ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,503,161, issued on Dec. 23, was assigned to KOMATSU LTD. (Tokyo).
"Crawler-type work machine" was invented by Takeshi Yoshikawa (Tokyo), Hiroaki Takeshima (Tokyo), Naoya Akiyama (Tokyo), Toshikazu Okada (Tokyo), Kazushi Nakata (Tokyo) and Osamu Yatsuda (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A controller of a crawler type work machine controls left and right steering clutches, left and right steering brakes, and a turning motor to cause the crawler type work machine to turn in either a slow turning mode or a pivot turning mode. The controller executes a hydraulic fluid amount control to reduce a hydraulic fluid amount supplied from a hydra...