ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,785,477, issued on Nov. 3, was assigned to TOPRAY MEMS INC. (Hsinchu City, Taiwan).
"Vibration motor with vibration in the direction of Z-axis" was invented by Chin-Sung Liu (Hsinchu City, Taiwan), Chi-Ling Chang (Hsinchu City, Taiwan) and Hsiao-Ming Chien (Hsinchu City, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A vibration motor with vibration in the direction of Z-axis is provided, including a mover carrier and a stator part; wherein, the mover carrier includes a suspension spring and a coil set, the stator part includes a stator part body and a flexible printed circuit board. The suspension spring is arranged on two opposite sides of the m...