Patents by Inventor Toshiyuki Mitsutake

Toshiyuki Mitsutake 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).

  • Cap-and-base type pneumatic tires
    Patent number: 5429164
    Abstract: A pneumatic tire including a tread portion provided with a foamed rubber layer made of a foamed rubber and an outer rubber layer made of a non-foamed rubber and arranged radially outwardly of the foamed rubber layer to contact roads. The radially thickness of the outer rubber layer is gradually increased from one end of the tread portion to the other end.
    Type: Grant
    Filed: May 27, 1993
    Date of Patent: July 4, 1995
    Assignee: Bridgestone Corporation
    Inventor: Toshiyuki Mitsutake
  • Automobile tire
    Patent number: D302960
    Type: Grant
    Filed: November 19, 1986
    Date of Patent: August 22, 1989
    Assignee: Bridgestone Corporation
    Inventors: Yasuo Himuro, Toshiyuki Mitsutake