Patents by Inventor Kosuke SHIMAYAMA

Kosuke SHIMAYAMA 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).

  • Patent number: 11254347
    Abstract: Provided is a rack bush capable of reducing an effect on the feeling of a steering operation. A rack bush (1) comprises: a rack bush 1 housed in a cylindrical housing (4), which supports a load applied to a rack bar (5) while allowing movement of the rack bar (5) in the direction of the axis (O) and can be freely expanded and contracted in the radial direction; and elastic rings (3) mounted on the bush body (2). The bush body (2) has mounting grooves (28), which are formed in the circumferential direction on an outer peripheral surface (22) for mounting the elastic ring (3). An axis (P) of the mounting groove (28) are shifted from the axis (O) of the bush body (2). By this arrangement, there are formed an elastic ring protruding part (10), where the elastic rings (3) protrude greatly from the outer peripheral surface (22) of the bush body (2), and an elastic ring embedded part (11), where the elastic rings (3) are embedded in the outer peripheral surface (22) of the bush body (2).
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: February 22, 2022
    Assignees: MAZDA MOTOR CORPORATION, OILES CORPORATION
    Inventors: Gaku Ikeyama, Junya Kuwagaki, Hiroyuki Kikuchi, Toshihiko Sekine, Noboru Nakagawa, Katsunori Saito, Kosuke Shimayama
  • Publication number: 20210188341
    Abstract: Provided is a rack bush capable of reducing an effect on the feeling of a steering operation. A rack bush (1) comprises: a rack bush 1 housed in a cylindrical housing (4), which supports a load applied to a rack bar (5) while allowing movement of the rack bar (5) in the direction of the axis (O) and can be freely expanded and contracted in the radial direction; and elastic rings (3) mounted on the bush body (2). The bush body (2) has mounting grooves (28), which are formed in the circumferential direction on an outer peripheral surface (22) for mounting the elastic ring (3). An axis (P) of the mounting groove (28) are shifted from the axis (O) of the bush body (2). By this arrangement, there are formed an elastic ring protruding part (10), where the elastic rings (3) protrude greatly from the outer peripheral surface (22) of the bush body (2), and an elastic ring embedded part (11), where the elastic rings (3) are embedded in the outer peripheral surface (22) of the bush body (2).
    Type: Application
    Filed: October 17, 2018
    Publication date: June 24, 2021
    Inventors: Gaku IKEYAMA, Junya KUWAGAKI, Hirokyuki KIKUCHI, Toshihiko SEKINE, Noboru NAKAGAWA, Katsunori SAITO, Kosuke SHIMAYAMA