ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,537,401, issued on Jan. 27, was assigned to MARELLI EUROPE S.P.A. (Corbetta, Italy).

"Electric machine rotor and related electric machine" was invented by Stefano Del Greco (Corbetta, Italy).

According to the abstract* released by the U.S. Patent & Trademark Office: "A rotor of an electric machine comprising a drive shaft, a plurality of foils provided with an insertion seat at which they are coaxially keyed to the drive shaft at a keying portion. The foils have the shape of a circular sector extending from an outer edge, corresponding to an outer diameter of the rotor, and an inner edge, corresponding to a minimum or inner diameter delimiting the insertion seat which interfaces with...