ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,483,161, issued on Nov. 25, was assigned to LG INNOTEK Co. LTD. (Seoul, South Korea).

"Ultrasonic linear motor and operation method therefor" was invented by Sang Young Lee (Seoul, South Korea) and Myoung Seok Sung (Seoul, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are an ultrasonic linear motor and a method of driving the same. The ultrasonic linear motor includes a vibrator including an elastic portion and a first piezoelectric element and a second piezoelectric element which are disposed on two surfaces of the elastic portion, a moving shaft coupled to the vibrator and moved according to a displacement of the vibrator, a mov...