ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,556,078, issued on Feb. 17, was assigned to AAC Microtech (Changzhou) Co. Ltd. (Changzhou, China).
"Vibration exciter" was invented by Aijie Zhu (Shenzhen, China), Zixu Hua (Shenzhen, China), Jie Liu (Shenzhen, China) and Jiulong Hu (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure discloses a vibration exciter comprising: a housing having a housing cavity, a stator assembly fixed in the housing, and a vibrator assembly housed in the housing cavity and driven to vibrate by the stator assembly; the stator assembly comprises a pole core fixedly attached to the inner side of the housing and a magnet fixedly attached to ...