Patents by Inventor Susumu Sugou

Susumu Sugou 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).

  • Stored program control type electronic exchange system
    Patent number: 4009337
    Abstract: A small scale electronic telephone exchange system of stored program control type having a plurality of trunks and a central computer has been disclosed. The trunks function to process the real time operation and, therefore, the central computer does not need to operate on a real time basis. The central computer always scans the condition of the trunks and the subscriber's telephone terminals and, upon detecting the change of said condition, it analyzes said change and performs the necessary process for said change. The present exchange system provides many new services but the cost of the system is reasonable.
    Type: Grant
    Filed: October 10, 1974
    Date of Patent: February 22, 1977
    Assignee: Oki Electric Industry Company, Ltd.
    Inventors: Shigeo Sakai, Akira Ogishima, Akira Imada, Tetsuya Matsuno, Kazuo Suzuki, Susumu Sugou