Patents by Inventor Eisaburo Imamura

Eisaburo Imamura 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).

  • Bioprosthetic valve
    Patent number: 5080670
    Abstract: A bioprosthetic valve made from a biological tissue containing collagen which has been cross-linked with a polyepoxy compound is disclosed. The valve has excellent biocompatibility and is durable and is free from calcification.
    Type: Grant
    Filed: August 30, 1988
    Date of Patent: January 14, 1992
    Assignee: Koken Co., Ltd.
    Inventors: Eisaburo Imamura, Yasuharu Noishiki, Hitoshi Koyanagi, Teruo Miyata, Masayasu Furuse