Patents by Inventor Yuhsaku Ajichi

Yuhsaku Ajichi 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: 7384178
    Abstract: An illumination device for a flat panel display may include a light-guiding member for guiding light from a light-emitting lamp, wherein the light-emitting lamp has a light-emitting device incorporated in a lamp body, wherein the lamp body has a reflection surface that reflects light from the light-emitting device and an emitting surface that is opposite to the reflection surface and irradiates the reflected light from the reflection surface toward the light-guiding member. In certain example embodiments, the emitting surface is formed into a shape along the irradiated surface of the light-guiding member and the reflection surface is formed to be curved such that the reflected light is made approximately parallel seen from one direction upon reflecting the light from the light-emitting device.
    Type: Grant
    Filed: June 25, 2004
    Date of Patent: June 10, 2008
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yukihiro Sumida, Takeshi Masuda, Yuhsaku Ajichi
  • Publication number: 20050030960
    Abstract: A subject of the present invention is to provide an illumination device for a flat panel display and a light-emitting lamp that enhances an efficiency of use of light by controlling the emitting direction of the emitted light and that can downsize the entire device if it is used as an illumination device of a flat panel display.
    Type: Application
    Filed: June 25, 2004
    Publication date: February 10, 2005
    Inventors: Yukihiro Sumida, Takeshi Masuda, Yuhsaku Ajichi