Patents by Inventor Kohsaku Sakaguchi

Kohsaku Sakaguchi 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).

  • Fluorine-containing block copolymer and artificial lens comprising the same
    Patent number: 5282854
    Abstract: a fluorine-containing block copolymer comprising at least one soft segment which comprises chlorotrifluoroethylene and vinylidene fluoride and at least one hard segment which comprises a fluorine-containing crystalline polymer, which copolymer has good flexibility and transparency and useful as a material for an artificial lens.
    Type: Grant
    Filed: October 13, 1992
    Date of Patent: February 1, 1994
    Assignee: Daikin Industries Ltd.
    Inventors: Toshiharu Yagi, Nobuhiko Tsuda, Tsuyoshi Noguchi, Kohsaku Sakaguchi, Yoshito Tanaka, Masayoshi Tatemoto
  • Vibration-proof damping polymer material
    Patent number: 5169902
    Abstract: A vibration-proof damping polymer material characterized in that the material is prepared from a polymer substance obtained by dissolving an amorphous fluorine-containing polymer in an acrylic monomer and polymerizing the monomer with or without permitting the resulting polymer to form an interpenetrating polymer network, and a vibration-proof damping polymer material characterized in that the material is prepared from a blend of (a) and (b), (a) being an amorphous fluorine-containing polymer or crystalline polymer containing vinylidene fluoride, and (b) being an acrylic polymer.
    Type: Grant
    Filed: March 30, 1990
    Date of Patent: December 8, 1992
    Assignee: Daikin Industries Ltd.
    Inventors: Toshiharu Yagi, Yoshito Tanaka, Tsuyoshi Noguchi, Kohsaku Sakaguchi, Nobuhiko Tsuda
  • Coating composition
    Patent number: 5081175
    Abstract: The present invention provides a coating composition which comprises (a) a polymer containing vinylidene fluoride, (b) an acrylic polymer and (c) acetylacetone, as essential components, and an article which is coated or impregnated with the coating composition.
    Type: Grant
    Filed: December 28, 1990
    Date of Patent: January 14, 1992
    Assignee: Daikin Industries, Ltd.
    Inventors: Toshiharu Yagi, Tsuyoshi Noguchi, Yoshito Tanaka, Kohsaku Sakaguchi, Nobuhiko Tsuda