Patents by Inventor Takeshi Ogihara

Takeshi Ogihara 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).

  • Planar light-emitting device and liquid crystal display apparatus using the same
    Patent number: 8390760
    Abstract: A planar light-emitting device enabling reduction in the deflection of a sheet-shaped light-diffusing element includes a reflector having an upper surface serving as a light-reflecting surface, a partition provided on the reflector to extend upward to form a plurality of enclosed spaces over the upper surface of the reflector, light sources disposed in the enclosed spaces, respectively, and at least one sheet-shaped light-diffusing element supported on the upper edges of the partition to transmit and diffuse light from the light sources upward. The side surfaces of the partition that define the enclosed spaces are light-reflecting surfaces.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: March 5, 2013
    Assignees: Citizen Electronics Co., Ltd., Citizen Holdings Co., Ltd.
    Inventors: Takeshi Ogihara, Daisaku Okuwaki, Makoto Yasuhara, Taku Kumasaka
  • PLANAR LIGHT-EMITTING DEVICE AND LIQUID CRYSTAL DISPLAY APPARATUS USING THE SAME
    Publication number: 20100141867
    Abstract: A planar light-emitting device enabling reduction in the deflection of a sheet-shaped light-diffusing element includes a reflector having an upper surface serving as a light-reflecting surface, a partition provided on the reflector to extend upward to form a plurality of enclosed spaces over the upper surface of the reflector, light sources disposed in the enclosed spaces, respectively, and at least one sheet-shaped light-diffusing element supported on the upper edges of the partition to transmit and diffuse light from the light sources upward. The side surfaces of the partition that define the enclosed spaces are light-reflecting surfaces.
    Type: Application
    Filed: December 3, 2009
    Publication date: June 10, 2010
    Inventors: Takeshi OGIHARA, Daisaku Okuwaki, Makoto Yasuhara, Taku Kumasaka