ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,480,199, issued on Nov. 25, was assigned to Dai Nippon Printing Co. Ltd. (Tokyo).

"Metal mask and method for manufacturing metal mask" was invented by Yuji Anzai (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A metal mask in which shadow is less likely to occur while the strength is kept, and a method for manufacturing the metal mask are provided. The metal mask includes a first surface, and a second surface positioned opposite to the first surface. The first surface has through-holes, a first top part, and a second top part. The through-holes have a first through-hole, a second through-hole, a third through-hole, a fourth through-hole, a fifth t...