Patents by Inventor Yuichiro Kushida

Yuichiro Kushida 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).

  • Polyvinyl chloride thermoplastic elastomer composition
    Patent number: 5416146
    Abstract: A thermoplastic elastomer composition comprising 100 parts by weight of a vinyl chloride resin, from 20 to 300 parts by weight of a nitrile rubber, from 25 to 200 parts by weight of a plasticizer, from 10 to 200 parts by weight of a filler and a curing agent for the rubber, and being meltable by a roll set at a temperature of 190.degree. C.
    Type: Grant
    Filed: February 25, 1994
    Date of Patent: May 16, 1995
    Assignee: Denki Kagagu Kogyo Kabushiki Kaisha
    Inventors: Yuichiro Kushida, Shoichi Tamegai, Akio Hirohashi
  • Polyvinyl chloride thermoplastic elastomer composition
    Patent number: 5344864
    Abstract: A thermoplastic elastomer composition comprising 100 parts by weight of a vinyl chloride resin, from 20 to 300 parts by weight of a nitrile rubber, from 25 to 200 parts by weight of a plasticizer, from 10 to 200 parts by weight of a filler and a curing agent for the rubber, and being meltable by a roll set at a temperature of 190.degree. C.
    Type: Grant
    Filed: December 12, 1990
    Date of Patent: September 6, 1994
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Yuichiro Kushida, Shoichi Tamegai, Akio Hirohashi
  • Rubber composition
    Patent number: 4792581
    Abstract: A rubber composition comprising a crosslinked blend containing a mixture of from 50 to 95% by weight of an acrylic elastomer and from 5 to 50% by weight of polyethylene is disclosed. The composition has improved resistance to fuel oil, particularly alcohol-added gasoline, as well as cold temperature resistance and heat resistance, and is, therefore, useful as a fuel oil resistant material.
    Type: Grant
    Filed: December 29, 1986
    Date of Patent: December 20, 1988
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Takeo Kondo, Yuichiro Kushida, Yasushi Abe
  • Flame-retardant resin composition
    Patent number: 4657974
    Abstract: A flame-retardant resin composition comprising:(a) a copolymer obtained by copolymerizing from 65 to 80% by weight of .alpha.-methylstyrene, from 15 to 30% by weight of acrylonitrile and from 0 to 30% by weight of a monomer copolymerizable therewith and having a number average molecular weight of from 15,000 to 80,000;(b) a graft copolymer obtained by copolymerizing from 20 to 70 parts by weight of a monomer mixture of from 50 to 80% by weight of styrene, from 15 to 35% by weight of acrylonitrile and from 0 to 30% by weight of other vinyl compound copolymerizable therewith in the presence of from 30 to 80 parts by weight of a rubber having a glass transition temperature of not higher than 0.degree. C.
    Type: Grant
    Filed: October 1, 1985
    Date of Patent: April 14, 1987
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Yuichiro Kushida, Shigenobu Tago, Tatsuhiro Aoyagi