Patents by Inventor Kosaku Fujinaga

Kosaku Fujinaga 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).

  • Electrically conductive member for solid oxide fuel-stack
    Patent number: 7811717
    Abstract: Disclosed is an electrically conductive member for electrically connecting a plurality of solid oxide fuel cells in series and/or parallel to assemble a fuel-cell stack. The electrically conductive member according to the present invention comprises a metal sheet having a three-dimensional porous structure of a continuous skeleton. The electrically conductive member according to the present invention is three-dimensionally strong and is highly elastic and resilient. Therefore, the thickness of the electrically conductive member can be easily re-regulated in the regulation of spacing between the fuel cells. Further, even after baking or power generation, the electrically conductive member is not sintered, and separation easily takes place in the folded interface, and, thus, excellent maintainability can be realized.
    Type: Grant
    Filed: October 27, 2004
    Date of Patent: October 12, 2010
    Assignee: Toto Ltd.
    Inventors: Kosaku Fujinaga, Takeshi Saito, Toshiya Abe, Motoyasu Miyao
  • Electrically Conductive Member for Solid Oxide Fuel-Stack
    Publication number: 20080254334
    Abstract: Disclosed is an electrically conductive member for electrically connecting a plurality of solid oxide fuel cells in series and/or parallel to assemble a fuel-cell stack. The electrically conductive member according to the present invention comprises a metal sheet having a three-dimensional porous structure of a continuous skeleton. The electrically conductive member according to the present invention is three-dimensionally strong and is highly elastic and resilient. Therefore, the thickness of the electrically conductive member can be easily re-regulated in the regulation of spacing between the fuel cells. Further, even after baking or power generation, the electrically conductive member is not sintered, and separation easily takes place in the folded interface, and, thus, excellent maintainability can be realized.
    Type: Application
    Filed: October 27, 2004
    Publication date: October 16, 2008
    Applicant: Toto Ltd.
    Inventors: Kosaku Fujinaga, Takeshi Saito, Toshiya Abe, Motoyasu Miyao
  • Solid oxide fuel cell stack
    Publication number: 20080241625
    Abstract: A solid oxide fuel cell stack includes a plurality of fuel cells, each having a cylindrical shape, a conductive member via which the fuel cells are electrically coupled, and a holding member surrounding the fuel cells and the conductive member. The holding member includes a pressing portion which presses the fuel cells and the conductive member in an electrically serial direction, and a fixing portion which fixes the pressing portion such that the fuel cells and the conductive member are constantly pressed.
    Type: Application
    Filed: March 28, 2008
    Publication date: October 2, 2008
    Applicant: Toto Ltd.
    Inventor: Kosaku Fujinaga