ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,463,497, issued on Nov. 4, was assigned to MEIDENSHA Corp. (Tokyo).

"Rotating electrical machine" was invented by Tadahiro Matsumoto (Tokyo) and Mototsugu Omura (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A housing of a rotating electrical machine accommodates a stator and a rotor, and forms a first space communicating with a gap on a one end-side of the stator and a second space communicating with the gap on another end-side of the stator. The stator has an intermediate duct communicating with the gap. The housing has a one end-side intake port; a one end-side exhaust port; an another end-side intake port; an another end-side exhaust port; and...