Patents by Inventor Masahoro Watanabe

Masahoro Watanabe 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).

  • Structure of electrochemical cell for wetting diaphragm of solid polymer electrolyte
    Patent number: 5262250
    Abstract: Disclosed is an electrochemical cell having a structure of wetting diaphragm made of a solid polymer electrolyte in which at least a narrow path for supplying water to the solid polymer electrolyte is formed. According to the electrochemical cell of this invention, the elevation of performance of the above cell is contemplated by increasing ionic conductivity and excluding burdensome control of water vapor in a reaction gas by means of adding water in the solid polymer electrolyte through the narrow path.
    Type: Grant
    Filed: February 13, 1992
    Date of Patent: November 16, 1993
    Assignees: Tanaka Kikinzoku Kogyo K.K., Masahiro Watanabe
    Inventor: Masahoro Watanabe