ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,390,868, issued on Aug. 19, was assigned to MAKITA Corp. (Anjo, Japan).
"Electric working machine" was invented by Takuya Sumi (Anjo, Japan), Sho Tsuda (Anjo, Japan) and Koki Taniguchi (Anjo, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An electric working machine may include an output shaft, a rotary blade attached to the output shaft, an output pulley fixed to the output shaft, an input shaft, an input pulley fixed to the input shaft, a transmission belt wrapped around the input pulley and the output pulley, an electric motor including a motor shaft and configured to rotate the motor shaft, a speed reducer configured to reduce a speed of rotat...