Patents by Inventor Makoto Hirabayashi

Makoto Hirabayashi 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).

  • Control circuit for signal transmission
    Patent number: 4157557
    Abstract: A control circuit for signal transmission which comprises a plurality of field effect transistors (which will be hereinafter referred to as simply FETs) with gates of high resistance is disclosed. In this case, the sources and drains of the FETs are connected commonly and connected in parallel to a signal transmission path, their gates are supplied with different voltages, and the mutual conductances among the FETs are selected to be reduced gradually.
    Type: Grant
    Filed: December 6, 1977
    Date of Patent: June 5, 1979
    Assignee: Sony Corporation
    Inventors: Shuichi Sato, Makoto Hirabayashi, Yoshimi Hirata, Takaaki Yamada