Patents by Inventor Tetsuya Matsuno

Tetsuya Matsuno 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).

  • Physiologically active substance
    Patent number: 5276177
    Abstract: A novel physiologically active substance is represented by the formula. ##STR1## The substance is preferably derived from propolis, has excellent antitumor activity and is useful as an antitumor drug.
    Type: Grant
    Filed: June 17, 1992
    Date of Patent: January 4, 1994
    Assignees: Tetsuya Matsuno, MPI Limited
    Inventors: Mayumi Yoshida, Yutaka Saito, Tetsuya Matsuno
  • 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