ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,562,189, issued on Feb. 24, was assigned to Seagate Technology LLC (Fremont, Calif.).

"Disk drive arm actuator with piezoelectric ultrasonic motor" was invented by Yichao Ma (Singapore) and Xiong Liu (Singapore).

According to the abstract* released by the U.S. Patent & Trademark Office: "A data storage device includes a stack of data storage disks, a head stack assembly, and a piezoelectric motor. The head stack assembly includes an arm, a load beam, a head and a tail. The arm is configured for pivotal motion about a longitudinal axis of an actuator shaft. The load beam is attached to the arm. The head is attached to the load beam and is configured to interact with a surface of one o...