and a controller configured to control the transfer agitation unit to alternately execute the transfer operation and the agitation operation upon transferring the liquid from the first container to the second container.

IPC Classes  ?

61.

Transfer device configured to transfer liquid from container with bag portion

      
Application Number 16791278
Grant Number 11110713
Status In Force
Filing Date 2020-02-14
First Publication Date 2020-08-27
Grant Date 2021-09-07
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Yamori, Takehiro

Abstract

A transfer device includes: a first container including a bag portion configured to house liquid; a second container configured to house the liquid transferred from the first container; a transfer unit configured to transfer the liquid from the first container to the second container; and a controller configured to control the transfer unit to intermittently and repeatedly execute a transfer operation of starting transfer of the liquid and then completing the transfer before a side of the bag portion toward the transfer unit transitions to a suction contact state upon transferring the liquid from the first container to the second container.

IPC Classes  ?

  • B41J 2/175 - Ink supply systems
  • B41J 2/005 - Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
  • B41J 2/01 - Ink jet
  • C09D 11/322 - Pigment inks

62.

Dust removal device and printer

      
Application Number 16790034
Grant Number 11260651
Status In Force
Filing Date 2020-02-13
First Publication Date 2020-08-20
Grant Date 2022-03-01
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Kambayashi, Takuya

Abstract

A dust removal device for continuous paper improves operability and usability for a user. The continuous paper is continuously supplied in a rightward direction, then through guide rollers, the direction of the continuous paper is reversed leftward. A downward front surface of the continuous paper is cleaned with a first dust removal device. Further, a direction of the continuous paper is reversed with a guide roller rightward. A downward back surface of the continuous paper is cleaned with a second dust removal device, and is guided to the downstream side. The two dust removal devices are provided in a vertical positional relationship in space. Dust removed with a dust removing member falls to a dust receiving member and is stored in the dust receiving member. It is possible to easily dispose the dust by pulling out the dust removal device from a cleaning position to an outside detachment position.

IPC Classes  ?

  • B41F 23/00 - Devices for treating the surfaces of sheets, webs or other articles in connection with printing
  • B41F 35/00 - Cleaning arrangements or devices
  • B65H 20/02 - Advancing webs by friction roller

63.

Liquid agent mist recovery device

      
Application Number 16793587
Grant Number 11090943
Status In Force
Filing Date 2020-02-18
First Publication Date 2020-08-20
Grant Date 2021-08-17
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Nakamura, Shunta

Abstract

An ink mist recovery device allows suction of ink mist with uniform suction force irrespective of a position on a confronting sheet. The ink mist recovery device includes a recovery casing having multiple suction ports confronting a sheet, and a suction unit connected to the recovery casing. At least one of a size of each of the suction ports and a first suction distance from each of the suction ports to a suction slit is set in accordance with a second suction distance from the suction unit to the suction slit via each of the suction ports so that the suction force is kept uniform at the respective positions on the sheet corresponding to the suction ports. The mist suction force is made uniform over the entire width of the suction slit to improve quality of the printed image without sucking ink droplets required to land.

IPC Classes  ?

  • B41J 2/17 - Ink jet characterised by ink handling

64.

Liquid agent mist recovery device

      
Application Number 16794671
Grant Number 11110711
Status In Force
Filing Date 2020-02-19
First Publication Date 2020-08-20
Grant Date 2021-09-07
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Nakamura, Shunta

Abstract

A liquid agent mist recovery device for a liquid agent application device prevents dripping of a droplet formed from a sucked liquid agent mist onto a sheet. The ink mist recovery device installed downstream of an inkjet head includes a recovery casing with an opening for introducing the mist. The opening is communicated with a recovery hole connected to a suction fun, and positioned apart from an upstream wall surface by a distance corresponding to receiving portions for receiving a droplet trickling from the wall surface, and apart from a downstream wall surface so that air introduced from downstream obstructs the flow of the upstream liquid agent mist for guiding into the recovery hole. The liquid agent mist from upstream is securely introduced and recovered. The liquid agent mist trickling from the wall surface of the recovery hole is received by the receiving portion rather than dripping onto the sheet.

IPC Classes  ?

65.

Tank with tank main body and lid

      
Application Number 16676863
Grant Number 11141984
Status In Force
Filing Date 2019-11-07
First Publication Date 2020-08-06
Grant Date 2021-10-12
Owner RISO KAGAKU CORPORATION (Japan)
Inventor
  • Saigusa, Toshiya
  • Sugitani, Hiroshi
  • Yamori, Takehiro

Abstract

A tank includes a tank main body configured to house liquid and a lid configured to cover an upper side of the tank main body. The tank main body includes an atmosphere communication hole having an opening opened on an upper surface of the tank main body and a lowered step portion dug down from a periphery of the opening. The lid includes a recess formed on a lower surface of the lid and facing the opening.

IPC Classes  ?

  • B41J 2/175 - Ink supply systems
  • B65D 43/02 - Removable lids or covers
  • B65D 53/00 - Sealing or packing elements; Sealings formed by liquid or plastic material

66.

