US Patent Issued to BRIDGESTONE on July 1 for "Rubber composition and rubber product" (Japanese Inventor)

ALEXANDRIA, Va., July 3 -- United States Patent no. 12,344,725, issued on July 1, was assigned to BRIDGESTONE Corp. (Tokyo).

"Rubber composition and rubber product" was invented by Tomoyuki Kosai (Chuo-ku, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A rubber composition contains a rubber component containing at least one selected from the group consisting of an isoprene rubber, a butadiene rubber, and a styrene-butadiene copolymer rubber, and a compound (1) represented by the following general formula (1). By using the rubber composition, it is possible to produce a rubber product having an excellent balance between a low strain hysteresis loss and a high strain hysteresis loss.[R1 and R2 in the gen...