Patents by Inventor Kazuo Kimura

Kazuo Kimura 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).

  • Liquid crystal compositions
    Patent number: 3956168
    Abstract: A liquid crystal composition comprising a nematic liquid crystal and a quaternary ammonium compound selected from the group consisting of the quaternary ammonium salts of carboxylic acids and the quaternary ammonium hydroxides.
    Type: Grant
    Filed: September 4, 1973
    Date of Patent: May 11, 1976
    Assignees: Dainippon Ink and Chemicals, Incorporated, Dainippon Ink Institute of Chemical Research, Sharp Corporation
    Inventors: Yoshi Arai, Shoichi Kinoshita, Kazuo Kimura, Tomio Wada, Hisashi Yamamoto, Fumiaki Funada
  • Paperboard impregnated with polyurethane resin
    Patent number: 3953169
    Abstract: A paperboard impregnated with polyurethane resin having specific NCO content and average molecular weight at the rate of 0.05 to 5.0 weight percent relative to the paperboard has excellent mechanical properties such as compressive strength, tensile strength, tearing strength, folding endurance, etc., even in wet state.
    Type: Grant
    Filed: September 5, 1974
    Date of Patent: April 27, 1976
    Assignee: Takeda Chemical Ind., Ltd.
    Inventors: Seiichi Igarashi, Kin-ichi Shirakawa, Kazuo Kimura, Akira Ogino