Medium feeding apparatus

      
Application Number 16686563
Grant Number 11261042
Status In Force
Filing Date 2019-11-18
First Publication Date 2020-08-06
Grant Date 2022-03-01
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Noguchi, Yoshihiro

Abstract

A medium feeding apparatus includes: a feed tray on which media M are placed; a draw-out unit that draws out an uppermost medium among the media placed on the feed tray; a hanging member that hangs the feed tray; and a load member that applies, when an amount of the media placed on the feed tray is equal to or smaller than a predetermined amount, a downward load to a portion of the feed tray located on an upstream side in a draw-out direction of the media.

IPC Classes  ?

  • B65H 1/14 - Supports or magazines for piles from which articles are to be separated with means for advancing the pile to present the articles to a separating device comprising positively-acting mechanical devices
  • B65H 1/04 - Supports or magazines for piles from which articles are to be separated adapted to support articles substantially horizontally, e.g. for separation from top of pile
  • B65H 3/06 - Rollers or like rotary separators
  • B65H 3/34 - Article-retaining devices controlling the release of the articles to the separators
  • B65H 1/10 - Supports or magazines for piles from which articles are to be separated with means for advancing the pile to present the articles to a separating device comprising weights

67.

Liquid tank

      
Application Number 16746053
Grant Number 11097548
Status In Force
Filing Date 2020-01-17
First Publication Date 2020-08-06
Grant Date 2021-08-24
Owner RISO KAGAKU CORPORATION (Japan)
Inventor
  • Sugitani, Hiroshi
  • Bansyo, Toshihiro
  • Yamori, Takehiro

Abstract

A tank includes: a liquid container configured to store a liquid; an inlet opening through which the liquid flows into the liquid container; an outlet opening through which the liquid flows out from the liquid container; and a channel formation member arranged between the inlet opening and the outlet opening and configured to form channels. Widths of the channels are such that a channel at a position where stagnation of the liquid is more likely to occur has a larger width.

IPC Classes  ?

68.

Oil-based inkjet ink, method for producing oil-based inkjet ink and method for producing dispersant

      
Application Number 16717805
Grant Number 11542402
Status In Force
Filing Date 2019-12-17
First Publication Date 2020-07-30
Grant Date 2023-01-03
Owner RISO KAGAKU CORPORATION (Japan)
Inventor
  • Ezaki, Naofumi
  • Shimura, Shinichiro
  • Ozawa, Shinsuke
  • Hamada, Tsukasa
  • Kitanohara, Mitsuko
  • Shiraishi, Tetsuya

Abstract

An oil-based inkjet ink is disclosed that contains a pigment, a dispersant formed with an acidic resin, a low-molecular weight amine compound and a basic polymer, and a non-aqueous solvent. A method for producing an oil-based inkjet ink and a method for producing a dispersant is also disclosed.

IPC Classes  ?

  • C09D 11/36 - Inkjet printing inks based on non-aqueous solvents
  • C09D 11/033 - Printing inks characterised by features other than the chemical nature of the binder characterised by the solvent
  • C09D 11/037 - Printing inks characterised by features other than the chemical nature of the binder characterised by the pigment
  • C09D 11/102 - Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
  • C09D 11/107 - Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from unsaturated acids or derivatives thereof
  • C09D 11/322 - Pigment inks
  • C09D 11/38 - Inkjet printing inks characterised by non-macromolecular additives other than solvents, pigments or dyes

69.

Printing system

      
Application Number 16724717
Grant Number 11711479
Status In Force
Filing Date 2019-12-23
First Publication Date 2020-07-30
Grant Date 2023-07-25
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Ogawa, Hideaki

Abstract

A printing system includes: a first printing unit that performs printing on a medium on the basis of first printing data; a first inventing unit that is located downstream from the first printing unit in a transportation direction specific to the medium and performs an inverting operation that is an operation of inverting front and back sides of the medium; a second printing unit that is located downstream from the first inverting unit in the transportation direction and performs printing on the medium on the basis of second printing data; and a control unit that determines whether the first inverting unit needs to perform the inverting operation, on the basis of whether the second printing data indicates a printing page for the front or back side of the medium.

IPC Classes  ?

  • B41J 3/60 - Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for printing on both faces of the printing material
  • B65H 85/00 - Recirculating articles, i.e. feeding each article to, and delivering it from, the same machine work-station more than once
  • G03G 15/00 - Apparatus for electrographic processes using a charge pattern
  • H04N 1/23 - Reproducing arrangements
  • B41J 13/00 - Devices or arrangements specially adapted for supporting or handling copy material in short lengths, e.g. sheets
  • B65H 15/00 - Overturning articles

70.

Inkjet printer with ejection adjustment function based on test pattern

      
Application Number 16495581
Grant Number 10987948
Status In Force
Filing Date 2018-03-19
First Publication Date 2020-07-30
Grant Date 2021-04-27
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Ebisawa, Takashi

Abstract

A controller performs control to: print a test pattern on a print medium, the test pattern including: a head reference straight line extending in a main scanning direction and printed by a reference print head; and head adjustment straight lines extending in the main scanning direction and printed by each of non-reference print heads at timings corresponding to timing adjustment values; and in response to input of information specifying the head adjustment straight line with a smallest print misalignment amount in the sub-scanning direction with respect to the head reference straight line for each of the non-reference print heads, determine, for each of the non-reference print heads, the timing adjustment value corresponding to the head adjustment straight line specified by the input information as an adjustment value of an ink ejection timing in the non-reference print head in normal printing.

IPC Classes  ?

