ALEXANDRIA, Va., June 12 -- United States Patent no. 12,296,873, issued on May 13, was assigned to MITSUBISHI HEAVY INDUSTRIES LTD. (Tokyo).

"Position detection system, vehicle, and position detection method" was invented by Kazutaka Shimizu (Yokohama, Japan), Keisuke Kimura (Yokohama, Japan) and Eigo Hayashi (Yokohama, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "This position detection system is provided with: a distance measuring sensor that is attached to a vehicle traveling along a track and is capable of measuring a distance over a predetermined range in the track width direction; an edge position detecting unit that detects an edge position in the track width direction of the track on the basi...