Patents by Inventor Hiroyoshi Houda

Hiroyoshi Houda 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).

  • Bipolar zero-gap type electrolytic cell
    Patent number: 7323090
    Abstract: A bipolar zero-gap electrolytic cell comprising an anode comprising an anode substrate constituted of a titanium expanded metal or titanium metal net of 25 to 70% opening ratio, which anode after coating the substrate with a catalyst has a surface of 5 to 50 ?m unevenness difference maximum and has a thickness of 0.7 to 2.0 mm. In this electrolytic cell, the possibility of breakage of ion exchange membrane is low, and the anolyte and catholyte have a concentration distribution falling within given range. With this electrolytic cell, stable electrolysis can be performed for a prolonged period of time with less variation of cell internal pressure.
    Type: Grant
    Filed: November 26, 2003
    Date of Patent: January 29, 2008
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Hiroyoshi Houda, Yasuhide Noaki
  • Electrode for use in hydrogen generation
    Patent number: 7229536
    Abstract: An electrode for use in hydrogen generation comprising a conductive base and a coating layer formed thereon of a composition obtainable by thermally decomposing, in the presence of an organic acid, a mixture comprising at least one type of platinum compound.
    Type: Grant
    Filed: June 21, 2006
    Date of Patent: June 12, 2007
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Hiroyoshi Houda, Yasuhide Noaki, Kentaro Sako
  • ELECTRODE FOR USE IN HYDROGEN GENERATION
    Publication number: 20060231387
    Abstract: An electrode for use in hydrogen generation comprising a conductive base and a coating layer formed thereon of a composition obtainable by thermally decomposing, in the presence of an organic acid, a mixture comprising at least one type of platinum compound.
    Type: Application
    Filed: June 21, 2006
    Publication date: October 19, 2006
    Inventors: Hiroyoshi Houda, Yasuhide Noaki, Kentaro Sako
  • Electrode for generation of hydrogen
    Patent number: 7122219
    Abstract: An electrode for use in hydrogen generation comprising a conductive base and a coating layer formed thereon of a composition obtainable by thermally decomposing, in the presence of an organic acid, a mixture comprising at least one type of platinum compound.
    Type: Grant
    Filed: March 20, 2003
    Date of Patent: October 17, 2006
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Hiroyoshi Houda, Yasuhide Noaki, Kentaro Sako
  • Bipolar zero-gap type electrolytic cell
    Publication number: 20060042935
    Abstract: A bipolar zero-gap electrolytic cell comprising an anode comprising an anode substrate constituted of a titanium expanded metal or titanium metal net of 25 to 70% opening ratio, which anode after coating the substrate with a catalyst has a surface of 5 to 50 ?m unevenness difference maximum and has a thickness of 0.7 to 2.0 mm. In this electrolytic cell, the possibility of breakage of ion exchange membrane is low, and the anolyte and catholyte have a concentration distribution falling within given range. With this electrolytic cell, stable electrolysis can be performed for a prolonged period of time with less variation of cell internal pressure.
    Type: Application
    Filed: November 26, 2003
    Publication date: March 2, 2006
    Inventors: Hiroyoshi Houda, Yasuhide Noaki
  • Electrode for generation of hydrogen
    Publication number: 20040151896
    Abstract: An electrode for use in hydrogen generation comprising a conductive base and a coating layer formed thereon of a composition obtainable by thermally decomposing, in the presence of an organic acid, a mixture comprising at least one type of platinum compound.
    Type: Application
    Filed: November 20, 2003
    Publication date: August 5, 2004
    Inventors: Hiroyoshi Houda, Yasuhide Noaki, Kentaro Sako