Patents by Inventor Hiroyuki Hosobuchi

Hiroyuki Hosobuchi 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).

  • Illumination device and electronic apparatus
    Publication number: 20050111239
    Abstract: The present invention relates to an illumination device. When the light from the, light emitting element is guided to the first illuminating portion of the light guide plate, the light is radiated from the whole upper surface of the first illuminating portion to illuminate the upper surface side of the light guide plate. Also, when the light from the light emitting element is guided to the second illuminating portion of the light guide plate, the light is radiated from the whole lower surface of the second illuminating portion to illuminate the lower surface side of the light guide plate. The upper and lower surface sides of the light guide plate can be excellently illuminated with one light guide plate.
    Type: Application
    Filed: December 11, 2003
    Publication date: May 26, 2005
    Applicant: Casio Computer Co., Ltd.
    Inventor: Hiroyuki Hosobuchi