Patents by Inventor Kenji Kadoma

Kenji Kadoma 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 electrode catalyst for fuel cell, electrode/membrane assembly, and fuel cell and fuel cell system provided with the electrode/membrane assembly
    Patent number: 8951696
    Abstract: A fuel electrode catalyst for fuel cell excellent in CO poisoning resistance, an electrode/membrane assembly using the fuel electrode catalyst for fuel cell, and a fuel cell and a fuel cell system including the electrode/membrane assembly are provided. The fuel electrode catalyst for fuel cell comprises a platinum-ruthenium first alloy catalyst and a second alloy catalyst obtained by partially substituting ruthenium of the platinum-ruthenium first alloy catalyst by a metal lower dissolving potential than ruthenium. The electrode/membrane assembly 7 comprises three layers of a second alloy catalyst layer 3, a first alloy catalyst layer 4, and a ruthenium catalyst layer 5 arranged in this order from a polymer electrolytic membrane 1 side toward a gas diffusion layer 13 side.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: February 10, 2015
    Assignee: JX Nippon Oil & Energy Corporation
    Inventors: Kenji Kadoma, Kouji Matsuoka
  • FUEL ELECTRODE CATALYST FOR FUEL CELL, ELECTRODE/MEMBRANE ASSEMBLY, AND FUEL CELL AND FUEL CELL SYSTEM PROVIDED WITH THE ELECTRODE/MEMBRANE ASSEMBLY
    Publication number: 20140178794
    Abstract: A fuel electrode catalyst for fuel cell excellent in CO poisoning resistance, an electrode/membrane assembly using the fuel electrode catalyst for fuel cell, and a fuel cell and a fuel cell system including the electrode/membrane assembly are provided. The fuel electrode catalyst for fuel cell comprises a platinum-ruthenium first alloy catalyst and a second alloy catalyst obtained by partially substituting ruthenium of the platinum-ruthenium first alloy catalyst by a metal lower dissolving potential than ruthenium. The electrode/membrane assembly 7 comprises three layers of a second alloy catalyst layer 3, a first alloy catalyst layer 4, and a ruthenium catalyst layer 5 arranged in this order from a polymer electrolytic membrane 1 side toward a gas diffusion layer 13 side.
    Type: Application
    Filed: December 20, 2013
    Publication date: June 26, 2014
    Applicant: Sanyo Electric Co., Ltd.
    Inventors: Kenji Kadoma, Kouji Matsuoka
  • Fuel electrode catalyst for fuel cell, electrode/membrane assembly, and fuel cell and fuel cell system provided with the electrode/membrane assembly
    Publication number: 20090246600
    Abstract: A fuel electrode catalyst for fuel cell excellent in CO poisoning resistance, an electrode/membrane assembly using the fuel electrode catalyst for fuel cell, and a fuel cell and a fuel cell system including the electrode/membrane assembly are provided. The fuel electrode catalyst for fuel cell comprises a platinum-ruthenium first alloy catalyst and a second alloy catalyst obtained by partially substituting ruthenium of the platinum-ruthenium first alloy catalyst by a metal lower dissolving potential than ruthenium. The electrode/membrane assembly 7 comprises three layers of a second alloy catalyst layer 3, a first alloy catalyst layer 4, and a ruthenium catalyst layer 5 arranged in this order from a polymer electrolytic membrane 1 side toward a gas diffusion layer 13 side.
    Type: Application
    Filed: March 28, 2008
    Publication date: October 1, 2009
    Inventors: Kenji Kadoma, Kouji Matsuoka