Patents by Inventor Youichi Miyagawa

Youichi Miyagawa 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).

  • Crystal oscillator circuit having rapid starting characteristics and a low power consumption
    Patent number: 4307354
    Abstract: An improved oscillator circuit utilizes an inverter which includes a pair of series connected MOS-FETs of differing conductivity types. A switching circuit is operable to supply the gate bias voltages from one of two separate sources, one of which is used during periods of start-up or unstable oscillation to decrease start-up time, and the other of which is used during periods of stable oscillation to decrease current consumption.
    Type: Grant
    Filed: August 21, 1979
    Date of Patent: December 22, 1981
    Assignee: Nippon Electric Co., Ltd.
    Inventors: Youichi Miyagawa, Hiroshi Iguchi, Jiroh Shimada