Patents by Inventor Seishi Matsuno

Seishi Matsuno 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).

  • Oximeter probe
    Patent number: 5520177
    Abstract: An oximeter probe to be wound on a fingertip of an object and used to measure the oxygen saturation of blood is completely shielded from electrical noises. The front face of an a flexible printed circuit board on which an a light-emitting device and a photodetective are mounted is covered by a conductive sheet having windows at the locations which correspond to the LED and the photodetector. The back face of the circuit board is covered by shield copper foil.
    Type: Grant
    Filed: March 25, 1994
    Date of Patent: May 28, 1996
    Assignee: Nihon Kohden Corporation
    Inventors: Keikitsu Ogawa, Hideo Ozawa, Seishi Matsuno