Patents by Inventor Yoshitugu Morioka

Yoshitugu Morioka 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).

  • Dual computer system
    Patent number: 5434998
    Abstract: A dual computer system comprising a pair of processor units, and a dual control unit for controlling which of the two processor units are to be kept operating or on standby in case of failure of the operated unit; wherein the dual control unit controls which processor unit is to be operated through monitoring of the operating states of the two processor units, and comprising two independent interruption devices for indicating the switching of the two processor units through interruption. The system is effective in improving the continuity of the control at the time of switching.
    Type: Grant
    Filed: March 16, 1993
    Date of Patent: July 18, 1995
    Assignee: Yokogawa Electric Corporation
    Inventors: Hajime Akai, Isao Domoto, Eiji Nakamoto, Yoshitugu Morioka, Shunsuke Hayashi