An optical connector includes a ferrule, a ferrule holder, a housing, and an anti-rotation structure. The ferrule includes a through hole that extends in a first direction and holds an optical fiber inside the through hole. The anti-rotation structure is provided inside the housing and outside the ferrule, and prevents rotation of the ferrule about an axis extending in the first direction with the ferrule holder. The ferrule holder includes a tubular holder main body that accommodates the ferrule therein, and a flange part that protrudes outward from the outer periphery of the holder main body in a second direction that intersects the first direction. The flange part includes a configuration to fit with the anti-rotation structure. A center of the flange part in the first direction is located in a central region of the ferrule in the first direction.
NATIONAL UNIVERSITY CORPORATION YOKOHAMA NATIONAL UNIVERSITY (Japon)
Inventeur(s)
Okuno, Kazuki
Higashino, Takahiro
Tawarayama, Hiromasa
Majima, Masatoshi
Masumura, Haruki
Kuroda, Yoshiyuki
Mitsushima, Shigenori
Abrégé
A porous metal body which has a three-dimensional network structure, and which is provided with a skeleton that forms the three-dimensional network structure and a cover layer that has fine pores and covers the skeleton. The three-dimensional network structure is provided with support column parts and a plurality of node parts that connect the support column parts; the skeleton contains a first metal that has alkali resistance; the fine pores have an average pore diameter of from 10 nm to 1 µm (inclusive); the cover layer contains a second metal that has alkali resistance, and may contain an alkali-soluble metal; and the content ratio of the alkali-soluble metal is from 0% by mass to 30% by mass (inclusive) based on the total mass of the skeleton and the cover layer.
C22C 19/03 - Alliages à base de nickel ou de cobalt, seuls ou ensemble à base de nickel
C22F 1/00 - Modification de la structure physique des métaux ou alliages non ferreux par traitement thermique ou par travail à chaud ou à froid
C22F 1/10 - Modification de la structure physique des métaux ou alliages non ferreux par traitement thermique ou par travail à chaud ou à froid du nickel ou du cobalt ou de leurs alliages
NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY (Japon)
Inventeur(s)
Awazu, Tomoyuki
Majima, Masatoshi
Tsubokura, Mitsutaka
Oishi, Tetsuo
Abrégé
A method for separating metal components from a treatment material containing a silicate and metal elements includes: a reaction step of reacting the treatment material and a molten alkali hydroxide in which bubbles due to water vapor derived from water are generated by heating a hydroxide of an alkali metal or an alkaline-earth metal and the water in a state where the hydroxide and the water coexist, to obtain a reaction product; and a first precipitation step of dissolving the reaction product of the treatment material and the molten alkali hydroxide after the reaction step in water, thereby generating a precipitate containing the metal elements.
C22B 59/00 - Obtention des métaux des terres rares
C22B 3/06 - Extraction de composés métalliques par voie humide à partir de minerais ou de concentrés par lixiviation dans des solutions inorganiques acides
C22B 3/12 - Extraction de composés métalliques par voie humide à partir de minerais ou de concentrés par lixiviation dans des solutions inorganiques alcalines
C22B 3/26 - Traitement ou purification de solutions, p.ex. de solutions obtenues par lixiviation par extraction liquide-liquide utilisant des composés organiques
C22B 3/42 - Traitement ou purification de solutions, p.ex. de solutions obtenues par lixiviation par extraction utilisant l'échange d'ions
C25C 3/26 - Production, récupération ou affinage électrolytique de métaux par électrolyse de bains fondus du titane, du zirconium, de l'hafnium, du tantale ou du vanadium
C25C 3/30 - Production, récupération ou affinage électrolytique de métaux par électrolyse de bains fondus du manganèse
C25C 3/34 - Production, récupération ou affinage électrolytique de métaux par électrolyse de bains fondus des métaux non prévus dans les groupes
4.
COMPLEX CARBONITRIDE POWDER AND METHOD FOR PRODUCING SAME
A complex carbonitride powder contains Ti as a main component element and at least one additional element selected from the group consisting of Zr, Hf, V, Nb, Ta, Cr, Mo, W, Al, and Si. The complex carbonitride powder includes a plurality of complex carbonitride particles containing Ti and the additional element. The plurality of complex carbonitride particles include a plurality of homogeneous composition particles where average concentrations of Ti and the additional element in each complex carbonitride particle have a difference in a range of greater than or equal to -5 atom% and less than or equal to 5 atom% from average concentrations of Ti and the additional element in the whole complex carbonitride powder. A cross-sectional area of the homogeneous composition particles is greater than or equal to 90% of a cross-sectional area of the complex carbonitride particles 1p.
