Patents by Inventor Yuji Echigo
Yuji Echigo has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Publication number: 20210028478Abstract: A metal support-type fuel cell that has a configuration in which a fuel cell element is supported by a metal support, and is capable of reasonably and effectively utilizing an internal reforming reaction even when an anode layer provided in the fuel cell element has a thickness of several tens of micron order is obtained. A fuel cell element is formed in a thin layer shape on a metal support, an internal reforming catalyst layer for producing hydrogen from a raw fuel gas by a steam reforming reaction is provided in a cell unit, and an internal reformed fuel supply path for discharging steam generated by a power generation reaction from an anode layer to lead the steam to the internal reforming catalyst layer, and leading the produced hydrogen to the anode layer is provided.Type: ApplicationFiled: March 29, 2019Publication date: January 28, 2021Inventors: Mitsuaki Echigo, Hisao Onishi, Noritoshi Shinke, Yuji Tsuda
-
Publication number: 20210028475Abstract: A fuel cell single unit including: a fuel cell element in which an anode layer and a cathode layer are formed so as to sandwich an electrolyte layer; a reducing gas supply path for supplying a gas containing hydrogen to the anode layer; an oxidizing gas supply path for supplying a gas containing oxygen to the cathode layer; and an internal reforming catalyst layer, which has a reforming catalyst for steam-reforming a fuel gas, in at least a part of the reducing gas supply path is provided. An external reformer, which has a reforming catalyst for steam-reforming the fuel gas, is provided upstream of the reducing gas supply path, and the fuel gas partially reformed by the external reformer is supplied to the reducing gas supply path.Type: ApplicationFiled: March 29, 2019Publication date: January 28, 2021Inventors: Mitsuaki Echigo, Hisao Onishi, Noritoshi Shinke, Yuji Tsuda
-
Patent number: 10892493Abstract: Realized is an element having an electrolyte layer that is dense and has high gas barrier characteristics. A metal-supported electrochemical element includes at least a metal substrate as a support, an electrode layer formed on/over the metal substrate, a buffer layer formed on the electrode layer, and an electrolyte layer formed on the buffer layer. The electrode layer is porous and the electrolyte layer is dense. The buffer layer has density higher than density of the electrode layer and lower than density of the electrolyte layer.Type: GrantFiled: September 14, 2016Date of Patent: January 12, 2021Assignee: Osaka Gas Co., Ltd.Inventors: Mitsuaki Echigo, Hisao Ohnishi, Kyohei Manabe, Osamu Yamazaki, Kazuyuki Minami, Yuji Tsuda
-
Publication number: 20200328429Abstract: Realized is an element having an electrolyte layer that is dense and has high gas barrier characteristics. A metal-supported electrochemical element includes at least a metal substrate as a support, an electrode layer formed on/over the metal substrate, a buffer layer formed on the electrode layer, and an electrolyte layer formed on the buffer layer. The electrode layer is porous and the electrolyte layer is dense. The buffer layer has density higher than density of the electrode layer and lower than density of the electrolyte layer.Type: ApplicationFiled: June 24, 2020Publication date: October 15, 2020Inventors: Mitsuaki Echigo, Hisao Ohnishi, Kyohei Manabe, Osamu Yamazaki, Kazuyuki Minami, Yuji Tsuda
-
Publication number: 20200321620Abstract: Realized is an element having an electrolyte layer that is dense and has high gas barrier characteristics. A metal-supported electrochemical element includes at least a metal substrate as a support, an electrode layer formed on/over the metal substrate, a buffer layer formed on the electrode layer, and an electrolyte layer formed on the buffer layer. The electrode layer is porous and the electrolyte layer is dense. The buffer layer has density higher than density of the electrode layer and lower than density of the electrolyte layer.Type: ApplicationFiled: June 24, 2020Publication date: October 8, 2020Inventors: Mitsuaki Echigo, Hisao Ohnishi, Kyohei Manabe, Osamu Yamazaki, Kazuyuki Minami, Yuji Tsuda
-
