Patents by Inventor Naganori IMAMURA

Naganori IMAMURA 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 shaft supporting apparatus and steering apparatus for vehicle therewith
    Patent number: 9376138
    Abstract: The rack shaft supporting apparatus includes a support yoke, a plug, a torsion spring or a spiral spring and a guide bush. A plug cam portion of the plug includes three plug cam surfaces. A yoke cam portion of the support yoke includes three yoke cam surfaces having a shape corresponding to that of the plug cam surfaces. The yoke cam surface contacts to the plug cam surface. The torsion spring or the spiral spring imparts force rotating the yoke cam portion against the plug cam portion to the support yoke. The guide bush includes a bush body and an arm portion. The bush body is fixed to the housing. The arm portion supports a side portion of the rack shaft.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: June 28, 2016
    Assignee: JTEKT CORPORATION
    Inventor: Naganori Imamura
  • RACK SHAFT SUPPORTING APPARATUS AND STEERING APPARATUS FOR VEHICLE THEREWITH
    Publication number: 20130247696
    Abstract: The rack shaft supporting apparatus includes a support yoke, a plug, a torsion spring or a spiral spring and a guide bush. A plug cam portion of the plug includes three plug cam surfaces. A yoke cam portion of the support yoke includes three yoke cam surfaces having a shape corresponding to that of the plug cam surfaces. The yoke cam surface contacts to the plug cam surface. The torsion spring or the spiral spring imparts force rotating the yoke cam portion against the plug cam portion to the support yoke. The guide bush includes a bush body and an arm portion. The bush body is fixed to the housing. The arm portion supports a side portion of the rack shaft.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 26, 2013
    Applicant: JTEKT CORPORATION
    Inventor: Naganori IMAMURA