Patents by Inventor Tamio Obara

Tamio Obara 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 reinforcing steel cord
    Patent number: 5609014
    Abstract: The steel cord has the 1.times.9 structure, in which three core wires and six thicker outer wires are twisted in the same direction with the same pitch, and has a flat shape in the section which is taken perpendicularly to the longitudinal section thereof. The six outer wires having at least two gaps between adjacent ones and the core wires have at least one gap between adjacent ones.
    Type: Grant
    Filed: January 2, 1996
    Date of Patent: March 11, 1997
    Assignee: Tokyo Rope Manufacturing Co., Ltd.
    Inventors: Tamio Obara, Kazuo Matsumaru