Patents by Inventor Hiroshi Yagasaki

Hiroshi Yagasaki 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).

  • Bone substitute product and method of producing the same
    Patent number: 6214048
    Abstract: A bone substitute material is prepared by firing and pulverizing animal bones into animal bone powder, mixing the animal bone powder and a divalent metal compound into a powdery mixture, and kneading the powdery mixture with chitosan sol. Alternatively, a bone substitute sheet is prepared by mixing at least one of apatite and animal bone powder with chitosan sol into a mixture, forming a pre-processed sheet of the mixture, and neutralizing the sheet by an aqueous solution of a compound. The bone substitute material and sheet have a pH value falling within a neutral range.
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: April 10, 2001
    Assignee: Matsumoto Dental College
    Inventors: Michio Ito, Hiroshi Yagasaki