Patents by Inventor Shin-ichi Kitazawa

Shin-ichi 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).

  • Spun yarn and process for manufacturing the same
    Patent number: 4121412
    Abstract: This invention relates to a novel spun yarn composed of staple fibers only and having the average number of fibers in cross section and the rate of yarn evenness being within a limited range, and a process for manufacturing the same directly from continuous multi-filament yarn.
    Type: Grant
    Filed: May 10, 1977
    Date of Patent: October 24, 1978
    Assignee: Toray Industries, Inc.
    Inventors: Teiryo Kojima, Shin-ichi Kitazawa
  • Spun yarn and process for manufacturing the same
    Patent number: 4062177
    Abstract: This invention relates to a novel spun yarn composed of staple fibers only and having the average number of fibers in cross section and the rate of yarn evenness being within a limited range, and a process for manufacturing the same directly from continuous multi-filament yarn.
    Type: Grant
    Filed: June 16, 1976
    Date of Patent: December 13, 1977
    Assignee: Toray Industries, Inc.
    Inventors: Teiryo Kojima, Shin-ichi Kitazawa
  • Spun type yarn and process for manufacturing the same
    Patent number: 4004406
    Abstract: A spun-type yarn having a unique configuration and useful properties is manufactured by a novel process which comprises forming a ribbon-shaped fiber bundle being substantially free from twists and composed of randomly oriented continuous filaments, each of which comprises random bends and loops along its length, and then false twisting the ribbon-shaped bundle to consolidate it into a yarn. In the false-twisting, some of the filaments are broken.
    Type: Grant
    Filed: April 16, 1975
    Date of Patent: January 25, 1977
    Assignee: Toray Industries, Inc.
    Inventors: Hirotsugu Suzuki, Yo Ogawa, Yoshikazu Kikuchi, Shin-ichi Kitazawa