ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,451,785, issued on Oct. 21, was assigned to AAC Microtech (Changzhou) Co. Ltd. (Changzhou, China).
"Vibration motor" was invented by Bo Xiao (Changzhou, China), Ronglin Linghu (Changzhou, China), Wei Song (Changzhou, China) and Lubin Mao (Changzhou, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a vibration motor, including a base, an electromagnetic drive unit, a vibration unit, and a vibration feedback control unit. The electromagnetic drive unit includes a magnet-conducting plate and an elastic assembly. The vibration feedback control unit includes a flexible circuit board, a pressure-sensitive block, and an elastic support member. ...