Patents by Inventor Hiroshige Hayasaki

Hiroshige Hayasaki 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).

  • Patent number: 6721021
    Abstract: A liquid crystal display device is constructed by arranging, on the back of a liquid crystal panel 1 for displaying an image, an optical guide plate unit 5 constructed to irradiate the whole surface of the liquid crystal panel 1 with a light coming from a lamp unit 2 and reflected by a lamp reflector 3; by positioning the liquid crystal panel 1 in contact with a liquid crystal panel receiving portion 8 which is rounded by folding back a lamp cover 4 constructed to cover the lamp unit 2; and by supporting and fixing the liquid crystal panel 1 and the optical guide plate unit 5 by a front frame 7 and a back frame 6.
    Type: Grant
    Filed: August 27, 2002
    Date of Patent: April 13, 2004
    Assignee: Kabushiki Kaisha Advanced Display
    Inventors: Takuya Sakamoto, Hiroshige Hayasaki
  • Patent number: 6522371
    Abstract: A mold frame and a lamp cover composing a liquid crystal display are fixed without using a screw and without increasing the thickness of the liquid crystal display. They are fixed by creating projections at parts of the lamp cover, by creating receiving holes through the mold frame at the position corresponding to the projections and by inserting the projections through the receiving holes and by caulking the edge of the projections.
    Type: Grant
    Filed: August 29, 2000
    Date of Patent: February 18, 2003
    Assignee: Kabushiki Kaisha Advanced Display
    Inventors: Takuya Sakamoto, Hiroshige Hayasaki
  • Publication number: 20020196384
    Abstract: In a liquid crystal display device of the prior art, a liquid crystal panel is fixed by a panel receiving portion of a lamp cover. When the liquid crystal display device is assembled, the liquid crystal panel rides on the panel receiving portion so that it cannot be positioned while being chipped.
    Type: Application
    Filed: August 27, 2002
    Publication date: December 26, 2002
    Applicant: KABUSHIKI KAISHA ADVANCED DISPLAY
    Inventors: Takuya Sakamoto, Hiroshige Hayasaki
  • Patent number: 6480245
    Abstract: A liquid crystal display device includes: a transmission-type liquid crystal panel; a sheet-like light source device for radiating light to a back surface of the liquid crystal panel, the sheet-like light source device including a lamp, a conducting lamp reflector, and a light-conducting plate; a circuit board connected to the liquid crystal panel for supplying a signal necessary for driving the liquid crystal panel; and a mechanism part for housing and holding all three of the liquid crystal panel, the sheet-like light source device, and the circuit board. The mechanism part includes at least one metal part, and the at least one metal part is fixedly attached to the lamp reflector via any one of a screw fastening member, a pinch fastening member, or a snap fastening member. The liquid crystal display device is capable of reducing display deficiencies due to electric noise and is also capable of obtaining clearer images.
    Type: Grant
    Filed: November 17, 2000
    Date of Patent: November 12, 2002
    Assignee: Advanced Display Inc.
    Inventors: Takuya Sakamoto, Hiroshige Hayasaki
  • Patent number: 6445430
    Abstract: In a liquid crystal display device of the prior art, a liquid crystal panel is fixed by a panel receiving portion of a lamp cover. When the liquid crystal display device is assembled, the liquid crystal panel rides on the panel receiving portion so that it cannot be positioned while being chipped. A liquid crystal display device is constructed: by arranging, on the back of a liquid crystal panel 1 for displaying an image, an optical guide plate unit 5 constructed to irradiate the whole surface of the liquid crystal panel 1 with a light coming from a lamp unit 2 and reflected by a lamp reflector 3; by positioning the liquid crystal panel 1 in contact with a liquid crystal panel receiving portion 8 which is rounded by folding back a lamp cover 4 constructed to cover the lamp unit 2; and by supporting and fixing the liquid crystal panel 1 and the optical guide plate unit 5 by a front frame 7 and a back frame 6.
    Type: Grant
    Filed: July 5, 2000
    Date of Patent: September 3, 2002
    Assignee: Kabushiki Kaisha Advanced Display
    Inventors: Takuya Sakamoto, Hiroshige Hayasaki