Patents by Inventor Yuu Inatomi
Yuu Inatomi 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: 8557456Abstract: The fuel cell system of the present invention has: a fuel cell including an electromotive unit comprising a fuel electrode, an oxidant electrode, and an electrolyte sandwiched by these electrodes; a fuel supply unit for supplying a fuel to the fuel electrode; and an oxidant supply unit for supplying an oxidant to the oxidant electrode. A product reduction mechanism unit is provided to reduce a fuel oxidation product produced at the fuel electrode when power is generated by the fuel cell. Based on this, decline in energy density due to the fuel and the fuel oxidation product and by-product can be prevented, without having a mechanism to discharge the fuel and the fuel oxidation product and by-product to the outside of the fuel cell.Type: GrantFiled: February 6, 2004Date of Patent: October 15, 2013Assignee: Panasonic CorporationInventors: Nobuhiko Hojo, Yuu Inatomi, Yukihiro Okada
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Patent number: 8034484Abstract: An electrochemical device of the present invention comprises a positive electrode, a negative electrode and an electrolyte, wherein at least one of the positive electrode and the negative electrode includes a compound having a structure represented by the general formula (1): It is thereby possible to obtain a lightweight and high energy-density electrochemical device having an excellent cycle characteristic.Type: GrantFiled: April 20, 2004Date of Patent: October 11, 2011Assignee: Panasonic CorporationInventors: Yuu Inatomi, Mikinari Shimada
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Patent number: 7714531Abstract: A power system including an electrochemical device, a load device, a power generator, and a charge/discharge controller of the electrochemical device. The electrochemical device includes a positive electrode, a negative electrode, and a liquid electrolyte or a solid electrolyte. The charge/discharge curve of the electrochemical device has at least one step, and a given step of the at least one step has an inflection point. A voltage corresponding to the inflection point or a point adjacent to the inflection point is set as a threshold value, and the charge/discharge controller is configured to control charge/discharge of the electrochemical device such that the voltage of the electrochemical device approaches the threshold value.Type: GrantFiled: March 14, 2005Date of Patent: May 11, 2010Assignee: Panasonic CorporationInventors: Masaaki Kuranuki, Yuu Inatomi
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Patent number: 7604887Abstract: The electrolyte membrane of the present invention is an electrolyte membrane (1) having ionic conductivity that includes a base material (2) and organic molecules having ion exchange groups, wherein the organic molecules are chemically bonded to the surface of the base material (2) to form an organic layer (3), and ions are conducted via the ion exchange groups in the organic layer (3). By providing this type of electrolyte membrane, it is possible to obtain an electrolyte membrane having ionic conductivity whose configuration is different to that of a conventional electrolyte membrane.Type: GrantFiled: July 24, 2003Date of Patent: October 20, 2009Assignee: Panasonic CorporationInventors: Norihisa Mino, Nobuhiko Hojo, Aoi Tanaka, Takashi Akiyama, Yukihiro Okada, Kohji Yuasa, Yuu Inatomi, Taisuke Yamamoto
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Publication number: 20090017379Abstract: A secondary battery is equipped with a reaction container and a current collector that is built in at least one of a positive electrode side and a negative electrode side. The positive electrode side and the negative electrode side are separated from each other by an ion conductive separator. In the reaction container, an organic matter excluding a metal complex and a radical and capable of reversibly being electrochemically oxidized and reduced is used as an active material together with a supporting salt. The active material and the supporting salt form a liquid. On the surface of the current collector, the active material contained in the liquid is charged and discharged.Type: ApplicationFiled: May 30, 2006Publication date: January 15, 2009Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventors: Yuu Inatomi, Nobuhiko Hojo, Masaaki Kuranuki
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Publication number: 20080113271Abstract: A non-aqueous electrolyte secondary battery of the present invention includes a pelletized negative electrode. An active material for the negative electrode includes a first phase mainly composed of Si and a second phase containing a silicide of a transition metal. At least one of the first and second phases is amorphous or low-crystalline. The mean particle size (D50) is 0.50 to 20 ?m, and the 10% diameter (D10) and 90% diameter (D90) in a volume cumulative particle size distribution are respectively 0.10 to 5.0 ?m and 5.0 to 80 ?m. The battery is improved in density and current collecting properties of the negative electrode, has a high capacity, and has an excellent cycle life.Type: ApplicationFiled: March 29, 2006Publication date: May 15, 2008Inventors: Tomohiro Ueda, Youko Sano, Tetsuo Nanno, Yuu Inatomi, Teruaki Yamamoto, Yasuhiko Bito
