Patents by Inventor Shigeharu Mizuno

Shigeharu Mizuno 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).

  • Cylinder for automatic transmission
    Patent number: 6786843
    Abstract: In a structure for an automatic transmission wherein a brake is arranged in a casing, a hydraulic servomechanism for actuating the brake includes a cylinder, a piston, a return spring for biasing the piston and including an annular portion abutting on the piston and a plurality of leaf-spring portions protruding outward equiangularly from the outer periphery of the annular portion, and a plurality of pressing portions formed with the piston and abutting on the servomechanism through clearances between the leaf-spring portions of the return spring.
    Type: Grant
    Filed: September 23, 2002
    Date of Patent: September 7, 2004
    Assignee: Jatco LTD
    Inventor: Shigeharu Mizuno
  • Cylinder for automatic transmission
    Publication number: 20030064848
    Abstract: In a structure for an automatic transmission wherein a brake is arranged in a casing, a hydraulic servomechanism for actuating the brake includes a cylinder, a piston, a return spring for biasing the piston and including an annular portion abutting on the piston and a plurality of leaf-spring portions protruding outward equiangularly from the outer periphery of the annular portion, and a plurality of pressing portions formed with the piston and abutting on the servomechanism through clearances between the leaf-spring portions of the return spring.
    Type: Application
    Filed: September 23, 2002
    Publication date: April 3, 2003
    Applicant: JATCO Ltd.
    Inventor: Shigeharu Mizuno