Patents by Inventor Futoshi Kumiya

Futoshi Kumiya 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).

  • Fluorine-containing elastomer composition
    Patent number: 5565512
    Abstract: A fluorine-containing elastomer composition comprising a terpolymer of tetrafluoroethylene, perfluoro(lower alkyl vinyl ether) and cyano group-containing (perfluorovinylether), and a less expensive of the ammonium salt of organic or inorganic acid as a curing agent produce a vulcanization product having good heat resistance and solvent resistance, and when no carbon black, etc. are contained in the composition for curing, transparent vulcanization product having satisfactory physical properties are obtainable.
    Type: Grant
    Filed: March 22, 1996
    Date of Patent: October 15, 1996
    Assignee: Nippon Mektron, Limited
    Inventors: Satoru Saito, Futoshi Kumiya, Haruyoshi Tatsu