Patents by Inventor Hideo Ibaragi

Hideo Ibaragi 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).

  • Bulky non-woven fabric of polybutylene terephthalate continuous filaments
    Patent number: 4429002
    Abstract: Non-woven fabric comprising polybutylene terephthalate continuous filaments having a three-dimensional crimp of unfixed shape provides remarkable resiliency, flexibility, and strength. A method of manufacturing such non-woven fabric forms a blended yarn of polybutylene terephthalate continuous filaments and highly shrinkable continuous filaments having a low melting point through direct coupling with high speed take-off means, and subjecting the resultant web to a relax heat set.
    Type: Grant
    Filed: January 24, 1983
    Date of Patent: January 31, 1984
    Assignee: Toray Industries, Inc.
    Inventors: Shunsuke Fukada, Kiyoshi Aihara, Hideo Ibaragi