ALEXANDRIA, Va., July 30 -- United States Patent no. 12,371,874, issued on July 29, was assigned to HITACHI CONSTRUCTION MACHINERY Co. LTD. (Tokyo).
"Work machine" was invented by Satoshi Nakamura (Tokyo), Kouji Shiwaku (Tsuchiura, Japan) and Shinya Imura (Tsuchiura, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A working status indicating a status related to the present work of a hydraulic excavator 1 is determined on the basis of operation signals output from a control lever 24, posture information output from inertial measuring devices 27 to 30, load information output from pressure sensors 32 and 33, and a work area set by a display input device 26, an operation form indicating contents of an oper...