ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,420,593, issued on Sept. 23, was assigned to BRIDGESTONE Corp. (Tokyo).
"Pneumatic tire" was invented by Mayuko Karasawa (Tokyo), Shungo Fujita (Tokyo) and Kai Yamada (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A pneumatic tire including a center block row 21 provided in a center area of a tread surface 1, wherein the center block row includes a plurality of center blocks 210 arranged along a tire circumferential direction, the plurality of center blocks includes a plurality of first center blocks 211 and a plurality of second center blocks 212, the plurality of first center blocks and the plurality of second center blocks have polygonal shap...