Patents by Inventor Keisuke Andou
Keisuke Andou 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: 8637204Abstract: In a solid polymer electrolyte membrane [film] type fuel cell of the invention, where a pair of electrodes are provided on opposite sides of a solid polymer electrolyte membrane [film], and the outside thereof is clamped by a pair of separators, and nonconductive picture frame-shaped members 61 are arranged at the outer edge portions of the separators, for allowing increase and decrease of a space between separators, while sealing a gap between the separators.Type: GrantFiled: December 15, 2011Date of Patent: January 28, 2014Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Toshihiko Suenaga, Narutoshi Sugita, Takayuki Ogawa, Keisuke Andou, Masajiro Inoue
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Patent number: 8283085Abstract: A fuel cell includes a plurality of fuel cell units, each fuel cell unit including an electrode assembly formed by disposing electrodes on both sides of an electrolyte, a pair of separators that sandwich the electrode assembly, and gas sealing members that are disposed at an outer peripheral portion of the electrode assembly, and that seal respective reaction gas flow passages that are formed between each separator and the electrode assembly. In one of the separators of each of the fuel cell units, a through path is formed that penetrates the separator in the thickness direction thereof, and the through path formed in one of the separators of one of the fuel cell units and the through path formed in one of the separators of adjacent one of the fuel cell units are offset with each other as viewed in the thickness direction of the separators.Type: GrantFiled: November 13, 2009Date of Patent: October 9, 2012Assignee: Honda Motor Co., Ltd.Inventors: Hideaki Kikuchi, Narutoshi Sugita, Yoshihiro Nakanishi, Tadashi Nishiyama, Keisuke Andou
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Patent number: 8247131Abstract: A fuel cell stack includes a load receiver provided at an outer end of a fuel cell unit, a guide receiver provided in a box, and a pressure receiver provided in at least one corner in the box. The guide receiver abuts against the load receiver for receiving the external load. The pressure receiver protrudes toward the fuel cell unit. The pressure receiver abuts against a corner of the fuel cell unit for receiving the load. The pressure receiver has a resin receiver, and the resin receiver abuts against a curved portion of the fuel cell unit for supporting the fuel cell unit.Type: GrantFiled: June 11, 2008Date of Patent: August 21, 2012Assignee: Honda Motor Co., Ltd.Inventors: Ken Takahashi, Ryoichi Yoshitomi, Daisuke Wachi, Keisuke Andou, Ayumu Ishizuka, Tadashi Nishiyama
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Publication number: 20120088183Abstract: In a solid polymer electrolyte membrane [film] type fuel cell of the invention, where a pair of electrodes are provided on opposite sides of a solid polymer electrolyte membrane [film], and the outside thereof is clamped by a pair of separators, and nonconductive picture frame-shaped members 61 are arranged at the outer edge portions of the separators, for allowing increase and decrease of a space between separators, while sealing a gap between the separators.Type: ApplicationFiled: December 15, 2011Publication date: April 12, 2012Applicant: HONDA MOTOR CO., LTD.Inventors: Toshihiko SUENAGA, Narutoshi SUGITA, Takayuki OGAWA, Keisuke ANDOU, Masajiro INOUE
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Patent number: 8097379Abstract: In a solid polymer electrolyte membrane type fuel cell of the invention, where a pair of electrodes are provided on opposite sides of a solid polymer electrolyte membrane, and the outside thereof is clamped by a pair of separators, and nonconductive picture frame-shaped members 61 are arranged at the outer edge portions of the separators, for allowing increase and decrease of a space between separators, while sealing a gap between the separators.Type: GrantFiled: January 5, 2006Date of Patent: January 17, 2012Assignee: Honda Motor Co., Ltd.Inventors: Toshihiko Suenaga, Narutoshi Sugita, Takayuki Ogawa, Keisuke Andou, Masajiro Inoue
