ALEXANDRIA, Va., March 31 -- United States Patent no. 12,592,624, issued on March 31, was assigned to Minebea Mitsumi Inc. (Nagano, Japan).

"Vibration actuator with movable body and fixing body having magnetic cylindrical body outside coil with length" was invented by Yuki Takahashi (Tokyo), Chikara Sekiguchi (Tokyo), Shigeyuki Shimomura (Tokyo), Daisuke Kodama (Tokyo), Yuta Yoshii (Tokyo), Yasutaka Kitamura (Tokyo) and Shigenori Inamoto (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A vibration actuator includes: a movable body which includes a stack formed by a magnet, a pair of magnetic cores and a pair of non-magnetic weights, is supported at both upper and lower sides of the movable body by a pai...