Patents by Inventor Yasushi Ichihara

Yasushi Ichihara 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: 7484394
    Abstract: A gear roll-forming apparatus includes: a pinion die that is substantially the same in configuration and size as a bevel pinion; a pinion die holder for supporting the pinion die so as to allow rotation of the pinion die about a first axis of the pinion die while preventing axial movement B of the pinion die in an axial direction thereof from a small-diameter side toward a large-diameter side thereof; a gear die that is substantially the same in configuration and size as a bevel gear and meshes with the pinion die; and a pressing member for bringing a bevel gear blank into press contact with the pinion die, the bevel gear blank being arranged so as to sandwich the pinion die in cooperation with the gear die. By relatively rotating the gear die and the pinion die holder about a second axis of the gear die, the teeth of the pinion die are rolled with respect to the bevel gear blank.
    Type: Grant
    Filed: November 17, 2006
    Date of Patent: February 3, 2009
    Assignee: Toyoseiki Kabushiki Kaisha
    Inventors: Nobuo Ogishi, Yasushi Ichihara
  • Publication number: 20070068211
    Abstract: A gear roll-forming apparatus includes: a pinion die that is substantially the same in configuration and size as a bevel pinion; a pinion die holder for supporting the pinion die so as to allow rotation of the pinion die about a first axis of the pinion die while preventing axial movement B of the pinion die in an axial direction thereof from a small-diameter side toward a large-diameter side thereof, a gear die that is substantially the same in configuration and size as a bevel gear and meshes with the pinion die; and a pressing member for bringing a bevel gear blank into press contact with the pinion die, the bevel gear blank being arranged so as to sandwich the pinion die in cooperation with the gear die. By relatively rotating the gear die and the pinion die holder about a second axis of the gear die, the teeth of the pinion die are rolled with respect to the bevel gear blank.
    Type: Application
    Filed: November 17, 2006
    Publication date: March 29, 2007
    Inventors: Nobuo Ogishi, Yasushi Ichihara
  • 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