Patents by Inventor Yoshinobu Inuzuka

Yoshinobu Inuzuka 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).

  • Treatment agent for elastic polyurethane fibers and elastic polyurethane fibers treated therewith
    Patent number: 6652599
    Abstract: A treatment agent for elastic polyurethane fibers comprising a dispersion in which a higher fatty acid magnesium salt is colloidally dispersed in a silicone mixture consisting of a silicone oil with a viscosity of 5×10−6−50×10−6 m2/S at 25° C. as a dispersion medium and a dispersant mainly comprising a modified silicone at a ratio by weight of the dispersion medium/the dispersant=100/0.5-100/4.5, wherein the amount of the higher fatty acid magnesium salt is 1 to 10 parts by weight per 100 parts by weight of the silicone oil.
    Type: Grant
    Filed: August 15, 2000
    Date of Patent: November 25, 2003
    Assignees: Takemoto Oil & Fat Co., Ltd., Du Pont-Toray Co., Ltd.
    Inventors: Yoshinobu Inuzuka, Yasushi Miyamoto, Eiji Kawanishi, Noboru Watanabe
  • Treatment agent for elastic polyurethane fibers, and elastic polyurethane fibers treated therewith
    Patent number: 6171516
    Abstract: A treatment agent for elastic polyurethane fibers comprising a dispersion in which a higher fatty acid magnesium salt is colloidally dispersed in a silicone mixture consisting of a silicone oil with a viscosity of 5×10−6−50×10−6 m2/S at 25° C. as a dispersion medium and a dispersant mainly comprising a modified silicone at a ratio by weight of the dispersion medium/the dispersant=100/0.5−100/4.5, wherein the amount of the higher fatty acid magnesium salt is 1 to 10 parts by weight per 100 parts by weight of the silicone oil.
    Type: Grant
    Filed: November 6, 1998
    Date of Patent: January 9, 2001
    Assignees: Takemoto Oil & Fat Co., Ltd., Du Pont Toray Co., Ltd.
    Inventors: Yoshinobu Inuzuka, Yasushi Miyamoto, Eiji Kawanishi, Noboru Watanabe