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Patent number: 8007950Abstract: Each of the fuel cell units making up a fuel cell stack includes a first separator, a second separator, and a third separator. A predetermined number of load receivers are provided integrally on outer ends of the first separator, the second separator, and the third separator. The load receivers of the second separator protrude toward the casing beyond the other load receivers. Resin clips are inserted into the load receivers, such that the first separator, the second separator, and the third separator are fixed together by the resin clips.Type: GrantFiled: July 20, 2007Date of Patent: August 30, 2011Assignee: Honda Motor Co., Ltd.Inventors: Masaaki Sakano, Keisuke Andou
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Patent number: 7947208Abstract: An injection-molding method made up of a step of preparing a first die (41), a second die (46) and a third die (47), a step of sandwiching a separator proper (16) with the first die (41) and the second die (46), a step of molding a front side molded layer (32) by injecting silicone rubber (59) into the front side cavity (50) through a gate (52), a step of replacing the second die (46) with a third die (47) while the front side molded layer (32) is still soft, and a step of molding a rear side molded layer (34) by piercing the front side molded layer (32) with an injection pressure injecting the silicone rubber (59) through the gate (52) and filling a rear side cavity (63) with silicone rubber (59) through the through hole (30).Type: GrantFiled: June 1, 2010Date of Patent: May 24, 2011Assignee: Honda Motor Co., Ltd.Inventors: Mikihiko Kimura, Shinya Kawachi, Keisuke Andou, Tadashi Nishiyama, Daisuke Okonogi, Naoyuki Enjoji
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Publication number: 20100264558Abstract: An injection-molding method made up of a step of preparing a first die (41), a second die (46) and a third die (47), a step of sandwiching a separator proper (16) with the first die (41) and the second die (46), a step of molding a front side molded layer (32) by injecting silicone rubber (59) into the front side cavity (50) through a gate (52), a step of replacing the second die (46) with a third die (47) while the front side molded layer (32) is still soft, and a step of molding a rear side molded layer (34) by piercing the front side molded layer (32) with an injection pressure injecting the silicone rubber (59) through the gate (52) and filling a rear side cavity (63) with silicone rubber (59) through the through hole (30).Type: ApplicationFiled: June 1, 2010Publication date: October 21, 2010Applicant: HONDA MOTOR CO., LTD.Inventors: Mikihiko Kimura, Shinya Kawachi, Keisuke Andou, Tadashi Nishiyama, Daisuke Okonogi, Naoyuki Enjoji
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Publication number: 20100237538Abstract: An injection-molding method made up of a step of preparing a first die (41), a second die (46) and a third die (47), a step of sandwiching a separator proper (16) with the first die (41) and the second die (46), a step of molding a front side molded layer (32) by injecting silicone rubber (59) into the front side cavity (50) through a gate (52), a step of replacing the second die (46) with a third die (47) while the front side molded layer (32) is still soft, and a step of molding a rear side molded layer (34) by piercing the front side molded layer (32) with an injection pressure injecting the silicone rubber (59) through the gate (52) and filling a rear side cavity (63) with silicone rubber (59) through the through hole (30).Type: ApplicationFiled: June 1, 2010Publication date: September 23, 2010Applicant: HONDA MOTOR CO., LTD.Inventors: Mikihiko Kimura, Shinya Kawachi, Keisuke Andou, Tadashi Nishiyama, Daisuke Okonogi, Naoyuki Enjoji
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Patent number: 7749419Abstract: An injection-molding method including preparing a first die, a second die and a third die, sandwiching a separator proper with the first die and the second die, molding a front side molded layer by injecting silicone rubber into the front side cavity through a gate, replacing the second die with a third die while the front side molded layer is still soft, and molding a rear side molded layer by piercing the front side molded layer with an injection pressure injecting the silicone rubber through the gate and filling a rear side cavity with silicone rubber through the through hole.Type: GrantFiled: December 10, 2003Date of Patent: July 6, 2010Assignee: Honda Motor Co., Ltd.Inventors: Mikihiko Kimura, Shinya Kawachi, Keisuke Andou, Tadashi Nishiyama, Daisuke Okonogi, Naoyuki Enjoji