  • B41J 3/54 - Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed with two or more sets of type or printing elements
  • B41J 2/155 - Arrangement thereof for line printing
  • B41J 2/21 - Ink jet for multi-colour printing
  • B41J 29/393 - Devices for controlling or analysing the entire machine

71.

ADHESIVE FOR HEAT-SENSITIVE SCREEN MASTER, HEAT-SENSITIVE SCREEN MASTER, AND METHOD FOR PRODUCING HEAT-SENSITIVE SCREEN MASTER

      
Application Number 16715728
Status Pending
Filing Date 2019-12-16
First Publication Date 2020-07-02
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Tominaga, Hirotaka

Abstract

An adhesive for a heat-sensitive screen master is disclosed, the adhesive containing at least one selected from the group consisting of a urethane prepolymer and a polyol, and a polyisocyanate, wherein the mass ratio (A:B) between the at least one (A) selected from the group consisting of a urethane prepolymer and a polyol, and the polyisocyanate (B) is within a range from 35:65 to 5:95. A heat-sensitive screen master and a method for producing a heat-sensitive screen master are also disclosed.

IPC Classes  ?

72.

Image inspection apparatus

      
Application Number 16711891
Grant Number 11434093
Status In Force
Filing Date 2019-12-12
First Publication Date 2020-06-18
Grant Date 2022-09-06
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Kawai, Muneaki

Abstract

An image inspection apparatus is capable of inspecting an image on a print sheet as an inspection object with high accuracy while conveying the print sheet from an upstream conveyance unit to a downstream conveyance unit. The image inspection apparatus inspects the print sheet conveyed at a first conveyance speed with a first conveyance unit of a printing device, with a first inspection unit, while conveying the print sheet at a second conveyance speed with a second conveyance unit of an inspection device. The first inspection unit is provided in a position downstream of an intermediate position between the first conveyance unit and the second conveyance unit by a length longer than a half of the length of the print sheet. Even when the first conveyance speed and the second conveyance speed are not substantially the same, no disorder occurs in the image read with the first inspection unit.

IPC Classes  ?

  • B41J 29/393 - Devices for controlling or analysing the entire machine
  • B41J 11/00 - Devices or arrangements for supporting or handling copy material in sheet or web form
  • B65H 7/02 - Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors
  • G03G 15/00 - Apparatus for electrographic processes using a charge pattern
  • B41F 33/00 - Indicating, counting, warning, control or safety devices
  • H04N 1/00 - PICTORIAL COMMUNICATION, e.g. TELEVISION - Details thereof
  • B41J 13/00 - Devices or arrangements specially adapted for supporting or handling copy material in short lengths, e.g. sheets

73.

Inkjet printing device

      
Application Number 16668386
Grant Number 11141991
Status In Force
Filing Date 2019-10-30
First Publication Date 2020-05-28
Grant Date 2021-10-12
Owner RISO KAGAKU CORPORATION (Japan)
Inventor
  • Endo, Hiroki
  • Sugitani, Hiroshi
  • Miyachi, Ryosuke

Abstract

An inkjet printing device includes an inkjet head that ejects ink to paper to be transported, a blocking unit that blocks ink mist on a downstream side of the inkjet head in a transport direction of paper, an ink mist collection mechanism and a belt platen that collect ink mist blocked by the blocking unit.

IPC Classes  ?

74.

Inkjet printing apparatus with ink circulator

      
Application Number 16571566
Grant Number 10919309
Status In Force
Filing Date 2019-09-16
First Publication Date 2020-04-02
Grant Date 2021-02-16
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Tsujino, Naoto

Abstract

An ink circulator includes a first tank configured to supply ink to an inkjet head, a second tank configured to collect the ink from the inkjet head, an inter-tank path through which the ink is delivered from the second tank to the first tank, and an ink deliverer arranged in the inter-tank path and configured to deliver the ink from the second tank to the first tank through the inter-tank path. A third tank and the inter-tank path are connected via a connection path in which a switch arranged. Ink supply to the ink circulator is performed by driving the ink deliverer to deliver the ink from the third tank to the first tank with communication between the inter-tank path and the third tank allowed by the switch.

IPC Classes  ?

75.

Printing apparatus with plurality of sheet feed trays

      
Application Number 16539152
Grant Number 11040556
Status In Force
Filing Date 2019-08-13
First Publication Date 2020-03-05
Grant Date 2021-06-22
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Takata, Atsushi

Abstract

A printing apparatus includes: a printer; a sheet feeder including sheet feed trays; a sheet discharger to discharge and hold sheets printed by the printer; and a controller. Upon unloading of the sheets from the sheet discharger, the controller: determines whether to perform switching of a sheet feed source from a first sheet feed tray which is a latest sheet feed source of the sheet feed trays to a second sheet feed tray which is a sheet feed tray other than the first sheet feed tray of the sheet feed trays, based on a first sheet remaining amount in the first sheet feed tray and a second sheet remaining amount in the second sheet feed tray; and, upon determining to perform the switching, controls the sheet feeder to switch the sheet feed source from the first sheet feed tray to the second sheet feed tray.

IPC Classes  ?

  • B41J 13/10 - Sheet holders, retainers, or stationary guides
  • B41J 13/00 - Devices or arrangements specially adapted for supporting or handling copy material in short lengths, e.g. sheets

76.

