Patents by Inventor Toshinobu Kobayashi

Toshinobu Kobayashi 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).

  • MANUFACTURING METHOD OF PNEUMATIC TIRE, AND PNEUMATIC TIRE
    Publication number: 20090095407
    Abstract: Reinforcing rubber which constitutes a reinforcing rubber layer in a pneumatic tire 10 is formed by winding a plurality of beltlike reinforcing rubber sheets adapted to have almost the same cross-sectional area and cross-sectional shape around a forming drum over its entire periphery while being shifted in the axial direction of the forming drum such that at least portions thereof in the width direction of the tire overlap each other over the whole periphery of the forming drum and by separately jointing both longitudinal ends of the respective reinforcing rubber sheets. As a result, a pneumatic tire with improved run-flat durability without hindering comfortable riding can be formed while hindrances to manufacture are minimized.
    Type: Application
    Filed: April 24, 2007
    Publication date: April 16, 2009
    Applicant: Bridgestone Corporation
    Inventor: Toshinobu Kobayashi
  • Pneumatic radial tires with circumferential cord belt layer having specified cord twisting structure
    Patent number: 6386257
    Abstract: A pneumatic radial tire for passenger car comprises a circumferential belt layer in addition to a slant belt layer, in which specified PET, nylon, PEN or vinylon fiber cords or steel cords are used in the circumferential belt layer.
    Type: Grant
    Filed: June 11, 1999
    Date of Patent: May 14, 2002
    Assignee: Bridgestone Corporation
    Inventors: Yoshihide Kohno, Eiji Yamanaka, Toshinobu Kobayashi, Takayuki Sato
  • Pneumatic radial tires with circumferential cord belt layer having specified cord twisting structure
    Patent number: 6382287
    Abstract: A pneumatic radial tire for passenger cars comprises a circumferential belt layer in addition to a slant belt layer, in which specified PET, nylon, PEN or vinylon fiber cords or steel cords are used in the circumferential belt layer.
    Type: Grant
    Filed: June 11, 1999
    Date of Patent: May 7, 2002
    Assignee: Bridgestone Corporation
    Inventors: Yoshihide Kohno, Eiji Yamanaka, Toshinobu Kobayashi, Takayuki Sato
  • Pneumatic radial tires with circumferential cord belt layer having specified cord twisting structure
    Patent number: 6279634
    Abstract: A pneumatic radial tire for passenger car comprises a circumferential belt layer in addition to a slant belt layer, in which specified PET, nylon, PEN or vinylon fiber cords or steel cords are used in the circumferential belt layer.
    Type: Grant
    Filed: June 11, 1999
    Date of Patent: August 28, 2001
    Assignee: Bridgestone Corporation
    Inventors: Yoshihide Kohno, Eiji Yamanaka, Toshinobu Kobayashi, Takayuki Sato
  • Pneumatic radial tires with circumferential cord belt layer having specified cord twisting structure
    Patent number: 5968295
    Abstract: A pneumatic radial tire for passenger car comprises a circumferential belt layer in addition to a slant belt layer, in which specified PET, nylon, PEN or vinylon fiber cords or steel cords are used in the circumferential belt layer.
    Type: Grant
    Filed: October 11, 1995
    Date of Patent: October 19, 1999
    Assignee: Bridgestone Corporation
    Inventors: Yoshihide Kohno, Eiji Yamanaka, Toshinobu Kobayashi, Takayuki Sato