ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,522,024, issued on Jan. 13, was assigned to SUMITOMO RUBBER INDUSTRIES LTD. (Kobe, Japan).
"Tire" was invented by Takayuki Namera (Kobe, Japan), Yuto Hashimoto (Kobe, Japan), Sho Nakajima (Kobe, Japan) and Ryuhei Sanae (Kobe, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A tire comprises a tread portion provided with blocks including a first block provided with a plurality of sipes. Each sipe comprises a zigzag portion in a cross section perpendicular to the sipe length direction, and a zigzag portion in a cross section parallel to the ground contacting top surface of the first block. Each of the sipes is provided with at least one tie bar protru...