ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,556,077, issued on Feb. 17, was assigned to AAC Microtech (Changzhou) Co. Ltd. (Changzhou, China).

"Linear vibration motor with elastic member having elastic arms and bending portions" was invented by Weibo Chen (Changzhou, China) and Xiaorong Zhou (Changzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A linear vibration motor includes a housing, a vibration assembly, and a stator assembly. The vibration assembly includes a mass block, a magnet fixed to the mass block, and an elastic member that drives the mass block to move back and forth. The elastic member includes a first fixation portion, a first elastic portion, a second fixation portion...