Patents by Inventor Takuo Shigetomi

Takuo Shigetomi 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-resistant polyamide resin composition
    Patent number: 4788244
    Abstract: A flame-resistant composition comprising a blend of (I) polyamide, (II) a brominated polystyrene and (III) a copolymer of an aromatic vinyl compound and an .alpha., .beta.-unsaturated dicarboxylic acid anhydride, wherein the .alpha., .beta.-unsaturated dicarboxylic acid anhydride component of the copolymer is present in an amount of 0.06-0.75 wt % based on the total weight of (I), (II) and (III).
    Type: Grant
    Filed: January 27, 1988
    Date of Patent: November 29, 1988
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Junnichi Nakahashi, Takuo Shigetomi, Shinichi Kai