Patents by Inventor Koutaro Ogura

Koutaro Ogura 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: 8235164
    Abstract: A snowmobile includes steering handlebars; a steering column attached to the steering handlebars and extending directly downward or obliquely downward; a power steering device having a motor and attached to the steering column; a power transmission mechanism arranged to transmit at least the driving force of the motor; and a ski coupled to the power transmission mechanism to be turned by the power transmission mechanism. The power steering device includes a sensor arranged to detect the rotation of the steering column. The motor has a motor shaft tilted from both the fore and aft direction and the left and right direction of the vehicle.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: August 7, 2012
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Hiroyuki Okada, Koutaro Ogura
  • Patent number: 7779946
    Abstract: A snowmobile includes steering handlebars, a pair of left and right skis, and a power transmission mechanism arranged to couple the steering handlebars and the skis. The power transmission mechanism includes a first rotary shaft extending directly downward or obliquely downward from the steering handlebars for rotation along with the steering handlebars; a first link mechanism coupled to the first rotary shaft; a second rotary shaft coupled to the first link mechanism and arranged to rotate along with the rotation of the first rotary shaft via the first link mechanism, the second rotary shaft being disposed on a different axis from that of the first rotary shaft; a second link mechanism disposed between the second rotary shaft and the skis; and a power steering device mounted to the second link mechanism as a part thereof and having an actuator to be driven based on the rotation of the second rotary shaft.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: August 24, 2010
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Hiroyuki Okada, Koutaro Ogura
  • Publication number: 20090152036
    Abstract: A snowmobile includes steering handlebars; a steering column attached to the steering handlebars and extending directly downward or obliquely downward; a power steering device having a motor and attached to the steering column; a power transmission mechanism arranged to transmit at least the driving force of the motor; and a ski coupled to the power transmission mechanism to be turned by the power transmission mechanism. The power steering device includes a sensor arranged to detect the rotation of the steering column. The motor has a motor shaft tilted from both the fore and aft direction and the left and right direction of the vehicle.
    Type: Application
    Filed: December 12, 2007
    Publication date: June 18, 2009
    Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Hiroyuki OKADA, Koutaro OGURA
  • Publication number: 20090152035
    Abstract: A snowmobile includes steering handlebars, a pair of left and right skis, and a power transmission mechanism arranged to couple the steering handlebars and the skis. The power transmission mechanism includes a first rotary shaft extending directly downward or obliquely downward from the steering handlebars for rotation along with the steering handlebars; a first link mechanism coupled to the first rotary shaft; a second rotary shaft coupled to the first link mechanism and arranged to rotate along with the rotation of the first rotary shaft via the first link mechanism, the second rotary shaft being disposed on a different axis from that of the first rotary shaft; a second link mechanism disposed between the second rotary shaft and the skis; and a power steering device mounted to the second link mechanism as a part thereof and having an actuator to be driven based on the rotation of the second rotary shaft.
    Type: Application
    Filed: December 12, 2007
    Publication date: June 18, 2009
    Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Hiroyuki OKADA, Koutaro OGURA