ALEXANDRIA, Va., July 9 -- United States Patent no. 12,350,818, issued on July 8, was assigned to SAMSUNG ELECTRONICS Co. LTD. (Suwon-si, South Korea).

"Joint device for robot" was invented by Cheoggyu Hwang (Suwon-si, South Korea) and Jinwoong Kim (Suwon-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A joint device for a robot is provided. The present joint device includes: a first shaft; a second shaft disposed perpendicular to the first shaft; a first friction wheel rotatably supported by a first end of the first shaft; a second friction wheel rotatably supported by a second end of the first shaft; a driving device configured to rotate each of the first friction wheel and the second fricti...