ALEXANDRIA, Va., July 16 -- United States Patent no. 12,358,326, issued on July 15, was assigned to The Yokohama Rubber Co. LTD. (Tokyo).

"Pneumatic tire" was invented by Hiroyuki Yoshida (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A pneumatic tire includes a plurality of main grooves and a land portion defined by the main grooves. Further, the main groove includes a rib-shaped protrusion portion protruding from a groove bottom of the main groove and extending in a tire width direction, and being coupled to a groove wall of the main groove at, at least, one end. Further, a maximum height H1 of the protrusion portion has a relationship 0.01less than equal toH1/Hgless than equal to0.20 with...