ALEXANDRIA, Va., April 21 -- United States Patent no. 12,606,901, issued on April 21, was assigned to Samsung Display Co. Ltd. (Yongin-si, South Korea).

"Deposition apparatus" was invented by Junghyun Ahn (Yongin-si, South Korea), Jaesuk Moon (Yongin-si, South Korea) and Seungjin Lee (Yongin-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a deposition apparatus comprising a mask frame having a frame shape, masks on the mask frame, a magnet plate on the masks, rotating parts connected to a lower portion of the magnet plate, and magnet units connected to the rotating parts, and configured to be rotated by the rotating parts such that polarities of the magnet units are arranged in a ...