ALEXANDRIA, Va., July 7 -- United States Patent no. 12,673,517, issued on July 7, was assigned to TOYO TIRE Corp. (Itami, Japan).
"Rubber composition for tire tread and tire" was invented by Yasuhiro Hishikawa (Itami, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A rubber composition for a tire tread according to an embodiment includes, per 100 parts by mass of a diene rubber including 30 to 85 parts by mass of a styrene butadiene rubber and 15 to 70 parts by mass of a butadiene rubber and having an average glass transition temperature of -57deg C. or less: 90 to 150 parts by mass of silica; 5 to 30 parts by mass of an oil; and 10 parts by mass or more and less than 40 parts by mass of a thermoplastic...