ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,428,812, issued on Sept. 30, was assigned to HITACHI CONSTRUCTION MACHINERY Co. LTD. (Tokyo).
"Work machine" was invented by Shinji Nishikawa (Kasumigaura, Japan), Hiroaki Tanaka (Kasumigaura, Japan), Masatoshi Morikawa (Ushiku, Japan) and Akihiro Narazaki (Tsukuba, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A work machine includes a work implement provided to a machine body, a posture sensor that senses posture information regarding the work implement, a controller configured to compute a specific position of the work implement on the basis of the posture information, set a limited area that the work implement is prohibited from entering, co...