ALEXANDRIA, Va., March 24 -- United States Patent no. 12,583,263, issued on March 24, was assigned to The Yokohama Rubber Co. LTD. (Tokyo).
"Pneumatic tire" was invented by Hironori Wada (Kanagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a pneumatic tire including a plurality of main grooves extending in a tire circumferential direction and land portions defined by the main grooves adjacent to each other, respectively. The land portions are ribs that are continuous in the tire circumferential direction, and include lug grooves having a semi-closed structure, respectively. Of the main grooves defining the land portions, at least one of the main grooves has a zigzag shape formed by alt...