Patents by Inventor Toshiro Horiuchi

Toshiro Horiuchi 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).

  • LINEAR LIGHT SOURCE DEVICE, PLANAR LIGHT EMITTING DEVICE AND LIQUID CRYSTAL DISPLAY DEVICE
    Publication number: 20090310062
    Abstract: To provide a linear light source device (1) arranged on a lateral surface of a light guide plate, comprising: a plurality of linear light source assemblies (3) each including an elongated substrate and a plurality of light emitting elements linearly mounted on one of main surfaces of the sub substrate; and a main substrate (2) having mounted thereon the linear light source assemblies (3). With this structure, even if the linear light source device (1) is elongated, luminance unevenness is hardly caused in planar light emitting devices and liquid crystal display devices.
    Type: Application
    Filed: June 23, 2006
    Publication date: December 17, 2009
    Inventors: Yoshihiko Chosa, Hiroshi Uchida, Tetsuya Fukudome, Hisakazu Kawahara, Toshiro Horiuchi, Yu Hasegawa, Kouji Hidaka, Hiroshi Yamaguchi
  • Linear illumination device and image reading apparatus using the same
    Patent number: 6204938
    Abstract: A linear illumination device, includes: a light conducting body; a light diffusion portion formed at least on one side surface in a longitudinal direction of the light conducting body; a light output portion formed in a portion of the light conducting body opposing the light diffusion portion; a light source portion disposed at a first end of the light conducting body; and a light reflecting layer provided at a second end opposing the first end of the light conducting body.
    Type: Grant
    Filed: July 14, 1998
    Date of Patent: March 20, 2001
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Toshiro Horiuchi, Kohichi Takesako, Takashi Yamanaka, Yoshihiko Chosa, Tetsuro Nakamura