Publication number: 20200014051Abstract: Provided is a low-cost electrochemical element that has excellent performance, reliability, and durability. Also, provided is a manufacturing method for an electrochemical element including a metal substrate (metal support) and an electrode layer formed on/over the metal substrate. The method includes an electrode layer forming step of forming an electrode layer having a region with a surface roughness of 1.0 ?m or less on/over the metal substrate, and an electrolyte layer forming step of forming an electrolyte layer by spraying aerosolized metal oxide powder onto the electrode layer.Type: ApplicationFiled: March 22, 2018Publication date: January 9, 2020Inventors: Mitsuaki Echigo, Hisao Ohnishi, Yuji Tsuda, Kyohei Manabe, Kazuyuki Minami
-
Patent number: 10239970Abstract: Fine polymer particles made by a method include producing an emulsion in a liquid prepared by dissolving and mixing a polymer A and a polymer B in organic solvents in which a solution phase composed primarily of the polymer A and a solution phase composed primarily of the polymer B are formed as separate phases, wherein the solvents in the two phases resulting from the phase separation are substantially identical to each other, and contacting the emulsion with a poor solvent for the polymer A to precipitate the polymer A, wherein the particles have a glass transition point of 150° C. or more and 400° C. or less, an average particle diameter of 1 ?m or more to 100 ?m or less, and a particle diameter distribution index of the particles is 2 or less, wherein the polymer A is nonvinyl type polymer.Type: GrantFiled: June 30, 2016Date of Patent: March 26, 2019Assignee: Toray Industries, Inc.Inventors: Itaru Asano, Yuji Echigo, Hiroshi Takezaki
-
Patent number: 10202496Abstract: A production method of polyvinylidene fluoride resin particles comprising: (Process a1) a process to precipitate the polyvinylidene fluoride resin particles by adding a 100 mass % solution in total consisting of 75 to 99 mass % organic solvent, 1 to 25 mass % water and 0.5 to 15 mass % polyvinylidene fluoride resin to a poor solvent of the polyvinylidene fluoride resin; or (Process a2) a process to precipitate polyvinylidene fluoride resin particles by performing a flash-crystallization of the solution. With such a configuration, PVDF resin particles can be industrially produced by simple operations without using surfactant agent.Type: GrantFiled: November 7, 2014Date of Patent: February 12, 2019Assignee: TORAY INDUSTRIES, INC.Inventors: Toshiya Takahashi, Kei Makita, Naoki Matsuda, Koya Ito, Yoshinori Kondo, Yuji Echigo
-
Publication number: 20180338927Abstract: In a system where phase separation into two phases occurs when an ether cellulose derivative (A), a polymer (B) different from the ether cellulose derivative (A), and an alcohol solvent (C) are mixed together, the two phases including a solution phase mainly containing the ether cellulose derivative (A) and a solution phase mainly containing the polymer (B), the two separated phases containing approximately the same solvent, an emulsion is formed and brought into contact with a poor solvent (D) to provide an ether cellulose derivative microparticle having an average particle diameter of 1 to 1,000 ?m, a linseed oil absorption of 50 to 1,000 mL/100 g, and an average surface pore size of 0.05 to 5 ?m.Type: ApplicationFiled: October 26, 2016Publication date: November 29, 2018Inventors: Takahiko Otsubo, Kotoe Ohta, Yuji Echigo, Hiroshi Takezaki, Suguru Takaki, Satoshi Minakami, Akinori Ito, Hisashi Miyama
-
Patent number: 10072377Abstract: A fiber reinforced composite material having high interlaminar toughness and compressive strength under wet heat conditions, as well as an epoxy resin composition for production thereof and a prepreg producible from the epoxy resin composition is described. The prepreg includes at least constituents [A], [B], and [C] as specified below and reinforcement fiber, wherein 90% or more of constituent [C] exists in the depth range accounting for 20% of the prepreg thickness from the prepreg surface: [A] epoxy resin; [B] epoxy resin curing agent; and [C] polymer particles insoluble in epoxy resin.Type: GrantFiled: July 25, 2012Date of Patent: September 11, 2018Assignee: TORAY INDUSTRIES, INC.Inventors: Yuko Shimizu, Nobuyuki Tomioka, Shirou Honda, Maki Nagano, Yuji Echigo, Hiroshi Takezaki, Junko Kawasaki, Hiroshi Taiko
