Patents by Inventor Masahiro Houjo

Masahiro Houjo 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 tire using the same
    Patent number: 8318861
    Abstract: This invention relates to a rubber composition capable of using in a tread rubber of a tire to improve both an initial gripping performance and a running stability of the tire as compared with those of conventional tires, and more particularly to a rubber composition formed by compounding an indene-containing C9-based resin having a softening point of 130° C.-190° C. and an indene content of 30-80 mass % into a rubber component.
    Type: Grant
    Filed: January 11, 2008
    Date of Patent: November 27, 2012
    Assignee: Bridgestone Corporation
    Inventors: Masahiro Houjo, Masayuki Hashimoto, Shigeki Kamo, Seiichi Kato, Masaki Toyoda
  • RUBBER COMPOSITION AND TIRE USING THE SAME
    Publication number: 20100113703
    Abstract: This invention relates to a rubber composition capable of using in a tread rubber of a tire to improve both an initial gripping performance and a running stability of the tire as compared with those of conventional tires, and more particularly to a rubber composition formed by compounding an indene-containing C9-based resin having a softening point of 130° C.-190° C. and an indene content of 30-80 mass % into a rubber component.
    Type: Application
    Filed: January 11, 2008
    Publication date: May 6, 2010
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Masahiro Houjo, Masayuki Hashimoto, Shigeki Kamo, Seiichi Kato, Masaki Toyoda