C22C 29/02 - Alliages à base de carbures, oxydes, borures, nitrures ou siliciures, p.ex. cermets, ou d'autres composés métalliques, p.ex. oxynitrures, sulfures à base de carbures ou de carbonitrures
A drive circuit and an optical network unit capable of suppressing temperature dependency in a circuit transmitting an optical signal and realizing satisfactory communication are provided. The drive circuit includes a bias current supply circuit for supplying a bias current to a light-emitting element for transmitting an optical signal and a modulated current supply circuit for supplying to the light-emitting element, a modulated current having magnitude in accordance with a logical value of data to be transmitted, and has a first path through which the bias current flows, a second path including a path for supplying the modulated current to the light-emitting element from the modulated current supply circuit, through which a current returns to the bias current supply circuit through the modulated current supply circuit from the bias current supply circuit without going through the light-emitting element when the bias current flows, and a third path which is joined to the second path in the modulated current supply circuit and has an adjusting resistance before a junction, through which a current flows through the adjusting resistance to the bias current supply circuit when the bias current flows.
H01S 5/062 - Dispositions pour commander les paramètres de sortie du laser, p.ex. en agissant sur le milieu actif en faisant varier le potentiel des électrodes
A power cable includes a steel pipe coupled to a reference potential node, three transmission cables within the steel pipe and respectively including a conductor to transmit three-phase alternating current power, and a return cable within the steel pipe and coupled to the reference potential node. Each of the three transmission cables includes a first insulating layer covering the conductor, a metal layer covering the first insulating layer, and a second insulating layer covering the metal layer. The three transmission cables are twisted around a periphery of the return cable along a longitudinal direction of the return cable, and the metal layer is coupled to the reference potential node.
Pregrouted PC steel (10) that has a 19-wire PC steel wire strand (1), a pregrouted layer (2) disposed on the outer circumference thereof, and a sheath (3) covering the outer circumference of the pregrouted layer (2), is filled with fill resin (4) between each steel wire (side wire) (1b, 1c, 1d). Because the fill resin (4) does not exude to the pregrouted layer (2) side before tensioning of the PC steel wire strand (1), the tensioning work of the PC steel wire strand (1) is not impeded due to the hardening of the pregrouted layer (2). Meanwhile, because the gaps between the steel wires are reduced when the PC steel wire strand (1) is under tension, due to the reduction, for the first time the fill resin (4) flows out (exudes) from between the steel wires into the pregrouted layer (2) and then hardens the same.
E04G 21/12 - Montage d'éléments d'armature; Application de la précontrainte
B28B 23/04 - Aménagements spécialement adaptés à la fabrication d'objets façonnés avec des éléments complètement ou partiellement enrobés dans le matériau de moulage dans lesquels les éléments enrobés sont des renforcements les éléments enrobés étant sous tension
E04C 5/08 - Eléments spécialement adaptés pour être utilisés dans des constructions précontraintes
Provided is a rubber composition which can be suitably used in air springs for vehicle use used in cold climates and which has excellent ozone resistance (measured by the dynamic ozone deterioration test) and excellent cold resistance. A cold- resistant rubber composition contains butadiene rubber, chloroprene rubber, and natural rubber or natural rubber part of which is replaced with at least one specific rubber selected from the group consisting of styrene-butadiene rubber and nitrile rubber, in which the content of the butadiene rubber is 10 to 35 parts by mass, the content of the chloroprene rubber is 50 to 75 parts by mass, and the content of the natural rubber or the total content of the natural rubber and the specific rubber is 10 to 35 parts by mass, relative to 100 parts by mass of the total of the rubbers, and in the case where the rubber composition contains the specific rubber, the content of the specific rubber is preferably 10% to 60% by mass relative to the total content of the natural rubber and the specific rubber. An air spring for railway vehicle use is formed by using the cold-resistant rubber composition.
C08L 11/00 - Compositions contenant des homopolymères ou des copolymères du chloroprène
C08L 7/00 - Compositions contenant du caoutchouc naturel
C08L 9/00 - Compositions contenant des homopolymères ou des copolymères d'hydrocarbures à diènes conjugués
F16F 1/36 - Ressorts faits d'un matériau à friction intérieure élevée
F16F 9/04 - Ressorts, amortisseurs de vibrations, amortisseurs de chocs ou amortisseurs de mouvement de structure similaire, utilisant un fluide ou moyen équivalent comme agent d'amortissement utilisant un gaz uniquement dans une chambre à paroi flexible
9.
