Patents by Inventor Tsutomu Shiraishi

Tsutomu Shiraishi 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).

  • One-way clutch
    Patent number: 7055665
    Abstract: A retainer (12) arranged on an inner side of an outer ring (11) is formed with a projection (12d) at an outer periphery thereof by being projected from one end side of the outer ring (11) to an outer side, a recess portion (2b) is formed at a surface of a hole. (2a) of a housing (2) which is a member for fitting the outer ring (11) and by fitting the projection 12d of the retainer (12) to the recess portion (2b), not only the outer ring (11) but also the retainer (12) can be constituted to be unable to rotate relative to the housing (2), the relative rotation between the outer ring (11) and the retainer (12) are substantially made unable to carry out in the state via the housing (2).
    Type: Grant
    Filed: June 26, 2003
    Date of Patent: June 6, 2006
    Assignee: Koyo Seiko Co., Ltd.
    Inventors: Tsutomu Shiraishi, Kazuo Iga
  • One-way clutch
    Publication number: 20040000459
    Abstract: A retainer (12) arranged on an inner side of an outer ring (11) is formed with a projection (12d) at an outer periphery thereof by being projected from one end side of the outer ring (11) to an outer side, a recess portion (2b) is formed at a surface of a hole. (2a) of a housing (2) which is a member for fitting the outer ring (11) and by fitting the projection 12d of the retainer (12) to the recess portion (2b), not only the outer ring (11) but also the retainer (12) can be constituted to be unable to rotate relative to the housing (2), the relative rotation between the outer ring (11) and the retainer (12) are substantially made unable to carry out in the state via the housing (2).
    Type: Application
    Filed: June 26, 2003
    Publication date: January 1, 2004
    Applicant: KOYO SEIKO CO., LTD.
    Inventors: Tsutomu Shiraishi, Kazuo Iga