-
Patent number: 9988501Abstract: A method of producing polymer particles includes, in a system in which a polymer A and a polymer B are dissolved in and mixed with an organic solvent to undergo phase separation into two phases which are a solution phase containing the polymer A as a major component and a solution phase containing the polymer B as a major component, continuously adding an emulsion including the polymer A, the polymer B and the organic solvent, and a poor solvent for the polymer A to a vessel continuously to allow the polymer A to precipitate; and separating polymer A particles from the vessel continuously.Type: GrantFiled: June 1, 2015Date of Patent: June 5, 2018Assignee: Toray Industries, Inc.Inventors: Yoshinori Kondo, Yuji Echigo, Akira Kitamura, Hiroshi Takezaki
-
Patent number: 9920193Abstract: Provided are: fine vinylidene fluoride resin particles which are solid and have an average particle diameter of 0.3 ?m or more but less than 100 ?m, a particle diameter distribution index of 1-2, a repose angle of less than 40°, and an average sphericity of 80 or more said fine vinylidene fluoride particles being suitable for coating materials and coating applications; and a method for producing the fine vinylidene fluoride resin particles.Type: GrantFiled: August 26, 2013Date of Patent: March 20, 2018Assignee: TORAY INDUSTRIES, INC.Inventors: Yuji Echigo, Makiko Saito, Itaru Asano, Yoko Wakahara, Hiroshi Takezaki
-
Publication number: 20170088677Abstract: A method of producing polymer particles includes, in a system in which a polymer A and a polymer B are dissolved in and mixed with an organic solvent to undergo phase separation into two phases which are a solution phase containing the polymer A as a major component and a solution phase containing the polymer B as a major component, continuously adding an emulsion including the polymer A, the polymer B and the organic solvent, and a poor solvent for the polymer A to a vessel continuously to allow the polymer A to precipitate; and separating polymer A particles from the vessel continuously.Type: ApplicationFiled: June 1, 2015Publication date: March 30, 2017Inventors: Yoshinori Kondo, Yuji Echigo, Akira Kitamura, Hiroshi Takezaki
-
Publication number: 20170051116Abstract: A production method of polyvinylidene fluoride resin particles comprising: (Process a1) a process to precipitate the polyvinylidene fluoride resin particles by adding a 100 mass % solution in total consisting of 75 to 99 mass % organic solvent, 1 to 25 mass % water and 0.5 to 15 mass % polyvinylidene fluoride resin to a poor solvent of the polyvinylidene fluoride resin; or (Process a2) a process to precipitate polyvinylidene fluoride resin particles by performing a flash-crystallization of the solution. With such a configuration, PVDF resin particles can be industrially produced by simple operations without using surfactant agent.Type: ApplicationFiled: November 7, 2014Publication date: February 23, 2017Applicant: TORAY INDUSTRIES, INC.Inventors: Toshiya TAKAHASHI, Kei MAKITA, Naoki MATSUDA, Koya ITO, Yoshinori KONDO, Yuji ECHIGO
-
Publication number: 20160304714Abstract: Fine polymer particles made by a method include producing an emulsion in a liquid prepared by dissolving and mixing a polymer A and a polymer B in organic solvents in which a solution phase composed primarily of the polymer A and a solution phase composed primarily of the polymer B are formed as separate phases, wherein the solvents in the two phases resulting from the phase separation are substantially identical to each other, and contacting the emulsion with a poor solvent for the polymer A to precipitate the polymer A, wherein the particles have a glass transition point of 150° C. or more and 400° C. or less, an average particle diameter of 1 ?m or more to 100 ?m or less, and a particle diameter distribution index of the particles is 2 or less, wherein the polymer A is nonvinyl type polymer.Type: ApplicationFiled: June 30, 2016Publication date: October 20, 2016Inventors: Itaru Asano, Yuji Echigo, Hiroshi Takezaki
-
