ALEXANDRIA, Va., June 19 -- United States Patent no. 12,331,483, issued on June 17, was assigned to Hitachi Construction Machinery Co. Ltd. (Tokyo).
"Work machine control system" was invented by Ryu Narikawa (Tokyo), Hidekazu Moriki (Tokyo), Shinya Imura (Ibaraki, Japan) and Shinjirou Yamamoto (Ibaraki, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A work machine control system includes: a monitoring apparatus that detects a position and an action of a person in a monitored area set around a hydraulic excavator; and a controller that generates a control signal for limiting an action of the hydraulic excavator on the basis of a positional relation between the hydraulic excavator and a detected person d...