Patents by Inventor Shigeo Yasugi

Shigeo Yasugi 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).

  • Tissue-affinitive collagen for osteogenesis and method of producing the same
    Patent number: 4975527
    Abstract: A good tissue-affinity and lack of antigenicity are required for the collagen used as the carrier of BMP. Conventional collagens have these properties only insufficiently. When the tyrosine content is below 2 residues/1000 residues, then the above properties of such collagens are good. Moreover, collagens excelling in the above properties can be readily obtained by using proteolytic enzymes.
    Type: Grant
    Filed: June 28, 1989
    Date of Patent: December 4, 1990
    Assignee: Nitta Gelatin, Inc.
    Inventors: Masahiro Koezuka, Kunio Takaoka, Kaneo Suzuki, Shigeo Yasugi