ALEXANDRIA, Va., June 10 -- United States Patent no. 12,291,605, issued on May 6, was assigned to DIC Corp. (Tokyo).

"Composite structure and manufacturing method thereof" was invented by Kenji Nakamura (Ichihara, Japan) and Tomomichi Kanda (Ichihara, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention is directed to a composite structure in which a metal member having a roughened surface and a resin member are joined in a state in which at least a portion of the roughened surface is included. The resin member is made of a molded article obtained by melt-molding a polyarylene sulfide resin composition containing a polyarylene sulfide resin. In the roughened surface, a cumulative pore volume of...