PREGROUTED PC STEEL MATERIAL AND METHOD FOR HARDENING PREGROUT LAYER THEREOF
Provided is a pregrouted PC steel material comprising a PC steel stranded wire composed of a plurality of steel wires, a pregrout layer disposed on the outer periphery of the PC steel stranded wire so as to accommodate the PC steel stranded wire, a sheath covering the outer periphery of the pregrout layer, and a capsule including a pregrout-hardening agent and a film with which the agent is covered, the capsule being interposed among the steel wires constituting the PC steel stranded wire. The capsule has a strength such that the capsule is not broken before tensioning the PC steel stranded wire but is broken by a tensile force during the tensioning. Also provided is a method for hardening the pregrout layer.
There are provided an optical transceiver, an optical network unit, and an optical transceiver control method that control the operating state of the optical transceiver and reduce the number of terminals of the optical transceiver. An optical transceiver includes: a transmitting and receiving unit that transmits and receives optical signals and that has three or more states for transmission or reception of the optical signals, the states transitioning in sequence; a terminal for receiving a voltage or current as operation instruction information indicating in which one of the states operation is to be performed; and a determining unit for determining one of the states indicated by the operation instruction information, based on a magnitude of the voltage or current received by the terminal. The transmitting and receiving unit operates in the one of the states determined by the determining unit.
H04B 10/00 - Systèmes de transmission utilisant des ondes électromagnétiques autres que les ondes hertziennes, p.ex. les infrarouges, la lumière visible ou ultraviolette, ou utilisant des radiations corpusculaires, p.ex. les communications quantiques
There are provided a drive circuit and an optical network unit that can reduce a reactive current which does not contribute to the drive of a light-emitting device for transmitting an optical signal. The drive circuit includes a bias current supply circuit for supplying a bias current to a light-emitting device for transmitting an optical signal, the light-emitting device included in a light-emitting circuit; and a modulation current supply circuit for supplying a modulation current of a magnitude according to a logical value of data to be transmitted, to the light-emitting device. The modulation current supply circuit includes a differential drive circuit for switching whether to supply a current to the light-emitting device, according to the logical value of the data; and a termination resistor connected between differential outputs of the differential drive circuit. The differential drive circuit and the light-emitting circuit are DC-coupled to each other, and power supply of the current supplied to the light-emitting device by the differential drive circuit is supplied from the light-emitting circuit.
H03K 17/78 - Commutation ou ouverture de porte électronique, c. à d. par d'autres moyens que la fermeture et l'ouverture de contacts caractérisée par l'utilisation de composants spécifiés par l'utilisation, comme éléments actifs, de dispositifs opto-électroniques, c. à d. des dispositifs émetteurs de lumière et des dispositifs photo-électriques couplés électriquement ou optiquement
An optical fiber cutter is provided, which can improve workability when performing an operation while either being held with a hand or placed on a workbench. The optical fiber cutter 1 comprises a cutter base 3 and a cutter lid 4 attached openably and closably to the cutter base 3. A slider 8 having a blade member for incising an optical fiber is attached to the cutter base 3 so as to be movable widthwise. A switching plate 15 is attached to a rear end part of the cutter base 3, while a switcher 16 is provided on the outer surface side of the switching plate 15. When the switcher 16 is at a first position, the cutter lid 4 engages a stopper, thereby attaining an opening angle of 35°. When the switcher 16 is at a second position, the engagement between the cutter lid 4 and the stopper is released, whereby the cutter lid 4 attains an opening angle of 70°.
G02B 6/00 - OPTIQUE ÉLÉMENTS, SYSTÈMES OU APPAREILS OPTIQUES - Détails de structure de dispositions comprenant des guides de lumière et d'autres éléments optiques, p.ex. des moyens de couplage
An optical fiber cleaver capable of precisely counting and indicating the number of cuts of an optical fiber is provided. An optical fiber cleaver 1 includes a cleaver base body 3 having a holder guide portion 7 which positions a fiber holder 6 holding an optical fiber 2, and a cleaver lid body 4 attached to the cleaver base body 3 to be openable and closable. A slider having a blade member piercing the optical fiber 2 is attached to the cleaver base body 3 to be movable in a width direction. A pawl member 20 is arranged in one sidewall of the holder guide portion 7. Further, a count indication mechanism 21 which counts and indicates the number of times the slider returns to an initial position is provided in the cleaver base body 3. The optical fiber cleaver 1 is configured to enable a counting operation of the count indication mechanism 21 only when the fiber holder 6 is set in the holder guide portion 7 such that the pawl member 20 is pressed.
G02B 6/00 - OPTIQUE ÉLÉMENTS, SYSTÈMES OU APPAREILS OPTIQUES - Détails de structure de dispositions comprenant des guides de lumière et d'autres éléments optiques, p.ex. des moyens de couplage
14.
