Patents by Inventor Toshiharu Adachi

Toshiharu Adachi 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).

  • Electrical discharge power supply circuit
    Patent number: 5329088
    Abstract: An electrical discharge machining power supply circuit for machining a workpiece, including: a power supply circuit; a first circuit including a first switching device and a first rectifying device; a second circuit including a second switching device and a second rectifying device; an electrical discharge machining electrode for providing an electrical discharge to the workpiece; and a first circuit device for preventing an excessive current generated by wiring inductance in the circuit from damaging at least the first switching device.
    Type: Grant
    Filed: July 7, 1992
    Date of Patent: July 12, 1994
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Toshiyuki Kaitani, Toshiharu Adachi