Patents by Inventor Hiroyuki Tobori

Hiroyuki Tobori 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).

  • METHOD FOR DETECTING PUNCTURE IN TIRE CURING BLADDER
    Publication number: 20230391034
    Abstract: A method for detecting a puncture in a tire curing bladder during a curing process of heating and pressurizing an uncured tire set in a curing mold from an inside with the bladder, the curing process has the steps of heating the tire with the bladder having a first internal pressure applied by feed of a first curing medium, and pressurizing the tire with the bladder having a second internal pressure applied by feed of a second curing medium after the heating step. The second internal pressure is higher than the first internal pressure. In the pressurizing step, the bladder having the second internal pressure is depressurized at least temporarily, and a sensor detects leakage of the first curing medium to detect a puncture.
    Type: Application
    Filed: April 21, 2023
    Publication date: December 7, 2023
    Applicant: Toyo Tire Corporation
    Inventor: Hiroyuki Tobori
  • Tire tread rubber composition and tire for passenger car
    Patent number: 4946887
    Abstract: A tire tread rubber composition having a two-peak tan.delta. characterized in that the temperature distribution curve for loss tangent (tan.delta.) has two peaks in the range from -120.degree. C. to +100.degree. C. is useful as a tire tread rubber composition.
    Type: Grant
    Filed: October 20, 1988
    Date of Patent: August 7, 1990
    Assignee: Toyo Tire & Rubber Company Limited
    Inventors: Hiroshi Takino, Satoshi Iwama, Riichiro Ohara, Noriyuki Isobe, Hiroyuki Tobori, Makoto Komai