Patents by Inventor Osamu Minato

Osamu Minato 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).

  • Protective circuit and device for metal-oxide-semiconductor field effect transistor and method for fabricating the device
    Patent number: 4086642
    Abstract: A protective circuit comprises a metal-oxide-semiconductor field effect transistor (MOSFET) to be protected, and a depletion-type MOSFET the gate and source of which are connected to each other and the souce of which is connected to the gate of the MOSFET to be protected, whereby the protective circuit which is suitable for a high-speed operation is completed.
    Type: Grant
    Filed: January 13, 1976
    Date of Patent: April 25, 1978
    Assignee: Hitachi, Ltd.
    Inventors: Isao Yoshida, Ryoichi Hori, Hiroo Masuda, Osamu Minato, Jun Etoh, Masaaki Nakai