Patents by Inventor Nobutaka Kiyohara

Nobutaka Kiyohara 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).

  • Reinforcement sheet
    Patent number: 5118569
    Abstract: The disclosed reinforcement sheet is a knitted fabric formed from a plurality of reinforcing yarns 5 and a plurality of matrix yarns 9, wherein the reinforcing yarns are held in the linear state without being bent, arranged in parallel to and spaced from one another in a matrix knitting structure, and the matrix yarns cover the linear reinforcing yarns, without bending the linear reinforcing yarns, to form the matrix knitting structure.
    Type: Grant
    Filed: April 25, 1990
    Date of Patent: June 2, 1992
    Assignees: Teijin Limited, Gunze Limited
    Inventors: Toshimasa Kuroda, Yoshimi Tanaka, Takashige Oka, Kouichi Yamada, Nobutaka Kiyohara, Akihiro Sato, Mitsuo Hosoi