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Publication number: 20100119905Abstract: A fuel cell includes a plurality of fuel cell units, each fuel cell unit including an electrode assembly formed by disposing electrodes on both sides of an electrolyte, a pair of separators that sandwich the electrode assembly, and gas sealing members that are disposed at an outer peripheral portion of the electrode assembly, and that seal respective reaction gas flow passages that are formed between each separator and the electrode assembly. In one of the separators of each of the fuel cell units, a through path is formed that penetrates the separator in the thickness direction thereof, and the through path formed in one of the separators, of one of the fuel cell units and the through path formed in one of the separators of adjacent one of the fuel cell units are offset with each other as viewed in the thickness direction of the separators.Type: ApplicationFiled: November 13, 2009Publication date: May 13, 2010Applicant: HONDA MOTOR CO., LTD.Inventors: Hideaki KIKUCHI, Narutoshi SUGITA, Yoshihiro NAKANISHI, Tadashi NISHIYAMA, Keisuke ANDOU
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Patent number: 7638219Abstract: Anodes are provided on a porous resin film, a polymer electrolyte membrane is provided on the anodes, and cathodes are provided on the polymer electrolyte membrane to form a plurality of membrane electrode assemblies as power generation units. An electrically conductive member is connected to the cathode of a membrane electrode assembly, and a metal film is electrically connected to the anode of an adjacent membrane electrode assembly. The electrically conductive member has an expansion connected to the metal film. The cathode of the membrane electrode assembly and the anode of the adjacent membrane electrode assembly are electrically connected by the electrically conductive member and the metal film.Type: GrantFiled: March 8, 2004Date of Patent: December 29, 2009Assignee: Honda Motor Co., Ltd.Inventors: Takashi Komura, Yoichi Asano, Chikara Iwasawa, Ryoichiro Takahashi, Masaaki Sakano, Keisuke Andou, Kentaro Nagoshi
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Patent number: 7632597Abstract: A fuel cell includes a plurality of fuel cell units. Each fuel cell unit includes an electrode assembly having electrodes and an electrolyte, a pair of separators, and gas sealing members. At least two of the fuel cell units include at least two electrode assemblies and at least three separators. In each of the separators, reaction gas communication ports are provided. In one of the separators of one of the stacked fuel cell units that is located at the end in a direction of stacking, through paths are formed. In one of the separators of one of the stacked fuel cell units that is located at the other end in the direction of stacking, reaction gas communication paths are formed. Both the through paths and the reaction gas communication paths are formed in all separators that are located between two fuel cell units that are located at the ends.Type: GrantFiled: March 11, 2005Date of Patent: December 15, 2009Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Hideaki Kikuchi, Narutoshi Sugita, Yoshihiro Nakanishi, Tadashi Nishiyama, Keisuke Andou
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Patent number: 7553576Abstract: A fuel cell separator is provided which has in a peripheral part (30) gas passages (31, 31) for guiding reaction gases and reaction product passages (33) for guiding a reaction product. The separator (20) is made up of a central part (22) made of metal, a peripheral part (30) made of a resin material, and an elastic member (40) connecting the central part and the peripheral part together. As a result of the peripheral part being made of a resin material, the gas passages and product passages are resistant to corrosion.Type: GrantFiled: April 22, 2003Date of Patent: June 30, 2009Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Mikihiko Kimura, Shinya Kawachi, Keisuke Andou, Tadashi Nishiyama, Daisuke Okonogi
