Patents by Inventor Shouji Yanagawa

Shouji Yanagawa 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).

  • Cage for radial ball bearing
    Patent number: 6276836
    Abstract: A cage for a radial ball bearing formed generally in an annular shape and provided with a plurality of pockets with openings arranged in a circumferential direction to rotatably hold a plurality of balls adapted to rotate around a rolling central axis in the pockets, each of the pockets having an inner surface portion which includes a peripheral edge portions along the opening on the peripheral surfaces of the cage and is formed with an axial cylindrical surface having a central axis placed in the rolling central axis of the ball.
    Type: Grant
    Filed: December 29, 1997
    Date of Patent: August 21, 2001
    Assignees: NSK Ltd., Kabushikigaisha Takaiseiki
    Inventors: Hironori Suzuki, Shigeki Maehara, Shouji Yanagawa