Image inspection device

      
Application Number 16552288
Grant Number 11313807
Status In Force
Filing Date 2019-08-27
First Publication Date 2020-03-05
Grant Date 2022-04-26
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Kawai, Muneaki

Abstract

An image inspection device has a first suction conveyance unit which is arranged on the upstream side with a conveyance surface as an upper surface, a second suction conveyance unit which is arranged on the downstream side with a conveyance surface as a lower surface to make the conveyance surface continuous from the upstream side, a first inspection section which inspects an image on a front surface of an inspection object which is conveyed to the first suction conveyance unit and a second inspection section which inspects an image on a back surface of the inspection object which is conveyed to the second suction conveyance unit. The inspection object is conveyed in a state of being sucked and held on the first and second suction conveyance units and therefore is stable in position and posture in conveyance and an expected accuracy is maintained in inspection performed by the first and second inspection sections.

IPC Classes  ?

  • G01N 21/89 - Investigating the presence of flaws, defects or contamination in moving material, e.g. paper, textiles
  • G06T 7/00 - Image analysis
  • H04N 1/00 - PICTORIAL COMMUNICATION, e.g. TELEVISION - Details thereof

77.

Conveyance device and image inspection device

      
Application Number 16552303
Grant Number 11254120
Status In Force
Filing Date 2019-08-27
First Publication Date 2020-03-05
Grant Date 2022-02-22
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Kawai, Muneaki

Abstract

A hanging prevention roller is installed between a first suction conveyance unit on an upstream side and a second suction conveyance unit. When an inspection object is sent from the first suction conveyance unit into the second suction conveyance unit, a top edge of the inspection object abuts on and runs on the hanging prevention roller before the top edge of the inspection objects hangs down under its own weight or due to downward curling and so forth, the top edge is sandwiched between the roller and the second suction conveyance unit, and thereby stable suction conveyance is started without delay.

IPC Classes  ?

  • B41F 33/00 - Indicating, counting, warning, control or safety devices
  • G01N 21/892 - Investigating the presence of flaws, defects or contamination in moving material, e.g. paper, textiles characterised by the flaw, defect or object feature examined

78.

Inkjet printer with inkjet heads in overlapping arrangement

      
Application Number 16487601
Grant Number 10926533
Status In Force
Filing Date 2018-03-05
First Publication Date 2020-02-20
Grant Date 2021-02-23
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Wakabayashi, Mamoru

Abstract

An inkjet printer includes first and second inkjet heads arranged to partially overlap each other in a main scanning direction and configured to eject ink to a print medium conveyed in a direction orthogonal to the main scanning direction and a controller. The controller is configured to perform a distribution processing of distributing a number of drops of ink for each of pixels in an image to be printed by an overlap portion of the first inkjet head and the second inkjet head based on a random number between first nozzles of the first inkjet head and second nozzles of the second inkjet head overlapping each other.

IPC Classes  ?

  • B41J 2/045 - Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers

79.

Oil-based inkjet ink

      
Application Number 16519887
Grant Number 11414560
Status In Force
Filing Date 2019-07-23
First Publication Date 2020-02-06
Grant Date 2022-08-16
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Sugiura, Hikaru

Abstract

An oil-based inkjet ink containing a pigment, a pigment dispersant and a non-aqueous solvent, wherein the non-aqueous solvent contains a silicone oil and a fatty acid ester having 10 to 40 carbon atoms per molecule and having a ratio of (total number of atoms in side chains/total number of atoms in main chain) of at least 0.20.

IPC Classes  ?

  • C09D 11/36 - Inkjet printing inks based on non-aqueous solvents
  • C09D 11/326 - Pigment inks characterised by the pigment dispersant

80.

Liquid collection device with suctioner for sucking liquid

      
Application Number 16456495
Grant Number 10821733
Status In Force
Filing Date 2019-06-28
First Publication Date 2020-01-16
Grant Date 2020-11-03
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Kagaya, Daichi

Abstract

A liquid collection device includes: a suction tank configured to suck and collect liquid accumulated in a liquid reservoir; a suction passage connecting the liquid reservoir and an inlet opened in a lower portion of the suction tank to each other; a suctioner configured to generate a negative pressure in the suction tank and suck the liquid from the liquid reservoir into the suction tank via the suction passage by using the generated negative pressure; and a controller configured to control the suctioner to terminate suction of the liquid into the suction tank upon continuance of a state where a pressure in the suction tank is equal to or greater than a threshold for a prescribed time or more after start of the suction.

IPC Classes  ?

  • B41J 2/165 - Prevention of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
  • B41J 2/17 - Ink jet characterised by ink handling

81.

Oil-based inkjet ink

      
Application Number 16497725
Grant Number 11525065
Status In Force
Filing Date 2018-03-26
First Publication Date 2020-01-16
Grant Date 2022-12-13
Owner RISO KAGAKU CORPORATION (Japan)
Inventor
  • Ando, Kazuyuki
  • Shimura, Shinichiro
  • Morinaga, Marie
  • Sugiura, Hikaru
  • Ozawa, Shinsuke
  • Sugawara, Noriaki

Abstract

2 is a branched alkyl group of 9 or more carbon atoms having a side chain of 4 or more carbon atoms.

IPC Classes  ?

