Patents Assigned to Japan Industrial Land Development Co., Ltd.
  • Automatic tracking type measuring apparatus
    Patent number: 5098185
    Abstract: A reflector provided on a land is automatically collimated in such a way that it always comes to the center of the field of view of an automatic tracking type measuring apparatus provided on a platform. When the platform moves vertically or horizontally in this state, the reflector moves within the field of view. Then, a drive signal is supplied to a servo system to cause the reflector to come to the center of the field of view. Based on data measured by the apparatus, the platform is positioned.
    Type: Grant
    Filed: February 13, 1990
    Date of Patent: March 24, 1992
    Assignees: Japan Industrial Land Development Co., Ltd., Technical System Co., Ltd., Kittaka Engineering Laboratory Co., Ltd.
    Inventors: Kaname Watanabe, Kohji Kittaka