Patents by Inventor Kei Matsuoka
Kei Matsuoka 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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Publication number: 20080107955Abstract: A direct type fuel cell power generator comprises an anode electrode including an anode catalyst layer, a cathode electrode including a cathode catalyst layer, a fuel container comprising at least two electromotive portion units, each of which comprises an electrolyte film disposed between the anode electrode and the cathode electrode, the fuel container housing a fuel therein, and a fuel flow path to supply a fuel in the electromotive portion unit. In the power generator, the fuel flow path has a flow path which produces flow-back again from the fuel container to the first electromotive portion unit via the first electromotive portion unit and the second electromotive portion unit, and which is not branched during the flow-back.Type: ApplicationFiled: January 8, 2008Publication date: May 8, 2008Inventors: Masato Akita, Takashi Yamauchi, Masahiro Takashita, Eiichi Sakaue, Kei Matsuoka
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Patent number: 7364811Abstract: In a housing of a fuel cell are arranged an electromotive unit, a fuel tank, an anode passage through which the fuel is circulated between the electromotive unit and the fuel tank, an air supply section which supplies air to the electromotive unit, and a cathode passage through which products from the electromotive unit are discharged. The cathode passage has a first passage extending from the electromotive unit, branch passages which diverge from the first passage, a reservoir portion which communicates with the first passage and lower ends of the branch passages and is stored with water discharged from the first passage and water condensed in the branch passages, and a recovery passage which guides the water stored in the reservoir portion into the fuel tank. A radiator section is provided on the branch passages.Type: GrantFiled: September 21, 2004Date of Patent: April 29, 2008Assignee: Kabushiki Kaisha ToshibaInventors: Kentaro Tomioka, Kei Matsuoka, Hiroaki Hirazawa, Yuusuke Sato, Eiichi Sakaue
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Patent number: 7351489Abstract: A fuel cell unit is provided with a fuel cell for electric power generation, a mixing tank housing a mixture of fuel and exhaust from the fuel cell, a fuel tank housing the fuel, a pump delivering the mixture and air to the fuel cell, a casing housing the fuel cell, the pump and at least one of the fuel tank and the mixing tank and a partition partitioning an interior of the casing into a first compartment housing the fuel cell and a second compartment. The partition is provided with first, second and third flow paths. The first flow path connects the mixing tank to the fuel cell. The second flow path connects the fuel cell to the pump. The third flow path connects the pump to the mixing tank.Type: GrantFiled: March 30, 2004Date of Patent: April 1, 2008Assignee: Kabushiki Kaisha ToshibaInventors: Yuusuke Sato, Kaname Miyazaki, Eiichi Sakaue, Kei Matsuoka, Atsushi Sadamoto
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Patent number: 7351486Abstract: A direct type fuel cell power generator comprises an anode electrode including an anode catalyst layer, a cathode electrode including a cathode catalyst layer, a fuel container comprising at least two electromotive portion units, each of which comprises an electrolyte film disposed between the anode electrode and the cathode electrode, the fuel container housing a fuel therein, and a fuel flow path to supply a fuel in the electromotive portion unit. In the power generator, the fuel flow path has a flow path which produces flow-back again from the fuel container to the first electromotive portion unit via the first electromotive portion unit and the second electromotive portion unit, and which is not branched during the flow-back.Type: GrantFiled: November 28, 2003Date of Patent: April 1, 2008Assignee: Kabushiki Kaisha ToshibaInventors: Masato Akita, Takashi Yamauchi, Masahiro Takashita, Eiichi Sakaue, Kei Matsuoka
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Publication number: 20080075988Abstract: A fuel cell system includes a plurality of fuel cell stacks; a mixing tank in which a liquid fuel mixture is stored; a plurality of liquid feed pumps configured to feed the liquid fuel mixture to the fuel cell stacks; a switch unit configured to switch on and off of a load connected with the fuel cell stacks: and a controller configured to control a feed of the fuel mixture to the fuel cell stacks, according to an ambient temperature of the fuel cell stacks.Type: ApplicationFiled: September 18, 2007Publication date: March 27, 2008Applicant: Kabushiki Kaisha ToshibaInventors: Takahiro SUZUKI, Masato Akita, Kei Matsuoka, Ryosuke Yagi, Akihiro Ozeki, Yuusuke Sato
