Patents by Inventor Naotoshi OOHASHI

Naotoshi OOHASHI 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 and molded article
    Patent number: 11976189
    Abstract: A thermoplastic resin composition comprising a graft copolymer (A), a vinyl copolymer (B), and a metal component (C), wherein: an amount of the metal component (C) is 60 ppm or more relative to a total mass of the thermoplastic resin composition, the graft copolymer (A) is a graft polymer obtained by polymerizing 80% by mass to 20% by mass of a vinyl monomer mixture (m1) including at least one type of vinyl monomer in the presence of 20% by mass to 80% by mass of a rubbery polymer (a) including a polyorganosiloxane and an alkyl (meth)acrylate polymer, the vinyl copolymer (B) is a vinyl copolymer obtained by polymerizing a vinyl monomer mixture (m2) including an alkyl (meth)acrylate monomer, and the metal component (C) is an alkali metal.
    Type: Grant
    Filed: March 25, 2022
    Date of Patent: May 7, 2024
    Assignees: TECHNO-UMG CO., LTD., MITSUBISHI CHEMICAL CORPORATION
    Inventors: Kentaro Hiraishi, Naotoshi Oohashi, Ichiro Kamata
  • THERMOPLASTIC RESIN COMPOSITION AND MOLDED ARTICLE
    Publication number: 20240043678
    Abstract: A thermoplastic resin composition comprising a graft copolymer (A), a vinyl copolymer (B), and a metal component (C), wherein: an amount of the metal component (C) is 60 ppm or more relative to a total mass of the thermoplastic resin composition, the graft copolymer (A) is a graft polymer obtained by polymerizing 80% by mass to 20% by mass of a vinyl monomer mixture (m1) including at least one type of vinyl monomer in the presence of 20% by mass to 80% by mass of a rubbery polymer (a) including a polyorganosiloxane and an alkyl (meth)acrylate polymer, the vinyl copolymer (B) is a vinyl copolymer obtained by polymerizing a vinyl monomer mixture (m2) including an alkyl (meth)acrylate monomer. and the metal component (C) is an alkali metal.
    Type: Application
    Filed: March 25, 2022
    Publication date: February 8, 2024
    Applicants: Techno-UMG Co., Ltd., Mitsubishi Chemical Corporation
    Inventors: Kentaro HIRAISHI, Naotoshi OOHASHI, Ichiro KAMATA