Patents by Inventor Tetsuji Miura

Tetsuji Miura 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).

  • Patent number: 5049613
    Abstract: A thermoplastic resin composition comprising:(A) from 10 to 50% by weight of a maleimide copolymer of from 30 to 70 mol % of an aromatic vinyl monomer, from 30 to 50 mol % of a maleimide monomer, from 3 to 20 mol % of an unsaturated dicarboxylic anhydride monomer and from 0 to 50 mol % of other copolymerizable monomer;(B) from 40 to 80% by weight of a polyamide; and(C) from 3 to 40% by weight of a polyolefin polymer modified by from 0.1 to 10% by weight of an unsaturated dicarboxylic anhydride monomer and/or an unsaturated carboxylic acid monomer,wherein said maleimide copolymer is in the form of dispersed particles of from 0.01 to 1.0 .mu.m.
    Type: Grant
    Filed: February 16, 1989
    Date of Patent: September 17, 1991
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Sachio Shimizu, Tetsuji Miura, Toshio Noda, Hiroshi Murakami
  • Patent number: 4743646
    Abstract: A thermoplastic resin composition comprising (I) from 40 to 98 parts by weight of a thermoplastic resin comprising (A) from 10 to 90% by weight of an imidemodified copolymer obtained by reacting a composition consisting of a polymer and a primary aromatic amine to a polymer prepared by copolymerizing (a) a monomer mixture comprising an aromatic vinyl monomer, an unsaturated dicarboxylic acid anhydride and a vinyl monomer copolymerizable therewith, to (b) a rubber polymer component, to convert from 80 to 100 mol % of acid anhydride groups in the polymer to imido groups; (B) from 10 to 90% by weight of a graft copolymer prepared by copolymerizing (a) a monomer mixture comprising an aromatic vinyl monomer, a vinyl cyanide monomer and a vinyl monomer copolymerizable therewith, to (b) a rubber polymer component; and (C) from 0 to 80% by weight of a copolymer prepared by polymerizing an aromatic vinyl monomer, a vinyl cyanide monomer and a vinyl monomer copolymerizable therewith; and, (II) from 2 to 60 parts by wei
    Type: Grant
    Filed: March 12, 1986
    Date of Patent: May 10, 1988
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Tetsuji Miura, Koichi Sato, Norio Yagi
  • Patent number: 4608414
    Abstract: A thermoplastic resin composition comprising:(A) from 10 to 90 parts by weight of an imide-modified polymer having an imido group and obtained by reacting ammonia and/or a primary amine to a copolymer prepared by the polymerization of a monomer mixture comprising from 50 to 70% by weight of an aromatic vinyl monomer and from 30 to 50% by weight of an unsaturated dicarboxylic acid anhydride;(B) from 10 to 90 parts by weight of a graft copolymer prepared by copolymerizing from 30 to 75% by weight of a mixture comprising from 40 to 80% by weight of a rubber-like polymer having a weight average particle size of from 0.3 to 0.6 .mu.m and from 20 to 60% by weight of a rubber-like polymer having a weight average particle size of from 0.1 to 0.2 .mu.
    Type: Grant
    Filed: November 22, 1985
    Date of Patent: August 26, 1986
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Tomoyuki Kitsunai, Tetsuji Miura, Norio Yagi