Patents by Inventor Eijiro Ishikawa

Eijiro Ishikawa 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).

  • Prosthetic knee joint
    Patent number: 6004351
    Abstract: A prosthetic knee joint enabling high-angle flexion includes the following members (a)-(c).
    Type: Grant
    Filed: September 15, 1997
    Date of Patent: December 21, 1999
    Assignee: Mizuho Ika Kogyo Kabushiki Kaisha
    Inventors: Naohide Tomita, Eijiro Ishikawa, Yoshiharu Asai