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Patent number: 7510795Abstract: In this fuel cell, among a pair of separators in which an electrically conductive portion which is made from an electrically conducting material is surrounded by an insulating portion which is made from an insulating material, a cell side terminal is provided in the inner surface of the insulating portion of at least one said separator, and extends from its interior circumferential side to its outer perimeter side, and is able to electrically connect the interior and exterior of the cell. This cell side terminal is made from a metallic plate, and its inner circumferential side end portion contacts the membrane electrode assembly, while its outer perimeter side end portion extends to the outer perimeter side of the insulating portion. This outer perimeter side end portion can be connected to a measurement side terminal.Type: GrantFiled: September 15, 2004Date of Patent: March 31, 2009Assignee: Honda Motor Co., Ltd.Inventors: Masaaki Sakano, Hideaki Kikuchi, Toshiaki Ariyoshi, Keisuke Andou
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Patent number: 7491355Abstract: A method for fabricating a seal-integrated separator for a fuel cell is presented, with which seals can be accurately positioned and the assembling time for the fuel cell units may be greatly reduced.Type: GrantFiled: December 30, 2005Date of Patent: February 17, 2009Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Masajiro Inoue, Nobuaki Kimura, Toshihiko Suenaga, Keisuke Andou
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Publication number: 20080305368Abstract: A fuel cell stack includes a load receiver provided at an outer end of a fuel cell unit, a guide receiver provided in a box, and a pressure receiver provided in at least one corner in the box. The guide receiver abuts against the load receiver for receiving the external load. The pressure receiver protrudes toward the fuel cell unit. The pressure receiver abuts against a corner of the fuel cell unit for receiving the load. The pressure receiver has a resin receiver, and the resin receiver abuts against a curved portion of the fuel cell unit for supporting the fuel cell unit.Type: ApplicationFiled: June 11, 2008Publication date: December 11, 2008Applicant: Honda Motor Co., Ltd.Inventors: Ken Takahashi, Ryoichi Yoshitomi, Daisuke Wachi, Keisuke Andou, Ayumu Ishizuka, Tadashi Nishiyama
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Publication number: 20080268319Abstract: Each of the fuel cell units making up a fuel cell stack includes a first separator, a second separator, and a third separator. A predetermined number of load receivers are provided integrally on outer ends of the first separator, the second separator, and the third separator. The load receivers of the second separator protrude toward the casing beyond the other load receivers. Resin clips are inserted into the load receivers, such that the first separator, the second separator, and the third separator are fixed together by the resin clips.Type: ApplicationFiled: July 20, 2007Publication date: October 30, 2008Applicant: Honda Motor Co., Ltd.Inventors: Masaaki Sakano, Keisuke Andou
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Patent number: 7422814Abstract: A fuel cell unit includes a plurality of fuel cells. Each of the fuel cells includes a plurality of power generation units. The power generation units are electrically connected in series for outputting a desired level of voltage. The fuel cells are stacked in a direction indicated by an arrow A for combining electrical currents outputted from the respective fuel cells, and the combined electric current is supplied to a power generation circuit. The power generation circuit is selectively connected to the fuel cells by switches.Type: GrantFiled: January 29, 2004Date of Patent: September 9, 2008Assignee: Honda Motor Co., Ltd.Inventors: Naoyuki Enjoji, Hidehiko Takase, Keisuke Andou
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Patent number: 7335434Abstract: A separator assembly for a fuel cell stack includes a diffusion layer including a porous metal body for diffusing and supplying fuel or oxidizer to an electrode of the fuel cell stack, and a separator including a metal plate which is disposed adjacent to the diffusion layer, and which is provided for separating the fuel and the oxidizer from each other. The diffusion layer and the separator are welded together by laser welding. Flow passage partitions of the metal forming the diffusion layer, which are formed by melting the metal by irradiation by a laser beam and by solidifying the metal, may be formed in the diffusion layer so as to define a flow passage for the fuel or oxidizer in the diffusion layer.Type: GrantFiled: October 15, 2003Date of Patent: February 26, 2008Assignee: Honda Motor Co., Ltd.Inventors: Kentaro Nagoshi, Keisuke Andou, Takeshi Matsubara