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Publication number: 20080032167Abstract: A fuel cartridge for a fuel cell includes a casing configured to detachably connect to a predetermined position on the cell and having a connecting port communicated with a supply port of the cell, a fuel holding pack belt housed in the casing and including fuel holding packs holding fuels for the cell, respectively, the packs being arranged in a predetermined direction and connected to one another such that the belt can flex along the predetermined direction, and a belt conveying mechanism configured to convey the belt in the casing in the predetermined direction such that the packs pass over the connecting port of the casing. The pack is opened at the connecting port of the casing by a pack opening mechanism and the fuel in the pack is supplied to the supply port of the cell. The cell includes a fuel absorber in the fuel supply port.Type: ApplicationFiled: August 1, 2007Publication date: February 7, 2008Inventors: Kei Matsuoka, Atsushi Sadamoto
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Patent number: 7318969Abstract: According to one embodiment, a fuel cell includes an electromotive section, a fuel tank, an anode line through which a fuel is circulated between the electromotive section and the fuel tank, an air supply section, a cathode line which is connected to the electromotive section and through which products from the electromotive section are discharged, a cooler which is provided in the cathode line, cools the products, and condenses water, and an exhaust filter provided in the cathode line. The fuel cell has a reservoir portion which stores the condensed water and water discharged from the electromotive section, a first recovery line through which the water stored in the reservoir portion is guided into the fuel tank, and a second recovery line through which the water produced in the cathode line is guided into the reservoir portion between the cooler and the exhaust filter.Type: GrantFiled: February 7, 2006Date of Patent: January 15, 2008Assignee: Kabushiki Kaisha ToshibaInventors: Nobuyasu Tajima, Eiichi Sakaue, Kei Matsuoka
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Publication number: 20060137579Abstract: A gasification system has a gasification furnace (1) for gasifying wastes to produce a combustible gas and a combustion furnace (2) for combusting char and/or tar produced by gasification in the gasification furnace (1). The gasification system also has a return line for returning a combustion gas discharged from the combustion furnace (2) to the gasification furnace (1) and the combustion furnace (2).Type: ApplicationFiled: July 23, 2004Publication date: June 29, 2006Inventors: Hiroyuki Fujimura, Takahiro Oshita, Norihisa Miyoshi, Seiichiro Toyoda, Kei Matsuoka, Tatsuya Hasegawa
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Publication number: 20060134487Abstract: A direct methanol fuel cell unit is provided with a fuel cell including an anode, a cathode with a hydrophobic microporous layer, an electrolyte membrane put in-between, and a fuel supply path supplying fuel to the anode. The fuel supply path is provided with an upwind water barrier preventing back-diffusion of water and a gas flow path channeling gas generated at the anode and disposed between the barrier and the anode. A water-rich zone is formed between the water barrier and the cathode microporous layer. Water loss from either side of this zone is eliminated or minimized, thereby permitting direct use of highly concentrated methanol in the fuel flow path with good fuel efficiency and power performance. The cell unit can be applied equally well to both an active circulating air cathode and an air-breathing cathode.Type: ApplicationFiled: December 17, 2004Publication date: June 22, 2006Inventors: Chao-Yang Wang, Guoqiang Lu, Wenpeng Liu, Fuqiang Liu, Yuusuke Sato, Eiichi Sakaue, Kei Matsuoka
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Publication number: 20050208352Abstract: A fuel cell system is provided with a fuel cell stack composed of one or more fuel cells, a discharging flow path for conducting an exhaust from the fuel cells connected to the fuel cells and a radiator for cooling the exhaust to a controlled temperature.Type: ApplicationFiled: March 8, 2005Publication date: September 22, 2005Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Yuusuke Sato, Eiichi Sakaue, Kei Matsuoka, Kentato Tomioka