REDOX FLOW BATTERY AND METHOD OF OPERATING THE SAME
A redox flow battery (1) in which a positive electrode electrolyte stored in a positive electrode tank (106) and a negative electrode electrolyte stored in a negative electrode tank (107) are supplied to a battery element (100) to charge and discharge the battery is provided, the positive electrode electrolyte in the redox flow battery (1) containing a Mn ion as a positive electrode active material, the negative electrode electrolyte containing at least one of a Ti ion, a V ion, and a Cr ion as a negative electrode active material, in which the redox flow battery (1) includes a negative- electrode-side introduction duct (10) in communication with inside of the negative electrode tank (107) from outside thereof, for introducing oxidizing gas into the negative electrode tank (107), and a supply mechanism (11) for supplying the oxidizing gas into the negative electrode tank (107) via the negative-electrode-side introduction duct (10).
H01M 8/20 - PROCÉDÉS OU MOYENS POUR LA CONVERSION DIRECTE DE L'ÉNERGIE CHIMIQUE EN ÉNERGIE ÉLECTRIQUE, p.ex. BATTERIES Éléments à combustible; Leur fabrication Éléments à combustible indirects, p.ex. éléments à combustible avec un couple REDOX irréversible
A magnesium alloy material with excellent corrosion resistance is provided. The magnesium alloy material comprises a magnesium alloy containing 7.3%-16 % by mass Al. When the Al content for the whole magnesium alloy material is x% by mass, the area with an Al content of 0.8x%-1.2x% by mass is 50% by area or more, the area with an Al content of 1.4x% by mass min. is 17.5% by area max., and there is substantially no area with an Al content of 4.2% by mass max. This magnesium alloy material can effectively prevent the occurrence of localized corrosion and the progression of said corrosion, as a result of the low variation in Al concentration and the lack of areas with extremely low Al content. Accordingly, the magnesium alloy material has excellent corrosion resistance compared to a die cast material with the same overall Al content. The magnesium alloy material can be used for plate material, coil material comprising rolled long plate material, and formed articles.
C22C 23/04 - Alliages à base de magnésium avec le zinc ou le cadmium comme seconds constituants majeurs
C22C 23/06 - Alliages à base de magnésium avec un métal du groupe des terres rares comme second constituant majeur
C22F 1/00 - Modification de la structure physique des métaux ou alliages non ferreux par traitement thermique ou par travail à chaud ou à froid
C22F 1/06 - Modification de la structure physique des métaux ou alliages non ferreux par traitement thermique ou par travail à chaud ou à froid du magnésium ou de ses alliages
A fiber cleaver is provided in which a circular blade can be efficiently used without increasing the workload imposed on the worker. The fiber cleaver includes a main body supporting a slider such that the slider is movable in the front-back direction. A disc- shaped circular blade configured to make a flaw in an optical fiber is rotatably provided to the slider. A columnar protrusion stands on a base of the main body. An engaging member engaging with a gear that rotates together with the circular blade is provided at the upper end of the columnar protrusion. The columnar protrusion is connected to an engaging member, which engages with the slider, with a spring interposed therebetween. The base has first to third recessed portions each anchoring the engaging member. The angle of rotation of the circular blade is changed among three angles with the position where the engaging member is anchored.
G02B 6/00 - OPTIQUE ÉLÉMENTS, SYSTÈMES OU APPAREILS OPTIQUES - Détails de structure de dispositions comprenant des guides de lumière et d'autres éléments optiques, p.ex. des moyens de couplage
Disclosed is a case for accommodating a fiber cleaver, the case being capable of preventing the fiber cleaver from being damaged. A case 1 accommodating a fiber cleaver includes a base 30 and a lid 32 such that the lid is openably and closably provided for the base 30 in an integrated fashion. The base 30 of the case has therein a positioning space 38 for the cleaver on its inner bottom surface, the positioning space 38 positioning a main body 5 included in a cleaver unit 3. Latches 39A and 39B protruding inwardly in the base 30 of the case are arranged on positioning walls 35A and 35B defining part of the positioning space 38 for the cleaver. The latches 39A and 39B have a function of retaining a support 8 of the main body 5 of the cleaver in a direction along the height of the base 30 of the case. The latch 39A further has a function of retaining a slider 15 included in the cleaver unit 3 in a sliding direction.
