Patents by Inventor Masanori Aimu
Masanori Aimu 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).
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Patent number: 11283089Abstract: A fuel cell system includes: a fuel cell; an oxidant gas supply unit configured to supply an oxidant gas to a cathode electrode of the fuel cell; and a gas pressure control unit configured to detect as a gas pressure sensitivity a ratio of variation in an output of the fuel cell to variation in the pressure of the oxidant gas, specify a correspondence relationship between the pressure of the oxidant gas and the output of the fuel cell on the basis of the detected gas pressure sensitivity, and control the pressure of the oxidant gas on the basis of the specified correspondence relationship.Type: GrantFiled: November 9, 2018Date of Patent: March 22, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masaaki Matsusue, Masanori Aimu
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Patent number: 10683186Abstract: There is provided a technique of reducing the possibility of the occurrence of wrinkles in the process of bonding strip-shaped members to each other. A long strip-shaped first member is conveyed in a longitudinal direction of the first member. A width of a long strip-shaped second member in the shorter direction of the second member is larger than a width of the first member in a shorter direction of the first member. The second member is placed such that respective ends in a shorter direction of the second member are freed. The second member is bonded to the first member being conveyed, such that the shorter direction of the first member is aligned with the shorter direction of the second member and that respective ends in the shorter direction of the first member are placed between the respective ends in the shorter direction of the second member. The second member bonded to the first member is then conveyed along with the conveyed first member.Type: GrantFiled: January 4, 2018Date of Patent: June 16, 2020Assignee: Toyota Jidosha Kabushiki KaishaInventors: Masanori Aimu, Naohiro Mitani
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Patent number: 10647536Abstract: There is provided a technique of reducing the possibility of the occurrence of wrinkles in the process of bonding strip-shaped members to each other. A long strip-shaped first member is conveyed in a longitudinal direction of the first member. A width of a long strip-shaped second member in the shorter direction of the second member is larger than a width of the first member in a shorter direction of the first member. The second member is placed such that respective ends in a shorter direction of the second member are freed. The second member is bonded to the first member being conveyed, such that the shorter direction of the first member is aligned with the shorter direction of the second member and that respective ends in the shorter direction of the first member are placed between the respective ends in the shorter direction of the second member. The second member bonded to the first member is then conveyed along with the conveyed first member.Type: GrantFiled: January 4, 2018Date of Patent: May 12, 2020Assignee: Toyota Judosha Kabushiki KaishaInventors: Masanori Aimu, Naohiro Mitani
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Patent number: 10399314Abstract: Provided is a lamination device that laminates an electrolyte film and a porous film. The lamination device includes a support portion configured to support a porous film roll, in which the porous film is wound, such that the porous film roll is able to revolve, an unwinding portion configured to support an electrolyte film roll, in which the electrolyte film is wound, and unwind the electrolyte film from the electrolyte film roll, a conveying portion configured to convey the unwound electrolyte film, and a control portion configured to control the support portion, the unwinding portion, and the conveying portion. The control portion is configured to control the support portion such that the conveyed electrolyte film and the porous film roll are brought closer to one another and an outer peripheral surface of the porous film roll is pressed against one of surfaces of the electrolyte film.Type: GrantFiled: March 5, 2018Date of Patent: September 3, 2019Assignee: Toyota Jidosha Kabushiki KaishaInventor: Masanori Aimu
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Publication number: 20190081339Abstract: A fuel cell system includes: a fuel cell; an oxidant gas supply unit configured to supply an oxidant gas to a cathode electrode of the fuel cell; and a gas pressure control unit configured to detect as a gas pressure sensitivity a ratio of variation in an output of the fuel cell to variation in the pressure of the oxidant gas, specify a correspondence relationship between the pressure of the oxidant gas and the output of the fuel cell on the basis of the detected gas pressure sensitivity, and control the pressure of the oxidant gas on the basis of the specified correspondence relationship.Type: ApplicationFiled: November 9, 2018Publication date: March 14, 2019Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masaaki MATSUSUE, Masanori AIMU
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Patent number: 10158134Abstract: A fuel cell system includes: a fuel cell; an oxidant gas supply unit configured to supply an oxidant gas to a cathode electrode of the fuel cell; and a gas pressure control unit configured to detect as a gas pressure sensitivity a ratio of variation in an output of the fuel cell to variation in the pressure of the oxidant gas, specify a correspondence relationship between the pressure of the oxidant gas and the output of the fuel cell on the basis of the detected gas pressure sensitivity, and control the pressure of the oxidant gas on the basis of the specified correspondence relationship.Type: GrantFiled: September 30, 2013Date of Patent: December 18, 2018Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masaaki Matsusue, Masanori Aimu
