ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,385,216, issued on Aug. 12, was assigned to Yanmar Holdings Co. Ltd. (Osaka, Japan).
"Electric working machine" was invented by Satoshi Kitahara (Fukuoka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A hydraulic excavator as an electric working machine includes: a lower traveling body; an upper turning body that is positioned above the lower traveling body and provided to be turnable with respect to the lower traveling body; an electric motor that is arranged in the upper turning body; and a battery unit that is arranged in the upper turning body and stores electric power for driving the electric motor. The upper turning body includes a turning ...