Patents by Inventor Yoshitake Horiuchi

Yoshitake 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).

  • Film-shaped lightguide plate unit, planar light unit, display apparatus and electronic device
    Patent number: 8854574
    Abstract: A film-shaped lightguide plate unit enables reductions in thickness and weight. The film-shaped lightguide plate unit (7) has a film-shaped lightguide plate (6) and a support frame (8) made of a film material to support at least the outer peripheral edge of the film-shaped lightguide plate (6). Optical sheets including the film-shaped lightguide plate, a diffusing sheet, a prism sheet, etc. are disposed inside the support frame.
    Type: Grant
    Filed: August 22, 2008
    Date of Patent: October 7, 2014
    Assignee: Citizens Electronics Co., Ltd.
    Inventors: Yoshitake Horiuchi, Tatsuro Yamada
  • FILM-SHAPED LIGHTGUIDE PLATE UNIT, PLANAR LIGHT UNIT, DISPLAY APPARATUS AND ELECTRONIC DEVICE
    Publication number: 20090051851
    Abstract: A film-shaped lightguide plate unit enables reductions in thickness and weight. The film-shaped lightguide plate unit (7) has a film-shaped lightguide plate (6) and a support frame (8) made of a film material to support at least the outer peripheral edge of the film-shaped lightguide plate (6). Optical sheets including the film-shaped lightguide plate, a diffusing sheet, a prism sheet, etc. are disposed inside the support frame.
    Type: Application
    Filed: August 22, 2008
    Publication date: February 26, 2009
    Inventors: Yoshitake Horiuchi, Tatsuro Yamada
  • PLANAR LIGHT UNIT AND DISPLAY APPARATUS HAVING THE SAME
    Publication number: 20090051846
    Abstract: A backlight unit is capable of preventing an error in positioning of a light-emitting diode light source. The backlight unit (1) includes a film-shaped lightguide plate (6) having at least one light source accommodating hole (6a), and at least one light source (L) having at least one light-emitting diode element disposed in the light source accommodating hole. A retaining portion (6b) provided on the peripheral wall surface of the light source accommodating hole pressingly engages the peripheral wall surface of the light source to support it.
    Type: Application
    Filed: August 22, 2008
    Publication date: February 26, 2009
    Inventors: Yoshitake Horiuchi, Tatsuro Yamada