ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,451,786, issued on Oct. 21, was assigned to AAC Microtech (Changzhou) Co. Ltd. (Changzhou, China).
"Linear vibration motor" was invented by Weibo Chen (Changzhou, China), Xiaorong Zhou (Changzhou, China), Ziyang Zhang (Changzhou, China) and Keyang Wang (Changzhou, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present application provides a linear vibration motor, including a casing, a stator and a vibrator accommodated in the casing, and an elastic member for suspending the vibrator in the casing. The vibrator includes a mass block having a through-hole, and a magnetic circuit system. The magnetic circuit system includes a first magnetic stee...