ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,377,681, issued on Aug. 5, was assigned to The Yokohama Rubber Co. Ltd. (Tokyo).
"Pneumatic tire" was invented by Keisuke Murase (Kanagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A pneumatic tire includes a tread portion composed of a tread rubber composition containing silica. The pneumatic tire exhibits improved processability over time without negatively affecting the wet grip properties and rolling resistance of the tread rubber composition. The tread portion includes a tread rubber composition including: 50 parts by mass to 90 parts by mass of silica, per 100 parts by mass of diene rubber containing 30 mass % to 90 mass % of a terminal...