ALEXANDRIA, Va., March 12 -- United States Patent no. 12,249,933, issued on March 11, was assigned to ORIENTAL MOTOR Co. LTD. (Tokyo).
"Motor control device" was invented by Akihiko Houda (Tsukuba, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A motor control device controls an AC motor by sensorless control. The motor control device includes: an inverter; a multilayer printed circuit board including an inner layer having a wiring pattern provided in a current line connecting the inverter to a winding of the AC motor; a plurality of chip inductors mounted on a major surface of the multilayer printed circuit board in opposed relation to the wiring pattern, and connected in series to form a series circu...