Patents by Inventor Kohichi Takesako

Kohichi Takesako 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 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