Patents by Inventor Tomio Katoh

Tomio 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).

  • Thermal reed switch assembly
    Patent number: 4703296
    Abstract: A thermal reed switch assembly including two magnetic reed switches having two permanent magnets and at least two semicylindrical thermal magnetic members each having mutually different magnetic tansition points sandwiching the reed switch therebetween. An inner diameter of one thermal magnetic member may be larger than at least a second member therein increasing the sectional area ratio of the members.
    Type: Grant
    Filed: February 6, 1986
    Date of Patent: October 27, 1987
    Assignee: TDK Corporation
    Inventor: Tomio Katoh