Patents by Inventor Zenwemon Kitazawa

Zenwemon Kitazawa 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).

  • Fibrous heating element
    Patent number: 4983814
    Abstract: A fibrous heating element having an electrical resistance of 1 to 100 .OMEGA./m is prepared by coating a core fiber, preferably a yarn, with one or more electroconductive layers consisting of a polyurethane resin having carbon particles dispersed therein. The fibrous element is pliable and can be knit or woven into a fabric, and is particularly suitable for use in an electric heating blanket or in an industrial heating element.
    Type: Grant
    Filed: May 9, 1989
    Date of Patent: January 8, 1991
    Assignee: Toray Industries, Inc.
    Inventors: Katsunori Ohgushi, Masao Hijiri, Zenwemon Kitazawa