Patents by Inventor Atsuo SOUNAI

Atsuo SOUNAI 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 for Fuel Cell and Membrane-Electrode Assembly and Fuel Cell Including the Same
    Publication number: 20080305379
    Abstract: Disclosed is a polymer electrolyte membrane for a fuel cell that has a high ionic conductivity even at a high temperature without humidification. The polymer electrolyte membrane comprises a film composed of a polyimide copolymer containing phenylbenzimidazole, and an acid impregnated within the polyimide copolymer film. Also disclosed is another polymer electrolyte membrane for a fuel cell that has good chemical resistance and improved physical properties when compared to those of the previous polymer electrolyte membrane.
    Type: Application
    Filed: August 14, 2008
    Publication date: December 11, 2008
    Applicant: CHEIL INDUSTRIES INC.
    Inventors: Bum Jin LEE, Atsuo SOUNAI