Patents by Inventor Shin-ich Kitazawa

Shin-ich 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).

  • Process for producing high bulky yarn by false-twisting system
    Patent number: 3949544
    Abstract: A fibrous strand including at least some short fibers and composed of two or more kinds of fibers of different melting point temperatures is, concurrently with false twisting, and in a vibrating condition, heated by a heater of the non-contact type at temperatures between the highest and lowest melting point temperatures of the component fibers so as to produce spun-like yarns of a substantially twistless configuration containing uniformly scattered points of inter-fiber binding and fibers crimped in the form of a coil.
    Type: Grant
    Filed: October 15, 1974
    Date of Patent: April 13, 1976
    Assignee: Toray Industries, Inc.
    Inventors: Shin-ich Kitazawa, Takao Negishi, Kozo Susami