Patents by Inventor Kazufumi Egawa

Kazufumi Egawa 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).

  • Fibrous bone filler and process of producing the same
    Patent number: 4904257
    Abstract: A fibrous bone filler having an excellent biocompatibility. The bone filler comprises fibers containing hydroxyl apatite. The hydroxyl apatite is "intact", that is, the hydroxyl apatite substantially retains its hydroxyl groups.
    Type: Grant
    Filed: July 6, 1988
    Date of Patent: February 27, 1990
    Assignees: Toa Nenryo Kogyo K. K., Asahi Kogaku Kogyo Kabushiki Kaisha
    Inventors: Shoichi Mori, Shigeo Fujii, Masao Yoshizawa, Kenji Miyasaka, Jyoichi Tabuchi, Kazufumi Egawa, Minoru Hirano, Yoshikazu Yoshida