G02B 6/00 - OPTIQUE ÉLÉMENTS, SYSTÈMES OU APPAREILS OPTIQUES - Détails de structure de dispositions comprenant des guides de lumière et d'autres éléments optiques, p.ex. des moyens de couplage
G02B 6/25 - Préparation des extrémités des guides de lumière pour le couplage, p.ex. découpage
A redox flow (RF) battery capable of improving an energy density is provided. An RF battery 100 performs charge and discharge by supplying a positive electrode electrolyte and a negative electrode electrolyte to a positive electrode cell 102 and a negative electrode cell 103, respectively. Each of the positive electrode electrolyte and the negative electrode electrolyte contains a vanadium (V) ion as active material. At least one of the positive electrode electrolyte and the negative electrode electrolyte further contains another metal ion, for example, a metal ion such as a manganese ion that exhibits a higher redox potential than a V ion or a metal ion such as a chromium ion that exhibits a lower redox potential than a V ion. Even in cases where the RF battery 100 is charged until the state of charge reaches nearly 100%, side reactions such as generation of oxygen gas or hydrogen gas due to water decomposition and oxidation degradation of an electrode can be suppressed since the above-mentioned another metal ion contained together with the V ion is oxidized or reduced in the late stage of charge. Since the utilization rate of the V ion in the electrolyte can be increased by enhancing the state of charge, the energy density of the RF battery 100 can be improved as compared to the conventional RF batteries.
H01M 8/18 - PROCÉDÉS OU MOYENS POUR LA CONVERSION DIRECTE DE L'ÉNERGIE CHIMIQUE EN ÉNERGIE ÉLECTRIQUE, p.ex. BATTERIES Éléments à combustible; Leur fabrication Éléments à combustible à régénération, p.ex. batteries à flux REDOX ou éléments à combustible secondaires
A redox flow battery having a high electromotive force and capable of suppressing generation of a precipitation is provided. In a redox flow battery 100, a positive electrode electrolyte and a negative electrode electrolyte are supplied to a battery cell including a positive electrode 104, a negative electrode 105, and a membrane 101 interposed between the electrodes 104 and 105, to charge and discharge the battery. The positive electrode electrolyte contains a manganese ion, or both of a manganese ion and a titanium ion. The negative electrode electrolyte contains at least one type of metal ion selected from a titanium ion, a vanadium ion, a chromium ion, a zinc ion, and a tin ion. The redox flow battery 100 can suppress generation of a precipitation of MnO2, and can be charged and discharged well by containing a titanium ion in the positive electrode electrolyte, or by being operated such that the positive electrode electrolyte has an SOC of not more than 90%. In addition, the redox flow battery 100 can have a high electromotive force equal to or higher than that of a conventional vanadium-based redox flow battery.
There are provided a method for producing a magnesium alloy sheet having good press formability and a magnesium alloy coil stock obtained by coiling the magnesium alloy sheet. After a raw material sheet 1 composed of a magnesium alloy is preheated to 280°C or less, the heated raw material sheet 1 is rolled with a reduction roll 3 and the obtained long rolled sheet is coiled. The surface temperature of the reduction roll 3 is set to be 230°C or more and 290°C or less. The preheating, rolling, and coiling are repeatedly performed in a continuous manner. By setting both the temperatures of the raw material sheet 1 and reduction roll 3 to be certain temperatures, the rolling property of the raw material sheet can be improved and the raw material sheet can be properly rolled in a continuous manner. In addition, a variation in temperature in the width direction of the reduction roll can be suppressed and uniform rolling can be performed, resulting in the production of a long magnesium alloy sheet. In this magnesium alloy sheet, working strain is sufficiently introduced by rolling and an increase in the size of crystal grains is suppressed. Thus, the magnesium alloy sheet has good press formability. Furthermore, a coil stock in which telescoping is not easily caused and that has good appearance is obtained.
B21B 3/00 - Laminage des matériaux faits d'alliages particuliers dans la mesure où la nature de l'alliage exige ou permet l'emploi de méthodes ou de séquences particulières
B21B 27/08 - Lubrification, refroidissement ou chauffage des cylindres intérieurement
B21B 45/00 - Dispositifs pour le traitement de surface des pièces spécialement combinés aux laminoirs, disposés dans les laminoirs, ou adaptés pour être utilisés avec les laminoirs
Provided is an optical fiber coating removal device capable of carrying out coating removal favorably and decreasing the tensile force required for coating removal without there being any problems due to the ingress of water. In the optical fiber coating removal device (11), an optical fiber securing unit (13) is separated from a coating removal device body (12) in a state in which a coating (1b) is cut and heated by a coating removal unit (31), and a glass fiber (1a) is thus withdrawn from the coating (1b). The coating removal unit (31) is provided with a heater supporting member (43) on which a heater (42) is mounted. The heater supporting member (43) is received in a receiving recess (51) formed in a housing (12a). An insulation space (55) is formed between the receiving recess (51) and the heater supporting member (43). A side surface of the heater supporting member (43) comes into contact with the internal surface of a sidewall (51b) of the receiving recess (51) by way of a lateral rib (61) formed in the heater supporting member (43), to seal the insulation space (55).
