Patents by Inventor Masahiro Fukuma

Masahiro Fukuma 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).

  • Glass material for preparing living tissue replacement
    Patent number: 6306785
    Abstract: A living tissue replacement of crystallized glass having bioaffinity and mechanical strength is briefly obtained simply by pressure molding or machining without using a special equipment. A glass material having a softening point below its crystallization temperature and exhibiting viscous flow at temperatures below its melting point is heated at a temperature above its Tg and pressed at the temperature to mold to a desired shape, thereby manufacturing a living tissue replacement such as a dental crown. Molding can be done under a pressure of up to 20 MPa.
    Type: Grant
    Filed: March 10, 1999
    Date of Patent: October 23, 2001
    Assignee: TDK Corporation
    Inventors: Toru Nonami, Tatsuji Sano, Sadami Tsutsumi, Tetsuo Urabe, Masahiro Fukuma
  • Method for preparing a molded glass material for use in the manufacture of living tissue replacement
    Patent number: 5948129
    Abstract: A living tissue replacement of crystallized glass having bioaffinity and mechanical strength is briefly obtained simply by pressure molding or machining without using a special equipment. A glass material having a softening point below its crystallization temperature and exhibiting viscous flow at temperatures below its melting point is heated at a temperature above its Tg and pressed at the temperature to mold to a desired shape, thereby manufacturing a living tissue replacement such as a dental crown. Molding can be done under a pressure of up to 20 MPa.
    Type: Grant
    Filed: October 24, 1996
    Date of Patent: September 7, 1999
    Assignee: TDK Corporation
    Inventors: Toru Nonami, Tatsuji Sano, Sadami Tsutsumi, Tetsuo Urabe, Masahiro Fukuma