Patents by Inventor Hiromu Akatsuka

Hiromu Akatsuka 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).

  • Rubber-reinforced thermoplastic resin and rubber-reinforced thermoplastic resin composition
    Patent number: 6849689
    Abstract: Rubber-reinforced thermoplastic resins containing a copolymer resin (A1) obtained by polymerizing a vinyl monomer (b1) in the presence of an acrylic rubber-like polymer (a), or a mixture of copolymer resin (A1) and a (co)polymer (A2) of a vinyl monomer (b2). Acrylic rubber-like polymer (a) contains 50 to 98% by weight of acrylic rubber-like polymer particles (a1) which have a particle size of less than 350 nm and 2 to 50% by weight of acrylic rubber-like polymer particles (a2) which have a particle size of not less than 350 nm. The amount of the acrylic rubber-like polymer (a) is 5 to 80% by weight based on the rubber-reinforced thermoplastic resin.
    Type: Grant
    Filed: March 26, 2002
    Date of Patent: February 1, 2005
    Assignee: Techno Polymer Co., Ltd.
    Inventors: Gou Yamada, Hiromu Akatsuka, Takashi Kurata
  • Rubber-reinforced thermoplastic resin and rubber-reinforced thermoplastic resin composition
    Publication number: 20020188066
    Abstract: The present invention relates to a rubber-reinforced thermoplastic resin comprising a copolymer resin (A1) obtained by polymerizing a vinyl monomer (b1) in the presence of an acrylic rubber-like polymer (a), or a mixture of said copolymer resin (A1) and a (co)polymer (A2) of a vinyl monomer (b2),
    Type: Application
    Filed: March 26, 2002
    Publication date: December 12, 2002
    Inventors: Gou Yamada, Hiromu Akatsuka, Takashi Kurata