Patents by Inventor Toshiki Hiroyoshi

Toshiki Hiroyoshi 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).

  • Cardiovascular prosthesis
    Patent number: 4678468
    Abstract: In a cardiovascular prosthesis, at least a part of blood contact surface of the prosthesis is formed by polymer composition comprising water soluble polymer such as heparin and crosslinked polysiloxane, at least a part of the water soluble polymer being entangled or intertwisted into polysiloxane networks.
    Type: Grant
    Filed: August 5, 1985
    Date of Patent: July 7, 1987
    Assignee: Bio-Medical Co., Ltd.
    Inventor: Toshiki Hiroyoshi