Patents by Inventor Susumu Ooka

Susumu Ooka 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).

  • Patent number: 8895140
    Abstract: Provided is a vinylidene fluoride resin film that has good adhesiveness to a base material, achieves good dispersivity even when a pigment is contained in large amounts, and has excellent thermal stability during a forming process. To a resin component composed of a vinylidene fluoride resin and a methacrylic acid ester resin, a predetermined amount of a titanium oxide surface treated with alumina and silica and a predetermined amount of a fatty acid ester of polyethylene glycol and/or its derivative are added to prepare a vinylidene fluoride resin film. Alternatively, at least a front side layer and a back side layer have such a composition, the front side layer has a combination amount of the vinylidene fluoride resin and the methacrylic acid ester resin of 70:30 to 95:5 in terms of mass ratio, and the back side layer has a combination amount of the vinylidene fluoride resin and the methacrylic acid ester resin of 5:95 to 45:55 in terms of mass ratio.
    Type: Grant
    Filed: February 9, 2010
    Date of Patent: November 25, 2014
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Hidetoshi Yoshimura, Fukumu Komoda, Atsushi Igarashi, Susumu Ooka, Koji Nakajima
  • Publication number: 20110293945
    Abstract: Provided is a vinylidene fluoride resin film that has good adhesiveness to a base material, achieves good dispersivity even when a pigment is contained in large amounts, and has excellent thermal stability during a forming process. To a resin component composed of a vinylidene fluoride resin and a methacrylic acid ester resin, a predetermined amount of a titanium oxide surface treated with alumina and silica and a predetermined amount of a fatty acid ester of polyethylene glycol and/or its derivative are added to prepare a vinylidene fluoride resin film. Alternatively, at least a front side layer and a back side layer have such a composition, the front side layer has a combination amount of the vinylidene fluoride resin and the methacrylic acid ester resin of 70:30 to 95:5 in terms of mass ratio, and the back side layer has a combination amount of the vinylidene fluoride resin and the methacrylic acid ester resin of 5:95 to 45:55 in terms of mass ratio.
    Type: Application
    Filed: February 9, 2010
    Publication date: December 1, 2011
    Applicant: DENKI KAGAKU KOGYO KABUSHIKI KAISHA
    Inventors: Hidetoshi Yoshimura, Fukumu Komoda, Atsushi Igarashi, Susumu Ooka, Koji Nakajima