US Patent Issued to NIDEC on July 15 for "Motor with an air-core coil and back yoke to reduce eddy current losses" (Japanese Inventors)

ALEXANDRIA, Va., July 16 -- United States Patent no. 12,362,609, issued on July 15, was assigned to NIDEC Corp. (Kyoto, Japan).

"Motor with an air-core coil and back yoke to reduce eddy current losses" was invented by Yu Tachibana (Kyoto, Japan), Yoichi Sekii (Kyoto, Japan) and Hiroaki Hirano (Kyoto, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A motor includes a rotor including a shaft centered on a central axis extending vertically, a bearing that supports the shaft, an air-core coil that is radially outward of the rotor and extends in an axial direction, and a back yoke that includes an axially extending shape with a linear portion having a coil shape, and includes an inner peripheral surface to w...