Patents by Inventor Shoei Katoka

Shoei Katoka 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).

  • Sensing a magnetic field with a super conductive material that exhibits magneto resistive properties
    Patent number: 5011818
    Abstract: A superconductive magneto-resistive device is made up of superconductive materials having grain boundaries which act as weak couplings. The superconductive material will change from the superconductive state to the normal state when a magnetic field is applied to the material. The superconductive material can be used in various devices for measuring.
    Type: Grant
    Filed: July 29, 1988
    Date of Patent: April 30, 1991
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Shoei Katoka, Shuhei Tsuchimoto, Hideo Nojima, Ryusuke Kita, Masaya Nagata