Patents by Inventor Takao Koshiyama

Takao Koshiyama 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).

  • Flame retardant composition
    Patent number: 5025042
    Abstract: A composition comprising:(i) a thermoplastic resin; and(ii) magnesium hydroxide, the surface of which has been treated with an organic aminosilane.
    Type: Grant
    Filed: July 21, 1989
    Date of Patent: June 18, 1991
    Assignee: Nippon Unicar Company Limited
    Inventors: Mamoru Yoshida, Hachiro Suya, Shoji Hayashi, Takao Koshiyama, Satoshi Hashimoto, Katsuhiro Horita