Patents by Inventor Kizo Hattori

Kizo Hattori 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 display device
    Patent number: 6407783
    Abstract: A liquid crystal display device has a light shielding layer 21 at a portion excluding a display pattern on a transparent substrate 12 wherein material for the light shielding layer has an electrical insulation property of not less than 1012 &OHgr;/□ in terms of insulation resistance and an optical density (OD value) of not less than 2.0 per a film thickness of 1 &mgr;m.
    Type: Grant
    Filed: April 6, 1999
    Date of Patent: June 18, 2002
    Assignees: Optrex Corporation, Hiroshima Opt Corporation, Nippon Steel Chemical Co., Ltd.
    Inventors: Masao Ohgawara, Shinsuke Iguchi, Masanori Kohno, Takero Teramoto, Naoki Yokoyama, Kizo Hattori