Patents by Inventor Norihiko Yokoyama

Norihiko Yokoyama 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).

  • Belt-type continuously variable transmission for working machine
    Patent number: 9933053
    Abstract: A belt-type continuously variable transmission capable of continuously changing a speed reduction ratio of a driven pulley to a drive pulley, has a speed reduction ratio regulation mechanism that regulates a minimum speed reduction ratio of the driven pulley to the drive pulley. The driven pulley includes a fixed sheave, a movable sheave displaceable in an axial direction with respect to the fixed sheave, and a coil spring that urges the movable sheave toward the fixed sheave. The speed reduction ratio regulation mechanism has a swing arm that adjusts an allowable range in which moving away in an axial direction of the movable sheave with respect to the fixed sheave is possible, and a regulation drive section that drives the swing distal end portion of the swing arm to swing continuously.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: April 3, 2018
    Assignees: HONDA MOTOR CO., LTD, KABUSHIKI KAISHA F.C.C.
    Inventors: Hajime Yoshimura, Yuji Matsuo, Tomoaki Ishikawa, Makoto Kataoka, Shigeki Kawashima, Norihiko Yokoyama, Naoyuki Miwa
  • BELT-TYPE CONTINUOUSLY VARIABLE TRANSMISSION FOR WORKING MACHINE
    Publication number: 20170114875
    Abstract: A belt-type continuously variable transmission capable of continuously changing a speed reduction ratio of a driven pulley to a drive pulley, has a speed reduction ratio regulation mechanism that regulates a minimum speed reduction ratio of the driven pulley to the drive pulley. The driven pulley includes a fixed sheave, a movable sheave displaceable in an axial direction with respect to the fixed sheave, and a coil spring that urges the movable sheave toward the fixed sheave. The speed reduction ratio regulation mechanism has a swing arm that adjusts an allowable range in which moving away in an axial direction of the movable sheave with respect to the fixed sheave is possible, and a regulation drive section that drives the swing distal end portion of the swing arm to swing continuously.
    Type: Application
    Filed: October 6, 2016
    Publication date: April 27, 2017
    Inventors: Hajime Yoshimura, Yuji Matsuo, Tomoaki Ishikawa, Makoto Kataoka, Shigeki Kawashima, Norihiko Yokoyama, Naoyuki Miwa