ALEXANDRIA, Va., June 5 -- United States Patent no. 12,278,544, issued on April 15, was assigned to JAHWA electronics Co. Ltd. (Cheongju-si, South Korea).
"Actuator for generating vibration" was invented by Hyo Jun Kim (Cheongju-si, South Korea), Soon Koo Shim (Cheongju-si, South Korea), Jong Soo Ryu (Cheongju-si, South Korea), Hyun Gyu Sung (Cheongju-si, South Korea), Jung Hoon Jang (Cheongju-si, South Korea) and Jun Ki Lee (Bucheon-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "An actuator for generating vibration, including a middle supporter to form a first space; a shaft provided in the middle supporter and exposed in the first space; a circuit board having a driving coil and a hollow fo...