Patents Assigned to Shin-Ichiro Matsuda
  • Method of and apparatus for determining an electric wiring state
    Patent number: 5760591
    Abstract: A method of and an apparatus for determining an electric wiring state, having the steps of: feeding at least one pulse voltage signal into one of two lines short-circuited at their two source portions; detecting the pulse voltage signal at two end portions corresponding to the two source portions; and discriminating wiring state between the two source portions and the corresponding two end portions upon a comparison of polarities between the fed pulse voltage signal and the detected signal.
    Type: Grant
    Filed: June 18, 1993
    Date of Patent: June 2, 1998
    Assignee: Shin-Ichiro Matsuda
    Inventors: Shin-ichiro Matsuda, Tomoatsu Ino