Patents by Inventor Shoji Otoshi

Shoji Otoshi 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).

  • Publication number: 20050175887
    Abstract: The invention relates to a fuel electrode for high-temperature solid electrolyte fuel cells and a process for manufacture of the electrode. The fuel electrode of the invention is a porous element composed of a high-melting metal, such as ruthenium, osmium, rhodium or iridium, or an alloy containing the metal. The process for manufacture of the fuel electrode comprises coating an electrode material with a solution or dispersion of the high-melting metal and/or its chloride, sintering the same and finally reducing the product.
    Type: Application
    Filed: February 28, 2005
    Publication date: August 11, 2005
    Applicant: Osaka Gas Company Limited
    Inventors: Masamichi Ippommatsu, Minoru Suzuki, Hirokazu Sasaki, Shoji Otoshi, Hisao Ohnishi
  • Patent number: 6864204
    Abstract: The invention relates to a fuel electrode for high-temperature solid electrolyte fuel cells and a process for manufacture of the electrode. The fuel electrode of the invention is a porous element composed of a high-melting metal, such as ruthenium, osmium, rhodium or iridium, or an alloy containing the metal. The process for manufacture of the fuel electrode comprises coating an electrode material with a solution or dispersion of the high-melting metal and/or its chloride, sintering the same and finally reducing the product.
    Type: Grant
    Filed: July 23, 2002
    Date of Patent: March 8, 2005
    Assignee: Osaka Gas Company Limited
    Inventors: Masamichi Ippommatsu, Minoru Suzuki, Hirokazu Sasaki, Shoji Otoshi, Hisao Ohnishi
  • Publication number: 20040202920
    Abstract: The invention relates to a cermet electrode for use as e.g. the fuel electrode of a solid electrolyte fuel cell and a method of manufacturing the same. This cermet electrode is characterized by comprising grains of a high-melting metal having a melting point of not less than 1,900° C. and/or grains of an alloy containing the high-melting metal and secured in position by zirconia doped to present the form of a cubic lattice. The method of manufacturing this cermet electrode comprises covering a support of doped zirconia with grains of a high-melting metal having a melting point of not less than 1,900° C. and/or grains of an alloy containing the high-melting metal and causing a framework structure to grow from the doped zirconia around the grains by electrochemical vapor deposition to secure the grains in position and to the support.
    Type: Application
    Filed: April 29, 2004
    Publication date: October 14, 2004
    Applicant: Osaka Gas Company Limited
    Inventors: Masamichi Ipponmatsu, Minoru Suzuki, Hirokazu Sasaki, Shoji Otoshi
  • Publication number: 20020192534
    Abstract: The invention relates to a fuel electrode for high-temperature solid electrolyte fuel cells and a process for manufacture of the electrode. The fuel electrode of the invention is a porous element composed of a high-melting metal, such as ruthenium, osmium, rhodium or iridium, or an alloy containing the metal. The process for manufacture of the fuel electrode comprises coating an electrode material with a solution or dispersion of the high-melting metal and/or its chloride, sintering the same and finally reducing the product.
    Type: Application
    Filed: July 23, 2002
    Publication date: December 19, 2002
    Applicant: Osaka Gas Company Limited
    Inventors: Masamichi Ipponmatsu, Minoru Suzuki, Hirokazu Sasaki, Shoji Otoshi, Hisao Ohnishi
  • Patent number: 6432570
    Abstract: The invention relates to a fuel electrode for high-temperature solid electrolyte fuel cells and a process for manufacture of the electrode. The fuel electrode of the invention is a porous element composed of a high-melting metal, such as ruthenium, osmium, rhodium or iridium, or an alloy containing the metal. The process for manufacture of the fuel electrode comprises coating an electrode material with a solution or dispersion of the high-melting metal and/or its chloride, sintering the same and finally reducing the product.
