Patents by Inventor Kiyoshi Takahisa

Kiyoshi Takahisa 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).

  • Method and device for monitoring superconducting system
    Patent number: 4140021
    Abstract: The explosion or destruction of a superconducting system which may occur when an abnormal state arises in any part of the system if allowed to develop into a catastrophic quenching is prevented by providing the system with an acoustic wave detecting device adapted to detect the acoustic waves emitted upon occurrence of the abnormal state, analyze the acoustic waves detected in the form of signals to determine the extent of the abnormal state, foretell stepwise the approach of catastrophic quenching and, on the basis of the data thus obtained, effect proper feedback to the system.
    Type: Grant
    Filed: October 11, 1977
    Date of Patent: February 20, 1979
    Assignees: Agency of Industrial Science & Technology, Ministry of International Trade & Industry
    Inventors: Harehiko Nomura, Kiyoshi Takahisa