Patents by Inventor Yuuki Muzushima

Yuuki Muzushima 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).

  • STEERING RACK AND METHOD FOR MANUFACTURING THE SAME
    Publication number: 20190047609
    Abstract: A steering rack (11a) meshes with a pinion rotatably driven by the input shaft (6) of a steering gear (5) constituting an automotive steering device. The steering rack (11a) is provided with a an axially extending rod part (15) of round cross section, and a plurality of rack teeth (16) formed on a radial one side surface of an axial portion of the rod part (15), the rack teeth (16) meshing with the pinion. At least one dummy tooth (42) is formed in portions that are axial parts of the rod part (15) and are adjacent to both axial sides of the plurality of rack teeth (16). The dummy tooth (42) has a tooth height less than the rack teeth (16) and does not mesh with the pinion.
    Type: Application
    Filed: October 15, 2018
    Publication date: February 14, 2019
    Applicant: NSK LTD.
    Inventors: Yuuki Muzushima, Nobuyuki Hagiwara, Kazuto Kobayashi