Patents by Inventor Mitsuhiko FUJIKAKE

Mitsuhiko FUJIKAKE 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).

  • Rack bushing and steering device
    Patent number: 11878740
    Abstract: A clearance is created between an inner circumference of a bushing main body (2) which surrounds a rack (5) across a row of rack gear teeth (50) and an outer circumference of the rack (5), and two supporting surfaces (21A, 21B) which face each other with a bushing main body axis O therebetween and a supporting surface (21C) which faces a back surface of the rack (5), each extending along an x-axis direction, are formed on the inner circumference of the bushing main body (2). The rack (5) in a neutral state is supported by the two supporting surfaces (21A, 21B) so as to be displaceable along a z-axis direction, and the rack (5) in operation is stably supported by the three supporting surfaces (21A-21C) at three places.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: January 23, 2024
    Assignees: MAZDA MOTOR CORPORATION, KYB CORPORATION, OILES CORPORATION
    Inventors: Gaku Ikeyama, Kazuya Sato, Junya Kuwagaki, Yoshimitsu Fumimoto, Masaki Takahashi, Tomonori Taniguchi, Takuzo Ito, Mitsuhiko Fujikake, Hiroki Masuda, Hiroyuki Kikuchi, Jun Ouchi, Kazuhiko Akeda
  • RACK BUSHING AND STEERING DEVICE
    Publication number: 20220194461
    Abstract: A clearance is created between an inner circumference of a bushing main body (2) which surrounds a rack (5) across a row of rack gear teeth (50) and an outer circumference of the rack (5), and two supporting surfaces (21A, 21B) which face each other with a bushing main body axis O therebetween and a supporting surface (21C) which faces a back surface of the rack (5), each extending along an x-axis direction, are formed on the inner circumference of the bushing main body (2). The rack (5) in a neutral state is supported by the two supporting surfaces (21A, 21B) so as to be displaceable along a z-axis direction, and the rack (5) in operation is stably supported by the three supporting surfaces (21A-21C) at three places.
    Type: Application
    Filed: April 2, 2020
    Publication date: June 23, 2022
    Inventors: Gaku IKEYAMA, Kazuya SATO, Junya KUWAGAKI, Yoshimitsu FUMIMOTO, Masaki TAKAHASHI, Tomonori TANIGUCHI, Takuzo ITO, Mitsuhiko FUJIKAKE, Hiroki MASUDA, Hiroyuki KIKUCHI, Jun OOUCHI, Kazuhiko AKEDA