ALEXANDRIA, Va., March 17 -- United States Patent no. 12,576,314, issued on March 17, was assigned to SUMITOMO RUBBER INDUSTRIES LTD. (Kobe, Japan).

"Golf club head" was invented by Takashi Ono (Kobe, Japan) and Naruhiro Mizutani (Kobe, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A head has a curvature radius R of a boundary portion between a hitting face and a crown surface, and has a curvature radius S of a boundary portion between the hitting face and a sole surface. The head has, on its toe side, a curvature radius Rt, a curvature radius St, a face height Ft, and a head thickness Tt. The head has, at its center, a curvature radius Rc, a curvature radius Sc, a face height Fc, and a head thickness...