Patents by Inventor Kayo OOHIRA

Kayo OOHIRA 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).

  • Pressure-sensitive adhesive optical film and image display
    Patent number: 8663798
    Abstract: A pressure-sensitive adhesive optical film of the present invention comprises: an optical film comprising a transparent base film and an optical compensation liquid crystal layer provided on one side of the transparent base film; a pressure-sensitive adhesive layer provided on the optical compensation liquid crystal layer; and an undercoat layer that is interposed between the optical compensation liquid crystal layer and the pressure-sensitive adhesive layer and contains a polymer and an antioxidant. The pressure-sensitive adhesive optical film can suppress window frame unevenness when a backlight is turned on.
    Type: Grant
    Filed: December 18, 2007
    Date of Patent: March 4, 2014
    Assignee: Nitto Denko Corporation
    Inventors: Kayo Oohira, Yuusuke Toyama, Masayuki Satake, Minoru Miyatake
  • PRESSURE-SENSITIVE ADHESIVE OPTICAL FILM AND IMAGE DISPLAY
    Publication number: 20080278672
    Abstract: A pressure-sensitive adhesive optical film of the present invention comprises: an optical film comprising a transparent base film and a discotic liquid crystal layer provided on one side of the transparent base film; an undercoat layer; and a pressure-sensitive adhesive layer provided on the discotic liquid crystal layer with the undercoat layer interposed therebetween, the undercoat layer comprises a polymer and an antioxidant; and the pressure-sensitive adhesive layer comprises a (meth)acrylic polymer (A) comprising 80 to 99.5% by weight of an alkyl (meth)acrylate monomer unit and 0.05 to 3% by weight of a hydroxyl group-containing monomer unit and having a weight average molecular weight of 1,000,000 to 2,500,000; a (meth)acrylic oligomer (B) comprising 80 to 99.9% by weight of an alkyl (meth)acrylate monomer unit and 0.
    Type: Application
    Filed: May 7, 2008
    Publication date: November 13, 2008
    Applicant: NITTO DENKO CORPORATION
    Inventors: Kohei YANO, Akiko SUGINO, Tsuyoshi CHIBA, Masayuki SATAKE, Kayo OOHIRA
  • PRESSURE-SENSITIVE ADHESIVE OPTICAL FILM AND IMAGE DISPLAY
    Publication number: 20080143894
    Abstract: A pressure-sensitive adhesive optical film of the present invention comprises: an optical film comprising a transparent base film and an optical compensation liquid crystal layer provided on one side of the transparent base film; a pressure-sensitive adhesive layer provided on the optical compensation liquid crystal layer; and an undercoat layer that is interposed between the optical compensation liquid crystal layer and the pressure-sensitive adhesive layer and contains a polymer and an antioxidant. The pressure-sensitive adhesive optical film can suppress window frame unevenness when a backlight is turned on.
    Type: Application
    Filed: December 18, 2007
    Publication date: June 19, 2008
    Applicant: NITTO DENKO CORPORATION
    Inventors: Kayo OOHIRA, Yuusuke TOYAMA, Masayuki SATAKE, Minoru MIYATAKE