G02B 6/00 - OPTIQUE ÉLÉMENTS, SYSTÈMES OU APPAREILS OPTIQUES - Détails de structure de dispositions comprenant des guides de lumière et d'autres éléments optiques, p.ex. des moyens de couplage
A gas decomposition apparatus having any one of the following structures: 1) a structure wherein an anode and a cathode on a solid electrolyte layer each have extended regions; the extended regions of the anode and those of the cathode are alternately extended to have a gap between the anode and the cathode; the cathode is higher in electric resistance than the anode; and a cathode electroconductive region connected electroconductively to a power source and made of an electroconductive material is extended in a direction crossing the direction in which the extended regions of the cathode are extended, thereby connecting the extended regions of the cathode electroconductively to each other; and (2) a structure which has an electroconductor layer through which the negative electrode of a power source is electroconductively connected to a cathode; and which is a structure wherein the cathode is laminated on the electroconductor layer to contact the layer, laminates each composed of a solid electrolyte layer and an anode are positioned on the cathode to have a gap between any adjacent two of the laminates, and the anodes are electroconductively connected to the positive electrode of the power source.
B01D 53/74 - Procédés généraux pour l'épuration des gaz résiduaires; Appareils ou dispositifs spécialement adaptés à ces procédés
B01D 53/94 - Epuration chimique ou biologique des gaz résiduaires des gaz d'échappement des moteurs à combustion par des procédés catalytiques
B01J 19/08 - Procédés utilisant l'application directe de l'énergie ondulatoire ou électrique, ou un rayonnement particulaire; Appareils à cet usage
F01N 3/08 - Silencieux ou dispositifs d'échappement comportant des moyens pour purifier, rendre inoffensifs ou traiter les gaz d'échappement pour rendre les gaz d'échappement inoffensifs
23.
METHOD OF PRODUCED WATER TREATMENT, METHOD OF WATER REUSE, AND SYSTEMS FOR THESE METHODS
A method of produced water treatment in an in-situ recovery method of producing bitumen from oil sand, the method has the steps of: separating bitumen from bitumen-mixed fluid so as to leave produced water, the bitumen- mixed fluid having been recovered from the oil sand wells; and filtering the produced water via a microfiltration membrane made of polytetrafluoroethylene.
C10G 1/04 - Production de mélanges liquides d'hydrocarbures à partir de schiste bitumineux, de sable pétrolifère ou de matières carbonées solides non fusibles ou similaires, p.ex. bois, charbon par extraction
24.
PROTECTION SLEEVE, MANUFACTURING APPARATUS FOR PROTECTION SLEEVE, AND MANUFACTURING METHOD FOR PROTECTION SLEEVE
The object of the invention is to prevent bending of an optical fiber and dislodging of a reinforcing rod. A protection sleeve includes a heat shrinkable tube and an adhesive tube and a reinforcing rod housed inside the heat shrinkable tube. The heat shrinkable tube, the adhesive tube, and the reinforcing rod are adhered together in a section spanning across a lengthwise section of the heat shrinkable tube. A protection sleeve manufacturing apparatus includes a jig for securing protection sleeves and a heating device. The jig is contrived to hold a plurality of protection sleeves (each of which includes a heat shrinkable tube and an adhesive tube and a reinforcing rod housed inside the heat shrinkable tube) in a parallel arrangement with spaces in-between. The heating device includes a plurality of hot air vents, a means of setting a distance between the jig and the hot air vents to a first distance, and a means of setting the jig and the hot air vents to a second distance that is closer than the first distance.
A powder coating composition for PC strand coating which, when used for the coating of a PC strand, can advantageously form a coating film having an even thickness at low cost without causing uneven thickness or stringness is disclosed. The powder coating composition of this invention for PC strand coating is characterized by having a melt viscosity of 3,000-15,000 poise.
C09D 163/00 - Compositions de revêtement à base de résines époxy; Compositions de revêtement à base de dérivés des résines époxy
B05D 1/24 - Application de matériaux en particules
B05D 7/20 - Procédés, autres que le flocage, spécialement adaptés pour appliquer des liquides ou d'autres matériaux fluides, à des surfaces particulières, ou pour appliquer des liquides ou d'autres matériaux fluides particuliers à des fils
B05D 7/24 - Procédés, autres que le flocage, spécialement adaptés pour appliquer des liquides ou d'autres matériaux fluides, à des surfaces particulières, ou pour appliquer des liquides ou d'autres matériaux fluides particuliers pour appliquer des liquides ou d'autres matériaux fluides particuliers
An optical fiber cutting device is configured so that a disk-like blade member is moved in a state, in which the blade member is pushed against a glass fiber part of an optical fiber, to form a flaw on a surface of the glass fiber part. The blade member is turned by a feed roller in synchronization with a movement operation of the blade member that rotates by a contact friction force generated when the blade member is put into contact with a contact member fixedly provided halfway a movement path of the blade member.