  • C09D 11/36 - Inkjet printing inks based on non-aqueous solvents
  • C09D 11/326 - Pigment inks characterised by the pigment dispersant
  • C09D 11/037 - Printing inks characterised by features other than the chemical nature of the binder characterised by the pigment
  • C09D 11/033 - Printing inks characterised by features other than the chemical nature of the binder characterised by the solvent
  • C09D 11/322 - Pigment inks
  • C09D 11/324 - Pigment inks containing carbon black
  • D06P 5/30 - Ink jet printing
  • D06P 7/00 - Dyeing or printing processes combined with mechanical treatment

82.

Oil-based inkjet ink and method for producing oil-based inkjet ink

      
Application Number 16428147
Grant Number 10907062
Status In Force
Filing Date 2019-05-31
First Publication Date 2020-01-02
Grant Date 2021-02-02
Owner RISO KAGAKU CORPORATION (Japan)
Inventor
  • Matsuzawa, Tomohiro
  • Watanabe, Yoshifumi
  • Ezaki, Naofumi
  • Yamamoto, Yasuo
  • Kitanohara, Mitsuko
  • Shimizu, Manami

Abstract

An oil-based inkjet ink is disclosed that contains colored resin particles, an ionic dispersant and a non-aqueous solvent, wherein the colored resin particles contain a colorant and a urethane-urea resin. A method for producing an oil-based inkjet ink is also disclosed.

IPC Classes  ?

  • C09D 11/36 - Inkjet printing inks based on non-aqueous solvents
  • C09D 11/033 - Printing inks characterised by features other than the chemical nature of the binder characterised by the solvent
  • C09D 11/037 - Printing inks characterised by features other than the chemical nature of the binder characterised by the pigment
  • C09D 11/102 - Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
  • C09D 11/322 - Pigment inks

83.

Ink for inkjet textile printing, ink set, and method for producing printed item

      
Application Number 16454669
Grant Number 11053406
Status In Force
Filing Date 2019-06-27
First Publication Date 2020-01-02
Grant Date 2021-07-06
Owner RISO KAGAKU CORPORATION (Japan)
Inventor
  • Hayashi, Akiko
  • Yamazaki, Takahisa
  • Kinoe, Kokoro

Abstract

An ink for inkjet textile printing is disclosed that contains a pigment, a water-dispersible urethane resin having a film elongation of 600% to 2,000%, a water-soluble organic solvent and water, wherein the weight ratio between the pigment and the water-dispersible urethane resin is from 1:3 to 1:16. An ink set and a method for producing a printed item are also disclosed.

IPC Classes  ?

  • B41J 11/00 - Devices or arrangements for supporting or handling copy material in sheet or web form
  • B41J 11/40 - Blanking or long feeds; Feeding to a particular line, e.g. by rotation of platen or feed roller specially adapted for printing musical scores
  • C09D 11/54 - Inks based on two liquids, one liquid being the ink, the other liquid being a reaction solution, a fixer or a treatment solution for the ink
  • C09D 11/322 - Pigment inks
  • C09D 11/037 - Printing inks characterised by features other than the chemical nature of the binder characterised by the pigment
  • D06P 5/30 - Ink jet printing
  • D06P 5/00 - Other features in dyeing or printing textiles or dyeing leather, furs or solid macromolecular substances in any form
  • D06P 3/52 - Polyesters
  • C09D 11/033 - Printing inks characterised by features other than the chemical nature of the binder characterised by the solvent
  • B41J 3/407 - Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
  • C09D 11/102 - Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds

84.

Density correction profile generation method and image forming device

      
Application Number 16481653
Grant Number 10759184
Status In Force
Filing Date 2018-03-14
First Publication Date 2020-01-02
Grant Date 2020-09-01
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Inagawa, Hironori

Abstract

Density of each pixel is specified from a test pattern for measurement of density distribution, a density profile indicating distribution of the specified density for each pixel is acquired, and a pixel region including a “nozzle of interest” having a certain density difference or more from surrounding pixels and pixels on both sides thereof is extracted as a nozzle region of interest from the acquired density profile. Filters B to E, other than a filter A to be applied for density smoothing processing of pixels that do not belong to the nozzle region of interest, are applied for the density smoothing processing of the pixels in the nozzle region of interest, to generate a profile of a density correction value for eliminating a density difference between respective pixels based on the density profile after the smoothing processing.

IPC Classes  ?

  • B41J 2/21 - Ink jet for multi-colour printing
  • B41J 2/20 - Ink jet characterised by ink handling for preventing or detecting contamination of compounds
  • B41J 2/12 - Ink jet characterised by jet control testing or correcting charge or deflection
  • B41J 2/205 - Ink jet for printing a discrete number of tones

85.

Web conveyance device with brake

      
Application Number 16415213
Grant Number 11046543
Status In Force
Filing Date 2019-05-17
First Publication Date 2019-12-26
Grant Date 2021-06-29
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Tachi, Manabu

Abstract

A conveyance device includes: a conveyance mechanism configured to unwind and convey a web from a web roll; a brake configured to brake rotation of the web roll; a controller configured to perform control of gradually reducing a torque of the brake and then turning off the brake in an operation of turning off the brake in a state where conveyance of the web by the conveyance mechanism is stopped and the brake is on with a tension applied to the web between the web roll and the conveyance mechanism.

IPC Classes  ?

  • B65H 23/185 - Registering, tensioning, smoothing, or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in unwinding mechanisms or in connection with unwinding operations motor-controlled
  • B65H 16/10 - Arrangements for effecting positive rotation of web roll

86.

