Patents by Inventor Hajime Sawazaki

Hajime Sawazaki 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).

  • Semiconductor integrated circuit device
    Patent number: 4189738
    Abstract: There is provided a semiconductor integrated circuit device having a Class B push-pull circuit including a first transistor of which the base is connected with a signal source and the collector to a positive power source, and a second transistor of which the collector is connected with the emitter of the first transistor, the base to the signal source, and the emitter to ground. The first transistor has a large area of safe operation compared with the second transistor.
    Type: Grant
    Filed: September 28, 1978
    Date of Patent: February 19, 1980
    Assignee: Tokyo Shibaura Electric Co., Ltd.
    Inventor: Hajime Sawazaki