Patents Assigned to Taiheiyo Engineering
  • Mining apparatus
    Patent number: 4279443
    Abstract: The present invention is directed to a mining apparatus including a device comprising at least one pair of projectors for determining position of the apparatus in a mine by the intersection of paths from the projectors.
    Type: Grant
    Filed: October 11, 1979
    Date of Patent: July 21, 1981
    Assignee: Taiheiyo Engineering
    Inventors: Ken Takahashi, Tsunetoshi Ito