Image forming apparatus with alternative image forming apparatus selection

      
Application Number 16354656
Grant Number 10917532
Status In Force
Filing Date 2019-03-15
First Publication Date 2019-11-28
Grant Date 2021-02-09
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Saito, Reina

Abstract

A print system includes an image forming apparatus and a wearable terminal configured to communicate with the image forming apparatus. The image forming apparatus includes a detector configured to detect an error and a controller configured to send a guidance information used to remove the error to the wearable terminal. The wearable terminal includes a transmissive display, a fixing portion configured to fix the transmissive display in front of eyes of a user, a communication unit configured to receive the guidance information, and a display controller configured to display the guidance information on the transmissive display for the image forming apparatus viewed through the transmissive display.

IPC Classes  ?

  • H04N 1/00 - PICTORIAL COMMUNICATION, e.g. TELEVISION - Details thereof

87.

Aqueous pigment ink for textile inkjet printing, method for producing printed textile item, and ink set

      
Application Number 16105497
Grant Number 10995230
Status In Force
Filing Date 2018-08-20
First Publication Date 2019-11-21
Grant Date 2021-05-04
Owner RISO KAGAKU CORPORATION (Japan)
Inventor
  • Yamazaki, Takahisa
  • Hayashi, Akiko
  • Uozumi, Shunsuke
  • Kinoe, Kokoro

Abstract

An aqueous pigment ink for textile inkjet printing is disclosed that contains a pigment, a first water-dispersible resin, a second water-dispersible resin and water, wherein the first water-dispersible resin is at least one resin selected from the group consisting of a water-dispersible urethane resin, a water-dispersible (meth)acrylic resin and a water-dispersible styrene/(meth)acrylic resin, the second water-dispersible resin is a water-dispersible polyester resin, the total amount of the first water-dispersible resin and the second water-dispersible resin is from 2 to 18% by mass relative to the total mass of the ink, and the mass ratio of the second water-dispersible resin relative to the first water-dispersible resin (second water-dispersible resin/first water-dispersible resin) is from 0.1 to 5.0. A method for producing a printed textile item and an ink set are also disclosed.

IPC Classes  ?

  • C09D 11/40 - Ink-sets specially adapted for multi-colour inkjet printing
  • C09D 11/38 - Inkjet printing inks characterised by non-macromolecular additives other than solvents, pigments or dyes
  • C09D 11/033 - Printing inks characterised by features other than the chemical nature of the binder characterised by the solvent
  • B41M 5/00 - Duplicating or marking methods; Sheet materials for use therein
  • C09D 11/102 - Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
  • B41J 3/407 - Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
  • C09D 11/104 - Polyesters

88.

Pretreatment liquid for inkjet textile printing, method for producing printed textile item, and ink set for inkjet textile printing

      
Application Number 16298573
Grant Number 10982385
Status In Force
Filing Date 2019-03-11
First Publication Date 2019-11-21
Grant Date 2021-04-20
Owner RISO KAGAKU CORPORATION (Japan)
Inventor
  • Kinoe, Kokoro
  • Hayashi, Akiko
  • Yamazaki, Takahisa
  • Uozumi, Shunsuke

Abstract

A pretreatment liquid for inkjet textile printing is disclosed that includes water and a cellulose-based polymer having a weight average molecular weight of at least 50,000. A method for producing a printed textile item and an ink set for inkjet textile printing are also disclosed.

IPC Classes  ?

  • D06P 1/44 - General processes of dyeing or printing textiles or general processes of dyeing leather, furs or solid macromolecular substances in any form, classified according to the dyes, pigments or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
  • D06P 5/30 - Ink jet printing
  • D06P 3/60 - Natural or regenerated cellulose
  • D06P 1/52 - General processes of dyeing or printing textiles or general processes of dyeing leather, furs or solid macromolecular substances in any form, classified according to the dyes, pigments or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing synthetic macromolecular substances
  • C09D 11/54 - Inks based on two liquids, one liquid being the ink, the other liquid being a reaction solution, a fixer or a treatment solution for the ink
  • D06P 1/50 - Derivatives of cellulose
  • C09D 11/322 - Pigment inks

89.

Aqueous inkjet ink and method for producing printed item

      
Application Number 16016015
Grant Number 10822508
Status In Force
Filing Date 2018-06-22
First Publication Date 2019-11-21
Grant Date 2020-11-03
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Hayashi, Akiko

Abstract

An aqueous inkjet ink is disclosed which contains a colorant, a polyoxyethylene monoallyl ether, and water.

IPC Classes  ?

  • C09D 11/322 - Pigment inks
  • B41J 2/01 - Ink jet
  • C09D 11/033 - Printing inks characterised by features other than the chemical nature of the binder characterised by the solvent
  • B41J 2/21 - Ink jet for multi-colour printing

90.

Portion of a container for an ink cartridge

      
Application Number 29613318
Grant Number D0866659
Status In Force
Filing Date 2017-08-09
First Publication Date 2019-11-12
Grant Date 2019-11-12
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Sunagawa, Hiroyuki

91.

