US Patent Issued to CANON on March 17 for "Linear motor, lens barrel including linear motor, and drive device including linear motor" (Japanese Inventor)

ALEXANDRIA, Va., March 17 -- United States Patent no. 12,578,625, issued on March 17, was assigned to CANON K.K. (Tokyo).

"Linear motor, lens barrel including linear motor, and drive device including linear motor" was invented by Kyosuke Sato (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A linear motor capable of improving power efficiency while preventing enlargement. A winding core direction of a coil coincide with a thrust direction of the linear motor. A center yoke is arranged inside the coil extending in the thrust direction. A magnet faces the center yoke outside the coil so that its magnetization direction is perpendicular to the thrust direction. A back yoke adjoins the main magnet...