Patents by Inventor Masahisa Tokumoto

Masahisa Tokumoto 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).

  • Structure for uniform heating in a heating device
    Patent number: 6040562
    Abstract: There is provided a uniform heating structure in the heating device formed in the shape of a hollow block made of a heat-resistant metal, in which the surface of the heating device is used as a heat transfer surface, and a high thermal-conductivity material with a thermal conductivity higher than the thermal conductivity of the metal is located adjacent to the heat transfer surface in such a manner that heat can be transferred to the heat transfer surface.
    Type: Grant
    Filed: December 15, 1997
    Date of Patent: March 21, 2000
    Assignee: Kabushiki Kaisha Kyushu Nissho
    Inventors: Masahisa Tokumoto, Eiji Ishibashi