ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,448,757, issued on Oct. 21, was assigned to KOMATSU LTD. (Tokyo).

"Construction method and construction system" was invented by Yoshiyuki Onishi (Tokyo), Mitsuhiro Aoki (Tokyo), Masahiro Kurihara (Tokyo), Kenjiro Shimada (Tokyo) and Toyohito Uchizono (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "In a construction method using an excavator that is controlled by manual operation, and an excavator that includes an automatic working-equipment control unit automatically controlling second working equipment on the basis of at least one of a current terrain and a designed terrain of a construction range in a construction site, and a tooth-edge position...