    Type: Grant
    Filed: April 25, 2000
    Date of Patent: August 13, 2002
    Assignee: Osaka Gas Company Limited
    Inventors: Masamichi Ippommatsu, Minoru Suzuki, Hirokazu Sasaki, Shoji Otoshi, Hisao Ohnishi
  • Publication number: 20020041990
    Abstract: The invention relates to a cermet electrode for use as e.g. the fuel electrode of a solid electrolyte fuel cell and a method of manufacturing the same. This cermet electrode is characterized by comprising grains of a high-melting metal having a melting point of not less than 1,900° C. and/or grains of an alloy containing the high-melting metal and secured in position by zirconia doped to present the form of a cubic lattice. The method of manufacturing this cermet electrode comprises covering a support of doped zirconia with grains of a high-melting metal having a melting point of not less than 1,900° C. and/or grains of an alloy containing the high-melting metal and causing a framework structure to grow from the doped zirconia around the grains by electrochemical vapor deposition to secure the grains in position and to the support.
    Type: Application
    Filed: October 29, 2001
    Publication date: April 11, 2002
    Inventors: Masamichi Ipponmatsu, Minoru Suzuki, Hirokazu Sasaki, Shoji Otoshi
  • Patent number: 6054232
    Abstract: The invention relates to a fuel electrode for high-temperature solid electrolyte fuel cells and a process for manufacture of the electrode. The fuel electrode of the invention is a porous element composed of a high-melting metal, such as ruthenium, osmium, rhodium or iridium, or an alloy containing the metal. The process for manufacture of the fuel electrode comprises coating an electrode material with a solution or dispersion of the high-melting metal and/or its chloride, sintering the same and finally reducing the product.
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: April 25, 2000
    Assignee: Osaka Gas Company Limited
    Inventors: Masamichi Ippommatsu, Minoru Suzuki, Hirokazu Sasaki, Shoji Otoshi, Hisao Ohnishi
  • Patent number: 5348776
    Abstract: The invention relates to a method of producing interconnectors for solid oxide electrolyte fuel cells (SOFC). The method of the invention is characterized in that a compact thin film to serve as an interconnector is formed on a substrate by the laser ablation method. By this method, interconnectors made of a compact thin film highly accurate in composition can be produced with high productivity.
    Type: Grant
    Filed: April 13, 1992
    Date of Patent: September 20, 1994
    Assignee: Osaka Gas Company Limited
    Inventors: Masamichi Ippommatsu, Hirokazu Sasaki, Shoji Otoshi, Minoru Suzuki, Atsuko Kajimura
  • Patent number: 5286580
    Abstract: The invention relates to a fuel electrode for high-temperature solid electrolyte fuel cells and a process for manufacture of the electrode. The fuel electrode of the invention is a porous element composed of a high-melting metal, such as ruthenium, osmium, rhodium or iridium, or an alloy containing the metal. The process for manufacture of the fuel electrode comprises coating an electrode material with a solution or dispersion of the high-melting metal and/or its chloride, sintering the same and finally reducing the product.
    Type: Grant
    Filed: February 4, 1991
    Date of Patent: February 15, 1994
    Assignee: Osaka Gas Company Limited
    Inventors: Masamichi Ippommatsu, Minoru Suzuki, Horikazu Sasaki, Shoji Otoshi, Hisao Ohnishi
  • Patent number: 4509336
    Abstract: The air conditioning apparatus according to the invention comprises an absorption type heat pump comprising a system including an absorber, a regenerator, a condenser and an evaporator. A mixture of lithium bromide and zinc chloride is used as an absorbent which is dissolved to form an absorbent solution into a mixed solvent having a ratio by weight of methanol to water, the ratio falling in a range between 0.1 and 0.3. Said solution is circulated through the system.
    Type: Grant
    Filed: December 12, 1983
    Date of Patent: April 9, 1985
    Assignee: Osaka Gas Company Limited
    Inventors: Yasumasa Ouchi, Shoji Otoshi