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Publication number: 20050208359Abstract: A fuel cell system is provided with a fuel cell having an anode and a cathode; a mixing tank containing a mixture of methanol and water; a circulating flow path linking the mixing tank and the anode, the circulating flow path supplying the mixture to the anode and recycling an exhaust fluid exhausted from the anode; and a gas-liquid separator disposed on the circulating flow path, the gas-liquid separator separating a gas phase from a liquid phase of the exhaust fluid.Type: ApplicationFiled: March 7, 2005Publication date: September 22, 2005Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Yuusuke Sato, Hiroaki Hirazawa, Eiichi Sakaue, Kei Matsuoka, Atsushi Sadamoto
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Patent number: 6921442Abstract: The present invention relates to a Ni base alloy having sufficient strength at high temperatures and high corrosion resistance at high temperatures in a high-temperature composite corrosive environment in which chlorination or sulfidation occurs simultaneously with high-temperature oxidation, without excessive cooling or surface protection. According to the present invention, a Ni base alloy having high-temperature strength and corrosion resistance includes Cr in a range of from 25 to 40 weight %, Al in a range of from 1.5 to 2.5 weight %, C in a range of from 0.1 to 0.5 weight %, W of 15 weight % or less, Mn of 2.0 weight % or less, Si in a range of from 0.3 to 6 weight %, Fe of 5% or less, and Ni of rest except inevitable impurities. When strength at high temperatures is allowed to be small, W is in a range of from 0 to 8%, and Si is in a range of from 0.3 to 1% or from 1 to 6%. In order to enhance strength at high temperatures, W is in a range of from 8 to 15, and Si is in a range of from 0.Type: GrantFiled: October 24, 2001Date of Patent: July 26, 2005Assignees: Ebara Corporation, Daido Tokushuko Kabushiki KaishaInventors: Manabu Noguchi, Kei Matsuoka, Hiroshi Yakuwa, Akira Uchino, Hideyuki Sakamoto, Michio Okabe, Yoshiyuki Sawada, Shigeki Ueta
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Patent number: 6917521Abstract: An electronic apparatus is provided with a housing containing a heat generating component, and a blower unit contained in the housing and used to cool the heat generating component. The blower unit includes an impeller, and a casing containing the impeller. The casing has suction ports, a chamber located around the impeller and a discharge port located at the downstream end of the chamber. The chamber has a depth gradually increased radially away from the impeller.Type: GrantFiled: December 26, 2002Date of Patent: July 12, 2005Assignee: Kabushiki Kaisha ToshibaInventors: Kentaro Tomioka, Kenichi Ishikawa, Katsumi Hisano, Kei Matsuoka, Hideyuki Toma
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Publication number: 20050079398Abstract: In a housing of a fuel cell are arranged an electromotive unit, a fuel tank, an anode passage through which the fuel is circulated between the electromotive unit and the fuel tank, an air supply section which supplies air to the electromotive unit, and a cathode passage through which products from the electromotive unit are discharged. The cathode passage has a first passage extending from the electromotive unit, branch passages which diverge from the first passage, a reservoir portion which communicates with the first passage and lower ends of the branch passages and is stored with water discharged from the first passage and water condensed in the branch passages, and a recovery passage which guides the water stored in the reservoir portion into the fuel tank. A radiator section is provided on the branch passages.Type: ApplicationFiled: September 21, 2004Publication date: April 14, 2005Applicant: Kabushiki Kaisha ToshibaInventors: Kentaro Tomioka, Kei Matsuoka, Hiroaki Hirazawa, Yuusuke Sato, Eiichi Sakaue
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Publication number: 20050079394Abstract: In a housing of a fuel cell are arranged an electromotive unit, a fuel tank, a first piping through which the fuel is circulated between the electromotive unit and the fuel tank, an air supply section which supplies air to the electromotive unit, and a second piping through which products from the electromotive unit are discharged. The first and second pipings are provided with first and second radiator sections, respectively. A cooling fan is located between the first and second radiator sections and circulates air through the radiator sections.Type: ApplicationFiled: September 21, 2004Publication date: April 14, 2005Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Kentaro Tomioka, Kei Matsuoka, Hiroaki Hirazawa, Yuusuke Sato, Eiichi Sakaue
