ALEXANDRIA, Va., June 6 -- United States Patent no. 12,280,617, issued on April 22, was assigned to The Yokohama Rubber Co. LTD. (Tokyo).
"Pneumatic tire and tire molding mold" was invented by Takashi Kidesaki (Kanagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A pneumatic tire includes sipes disposed in a land portion formed in a tread portion, and pin holes for stud pins disposed in the land portion. The sipes are disposed at positions where a distance Ds from the pin hole and a diameter Dp of the pin hole satisfy (Ds/Dp)less than=4.0. A sipe in which the distance Ds from the pin hole and the diameter Dp of the pin hole satisfy (Ds/Dp)less than equal to5.0 is defined as a pin hole neighboring s...