Patents by Inventor Nobuhito Toshima

Nobuhito Toshima 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 electrochemical cell and process of preparing same
    Patent number: 5607785
    Abstract: Disclosed herein are several aspects processes of preparing a polymer electrolyte electrochemical cell in which supply of a reaction gas and discharge of an obtained gas can be smoothly conducted. This can be achieved by forming through apertures in a cathode or by forming a gradient of ion exchange resin concentration of a catalyst particle cluster size.
    Type: Grant
    Filed: October 11, 1995
    Date of Patent: March 4, 1997
    Assignees: Tanaka Kikinzoku Kogyo K.K., M. Watanabe, Stonehart Associates Inc.
    Inventors: Takeshi Tozawa, Nobuhito Toshima