ALEXANDRIA, Va., June 25 -- United States Patent no. 12,341,379, issued on June 24, was assigned to TOYOTA JIDOSHA K.K. (Toyota, Japan).

"Rotor" was invented by Ken Jozaki (Seto, Japan) and Toshinori Okochi (Toyota, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A rotor includes a rotor core formed by stacking electromagnetic steel sheets having anisotropy, which means that magnetic characteristics of the electromagnetic steel sheets in a first direction along a rolling direction are different from magnetic characteristics of the electromagnetic steel sheets in a second direction obtained by rotating the first direction by 90deg, the rotor core having 4n magnetic pole portions formed along a circumfere...