ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,533,913, issued on Jan. 27, was assigned to Sumitomo Rubber Industries Ltd. (Hyogo, Japan).
"Tire" was invented by Hiroshi Yamaoka (Kobe, Japan) and Hiroki Mizokawa (Kobe, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A tire 1 includes a tread portion 2. The tread portion 2 includes tread ends Te, three circumferential grooves 3, and four land portions 4. The circumferential grooves 3 include one shoulder circumferential groove 5 and one crown circumferential groove 6. The land portions 4 include one shoulder land portion 9 and one crown land portion 10. The shoulder land portion 9 includes shoulder blocks having shoulder sipes. An inner end of t...