Patents by Inventor Hiroyoshi Tanaka

Hiroyoshi Tanaka 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).

  • Antistatic acrylic fiber
    Patent number: 3963803
    Abstract: An acrylic fiber having excellent antistatic properties is obtained by mixing a polymer (A) consisting mainly of acrylonitrile with a copolymer (B) consisting mainly of a polyetherpolyester block copolymer consisting of a polyester and compound represented by the general formula (1): ##EQU1## (wherein each of m and n is O or a positive integer, wherein 25 .ltoreq. m + n .ltoreq. 1000, and m .gtoreq. 10).
    Type: Grant
    Filed: September 24, 1973
    Date of Patent: June 15, 1976
    Assignee: Toray Industries, Inc.
    Inventors: Hiroyoshi Tanaka, Haruo Obara, Teruo Koseki, Hajime Machida, Michihiko Tanaka, Shigeru Fujii