Oil-based inkjet ink and method for producing oil-based inkjet ink

      
Application Number 16279583
Grant Number 10920096
Status In Force
Filing Date 2019-02-19
First Publication Date 2019-10-03
Grant Date 2021-02-16
Owner RISO KAGAKU CORPORATION (Japan)
Inventor
  • Ozawa, Shinsuke
  • Kitanohara, Mitsuko
  • Sugiura, Hikaru
  • Watanabe, Yoshifumi
  • Shimizu, Manami
  • Ezaki, Naofumi
  • Matsuzawa, Tomohiro

Abstract

An oil-based inkjet ink is disclosed that contains a colorant, an oil-soluble resin that is an acrylic-based polymer having a side chain containing a polydimethylsiloxane structure, and a non-aqueous solvent. A method for producing an oil-based inkjet ink is also disclosed.

IPC Classes  ?

  • C09D 11/36 - Inkjet printing inks based on non-aqueous solvents
  • C09D 11/328 - Inkjet printing inks characterised by colouring agents characterised by dyes
  • C09D 11/322 - Pigment inks
  • C09D 11/326 - Pigment inks characterised by the pigment dispersant

92.

Inkjet printing apparatus with ink ejection timing correcting function

      
Application Number 16357859
Grant Number 10710363
Status In Force
Filing Date 2019-03-19
First Publication Date 2019-10-03
Grant Date 2020-07-14
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Takemoto, Kazuhiro

Abstract

An inkjet printing apparatus includes: a roller configured to rotate in synchronization with the print medium being conveyed; an encoder configured to output a pulse signal depending on a rotation angle of the roller; and a controller. The controller is configured to: perform an off-center information obtaining processing of driving the inkjet head to print a test pattern including dots arranged in a conveyance direction of the print medium and calculating an off-center information of the roller based on positions of the dots in the printed test pattern; and in the printing operation, correct the ejection timing of the ink by the inkjet head determined based on the pulse signal outputted from the encoder, based on the off-center information calculated in the off-center information obtaining processing.

IPC Classes  ?

  • B41J 2/045 - Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
  • B41J 2/21 - Ink jet for multi-colour printing
  • B41J 11/00 - Devices or arrangements for supporting or handling copy material in sheet or web form
  • B41J 29/38 - Drives, motors, controls, or automatic cut-off devices for the entire printing mechanism
  • B41J 29/393 - Devices for controlling or analysing the entire machine

93.

Meandering control device for web

      
Application Number 16359556
Grant Number 10780722
Status In Force
Filing Date 2019-03-20
First Publication Date 2019-10-03
Grant Date 2020-09-22
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Inoue, Hideaki

Abstract

A meandering control device includes: a detector configured to detect a position of an edge of a web being conveyed in a width direction of the web; a corrector configured to correct a position of the web being conveyed in the width direction; and a controller including a digital filter configured to perform filtering on a position signal indicating the position of the edge detected by the detector to attenuate a noise component. The controller is configured to drive the corrector to correct the position of the web in the width direction based on the position signal after the filtering.

IPC Classes  ?

  • B41J 15/04 - Supporting, feeding, or guiding devices; Mountings for web rolls or spindles
  • B41J 13/00 - Devices or arrangements specially adapted for supporting or handling copy material in short lengths, e.g. sheets
  • B65H 23/038 - Controlling transverse register of web by rollers
  • B41J 15/16 - Means for tensioning or winding the web

94.

Ink jet printing apparatus

      
Application Number 16366417
Grant Number 11040559
Status In Force
Filing Date 2019-03-27
First Publication Date 2019-10-03
Grant Date 2021-06-22
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Takakusa, Tadashi

Abstract

An ink jet printing apparatus includes: a conveying mechanism that moves at least one of a print medium and an ink jet head in a predetermined conveyance direction; a height information detecting unit that obtains information related to the height of the surface of the print medium; a moving mechanism that moves at least one of the ink jet head and the print medium upward and downward in the vertical direction; and a control unit that controls the ink jet head while sequentially controlling the moving mechanism accompanying conveyance by the conveying mechanism, based on the information related to the height which is detected by the height information detecting unit, thereby maintaining the distance between the print medium and the ink jet head to be within a range which is set in advance, to perform a printing process on the print medium.

IPC Classes  ?

  • B41J 2/045 - Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
  • B41J 25/308 - Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface with print gap adjustment mechanisms
  • B41J 19/14 - Character- or line-spacing mechanisms with means for effecting line or character spacing in either direction
  • B29C 64/112 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
  • B41J 3/407 - Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material

95.

Ink jet printing apparatus

      
Application Number 16359635
Grant Number 10766276
Status In Force
Filing Date 2019-03-20
First Publication Date 2019-10-03
Grant Date 2020-09-08
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Matsunaga, Katsuhiko

Abstract

An inkjet printing apparatus that performs printing by ejecting ink from an ink jet head onto a print medium includes a drying unit for drying a liquid which is contained in the print medium, a table on which the print medium is placed; and a gas flow generating unit for generating a gas flow in a space which is formed between the table and a surface of the print medium toward the side of the table.

IPC Classes  ?

  • B41J 11/00 - Devices or arrangements for supporting or handling copy material in sheet or web form
  • B41J 29/377 - Cooling or ventilating arrangements
  • B41J 29/38 - Drives, motors, controls, or automatic cut-off devices for the entire printing mechanism

96.