Patent number: 9410004Abstract: A fine polymer particle production method includes producing an emulsion in a liquid prepared by dissolving and mixing a polymer A and a polymer B in organic solvents in which a solution phase composed primarily of the polymer A and a solution phase composed primarily of the polymer B are formed as separate phases, and bringing it into contact with a poor solvent for the polymer A to precipitate the polymer A. This method serves for easy synthesis of fine polymer particles with a narrow particle size distribution and the method can be effectively applied to production of highly heat-resistant polymers that have been difficult to produce with the conventional methods.Type: GrantFiled: August 8, 2013Date of Patent: August 9, 2016Assignee: Toray Industries, Inc.Inventors: Itaru Asano, Yuji Echigo, Hiroshi Takezaki
-
Publication number: 20150218359Abstract: Provided are: fine vinylidene fluoride resin particles which are solid and have an average particle diameter of 0.3 ?m or more but less than 100 ?m, a particle diameter distribution index of 1-2, a repose angle of less than 40°, and an average sphericity of 80 or more said fine vinylidene fluoride particles being suitable for coating materials and coating applications; and a method for producing the fine vinylidene fluoride resin particles.Type: ApplicationFiled: August 26, 2013Publication date: August 6, 2015Applicant: TORAY INDUSTRIES, INC.Inventors: Yuji Echigo, Makiko Saito, Itaru Asano, Yoko Wakahara, Hiroshi Takezaki
-
Patent number: 9080048Abstract: A process of producing polymer microparticles wherein, in a system which includes a polymer (A), a polymer (B) and an organic solvent and can cause phase separation into two phases of a solution phase mainly composed of the polymer (A) and a solution phase mainly composed of the polymer (B) when the polymer (A), the polymer (B) and the organic solvent are dissolved and mixed together, after an emulsion is formed at a temperature of 100° C. or higher, the polymer (A) is precipitated by bringing a poor solvent for the polymer (A) into contact with the emulsion.Type: GrantFiled: September 27, 2011Date of Patent: July 14, 2015Assignee: Toray Industries, Inc.Inventors: Yuji Echigo, Itaru Asano, Hiroshi Kobayashi, Hiroshi Takezaki
-
Publication number: 20140162518Abstract: The invention provides a fiber reinforced composite material having high interlaminar toughness and compressive strength under wet heat conditions, as well as an epoxy resin composition for production thereof and a prepreg producible from the epoxy resin composition. The prepreg comprises at least constituents [A], [B], and [C] as specified below and reinforcement fiber, wherein 90% or more of constituent [C] exists in the depth range accounting for 20% of the prepreg thickness from the prepreg surface: [A] epoxy resin [B] epoxy resin curing agent [C] polymer particles insoluble in epoxy resin and falling under any of the following [Cx] to [Cz]: [Cx] polymer particles insoluble in epoxy resin and giving a particle diameter distribution chart meeting the following requirements from (x-i) to (x-iii): (x-i) the chart has at least two peaks, (x-ii) the particles giving the two highest peaks have a diameter ratio in the range of 1.Type: ApplicationFiled: July 25, 2012Publication date: June 12, 2014Applicant: TORAY INDUSTRIES, INC.Inventors: Yuko Shimizu, Nobuyuki Tomioka, Shirou Honda, Maki Nagano, Yuji Echigo, Hiroshi Takezaki, Junko Kawasaki, Hiroshi Taiko
-
Publication number: 20130337263Abstract: A fine polymer particle production method includes producing an emulsion in a liquid prepared by dissolving and mixing a polymer A and a polymer B in organic solvents in which a solution phase composed primarily of the polymer A and a solution phase composed primarily of the polymer B are formed as separate phases, and bringing it into contact with a poor solvent for the polymer A to precipitate the polymer A. This method serves for easy synthesis of fine polymer particles with a narrow particle size distribution and the method can be effectively applied to production of highly heat-resistant polymers that have been difficult to produce with the conventional methods.Type: ApplicationFiled: August 8, 2013Publication date: December 19, 2013Applicant: Toray Industries, Inc.Inventors: Itaru Asano, Yuji Echigo, Hiroshi Takezaki