Patents by Inventor Atsushi Mukohyama

Atsushi Mukohyama 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).

  • Polymer electrolyte membrane fuel cell with bipolar plate having molded polymer projections
    Patent number: 5798188
    Abstract: A polymer electrolyte membrane fuel cell comprised of polymer electrolyte membranes, gas diffusion electrodes that sandwich the membranes, and bipolar plates operating as gas separation plates and current collectors with fuel/oxidizing agent supply and discharge passages provided by projections on both of its surfaces. A bipolar plate is employed which comprises projections on the bipolar plate of a melt-processible polymer having good fluidity and a coating on the surfaces of the bipolar plate comprising metal, metal nitride or metal carbide.
    Type: Grant
    Filed: June 25, 1997
    Date of Patent: August 25, 1998
    Assignee: E. I. duPont de Nemours and Company
    Inventors: Atsushi Mukohyama, Toshihiko Takeda
  • Flame resistant polyester resin composition
    Patent number: 5700857
    Abstract: A polyester resin composition made of a polyester resin containing a polyalkylene oxide soft segment component, a plasticizer, a crystallization promoter, and a brominated flame retardant is developed, said composition having good flame resistance and mechanical properties.
    Type: Grant
    Filed: June 25, 1996
    Date of Patent: December 23, 1997
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Atsushi Mukohyama