Patents by Inventor Keitaro TERAO

Keitaro TERAO 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).

  • Guide bush and rack-and-pinion steering gear unit
    Patent number: 9663137
    Abstract: A guide bush includes a plurality of bush elements combined to form a cylindrical shape as a whole. The plurality of bush elements includes a cylindrical fitting portion. The cylindrical fitting portion is fitted in a fit-and-hold portion of a housing, and has an inner peripheral surface configured to guide an outer peripheral surface of a displacement shaft that has been inserted in the cylindrical fitting portion in an axially displaceable manner. The diameter of the circumscribed circle of the plurality of bush elements in a state in which the end faces of the plurality of bush elements with respect to a circumferential direction abut each other is not greater than the inside diameter of the fit-and-hold portion.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: May 30, 2017
    Assignee: NSK LTD.
    Inventors: Hiroto Mizutani, Keitaro Terao
  • GUIDE BUSH AND RACK-AND-PINION STEERING GEAR UNIT
    Publication number: 20160059883
    Abstract: A guide bush includes a plurality of bush elements combined to form a cylindrical shape as a whole. The plurality of bush elements includes a cylindrical fitting portion. The cylindrical fitting portion is fitted in a fit-and-hold portion of a housing, and has an inner peripheral surface configured to guide an outer peripheral surface of a displacement shaft that has been inserted in the cylindrical fitting portion in an axially displaceable manner. The diameter of the circumscribed circle of the plurality of bush elements in a state in which the end faces of the plurality of bush elements with respect to a circumferential direction abut each other is not greater than the inside diameter of the fit-and-hold portion.
    Type: Application
    Filed: June 4, 2014
    Publication date: March 3, 2016
    Applicant: NSK LTD.
    Inventors: Hiroto MIZUTANI, Keitaro TERAO