Patents by Inventor Tamura Haruhisa

Tamura Haruhisa 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).

  • High frequency heating appliance having protection against rush currents
    Patent number: 4556773
    Abstract: A high frequency heating appliance has a monitor circuit for a door switch, wherein a current-limiting resistor and a fuse are provided in the monitor circuit for the door switch and serve as components of a bypass circuit for a relay. This arrangement prevents a large current from flowing when monitoring faults with the door switch and also prevents a rush current from flowing during normal operation.
    Type: Grant
    Filed: August 21, 1984
    Date of Patent: December 3, 1985
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Takada Yoshiyuki, Tamura Haruhisa