Patents by Inventor Nobumitsu Fukuyama

Nobumitsu Fukuyama 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).

  • Graft copolymer and thermoplastic resin composition containing the same
    Patent number: 6777492
    Abstract: The graft copolymer (G) of the present invention is a graft copolymer which is prepared by emulsion graft polymerization of a rubber polymer comprising 0-50% by weight of a butadiene unit and 50-100% by weight of a (meth)acrylate unit and at least one monomer selected from aromatic alkenyl compound, methacrylate, acrylate and vinyl cyanide compound, said graft copolymer containing 0.5-2.0% by weight of an emulsifier residue. The thermoplastic resin composition containing the graft copolymer of the present invention causes less gas evolution during the molding, provides a molded article with good gloss of molding, and has excellent weather resistance, impact resistance and fluidity.
    Type: Grant
    Filed: July 19, 2002
    Date of Patent: August 17, 2004
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Yoshihiro Nakai, Hideyuki Fujii, Hisaya Yokohama, Takahiro Ikebe, Nobumitsu Fukuyama, Hideyuki Shigemitsu