ALEXANDRIA, Va., July 9 -- United States Patent no. 12,350,972, issued on July 8, was assigned to SUMITOMO RUBBER INDUSTRIES LTD. (Kobe, Japan).
"Tire" was invented by Koichi Nakajima (Kobe, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A tire is provided with blocks in a tread portion. Each of the blocks has a block wall surface provided with first recesses. Each of the first recesses extends across a block ground contacting surface and the block wall surface. Each of the first recesses has a triangular ground contacting surface opening on the block ground contacting surface and a triangular wall surface opening on the block wall surface. The wall surface opening has a first end terminating without r...