ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,473,105, issued on Nov. 18, was assigned to ARASE AIZAWA AEROSPATIALE LLC (Hamamatsu, Japan).

"Transmission device for unmanned aerial vehicle" was invented by Kunio Arase (Hamamatsu, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A transmission device for an unmanned aerial vehicle (UAV), wherein arms driving propellers are positionable to not interfere with an air cleaner and a radiator. A transmission device for a UAV in which arms are positioned on a machine body upper section and propellers are driven using a straight-four engine, the transmission device including a drive gear that is attached to a crankshaft; a clutch shaft drive gear that m...