Patents by Inventor Shoji Kusui

Shoji Kusui 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).

  • Electronic type polyphase electric energy meter
    Patent number: 4217545
    Abstract: In a polyphase electric energy meter, voltages of the phases of a polyphase alternating power to be measured are utilized to subject an input pulse signal to be applied to a pulse distributor to pulse width modulation to form polyphase control pulses, which cyclically operate switches provided respectively for the phases so that an operation circuit cyclically receives the voltages and currents of the phases and produces a current output proportional to the sum of the electric powers of the phases.
    Type: Grant
    Filed: June 20, 1975
    Date of Patent: August 12, 1980
    Assignee: Nihon Denki Keiki Kenteisho
    Inventors: Shoji Kusui, Nobuyasu Yamazaki, Yoshio Ikeda
  • Automatic energy supply systems of the multi-rate calculating type
    Patent number: 4162530
    Abstract: According to the supply system, a customer purchases a chip corresponding to a predetermined amount of electricity from a power company and sets the chip in a control device installed in the customer house.
    Type: Grant
    Filed: December 16, 1977
    Date of Patent: July 24, 1979
    Assignee: Nihon Vending Machine Co., Ltd.
    Inventors: Shoji Kusui, Kazuo Kitagawa