Patents by Inventor Masuo Araki

Masuo Araki 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).

  • Hydraulic clutch with wave spring
    Patent number: 5960923
    Abstract: A hydraulic clutch is made up of alternatively arranged discs and driven plates in a clutch drum which is actuated by a hydraulic piston and a wave spring for reducing a shock made of a strip formed into a ring and having pawls at both ends thereof extending in an axial or radial direction of the ring. The pawls engage with grooves in the hydraulic piston or the spline for mounting the driven plates, thereby preventing the wave spring from rotating with the clutch plates and the piston surface from wear or abrasion.
    Type: Grant
    Filed: December 5, 1997
    Date of Patent: October 5, 1999
    Assignee: Exedy Corporation
    Inventor: Masuo Araki