An optical connector in which the housing property into a cabinet or the like can be enhanced because of the compacification, and which can solve problems of the increase of the bending loss of an optical fiber, the breakage, and the like is obtained. In an optical connector 1 which houses and holds a fusion spliced portion 13 where a short optical fiber 5 previously fitted to an optical connector ferrule 7 is fusion-spliced with a coated optical fiber 3, one end of a protection sleeve 15 which armors the fusion spliced portion 13 is coupled to the optical connector ferrule 7. As a result, the length of the protection sleeve 15 which covers the fusion spliced portion 13 so that the fusion spliced portion 13 is positioned at the middle can be set with reference to an end portion of the optical connector ferrule 7. Therefore, the protection sleeve 15 can be shortened, and compactification of the optical connector 1 can be realized.
The present invention relates to a holder for housing a connector plug having an optical connector ferrule with a short optical fiber. In the known art, there is a concern that the optical connector ferrule or the short optical fiber can be broken during handling needed until the ferrule is set to a fusing splicing apparatus. The present invention addresses this by providing a holder capable of protecting the ferrule with a short optical fiber from external shock. The inventive holder is constructed to position the short optical fiber extended from the ferrule and to be fitted to a fusion splicing apparatus that fusion-splices the short optical fiber and other coated optical fiber.
The present invention relates to a holder for housing a connector plug having an optical connector ferrule with a short optical fiber. In the known art, there is a concern that the optical connector ferrule or the short optical fiber can be broken during handling needed until the ferrule is set to a fusing splicing apparatus. The present invention addresses this by providing a holder capable of protecting the ferrule with a short optical fiber from external shock. The inventive holder is constructed to position the short optical fiber extended from the ferrule and to be fitted to a fusion splicing apparatus that fusion-splices the short optical fiber and other coated optical fiber.
G02B 6/255 - Epissage des guides de lumière, p.ex. par fusion ou par liaison
G02B 6/38 - Moyens de couplage mécaniques ayant des moyens d'assemblage fibre à fibre
30.
OPTICAL FIBER TEMPERATURE DISTRIBUTION MEASURING APPARATUS, OPTICAL FIBER TEMPERATURE DISTRIBUTION MEASURING METHOD AND OPTICAL FIBER TEMPERATURE DISTRIBUTION MEASURING SYSTEM
An optical fiber temperature distribution measuring apparatus and a method for measuring optical fiber temperature distribution, provided with a light source for inputting a pulse light to an optical fiber to be measured, a signal detecting unit for detecting a received light intensity of a predetermined light included in a backscattering light generated by an input of the pulse light in the optical fiber to be measured, and a signal processing unit for calculating a value corresponding to a variation of the received light intensity due to a hydrogen molecular absorption of the optical fiber to be measured based on the received light intensity of the predetermined light, to compensate the received light intensity of the predetermined light corresponding to a temperature of the optical fiber to be measured based on the value.
31.
PON SYSTEM AND TERMINAL OPERATION REGISTERING METHOD
In a PON system in which communication is performed at a plurality of types of transmission rate (L, M, and H) in an upstream direction from a plurality of terminals connected to a station apparatus through optical fibers, within a discovery period for allowing an unregistered terminal to be recognized by station apparatus, the terminal makes a discovery response at one type of transmission rate (L). With this configuration, station apparatus can wait for a discovery response with a receive function being allowed to support transmission rate (L).
An optical fiber holder automatically corrects the tendency of a buffered optical fiber to bend, can position an optical fiber so as to make contact with the V groove, and can readily perform an operation for positioning the optical fiber. The optical fiber holder includes a base stage having a groove configured and arranged to accommodate a buffered optical fiber or an optical fiber ribbon; and a lid that is disposed above the groove. The lid is openable and closeable and has a restraining member. The restraining member includes a contacting part configured and arranged to bend the buffered optical fiber or optical fiber ribbon.
A splice protection heater capable of quickly and efficiently performing a fusion process without an excessive heating time, a fusion splicer including the splice protection heater, and a fusion splicing method are provided. The apparatus has a heating part for heat shrinking a protection sleeve that covers a fusion spliced portion of an optical fiber, a plurality of heating elements that can individually heat a plurality of protection sleeves with different timings by being individually turned ON/OFF by switches, or a heating element turned ON/OFF by a switch. This apparatus may also be provided with detecting section that detects whether or not the protection sleeve is set on the heating element, and turns the switch ON/OFF
A splice protection heater capable of quickly and efficiently performing a fusion process without an excessive heating time, a fusion splicer including the splice protection heater, and a fusion splicing method are provided. The apparatus has a heating part for heat shrinking a protection sleeve that covers a fusion spliced portion of an optical fiber, a plurality of heating elements that can individually heat a plurality of protection sleeves with different timings by being individually turned ON/OFF by switches, or a heating element turned ON/OFF by a switch. This apparatus may also be provided with detecting section that detects whether or not the protection sleeve is set on the heating element, and turns the switch ON/OFF.
