Patents by Inventor Tadamasa Koyanagi

Tadamasa Koyanagi 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).

  • Thermoelectric element sheet in which thermoelectric semiconductors are mounted between films
    Patent number: 5430322
    Abstract: A thermoelectric element sheet includes at least two layered structures having a plurality of thermoelectric elements which are arranged between insulating films. In each layered structure the thermoelectric semiconductors are arranged in pairs and electrodes connect the thermoelectric semiconductors of each pair to provide a plurality of structural units. Further electrodes connect the structural units. The thermoelectric element sheet can be used in thermoelectric energy conversion systems which depend on the Seebeck, Peltier or Thomson effect to convert thermal energy to electrical energy or vice versa.
    Type: Grant
    Filed: November 21, 1994
    Date of Patent: July 4, 1995
    Assignee: Agency of Industrial Science and Technology
    Inventors: Tadamasa Koyanagi, Tsunehiro Oohira