Patents Assigned to Tokyo Institute of Technology, Reasearch Laboratory of Precision Machinery and Electronics
  • Non-destructive inspection method
    Patent number: 4979394
    Abstract: The coherence between inputted and received white noise is used to determined the presence or absence of flaws in a structure such as a joint. The strength of the joint is determined by integrating the coherence factor and observing the magnitude of the same.
    Type: Grant
    Filed: August 15, 1988
    Date of Patent: December 25, 1990
    Assignees: Nissan Motor Co., Ltd., Tokyo Institute of Technology, Reasearch Laboratory of Precision Machinery and Electronics
    Inventors: Yakichi Higo, Shigetomo Nunomura, Toshio Takano, Junichiro Matsuoka, Tadashi Ashida