Patents by Inventor Kazutomo Ishizawa

Kazutomo Ishizawa 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 finishing textured knitted fabrics
    Patent number: 3991449
    Abstract: A knitted fabric possessing a porosity of at most 80% and a surface contour of at most 6, therefore having a woven fabriclike appearance and hand, is manufactured by uniformly pressing a primary knitted fabric containing at least 50% by weight of thermoplastic synthetic fiber with a presser face under 5 to 35 kg/cm.sup.2 pressure at a temperature lower than the melting point of the synthetic fiber but not lower than 90.degree. C so as to compress and heat-set the primary fabric in a thickness of 95 to 55% based on that of the starting primary fabric.
    Type: Grant
    Filed: June 9, 1971
    Date of Patent: November 16, 1976
    Assignee: Kanegafuchi Boseki Kabushiki Kaisha
    Inventors: Kazutomo Ishizawa, Yoshio Sawa