Patents by Inventor Kazumi Tsukahara

Kazumi Tsukahara 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).

  • Safety pneumatic tire with tire maximum width to rim width ratio from 1.0 to 1.3
    Patent number: 4261405
    Abstract: A safety pneumatic tire which can improve running distance under punctured condition comprising an annular resilient reinforcing body having a maximum thickness corresponding to 4 to 9% of the tire maximum width and a JIS hardness of at least 60.degree. in which a ratio of the tire maximum width TW to the rim width RW is 1.0.ltoreq.TW/RW.ltoreq.1.3.
    Type: Grant
    Filed: October 17, 1979
    Date of Patent: April 14, 1981
    Assignee: Bridgestone Tire Co., Ltd.
    Inventors: Makoto Yamauchi, Norio Goshima, Kazumi Tsukahara