Patents by Inventor Kanehiro Hagiwara

Kanehiro Hagiwara 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).

  • Multiple projection television system
    Patent number: 5512968
    Abstract: A multiple projection television system is comprised of a plurality of projection units stacked in matrix to form a large television screen. Each of the projection units has a cabinet, a projector provided in the cabinet, and a screen secured to a front portion of the cabinet. A mounting frame is provided in the cabinet for slidably mounting the projector in forward and rearward directions. A back of the cabinet is opened so as to allow removing of the projector from the cabinet. The screen is detachably secured to the cabinet so as to allow removing of the projector from the cabinet.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: April 30, 1996
    Assignee: Pioneer Electronic Corporation
    Inventors: Kanehiro Hagiwara, Yasushi Ichihara, Mitsuyoshi Mitake, Takashi Furuno, Saori Kishida, Jun Iizuka, Youichi Fujikawa
  • Projection television set
    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
  • Projection television set
    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