Patents by Inventor Ryozo Kontani

Ryozo Kontani 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).

  • Constant-voltage circuit
    Patent number: 3942128
    Abstract: A constant-voltage circuit includes a transistor, a resistance connected on the input side of the transistor, a compensating diode connected on the output side of the transistor, and a non-linear bias portion connected in series with the resistance, whereby fluctuations in the base-emitter voltage of the transistor are compensated for by the compensating diode.
    Type: Grant
    Filed: October 4, 1973
    Date of Patent: March 2, 1976
    Assignee: Hitachi, Ltd.
    Inventors: Kunio Seki, Ryozo Kontani