Patents by Inventor Satoshi Baba

Satoshi Baba 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).

  • Fail-safe control circuit
    Patent number: 4745542
    Abstract: A fail-safe control circuit which requires that all control units produce control signals to operate a controlled device. The control units receive a feedback signal used for comparing with the control signal. When the control signal and the feedback signal do not match, a power supply interruption or disagreement signal causes a relay to disconnect power to the controlled device placing the controlled device in a fail-safe state.
    Type: Grant
    Filed: November 12, 1985
    Date of Patent: May 17, 1988
    Assignee: 501 Nec Home Electronics
    Inventors: Satoshi Baba, Tadashi Nose, Tetsuji Muto, Yuji Fujimura