ALEXANDRIA, Va., June 6 -- United States Patent no. 12,283,487, issued on April 22, was assigned to Sumitomo Chemical Co. Ltd. (Tokyo).
"Method for manufacturing structure" was invented by Fumimasa Horikiri (Hitachi, Japan) and Noboru Fukuhara (Hitachi, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "There is provided a method for manufacturing a structure, including: applying a first etching to a surface of a member, at least the surface being composed of Group III nitride; and applying a second etching to the surface to which the first etching has been applied, wherein in applying the first etching, a flat portion and a protruding portion are formed, the flat portion being newly appeared on the surfac...