ALEXANDRIA, Va., June 16 -- United States Patent no. 12,308,728, issued on May 20, was assigned to MAKITA Corp. (Anjo, Japan).
"Electric work machine" was invented by Fuminari Fujii (Anjo, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An electric work machine is driven appropriately. An electric work machine includes a motor including a stator, a rotor rotatable relative to the stator, and a rotor shaft fixed to the rotor, an output unit drivable by the rotor shaft, a plurality of heat-radiating fins, a motor case having an outer surface receiving the plurality of heat-radiating fins and accommodating the stator and the rotor, a cooling fan located outside the motor case and rotatable by the rotor sha...