Patents by Inventor Seichi Tahara

Seichi Tahara 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, method for preventing discoloration of rubber composition, and tire
    Patent number: 9200141
    Abstract: Provided is a rubber composition capable of preventing discoloration due to an amine-based antiaging agent and wax without deteriorating the ozone resistance not only in cases where the rubber composition is used in side wall portions of tires but also in cases where the rubber composition is used in tread portions of tires. The rubber composition comprises at least one rubber component selected from a dienic synthetic rubber and a natural rubber and, as incorporated therein, at least one nonionic surfactant selected from specific compounds.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: December 1, 2015
    Assignees: BRIDGESTONE CORPORATION, KAO CORPORATION
    Inventors: Seichi Tahara, Kumi Fujiki, Masaaki Tsuchihashi, Tetsuo Takano
  • RUBBER COMPOSITION, METHOD FOR PREVENTING DISCOLORATION OF RUBBER COMPOSITION, AND TIRE
    Publication number: 20130184387
    Abstract: Provided is a rubber composition capable of preventing discoloration due to an amine-based antiaging agent and wax without deteriorating the ozone resistance not only in cases where the rubber composition is used in side wall portions of tires but also in cases where the rubber composition is used in tread portions of tires. The rubber composition comprises at least one rubber component selected from a dienic synthetic rubber and a natural rubber and, as incorporated therein, at least one nonionic surfactant selected from specific compounds.
    Type: Application
    Filed: August 11, 2011
    Publication date: July 18, 2013
    Applicants: KAO CORPORATION, BRIDGESTONE CORPORATION
    Inventors: Seichi Tahara, Kumi Fujiki, Masaaki Tsuchihashi, Tetsuo Takano