ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,529,207, issued on Jan. 20, was assigned to Yanmar Holdings Co. Ltd. (Osaka, Japan).
"Electric work 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 work machine includes a plurality of electric devices, a first heat exchanger that cools a refrigerant passing through at least one of the plurality of electric devices, a hydraulic pump that is driven by any one of the plurality of electric devices and discharges hydraulic oil, a second heat exchanger that cools the hydraulic oil, and a fan that takes outside air into an interior of a machine body. The first heat e...