Patents by Inventor Astuko Gotoh

Astuko Gotoh 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).

  • Method for preparing dispersion of collagen fiber
    Patent number: 4097234
    Abstract: A method for preparing an aqueous dispersion of collagen fibers from various materials containing insoluble collagen and various products prepared from the dispersion are disclosed.
    Type: Grant
    Filed: December 10, 1976
    Date of Patent: June 27, 1978
    Assignee: Nippi, Incorporated
    Inventors: Takeshi Sohde, Astuko Gotoh, Kuniharu Iwamoto, Yasushi Okamoto