Patents by Inventor Katsumi Yanai

Katsumi Yanai 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).

  • Automatic surveying equipment and three-dimensions measuring method
    Patent number: 6473166
    Abstract: The present invention relates to a non-prism type automatic surveying apparatus and a three-dimensions measuring method or the like, which measure a distance to an object to be measured without using a reflecting prism or the like. A lightwave range finder capable of performing non-prism measurements has an angle measuring unit and a distance measuring unit. Arithmetic processing means for recognition can recognize an object to be measured according to image processing. The angle measuring unit and the distance measuring unit can respectively measure distances to and angles relative to at least three specified points on a plane &agr; including measuring points of the object to be measured. The angle measuring unit can measure angles relative to each individual measuring points.
    Type: Grant
    Filed: January 28, 2000
    Date of Patent: October 29, 2002
    Assignee: Kabushiki Kaisha Topcon
    Inventors: Masahiro Ohishi, Katsumi Yanai