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Publication number: 20050069744Abstract: A fuel cell has an electromotive unit which generates power based on a chemical reaction, a fuel tank which contains a fuel and supplies the fuel to the electromotive unit, and an air supply section which supplies air to the electromotive unit. The electromotive unit has cells laminated to one another and each having an anode and a cathode opposed to each other with an electrically conductive membrane therebetween, a pair of end faces situated individually at two opposite ends of the cells in the direction of lamination thereof and extending across the lamination direction, and a plurality of side faces extending in the cell lamination direction. Radiator fins for cooling the electromotive unit are arranged on the side faces not including the end faces.Type: ApplicationFiled: September 21, 2004Publication date: March 31, 2005Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Kentaro Tomioka, Kei Matsuoka, Norihiro Tomimatsu
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Publication number: 20040247979Abstract: A fuel cell unit is provided with a fuel cell for electric power generation, a mixing tank housing a mixture of fuel and exhaust from the fuel cell, a fuel tank housing the fuel, a pump delivering the mixture and air to the fuel cell, a casing housing the fuel cell, the pump and at least one of the fuel tank and the mixing tank and a partition partitioning an interior of the casing into a first compartment housing the fuel cell and a second compartment. The partition is provided with first, second and third flow paths. The first flow path connects the mixing tank to the fuel cell. The second flow path connects the fuel cell to the pump. The third flow path connects the pump to the mixing tank.Type: ApplicationFiled: March 30, 2004Publication date: December 9, 2004Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Yuusuke Sato, Kaname Miyazaki, Eiichi Sakaue, Kei Matsuoka, Atsushi Sadamoto
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Publication number: 20040247499Abstract: The liquid fuel synthesis system according to the present invention includes a gas purifying apparatus (102) for adjusting components of a synthesis gas containing hydrogen and carbon monoxide or a synthesis gas containing hydrogen, carbon monoxide and carbon dioxide to produce a purified gas, and a liquid fuel synthesis apparatus (300) for synthesizing a liquid fuel (309) using, as a raw material, the purified gas (301a) produced in the gas purifying apparatus. The gas purifying apparatus includes a hydrogen separating apparatus (120) and a bypass line (406) which bypasses the hydrogen separating apparatus. A part of the synthesis gas is passed through the hydrogen separating apparatus to produce high-purity hydrogen (j), and the produced high-purity hydrogen (j) is mixed with the synthesis gas which has passed through the bypass line to adjust the ratio of hydrogen to carbon monoxide in the purified gas or the ratio between hydrogen, carbon monoxide and carbon dioxide in the purified gas.Type: ApplicationFiled: July 23, 2004Publication date: December 9, 2004Inventors: Kei Matsuoka, Akira Uchino, Yukihiro Kobayashi
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Publication number: 20040166393Abstract: A direct type fuel cell power generator comprises an anode electrode including an anode catalyst layer, a cathode electrode including a cathode catalyst layer, a fuel container comprising at least two electromotive portion units, each of which comprises an electrolyte film disposed between the anode electrode and the cathode electrode, the fuel container housing a fuel therein, and a fuel flow path to supply a fuel in the electromotive portion unit. In the power generator, the fuel flow path has a flow path which produces flow-back again from the fuel container to the first electromotive portion unit via the first electromotive portion unit and the second electromotive portion unit, and which is not branched during the flow-back.Type: ApplicationFiled: November 28, 2003Publication date: August 26, 2004Inventors: Masato Akita, Takashi Yamauchi, Masahiro Takashita, Eiichi Sakaue, Kei Matsuoka
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Publication number: 20040166389Abstract: A fuel cell system is provided with a direct methanol fuel cell having an anode, a cathode and an electrolyte membrane put therebetween, a fuel supply unit supplying fuel to the anode, an air supply unit supplying air to the cathode and a heat exchanger exchanging heat between the fuel supplied by the fuel supply unit to the anode and an exhaust exhausted from the fuel cell.Type: ApplicationFiled: November 21, 2003Publication date: August 26, 2004Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Kei Matsuoka, Masato Akita, Hiroaki Hirazawa, Yuusuke Sato