Patents by Inventor Kiyohiro Shibata

Kiyohiro Shibata 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 a silk fibroin modified woolen fiber and a modified woolen fiber
    Patent number: 5984974
    Abstract: To provide gloss to a woolen fiber by adhering silk fibroin to the woolen fiber firmly and uniformly, a woven woolen fiber subjected to anionic processing is infiltrated with a silk fibroin solution, a cationic polymer resin is dissolved in the solution, and the cationic polymer resin is ion bonded to the woolen fiber to fix silk fibroin fine particles to the woolen fiber.
    Type: Grant
    Filed: February 4, 1999
    Date of Patent: November 16, 1999
    Assignees: Toa Wool Spinning & Weaving Co., Ltd., Toru Itoi
    Inventors: Kiyohiro Shibata, Toru Itoi