ALEXANDRIA, Va., July 3 -- United States Patent no. 12,345,159, issued on July 1, was assigned to KOMATSU LTD. (Tokyo).

"Measurement system and measurement method" was invented by Yuichi Kodama (Tokyo), Shinichi Terada (Tokyo), Eiichi Morioka (Tokyo) and Takashi Nagayoshi (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A measurement system 50 measures a grade of an excavated material generated from an underground tunnel including a plurality of mining points. The underground tunnel is constructed based on a mining plan of a mine planned based on primary grade data and primary position data corresponding to the primary grade data measured in a preliminary geological survey. The measurement system includ...