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Publication number: 20180250922Abstract: Provided is a lamination device that laminates an electrolyte film and a porous film. The lamination device includes a support portion configured to support a porous film roll, in which the porous film is wound, such that the porous film roll is able to revolve, an unwinding portion configured to support an electrolyte film roll, in which the electrolyte film is wound, and unwind the electrolyte film from the electrolyte film roll, a conveying portion configured to convey the unwound electrolyte film, and a control portion configured to control the support portion, the unwinding portion, and the conveying portion. The control portion is configured to control the support portion such that the conveyed electrolyte film and the porous film roll are brought closer to one another and an outer peripheral surface of the porous film roll is pressed against one of surfaces of the electrolyte film.Type: ApplicationFiled: March 5, 2018Publication date: September 6, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Masanori Aimu
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Publication number: 20180215567Abstract: There is provided a technique of reducing the possibility of the occurrence of wrinkles in the process of bonding strip-shaped members to each other. A long strip-shaped first member is conveyed in a longitudinal direction of the first member. A width of a long strip-shaped second member in the shorter direction of the second member is larger than a width of the first member in a shorter direction of the first member. The second member is placed such that respective ends in a shorter direction of the second member are freed. The second member is bonded to the first member being conveyed, such that the shorter direction of the first member is aligned with the shorter direction of the second member and that respective ends in the shorter direction of the first member are placed between the respective ends in the shorter direction of the second member. The second member bonded to the first member is then conveyed along with the conveyed first member.Type: ApplicationFiled: January 4, 2018Publication date: August 2, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masanori AIMU, Naohiro MITANI
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Patent number: 9461312Abstract: An electrode (31c) for fuel cell comprises: a catalyst carrier (110) that is an electrically-conductive carrier (130) with a catalyst (120) supported thereon; a first electrolyte resin (141); and a second electrolyte resin (142). The first electrolyte resin has oxygen permeability of less than 2.2×10?14 mol/(m s Pa) in an environment having temperature of 80 degrees Celsius and relative humidity of 50%. The second electrolyte resin has oxygen permeability of not less than 2.2×10?14 mol/(m s Pa) in the environment having temperature of 80 degrees Celsius and relative humidity of 50%.Type: GrantFiled: August 7, 2012Date of Patent: October 4, 2016Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, E.I. DUPONT DE NEMOURS AND COMPANYInventors: Masanori Aimu, Randal Lewis Perry, Mark Gerrit Roelofs, Robert Clayton Wheland, Ralph Munson Aten, Andri E. Elia
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Patent number: 9431661Abstract: A cathode catalyst layer used for a polymer electrolyte fuel cell that includes an electrolyte membrane is provided. The cathode catalyst layer comprises a catalyst having weight of not greater than 0.3 mg/cm2 of a reaction surface of the cathode catalyst layer that is adjoining the electrolyte membrane; and an electrolyte resin having oxygen permeability of not less than 2.2*10?14 mol/m/s/Pa in an environment of temperature of 80 degrees Celsius and relative humidity of 50%.Type: GrantFiled: December 20, 2011Date of Patent: August 30, 2016Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, E.I. DUPONT DE NEMOURS AND COMPANYInventors: Nobuaki Nonoyama, Masanori Aimu, Randal Lewis Perry, Mark Gerrit Roelofs, Robert Clayton Wheland, Ralph Munson Aten
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Publication number: 20150207159Abstract: A fuel cell system includes: a fuel cell; an oxidant gas supply unit configured to supply an oxidant gas to a cathode electrode of the fuel cell; and a gas pressure control unit configured to detect as a gas pressure sensitivity a ratio of variation in an output of the fuel cell to variation in the pressure of the oxidant gas, specify a correspondence relationship between the pressure of the oxidant gas and the output of the fuel cell on the basis of the detected gas pressure sensitivity, and control the pressure of the oxidant gas on the basis of the specified correspondence relationship.Type: ApplicationFiled: September 30, 2013Publication date: July 23, 2015Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masaaki Matsusue, Masanori Aimu
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Patent number: 8802314Abstract: It is an object of the present invention to provide a fuel cell electrolyte membrane reinforced with a porous substrate which has excellent durability and in which the amount of cross leakage as a result of chemical deterioration of electrolyte membrane components due to the presence of peroxide and/or radicals is particularly reduced. The present invention relates to an electrolyte membrane for a fuel cell comprising a polyelectrolyte, which contains a porous substrate and a radical scavenger dispersed in the polyelectrolyte.Type: GrantFiled: October 15, 2009Date of Patent: August 12, 2014Assignees: Toyota Jidosha Kabushiki Kaisha, W.L. Gore & Associates, Co., Ltd.Inventors: Yasuhiro Akita, Masanori Aimu, Tatsuya Kawahara, Takeshi Nagasawa, Toyohiro Matsuura, Takeyuki Suzuki, Hiroshi Kato, Hideki Yamada
