ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,703,956, issued on Aug. 11, was assigned to HITACHI CONSTRUCTION MACHINERY Co. LTD. (Tokyo).
"Work vehicle" was invented by Hiroaki Yada (Ryuugasaki, Japan), Hiroyuki Kizaki (Nagareyama, Japan) and Shoroku Kawahara (Ushiku, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "The work vehicle includes a frame, a lift arm having a base end section attached to the frame, a work tool attached to the distal end section of the lift arm, a base-end link device attached to the frame and the base end section side of the lift arm, a distal-end link device attached to the work tool and the distal end side of the lift arm, and a work tool cylinder extending from t...