Patents by Inventor Nobuharu Shiina

Nobuharu Shiina 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).

  • Rubber composition and heavy duty pneumatic tire using the rubber composition
    Patent number: 6822027
    Abstract: The rubber composition exhibits improved abrasion resistance, tear resistance and low heat generating property and is advantageously used for tread rubber of heavy duty pneumatic tires.
    Type: Grant
    Filed: August 31, 2001
    Date of Patent: November 23, 2004
    Assignee: Bridgestone Corporation
    Inventor: Nobuharu Shiina
  • Rubber composition and heavy duty pneumatic tire using the rubber composition
    Publication number: 20020049294
    Abstract: A rubber composition obtained by compounding (A) a rubber component comprising 15 to 55% by weight of (i) a modified styrene-butadiene copolymer rubber which is obtained by solution polymerization and has a tin atom introduced into its molecular chain, 45 to 85% by weight of (ii) at least one rubber selected from natural rubber and synthetic isoprene rubbers, and (B) a hydrazide compound.
    Type: Application
    Filed: August 31, 2001
    Publication date: April 25, 2002
    Applicant: BRIDGESTONE CORPORATION
    Inventor: Nobuharu Shiina