Patents by Inventor Mikihiko Kimura
Mikihiko Kimura 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: 8383288Abstract: The present invention provides a resin molding method for fuel cell separator. The fuel cell separator includes: a resin mold region formed inward a predetermined distance from an edge; a through hole formed at the resin mold region; and a front end region formed between the through hole and the edge at the resin mold region. The resin molding method includes: a die set process that the resin mold region of the fuel cell separator is set in the die such that the front end region is held by a pair of anti-deformation pins of the die; and a resin filling process that a resin is filled in the die, wherein the resin is molded on the resin mold region of the fuel cell separator so as to be filled in the through hole, and a resin member is thereby molded on the resin mold region so as to extend outward from the edge.Type: GrantFiled: February 4, 2009Date of Patent: February 26, 2013Assignee: Honda Motor Co., Ltd.Inventors: Akihiro Nonogaki, Satoshi Oyama, Mikihiko Kimura
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Patent number: 8137864Abstract: A fuel cell according to the present invention includes a power generation cell. The power generation cell is formed by sandwiching a membrane electrode assembly between a first metal separator and a second metal separator. An oxygen-containing gas flow field is formed on one surface of the first metal separator, and a coolant flow field is formed on the other surface of the first metal separator. The first metal separator includes a corrugated metal plate. A resin frame member is provided on one surface of the metal plate, and a rubber seal is provided on the other surface of the metal plate. An oxygen-containing gas supply passage, an oxygen-containing gas discharge passage, a coolant supply passage, a coolant discharge passage, a fuel gas supply passage, and a fuel gas discharge passage extend through the metal plate, the resin frame member, and the rubber seal.Type: GrantFiled: August 7, 2008Date of Patent: March 20, 2012Assignee: Honda Motor Co., Ltd.Inventors: Eri Ishikawa, Seiji Sugiura, Mikihiko Kimura, Akihiro Nonogaki
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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: 7776490Abstract: A seal member is formed integrally on surfaces of a metal separator of a fuel cell. The seal member includes an outer seal and an inner seal provided on a surface of the metal separator. A plurality of closure seals are formed integrally with an inner edge of the inner seal. The closure seals close a space between the inner seal and a protrusion forming a fuel gas flow field.Type: GrantFiled: August 27, 2004Date of Patent: August 17, 2010Assignee: Honda Motor Co., Ltd.Inventors: Seiji Sugiura, Mikihiko Kimura, Ryugo Suzuki, Masahiro Mohri, Takaki Nakagawa, Hiroshi Morikawa, Hiromichi Yoshida, Takeo Abe
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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: 20090197146Abstract: The present invention provides a resin molding method for fuel cell separator. The fuel cell separator includes: a resin mold region formed inward a predetermined distance from an edge; a through hole formed at the resin mold region; and a front end region formed between the through hole and the edge at the resin mold region. The resin molding method includes: a die set process that the resin mold region of the fuel cell separator is set in the die such that the front end region is held by a pair of anti-deformation pins of the die; and a resin filling process that a resin is filled in the die, wherein the resin is molded on the resin mold region of the fuel cell separator so as to be filled in the through hole, and a resin member is thereby molded on the resin mold region so as to extend outward from the edge.Type: ApplicationFiled: February 4, 2009Publication date: August 6, 2009Applicant: HONDA MOTOR CO., LTD.Inventors: Akihiro NONOGAKI, Satoshi Oyama, Mikihiko Kimura
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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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Publication number: 20090042086Abstract: A fuel cell according to the present invention includes a power generation cell. The power generation cell is formed by sandwiching a membrane electrode assembly between a first metal separator and a second metal separator. An oxygen-containing gas flow field is formed on one surface of the first metal separator, and a coolant flow field is formed on the other surface of the first metal separator. The first metal separator includes a corrugated metal plate. A resin frame member is provided on one surface of the metal plate, and a rubber seal is provided on the other surface of the metal plate. An oxygen-containing gas supply passage, an oxygen-containing gas discharge passage, a coolant supply passage, a coolant discharge passage, a fuel gas supply passage, and a fuel gas discharge passage extend through the metal plate, the resin frame member, and the rubber seal.Type: ApplicationFiled: August 7, 2008Publication date: February 12, 2009Applicant: Honda Motor Co., Ltd.Inventors: Eri ISHIKAWA, Seiji SUGIURA, Mikihiko KIMURA, Akihiro NONOGAKI
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Patent number: 7396609Abstract: A power generation cell includes a membrane electrode assembly and first and second metal separators sandwiching the membrane electrode assembly. The first metal separator is a thin metal plate. A first seal member is formed integrally around the outer end of the first metal separator. A portion defining an orifice is provided in an outer marginal region of the first metal separator. The thickness H1 of the first seal member in the area covering the portion defining the orifice is larger than the thickness of the H2 of the first seal member in the area covering other portions.Type: GrantFiled: March 25, 2005Date of Patent: July 8, 2008Assignee: Honda Motor Co., Ltd.Inventors: Narutoshi Sugita, Daisuke Okonogi, Mikihiko Kimura, Shuhei Goto
