Patents by Inventor Katsuhiro Takagi

Katsuhiro Takagi 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).

  • Sawtooth wave oscillator circuit
    Patent number: 4035744
    Abstract: A sawtooth oscillator comprises a differential amplifier and first and second switching transistors driven into opposite conductivity states by the output of the differential amplifier. A charging capacitor is connected between the switching transistors and has one end connected in positive feedback fashion to one input of the differential amplifier.
    Type: Grant
    Filed: August 24, 1976
    Date of Patent: July 12, 1977
    Assignee: Nippon Electric Company, Ltd.
    Inventors: Firokazu Fukaya, Katsuhiro Takagi