Patents by Inventor Namio Katoh

Namio Katoh 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).

  • Waterproof electrode device for a living body
    Patent number: 4947846
    Abstract: The present invention is characterized by a construction wherein a magnet is provided either to the connector or the ECG electrode, and a magnetic material or a magnet to the other, and both are stuck by magnetic attraction. Subsequently, a water penetration prevention sealing material, comprising a closed-cell type foam material, is interposed between the electrode case and the connector. Due to this construction, electric signals do not leak into the water and the connector is not pressed against the electrode.
    Type: Grant
    Filed: February 6, 1989
    Date of Patent: August 14, 1990
    Assignee: TDK Corporation
    Inventors: Toshiyuki Kitagawa, Namio Katoh