A circuit structure includes a circuit board for mounting switching devices and bus bars wired into the circuit along the circuit board, and the case includes a frame that is disposed and secured in position around a perimeter edge of the circuit board and a cover that is assembled to the frame so as to cover the circuit board. The frame contains a second connector housing, and the second connector housing includes a hood for accommodating the second terminals formed at the ends of the bus bars. A deformation restricting portion formed on the cover so as to abut the outer face of the hood from the upper face direction thereof to cover the hood, thereby restricting deformation of the hood.
H02G 3/16 - Boîtes de distribution; Boîtes de connexion ou de dérivation associées par construction à un support pour bornes de connexion de ligne à l'intérieur de la boîte
H01R 13/74 - Montage des pièces de couplage dans les ouvertures d'un panneau
A fiber cleaver is provided which is capable of cleaving a glass fiber portion in a short time without depending on a particular working environment. The fiber cleaver comprises a holding member for holding a glass fiber portion of an optical fiber, a cutter for affording a scratch to the glass fiber portion which is held by the holding member, an elastic member or spring for moving the cutter, and a slider engaging member for maintaining the elastic member or spring in a state of elastic deformation. Also provided is a fiber cleaver comprising a holding member for holding the glass fiber portion of an optical fiber, a cutter for affording a scratch to the glass fiber portion held by the holding member, and a holder engaging part for holding a holder that holds an optical fiber at its part having a protective covering. The holder engaging part has a first holder engaging member for pushing and holding the holder in a direction parallel to a movement direction of the cutter.
G02B 6/00 - OPTIQUE ÉLÉMENTS, SYSTÈMES OU APPAREILS OPTIQUES - Détails de structure de dispositions comprenant des guides de lumière et d'autres éléments optiques, p.ex. des moyens de couplage
It is an object of the invention to provide a tool for precision finishing and grooving of quenched steel by thinning a coating film of a CBN sintered compact tool. The invention provides a surface-coated high hardness material for tool comprising a cubic boron nitride sintered compact (CBN sintered compact, hereinafter) as a substrate and at least one coating film layer formed on the surface of the substrate wherein said coating film layer has thickness of 0.1 µm or more and less than 1 µm and comprises, as main component, a compound having at least one kind of element selected from C, N and O, and Ti and Al. If this material is used as a grooving tool, excellent performance is exhibited. Examples of the coating film are an intermediate layer, a wear-resistant film, a surface layer and the like.
B23B 27/20 - Outils de coupe sur lesquels les taillants ou éléments tranchants sont en matériaux particulier à éléments tranchants constitués par des diamants
C23C 14/06 - Revêtement par évaporation sous vide, pulvérisation cathodique ou implantation d'ions du matériau composant le revêtement caractérisé par le matériau de revêtement
METHOD AND APPARATUS FOR HEAT TREATMENT OF METALS ABSTRACT OF THE DISCLOSURE A method and apparatus for heat treatment of metals by immersing a hot metal member in a liquid is disclosed. A gas is blown into the liquid through all or part of the cross-sectional area beneath the metal member to agitate the liquid and bring it into a fluidized bed-like state. This method and apparatus provide a wide range of cooling rates with warm water.
Abstract of the Disclosure An apparatus for detecting any irregularities on the surface of a running linear material is proposed which has a light projector and a pair of photoelectric conversion elements. The shadow of the material is cast on the elements. By picking up a difference between the outputs from the elements, any irregularities can be detected.
ABSTRACT OF THE DISCLOSURE An electrically insulating laminate paper for an electric apparatus to be wound in a wet state on a conductive material and thereafter impregnated with oil, which is characterized by that water drops having a wide particle size distribution are scattered on the surface of the electrically insulating laminate paper comprising an integrated assembly composed of a plastic film and fiber papers bonded to each other to moisten said fiber papers.
B32B 27/10 - Produits stratifiés composés essentiellement de résine synthétique comme seul composant ou composant principal d'une couche adjacente à une autre couche d'une substance spécifique de papier ou de carton
B32B 29/06 - Produits stratifiés composés essentiellement de papier ou de carton spécialement traité, p.ex. glacé, parcheminé
H01B 3/52 - Isolateurs ou corps isolants caractérisés par le matériau isolant; Emploi de matériaux spécifiés pour leurs propriétés isolantes ou diélectriques composés principalement de substances organiques matériaux fibreux carton
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