ALEXANDRIA, Va., March 17 -- United States Patent no. 12,576,674, issued on March 17, was assigned to The Yokohama Rubber Co. LTD. (Tokyo).
"Pneumatic tire" was invented by Toyoaki Endo (Kanagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A tread pattern of a pneumatic tire includes three or more circumferential main grooves extending in a tire circumferential direction, a land portion defined by the circumferential main grooves, and a sipe provided in the land portion. At least one edge of edges on both sides of the land portion in a tire width direction is a zigzag edge. The zigzag edge has a zigzag shape with recesses/protrusions that has a position periodically changing in the tire width direc...