Patents by Inventor Jitsuji Otsuki

Jitsuji Otsuki 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).

  • Fuel cell and sealing parts therefore
    Patent number: 5789094
    Abstract: A bipolar plate is designed to provide a gas seal 16 around an electrode and gas seals 17a around fuel gas manifolds on the same plane and to separate the gas seal 16 and gas seals 17a around oxidant gas manifolds 4, 6 with hollowed parts on an anode electrode 25 side, and to provide the gas seal 16 and the gas seals 17b on a same plane and to separate the gas seal 16 and the gas seals 17a with hollowed parts on a cathode electrode 20 side. Also disclosed are sealing parts for the fuel side and the oxidant side of the fuel cell.
    Type: Grant
    Filed: December 9, 1996
    Date of Patent: August 4, 1998
    Assignees: Kansai Electric Power Co., Inc., Mitsubishi Denki Kabushiki Kaisha
    Inventors: Akira Kusunoki, Jitsuji Otsuki, Yasuhira Kikuoka, Tatsunori Okada, Mitsuie Matsumura, Toshio Shinoki, Masahiro Mukai, Tetsuya Yagi
  • Fuel cell and its bipolar plate
    Patent number: 5616431
    Abstract: A bipolar plate is designed to provide a gas seal 16 around an electrode and gas seals 17a around fuel gas manifolds on the same plane and to separate the gas seal 16 and gas seals 17a around oxidant gas manifolds 4, 6 with hollowed parts on an anode electrode 25 side, and to provide the gas seal 16 and the gas seals 17b on a same plane and to separate the gas seal 16 and the gas seals 17a with hollowed parts on a cathode electrode 20 side.
    Type: Grant
    Filed: January 25, 1995
    Date of Patent: April 1, 1997
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Akira Kusunoki, Jitsuji Otsuki, Yasuhira Kikuoka, Tatsunori Okada, Mitsuie Matsumura, Toshio Shinoki, Masahiro Mukai, Tetsuya Yagi
  • Internal reforming type molten carbonate fuel cell
    Patent number: 5100743
    Abstract: A internal reforming type molten carbonate fuel cell is provided in which the process or flow direction of the reforming reaction of a raw fuel gas in the reforming reaction section is countercurrent to the flow direction of the oxidant gas in the cell reaction section. Therefore, a temperature difference in the fuel cell can be suppressed.
    Type: Grant
    Filed: January 10, 1991
    Date of Patent: March 31, 1992
    Assignees: Kansai Electric Power Co., Inc., Mitsubishi Denki Kabushiki Kaisha
    Inventors: Sanyu Narita, Jitsuji Otsuki, Hiroshi Tahara, Masayuki Miyazaki, Tatsunori Okada, Toshihide Tanaka, Enju Nishiyama