Patents by Inventor Tetsuji Kawauzra

Tetsuji Kawauzra 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
    Patent number: 5679744
    Abstract: A rubber composition suitable for use, for example, a tire and a belt containing a natural and/or polyisoprene rubber, and/or styrene-butadiene copolymer rubber, polybutadiene rubber, and/or an A-B type block copolymer of styrene and butadiene and optionally, a softening agent, a foaming agent, a foaming assistant.
    Type: Grant
    Filed: November 9, 1995
    Date of Patent: October 21, 1997
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Tetsuji Kawauzra, Sadafumi Aibe, Masayuki Kawazoe