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Patent number: 7282298Abstract: An electrochemical device for providing an electric energy by converting an electron transfer involved in an oxidation-reduction reaction into an electric energy comprising a positive electrode, a negative electrode and an electrolyte, wherein at least one of the positive and negative electrodes comprises a compound having a structure represented by the general formula (1):Type: GrantFiled: August 27, 2003Date of Patent: October 16, 2007Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yuu Inatomi, Mikinari Shimada, Nobuhiko Hojo
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Publication number: 20070202370Abstract: A power system including an electrochemical device, a load device, a power generator, and a charge/discharge controller of the electrochemical device. The electrochemical device includes a positive electrode, a negative electrode, and a liquid electrolyte or a solid electrolyte. The charge/discharge curve of the electrochemical device has at least one step, and a given step of the at least one step has an inflection point. A voltage corresponding to the inflection point or a point adjacent to the inflection point is set as a threshold value, and the charge/discharge controller is configured to control charge/discharge of the electrochemical device such that the voltage of the electrochemical device approaches the threshold value.Type: ApplicationFiled: March 14, 2005Publication date: August 30, 2007Inventors: Masaaki Kuranuki, Yuu Inatomi
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Publication number: 20060199047Abstract: The fuel cell system of the present invention has: a fuel cell including an electromotive unit comprising a fuel electrode, an oxidant electrode, and an electrolyte sandwiched by these electrodes; a fuel supply unit for supplying a fuel to the fuel electrode; and an oxidant supply unit for supplying an oxidant to the oxidant electrode. A product reduction mechanism unit is provided to reduce a fuel oxidation product produced at the fuel electrode when power is generated by the fuel cell. Based on this, decline in energy density due to the fuel and the fuel oxidation product and by-product can be prevented, without having a mechanism to discharge the fuel and the fuel oxidation product and by-product to the outside of the fuel cell.Type: ApplicationFiled: February 6, 2004Publication date: September 7, 2006Inventors: Nobuhiko Hojo, Yuu Inatomi, Yukihiro Okada
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Publication number: 20050260478Abstract: The electrolyte membrane of the present invention is an electrolyte membrane (1) having ionic conductivity that includes a base material (2) and organic molecules having ion exchange groups, wherein the organic molecules are chemically bonded to the surface of the base material (2) to form an organic layer (3), and ions are conducted via the ion exchange groups in the organic layer (3). By providing this type of electrolyte membrane, it is possible to obtain an electrolyte membrane having ionic conductivity whose configuration is different to that of a conventional electrolyte membrane.Type: ApplicationFiled: July 24, 2003Publication date: November 24, 2005Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO. LTDInventors: Norihisa Mino, Nobuhiko Hojo, Aoi Tanaka, Takashi Akiyama, Okada Yukihiro, Kohji Yuasa, Yuu Inatomi, Taisuke Yamamoto
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Publication number: 20040214082Abstract: An electrochemical device of the present invention comprises a positive electrode, a negative electrode and an electrolyte, wherein at least one of the positive electrode and the negative electrode includes a compound having a structure represented by the general formula (1): 1Type: ApplicationFiled: April 20, 2004Publication date: October 28, 2004Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTDInventors: Yuu Inatomi, Mikinari Shimada
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Publication number: 20040197653Abstract: An electrode for an electrochemical device includes an organic compound that serves as an active material and a substrate carrying the organic compound. The substrate and the organic compound are held together by a covalent bond. Accordingly, it is possible to suppress the dissolving of the active material into an electrolyte.Type: ApplicationFiled: April 1, 2004Publication date: October 7, 2004Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Yuu Inatomi, Mikinari Shimada, Norihisa Mino, Nobuhiko Hojo
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Publication number: 20040045818Abstract: An electrochemical device for providing an electric energy by converting an electron transfer involved in an oxidation-reduction reaction into an electric energy comprising a positive electrode, a negative electrode and an electrolyte, wherein at least one of the positive and negative electrodes comprises a compound having a structure represented by the general formula (1): 1Type: ApplicationFiled: August 27, 2003Publication date: March 11, 2004Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventors: Yuu Inatomi, Mikinari Shimada, Nobuhiko Hojo