ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,478,547, issued on Nov. 25, was assigned to LG Electronics Inc. (Seoul, South Korea).

"Wearable device" was invented by Nayoung Kim (Seoul, South Korea), Dongwon Kim (Seoul, South Korea), Yongju Yang (Seoul, South Korea) and Gueisam Lim (Seoul, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A wearable device according to an embodiment of the present invention includes an inner body; an ultrasonic generator attached to the inner body, an outer body attached to the ultrasonic generator, wherein the ultrasonic generator includes at least one ultrasonic vibrator, a positive electrode substrate connected to the at least one ultrasonic vibrator, a...