Patents by Inventor Akihiro Shiigai

Akihiro Shiigai 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).

  • Attitude controller and saddle riding type vehicle having the same
    Patent number: 9346510
    Abstract: An attitude controller eliminates a skid motion of a banked vehicle when travelling through a curve. The attitude controller includes a lateral acceleration sensor that obtains lateral acceleration, as rightward or leftward accelerations, acting on a vehicle of a motorcycle, a bank angle detector that detects a bank angle of the vehicle, and a longitudinal force controller that decreases, independently of each of the wheels, an absolute value of a longitudinal force as the sum of forward and backward forces acting on front and rear wheels based on the obtained lateral acceleration and the detected bank angle.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: May 24, 2016
    Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Hiroto Watanabe, Hiroyuki Inoue, Takahiro Fujii, Yoshimichi Seki, Akihiro Shiigai
  • ATTITUDE CONTROLLER AND SADDLE RIDING TYPE VEHICLE HAVING THE SAME
    Publication number: 20140200780
    Abstract: An attitude controller eliminates a skid motion of a banked vehicle when travelling through a curve. The attitude controller includes a lateral acceleration sensor that obtains lateral acceleration, as rightward or leftward accelerations, acting on a vehicle of a motorcycle, a bank angle detector that detects a bank angle of the vehicle, and a longitudinal force controller that decreases, independently of each of the wheels, an absolute value of a longitudinal force as the sum of forward and backward forces acting on front and rear wheels based on the obtained lateral acceleration and the detected bank angle.
    Type: Application
    Filed: July 27, 2012
    Publication date: July 17, 2014
    Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Hiroto Watanabe, Hiroyuki Inoue, Takahiro Fujii, Yoshimichi Seki, Akihiro Shiigai