Patents by Inventor UTSUNOMIYA KIK CO., LTD.

UTSUNOMIYA KIK CO., LTD. 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).

  • ROLLER BEARING CAGE AND MANUFACTURING METHOD THEREFOR
    Publication number: 20130202241
    Abstract: A roller bearing cage includes ring portions and pillar portions extend in an axial direction to connect the ring portions and disposed along a circumferential direction to define pocket portions. The pillar portion includes a bent portion formed in the vicinity of an axial center of the pillar portion so as to protrude radially inwards of the ring portions. A ring portion thickness is larger than a bent portion thickness; a pillar end portion thickness is larger than the bent portion thickness; and the pillar end portion thickness is equal to the ring, portion thickness or more, where the ring portion thickness is a radial thickness of the ring portion; the bent portion thickness is a radial thickness of the bent portion; and the pillar end portion thickness is a thickness of a portion of the pillar portion connected to the ring portion and in the vicinity thereof.
    Type: Application
    Filed: February 1, 2013
    Publication date: August 8, 2013
    Applicants: UTSUNOMIYA KIKI CO., LTD., JTEKT CORPORATION
    Inventors: JTEKT CORPORATION, UTSUNOMIYA KIK CO., LTD.