ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,458,850, issued on Nov. 4, was assigned to SUMITOMO RUBBER INDUSTRIES LTD. (Kobe, Japan).
"Golf club head" was invented by Naruhiro Mizutani (Kobe, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A hollow head includes a face portion, a crown portion, a sole portion, and a hosel portion. The crown portion forms a crown outer surface and a crown inner surface. The crown portion includes a crown atypically-shaped portion and a crown rib that is disposed on the crown inner surface. The crown atypically-shaped portion is a crown projection that forms a projection on the crown outer surface while forming a recess on the crown inner surface, or a crown re...