ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,781,327, issued on Nov. 3, was assigned to NIPPON STEEL CHEMICAL & MATERIAL Co. LTD. (Tokyo).

"Ferrous alloy foil, manufacturing method therefor, and component using same" was invented by Hiroto Unno (Tokyo), Atsushi Yashiro (Tokyo), Hiroaki Ohara (Tokyo), Ayaka Sawada (Tokyo), Naoki Fujimoto (Tokyo) and Naoya Sawaki (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention addresses the problem of reducing the cause of etching failure or pinholes as much as possible in an extremely thin ferrous alloy foil that has a thickness of 10-30 micro metre and that is applied to a metal mask used for increasing the precision of an electronic com...