Management server

      
Application Number 16353528
Grant Number 11276018
Status In Force
Filing Date 2019-03-14
First Publication Date 2019-09-19
Grant Date 2022-03-15
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Oi, Yukihiro

Abstract

A management server includes a printing-device management unit that receives consumables information indicating respective usage statuses of a plurality of consumables being used by a printing device from one or more printing devices, an order-timing estimating unit that calculates an estimated order timing at which each of the consumables is to be ordered based on a temporal variation in the usage statuses of each of the consumables, and a consumables-order planning unit that, when there are a plurality of estimated order timings within a predetermined period for one printing device, or when there are a plurality of estimated order timings within a predetermined period for a plurality of printing devices included in a certain neighboring area, changes and outputs a price of consumables associated with the estimated order timings corresponding to delivery statuses of the consumables.

IPC Classes  ?

  • G06Q 10/06 - Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
  • G06Q 30/06 - Buying, selling or leasing transactions
  • G03G 15/00 - Apparatus for electrographic processes using a charge pattern
  • G06K 15/00 - Arrangements for producing a permanent visual presentation of the output data

97.

Printing apparatus for web

      
Application Number 16277423
Grant Number 10525752
Status In Force
Filing Date 2019-02-15
First Publication Date 2019-08-29
Grant Date 2020-01-07
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Wakabayashi, Mamoru

Abstract

A controller: generates a first corrected pulse signal by correcting a received first pulse signal or generate a second corrected pulse signal by correcting a received second pulse signal, based on a difference value between a first rotation cycle of a first roller and a second rotation cycle of a second roller such that a difference between a first pulse cycle of the received first pulse signal and a second pulse cycle of the received second pulse signal is reduced; upon generating the first corrected pulse signal, controls first print timings in respective first print mechanisms of a first printer based on the generated first corrected pulse signal; and upon generating the second corrected pulse signal, controls second print timings in respective second print mechanisms of a second printer based on the generated second corrected pulse signal.

IPC Classes  ?

  • B41J 2/175 - Ink supply systems
  • B41J 29/393 - Devices for controlling or analysing the entire machine
  • B41J 3/42 - Two or more complete typewriters coupled for simultaneous operation
  • B41J 3/60 - Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for printing on both faces of the printing material
  • B41J 11/00 - Devices or arrangements for supporting or handling copy material in sheet or web form
  • B41J 11/42 - Controlling
  • B41J 15/16 - Means for tensioning or winding the web

98.

Ink jet printing apparatus

      
Application Number 16257808
Grant Number 10759170
Status In Force
Filing Date 2019-01-25
First Publication Date 2019-08-01
Grant Date 2020-09-01
Owner RISO KAGAKU CORPORATION (Japan)
Inventor
  • Yamamoto, Hirotaka
  • Nakata, Ami

Abstract

The ink jet printing apparatus includes: an ink jet head having a nozzle row in which a plurality of nozzles for ejecting ink are arranged and a nozzle guard with an opening at a portion corresponding to the nozzle row, provided at a position via a gap with respect to an ink ejection surface of the nozzle row; a sheet shaped absorbing member having a size that covers a range of the opening of the nozzle guard; and a capping unit that presses the absorbing member onto the opening of the nozzle guard.

IPC Classes  ?

  • B41J 2/165 - Prevention of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
  • B41J 2/14 - Structure thereof
  • B41J 2/17 - Ink jet characterised by ink handling
  • B41J 2/175 - Ink supply systems
  • B41J 2/185 - Ink-collectors; Ink-catchers

99.

Image forming apparatus performing print processing in color or black-and-white print modes by analyzing pixel information of image data generated when a print job is input

      
Application Number 16193394
Grant Number 10528854
Status In Force
Filing Date 2018-11-16
First Publication Date 2019-05-30
Grant Date 2020-01-07
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Masuda, Shigeru

Abstract

A print-mode determination processor determines the print mode of a print job that is described in a page description language (PDL) and that has a print mode set to an automatic determination mode, using image data generated for a preflight check by a preflight checker that performs a preflight check of image data of a print job. The image data for a preflight check has a resolution lower than that of thumbnail image data and sufficient to determine whether to set a color print mode or a black-and-white print mode, such as presence or absence of a color part in the image data of the print job or the degree of the color part, so that the time required for generating and analyzing image data for print mode determination can be shortened.

IPC Classes  ?

  • G06K 15/00 - Arrangements for producing a permanent visual presentation of the output data
  • G06K 15/02 - Arrangements for producing a permanent visual presentation of the output data using printers
  • G06F 3/12 - Digital output to print unit
  • G06K 15/10 - Arrangements for producing a permanent visual presentation of the output data using printers by matrix printers

100.

Ink jet head module

      
Application Number 16203147
Grant Number 10576747
Status In Force
Filing Date 2018-11-28
First Publication Date 2019-05-30
Grant Date 2020-03-03
Owner RISO KAGAKU CORPORATION (Japan)
Inventor Kubota, Mutsumi

Abstract

The ink jet head module includes: at least one ink jet head that ejects ink; an ink path that supplies ink to the ink jet head; a joint for connecting the ink path and a fitting portion of a printing apparatus main body; a handle which is operated according to attachment and detachment of the ink jet head module to the printing apparatus main body; and a fitting mechanism that inserts and extracts the fitting portion of the printing apparatus main body into and out from the joint in response to movement of the handle.

IPC Classes  ?

  • B41J 2/175 - Ink supply systems
  • B41J 25/34 - Bodily-changeable print heads or carriages
  • B41J 2/165 - Prevention of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
  • B41J 29/02 - Framework
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