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Publication number: 20070231662Abstract: A fuel cell includes first and second separators sandwiching a membrane electrode assembly. The first and second separators include first and second metal plates, first and second insulating bushings for positioning the first and second metal plates in alignment with each other, and first and second seal members formed integrally with the first and second metal plates. The first and second seal members are formed by injection molding on the first and second metal plates using the first and second insulating bushings as insert members.Type: ApplicationFiled: March 28, 2007Publication date: October 4, 2007Applicant: Honda Motor Co., Ltd.Inventors: Shuhei Goto, Seiji Sugiura, So Fujiwara, Daisuke Okonogi, Narutoshi Sugita, Mikihiko Kimura
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Publication number: 20060073226Abstract: 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, a step of 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: ApplicationFiled: December 10, 2003Publication date: April 6, 2006Applicant: Honda Motor Co., Ltd.Inventors: Mikihiko Kimura, Shinya Kawachi, Keisuke Andou, Tadashi Nishiyama, Daisuke Okonogi, Naoyuki Enjoji
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Publication number: 20050271926Abstract: A power generation cell includes a membrane electrode assembly and first and second metal separators sandwiching the membrane electrode assembly. The first metal separator is a thin metal plate. A first seal member is formed integrally around the outer end of the first metal separator. A portion defining an orifice is provided in an outer marginal region of the first metal separator. The thickness H1 of the first seal member in the area covering the portion defining the orifice is larger than the thickness of the H2 of the first seal member in the area covering other portions.Type: ApplicationFiled: March 25, 2005Publication date: December 8, 2005Applicant: Honda Motor Co., Ltd.Inventors: Narutoshi Sugita, Daisuke Okonogi, Mikihiko Kimura, Shuhei Goto
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Publication number: 20050142414Abstract: 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: ApplicationFiled: April 22, 2003Publication date: June 30, 2005Inventors: Mikihiko Kimura, Shinya Kawachi, Keisuke Andou, Tadashi Nishiyama, Daisuke Okonogi
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Publication number: 20050118484Abstract: A fuel cell separator (20) having a central part (22) and an outer peripheral part (30). The central part is a metal member made of stainless steel or the like. Multiple gas passages (31, 32) and multiple product water passages (33) are formed in the peripheral part. To ensure corrosion resistance of the gas passages and the product water passages, the peripheral part is a rubber member made of silicone rubber. A projecting central seal part (41) for surrounding the central part is formed integrally with the peripheral part.Type: ApplicationFiled: June 27, 2003Publication date: June 2, 2005Applicant: Honda Giken Kogyo Kabushiki KaishaInventors: Shinya Kawachi, Mikihiko Kimura
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Publication number: 20050079400Abstract: A seal member is formed integrally on surfaces of a metal separator of a fuel cell. The seal member includes an outer seal and an inner seal provided on a surface of the metal separator. A plurality of closure seals are formed integrally with an inner edge of the inner seal. The closure seals close a space between the inner seal and a protrusion forming a fuel gas flow field.Type: ApplicationFiled: August 27, 2004Publication date: April 14, 2005Applicant: Honda Motor Co., Ltd.Inventors: Seiji Sugiura, Mikihiko Kimura, Ryugo Suzuki, Masahiro Mohri, Takaki Nakagawa, Hiroshi Morikawa, Hiromichi Yoshida, Takeo Abe
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Publication number: 20030143451Abstract: A fuel cell metallic separator adapted to constitute a partition wall between single cells for a fuel cell stack, includes a metallic plate and a resin portion made of a thermoplastic or thermosetting resin. At least either upper and lower peripheral edge portions or left and right peripheral edge portions of the metallic plate are integrally formed with the resin portion. The metallic plate is provided with a passage for fuel gas, oxide gas or coolant for a fuel cell and the resin portion has communication ports provided for allowing fuel gas, oxide gas or coolant to pass therethrough. The metallic plate and the resin portion are formed integrally through injection molding.Type: ApplicationFiled: January 29, 2003Publication date: July 31, 2003Applicant: HONDA GIKEN KOGYO KABUSHIKI KAISHAInventors: Keisuke Andou, Naoyuki Enjoji, Hideaki Kikuchi, Tadashi Nishiyama, Mikihiko Kimura, Shinya Kawachi
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Patent number: 6428306Abstract: A mold for molding a thermoplastic resin comprising a pair of a male mold and a female mold in that a molten mass of a thermoplastic resin is supplied into a molding cavity formed by the male and female molds through a conduit for a resin melt, and after the completion of the supply of the resin, the supplied resin is shaped while shutting off the conduit for a resin melt with a pin for opening and closing the conduit for a resin melt, in which the conduit has a through-mouth of a nozzle, and a warmed conduit connected with the upstream side of the through-mouth, and the mold has a movable pin for opening and closing the conduit for a resin melt, the first heater to heat the wall of the conduit for a resin melt, and the second heater to heat the through-mouth.Type: GrantFiled: December 10, 1999Date of Patent: August 6, 2002Assignees: Sumitomo Chemical Company, Limited, Honda Giken Kogyo Kabushiki KaishaInventors: Takeo Kitayama, Atsushi Takeuchi, Yasuhiro Toguchi, Mikihiko Kimura
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Patent number: 6299807Abstract: An object is to provide a thermoplastic resin molded article concurrently having excellent heat insulating properties, rigidity, and lightness, and to provide a method for producing the same. A molded article made from a thermoplastic molding material comprises: a multilayer structure portion having a surface layer composed of a non-foamed type of said molding material and an internal layer composed of a foamed type of said molding material; and a portion composed of only a non-foamed type of said molding material.Type: GrantFiled: August 9, 1999Date of Patent: October 9, 2001Assignees: Honda Giken Kogyo Kabushiki Kaisha, Chisso CorporationInventors: Mikihiko Kimura, Michio Yoshizaki, Kouichi Honda