Patents by Inventor Yuusaku Matsubara

Yuusaku Matsubara 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).

  • Drive circuit for a latching relay
    Patent number: 4433357
    Abstract: A drive circuit for a latching relay includes a flip-flop, a timer and a semiconductive switching circuit for the relay. First and second input signals are applied to the flip-flop and first and second control signals at the output of the flip-flop are applied alternately to the timer as a time limit output for controlling the energization of the switching circuit in concert with a high-speed changeover signal.
    Type: Grant
    Filed: October 7, 1981
    Date of Patent: February 21, 1984
    Assignee: Matsushita Electric Works Ltd.
    Inventors: Hiromi Nishimura, Yoshie Watari, Yuusaku Matsubara