ALEXANDRIA, Va., June 5 -- United States Patent no. 12,275,278, issued on April 15, was assigned to SUMITOMO RUBBER INDUSTRIES LTD. (Kobe, Japan).
"Tire" was invented by Shiho Okabayashi (Kobe, Japan), Shotaro Abe (Kobe, Japan), Ryuhei Sanae (Kobe, Japan) and Sho Nakajima (Kobe, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A tire has a tread portion including a first shoulder land region. The first shoulder land region is provided with first shoulder sipes. Each of the first shoulder sipes is provided with a chamfered portion over an entire lengthwise range from a first longitudinal edge to a first tread edge. Each of the chamfered portions includes a first chamfered portion defined between a shoulde...