Patents by Inventor Toshiro Koshida

Toshiro Koshida 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).

  • Thermoplastic resin composition
    Patent number: 4008295
    Abstract: A vinyl chloride polymer composition consisting essentially of 60 to 40% by weight of a vinyl chloride-ethylene copolymer having an average degree of polymerization of 300 to 500 and an ethylene content of 1 to 10% by weight and 40 to 60% by weight of at least one interpolymer selected from the group consisting of acrylonitrile-butadiene-styrene terpolymers and acrylonitrile-methyl methacrylate-butadiene-styrene quadripolymers. This composition has a heat deformation temperature of 75.degree. to 90.degree. C and is capable of easily giving by injection molding an article having a good surface appearance, a good gloss due to its excellent moldability and excellent impact resistance.
    Type: Grant
    Filed: July 18, 1975
    Date of Patent: February 15, 1977
    Assignee: Sumitomo Bakelite Company, Limited
    Inventors: Toshiro Koshida, Yasuo Nakagawa
  • Thermoplastic resin composition
    Patent number: 3959407
    Abstract: A vinyl chloride polymer composition consisting essentially of 60 to 40 % by weight of a vinyl chloride-propylene copolymer and 40 to 60 % by weight of at least one interpolymer selected from the group consisting of acrylonitrile-butadiene-styrene terpolymers and acrylonitrile-methyl methacrylate-butadiene-styrene quadripolymers. This composition has a heat deformation temperature of 75.degree. to 90.degree.C and is capable of easily giving by injection molding an article having a good surface appearance, a good gloss due to its excellent moldability and excellent impact resistance.
    Type: Grant
    Filed: March 13, 1974
    Date of Patent: May 25, 1976
    Assignee: Sumitomo Bakelite Company, Limited
    Inventors: Toshiro Koshida, Yasuo Nakagawa