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Publication number: 20140154608Abstract: A cathode catalyst layer used for a polymer electrolyte fuel cell that includes an electrolyte membrane is provided. The cathode catalyst layer comprises a catalyst having weight of not greater than 0.3 mg/cm2 of a reaction surface of the cathode catalyst layer that is adjoining the electrolyte membrane; and an electrolyte resin having oxygen permeability of not less than 2.2*10?14 mol/m/s/Pa in an environment of temperature of 80 degrees Celsius and relative humidity of 50%.Type: ApplicationFiled: December 20, 2011Publication date: June 5, 2014Applicants: E. I. DU PONT DE NEMOURS AND COMPANY, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Nobuaki Nonoyama, Masanori Aimu, Randal Lewis Perry, Mark Gerrit Roelofs, Robert Clayton Wheland, Ralph Munson Aten
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Publication number: 20130252134Abstract: This invention relates to solid polymer electrolyte materials for use in one or more electrode of a fuel cell. The solid polymer electrolyte materials comprise one or more ionomer which comprises polymerized units of monomers A and monomers B, wherein monomers A are perfluoro dioxole or perfluoro dioxolane monomers, and the monomers B are functionalized perfluoro olefins having fluoroalkyl sulfonyl, fluoroalkyl sulfonate or fluoroalkyl sulfonic acid pendant groups, CF2?CF(O)[CF2]nSO2X. The ionomer of the solid polymer electrolyte material has a number average molecular weight, Mn, of greater than 140,000. Specifically, the ionomers of the invention may find use in the catalyst layer of an electrode because the high molecular weight ionomers mitigate the formation of cracks in the catalyst layer.Type: ApplicationFiled: December 20, 2011Publication date: September 26, 2013Applicants: Toyota Jidosha Kabushiki Kaisha, EI Du Pont De Nemours and Company andInventors: Masayoshi Takami, Toshihiko Yoshida, Masanori Aimu, Randal Lewis Perry, Mark Gerrit Roelofs, Robert Clayton Wheland, Ralph Munson Aten
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Publication number: 20110287335Abstract: It is an object of the present invention to provide a fuel cell electrolyte membrane reinforced with a porous substrate which has excellent durability and in which the amount of cross leakage as a result of chemical deterioration of electrolyte membrane components due to the presence of peroxide and/or radicals is particularly reduced. The present invention relates to an electrolyte membrane for a fuel cell comprising a polyelectrolyte, which contains a porous substrate and a radical scavenger dispersed in the polyelectrolyte.Type: ApplicationFiled: October 15, 2009Publication date: November 24, 2011Applicants: W.L, GORE & ASSOCIATES CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yasuhiro Akita, Masanori Aimu, Tatsuya Kawahara, Takeshi Nagasawa, Toyohiro Matsuura, Takeyuki Suzuki, Hiroshi Kato, Hideki Yamada
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Publication number: 20090029039Abstract: A method of manufacturing a membrane electrode assembly for a fuel cell, in which a catalyst layer is disposed between an electrolyte membrane and a gas diffusion layer, includes producing a catalyst powder that is used to form the catalyst layer; and forming the catalyst layer by unevenly depositing the catalyst powder on at least one of the electrolyte membrane and the gas diffusion layer.Type: ApplicationFiled: July 16, 2008Publication date: January 29, 2009Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masao Okumura, Masanori Aimu, Tatsuya Hatanaka
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Patent number: 6723464Abstract: A membrane-electrode-assembly with a solid polymer electrolyte, wherein a laminated structure is obtained by a process in which a membrane/catalyst layer conjugate produced by bonding a first catalyst layer containing a catalyst and an ion-conducting resin to a solid polymer electrolyte membrane, and a gas diffusion layer/catalyst layer conjugate produced by forming a second catalyst layer containing a catalyst and an ion-conducting resin on one side of a gas diffusion layer consisting of a gas-permeable electroconductive sheet material are laminated at least on the anode or cathode side such that the first catalyst layer and second catalyst layer face each other.Type: GrantFiled: May 31, 2001Date of Patent: April 20, 2004Assignee: Japan Gore-Tex, Inc.Inventors: Katsuyuki Tabata, Fusaki Fujibayashi, Masanori Aimu
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Publication number: 20020071980Abstract: A membrane-electrode-assembly with a solid polymer electrolyte, wherein a laminated structure is obtained by a process in which a membrane/catalyst layer conjugate produced by bonding a first catalyst layer containing a catalyst and an ion-conducting resin to a solid polymer electrolyte membrane, and a gas diffusion layer/catalyst layer conjugate produced by forming a second catalyst layer containing a catalyst and an ion-conducting resin on one side of a gas diffusion layer consisting of a gas-permeable electroconductive sheet material are laminated at least on the anode or cathode side such that the first catalyst layer and second catalyst layer face each other.Type: ApplicationFiled: May 31, 2001Publication date: June 13, 2002Inventors: Katsuyuki Tabata, Fusaki Fujibayashi, Masanori Aimu