ALEXANDRIA, Va., June 10 -- United States Patent no. 12,291,059, issued on May 6, was assigned to SUMITOMO RUBBER INDUSTRIES LTD. (Hyogo, Japan).
"Heavy duty pneumatic tire" was invented by Hiroki Shinohara (Hyogo, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A heavy duty pneumatic tire includes a crown circumferential groove, a shoulder circumferential groove, crown lateral grooves, and crown blocks. The crown circumferential groove includes crown first-side vertexes and crown second-side vertexes and thus zigzags. The shoulder circumferential groove includes shoulder inner-side vertexes and shoulder outer-side vertexes. The crown lateral grooves are disposed at two pitch intervals of a zigzag of th...