Patents by Inventor Katsuhiko Ishi

Katsuhiko Ishi 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: 8134667
    Abstract: A liquid crystal display device includes a liquid crystal display panel having a first substrate, a second substrate disposed on an observer side of the first substrate, and a liquid crystal layer sandwiched between the first substrate and the second substrate, and a transparent cover affixed by a first bonding member to a surface of the liquid crystal display panel on the observer side. The transparent cover has an optical member affixed by a second bonding member to a surface of the transparent cover facing the second substrate, and when viewed in plan, an edge of the transparent cover and an edge of the optical member protrude outside the second substrate.
    Type: Grant
    Filed: September 12, 2011
    Date of Patent: March 13, 2012
    Assignees: HItachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Risa Takahashi, Katsuhiko Ishi
  • Liquid Crystal Display Device
    Publication number: 20120050655
    Abstract: A liquid crystal display device includes a liquid crystal display panel having a first substrate, a second substrate disposed on an observer side of the first substrate, and a liquid crystal layer sandwiched between the first substrate and the second substrate, and a transparent cover affixed by a first bonding member to a surface of the liquid crystal display panel on the observer side. The transparent cover has an optical member affixed by a second bonding member to a surface of the transparent cover facing the second substrate, and when viewed in plan, an edge of the transparent cover and an edge of the optical member protrude outside the second substrate.
    Type: Application
    Filed: September 12, 2011
    Publication date: March 1, 2012
    Inventors: Risa Takahashi, Katsuhiko Ishi
  • Liquid crystal display device
    Patent number: 8045108
    Abstract: To provide a liquid crystal display device in which it is possible, with a simple configuration, to avoid a bright spot defect caused by a polishing flaw, called a dimple, formed in a surface of an observer side substrate of a liquid crystal display panel.
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: October 25, 2011
    Assignee: Hitachi Displays, Ltd.
    Inventors: Risa Takahashi, Katsuhiko Ishi
  • LIQUID CRYSTAL DISPLAY DEVICE
    Publication number: 20090185122
    Abstract: To provide a liquid crystal display device in which it is possible, with a simple configuration, to avoid a bright spot defect caused by a polishing flaw, called a dimple, formed in a surface of an observer side substrate of a liquid crystal display panel.
    Type: Application
    Filed: January 21, 2009
    Publication date: July 23, 2009
    Inventors: Risa TAKAHASHI, Katsuhiko Ishi