Patents by Inventor Tetuo Hirose

Tetuo Hirose 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 modifying an animal hair
    Patent number: 5215544
    Abstract: According to the present invention, an animal hair fiber can significantly be modified by fixing the supercontraction of the fiber which is a disadvantage in itself. The process for modifying the animal hair fiber according to the present invention comprises pretreating the animal hair fiber with a cleaving reagent for crosslinkage of the fiber and then treating the pretreated fiber with an supercontracting reagent. Furthermore, the process for preparing a bulky wool yarn according to the present invention comprises treating an mixed yarn with the supercontracting reagent, said mixed yarn consisting of the pretreated animal hair fiber with the cleaving reagent for crosslinkage of the fiber and a non-pretreated animal hair fiber.
    Type: Grant
    Filed: January 4, 1991
    Date of Patent: June 1, 1993
    Assignee: Kurashiki Boseki Kabushiki Kaisha
    Inventors: Tadashi Karakawa, Satoshi Konagaya, Tetuo Hirose, Takashi Kondo