ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,448,474, issued on Oct. 21, was assigned to BRIDGESTONE Corp. (Tokyo).

"Rubber composition and tire" was invented by Ryota Sone (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a rubber composition having excellent low heat generating properties. The rubber composition of the present disclosure contains a rubber component, a filler containing silica, and a silane coupling agent, where the rubber component contains a conjugated diene-based polymer modified with a modifier containing a compound represented by the formula (1), and the silane coupling agent is a compound represented by the formula (2)."

The patent was filed on Sept. 23, 20...