Patents by Inventor Toshiya Wakasa

Toshiya Wakasa 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: 5363149
    Abstract: A projection television set includes a body composed of at least two divided upper and lower units, a screen assembly having an integrally formed screen corresponding to the body, and a plurality of bolt and nut assemblies for coupling the divided units together. Each of the upper and lower units has a projector for emitting light rays for forming an image on a screen and a reflector for reflecting the light rays from the projector onto the screen. The projector of the lower unit is arranged below the reflector of the lower unit, and the projector of the upper unit is arranged in an intermediate position between the reflector of the upper unit and the reflector of the lower unit so that setting angles of the two reflectors are different from each other. A screen assembly is mounted on a front face of the body.
    Type: Grant
    Filed: April 21, 1993
    Date of Patent: November 8, 1994
    Assignee: Pioneer Electronic Corporation
    Inventors: Takashi Furuno, Toshiya Wakasa, Jun Iizuka, Kanehiro Hagiwara, Mitsuyoshi Mitake
  • Patent number: 5317449
    Abstract: A projection television set in which a seamless image may be obtained on a screen. A screen plate of a screen assembly is held under a suspended state by a frame in a state wherein the left and right parts are centered in the frame. A cruciform light-shielding frame is mounted on the frame. A light-shielding plate is swingably mounted on a horizontal light-shielding frame of the frame. The position of the light shielding plate is adjusted in response to the vertical movement of a horizontal joint. Also, the horizontal joint line adjusting mechanism is provided independently of a centering mechanism for a vertical joint line.
    Type: Grant
    Filed: April 20, 1993
    Date of Patent: May 31, 1994
    Assignee: Pioneer Electronic Corporation
    Inventors: Takashi Furuno, Toshiya Wakasa, Jun Iizuka, Kanehiro Hagiwara, Mitsuyoshi Mitake
  • Patent number: 4903137
    Abstract: A multiple projection television receiver is made from of identical modules, each of the modules each of which have three cathode-ray tubes corresponding to the colors red, green and blue, respectively. The modules are stacked vertically and horizontally to form a single picture made from the modules. Each of the modules has a screen in the front behind which is located a Fresnel lens. The cathode-ray tubes project the picture through the Fresnel lens onto the screen. Couplers which are attached to the top of all the modules except the modules on the top row, which do not have couplers on top, are U-shaped support members which interlock with modules stacked on top. The height of the couplers may be larger towards the rear so that the assembled multiple projection television receiver is inclined forward. Engaging members extend out and interlock with adjacent modules to horizontally fix the television receiver modules.
    Type: Grant
    Filed: December 6, 1988
    Date of Patent: February 20, 1990
    Assignee: Pioneer Electronic Corporation
    Inventor: Toshiya Wakasa
  • Patent number: RE34689
    Abstract: A multiple projection television receiver is made from of identical modules, each of the modules each of which have three cathode-ray tubes corresponding to the colors red, green and blue, respectively. The modules are stacked vertically and horizontally to form a single picture made from the modules. Each of the modules has a screen in the front behind which is located a Fresnel lens. The cathode-ray tubes project the picture through the Fresnel lens onto the screen. Couplers which are attached to the top of all the modules except the modules on the top row, which do not have couplers on top, are U-shaped support members which interlock with modules stacked on top. The height of the couplers may be larger towards the rear so that the assembled multiple projection television receiver is inclined forward. Engaging members extend out and interlock with adjacent modules to horizontally fix the television receiver modules.
    Type: Grant
    Filed: February 7, 1992
    Date of Patent: August 9, 1994
    Assignee: Pioneer Electronic Corporation
    Inventor: Toshiya Wakasa