Patents by Inventor Tomoyoshi Matsuba

Tomoyoshi Matsuba 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).

  • Sensor for intra-corporeal medical device and a method of manufacture
    Patent number: 6221023
    Abstract: A sensor mounted on the distal end of an intra-corporeal catheter detects pressure applied thereto. The sensor includes a chip that is deformable in accordance with pressure applied thereto, strain gauges mounted on the chip, a sensing plate, a projection, a cap and a tube. A cover covers the chip, the sensing plate, the projection and the cap and gives a smooth tapered shape to the catheter's distal end. The projection and the cap transmit pressure applied to the catheter's distal end to the sensing plate and tilt the sensing plate in accordance with the pressure. The strain gauges issue detection signals according to the degree and the direction of the tilting. The pressure applied to the catheter's distal end is detected based on the issued signals.
    Type: Grant
    Filed: December 2, 1996
    Date of Patent: April 24, 2001
    Assignee: Kabushiki Kaisha Tokai Rika Denki Seisakusho
    Inventors: Tomoyoshi Matsuba, Hitoshi Iwata