Patents by Inventor Ruriko Nakagawa

Ruriko Nakagawa 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).

  • Kaolin clay for thermoplastic resin composition and thermoplastic resin composition
    Patent number: 10995200
    Abstract: Provided are a kaolin clay for a thermoplastic resin composition that can provide high impact strength and glossiness and a thermoplastic resin composition containing the same. A kaolin clay for a thermoplastic resin composition is subjected to a surface treatment with 0.2 to 10 parts by mass of at least one selected from the group consisting of methyl silicate, ethyl silicate, propyl silicate, and butyl silicate relative to 100 parts by mass of the kaolin clay.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: May 4, 2021
    Assignee: SHIRAISHI KOGYO KAISHA, LTD.
    Inventors: Kenichiro Eguchi, Yutaka Minamino, Ruriko Nakagawa, Kosuke Kawai, Masahiro Matsui
  • KAOLIN CLAY FOR THERMOPLASTIC RESIN COMPOSITION AND THERMOPLASTIC RESIN COMPOSITION
    Publication number: 20190177512
    Abstract: Provided are a kaolin clay for a thermoplastic resin composition that can provide high impact strength and glossiness and a thermoplastic resin composition containing the same. A kaolin clay for a thermoplastic resin composition is subjected to a surface treatment with 0.2 to 10 parts by mass of at least one selected from the group consisting of methyl silicate, ethyl silicate, propyl silicate, and butyl silicate relative to 100 parts by mass of the kaolin clay.
    Type: Application
    Filed: May 31, 2017
    Publication date: June 13, 2019
    Applicant: SHIRAISHI KOGYO KAISHA, LTD.
    Inventors: Kenichiro Eguchi, Yutaka Minamino, Ruriko Nakagawa, Kosuke Kawai, Masahiro Matsui