Patents by Inventor Norihito Takeuchi

Norihito Takeuchi 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).

  • Light guiding plate
    Publication number: 20020057561
    Abstract: A light guiding plate guides light from a light source to illuminate a display. A reflector reflects light from the light source. A first surface and a second surface selectively transmits or reflects light. A first region is formed on the first surface at a location that is relatively near the light source. The first region includes a first inclined face and a second inclined face. The first inclined face reflects light from the light source to guide light to the reflector. The second inclined face reflects light from the light source to guide light to the second surface. A second region is formed on the first surface at a location that is relatively far from the light source. The second region includes a third inclined face and a fourth inclined face. The third inclined face reflects light from the light source to guide light to the second surface. The fourth inclined face reflects light reflected by the reflector to guide to the second surface.
    Type: Application
    Filed: September 17, 2001
    Publication date: May 16, 2002
    Inventors: Eiki Niida, Fumikazu Isogai, Yasuya Mita, Norihito Takeuchi, Tomoyoshi Motohiro, Tatsuyo Fukano, Yasuhiko Takeda