Patents by Inventor Itsuo Minakata

Itsuo Minakata 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).

  • Twisted yarn
    Patent number: 4524577
    Abstract: The twisted yarn is prepared by twisting (1) a single yarn comprising a water-insoluble fiber having a degree of water swelling of at least 10 cc/g or (2) a plurality of single yarns comprising a water-insoluble fiber having a degree of water swelling of at least 10 cc/g or a plurality of yarns comprising at least 50% by weight of such single yarns and water-nonswellable yarns so that the twist constant is at least 2.5.
    Type: Grant
    Filed: December 10, 1982
    Date of Patent: June 25, 1985
    Assignee: Kao Corporation
    Inventors: Osamu Ito, Harumasa Yamasaki, Itsuo Minakata, Kazunori Nishizawa