ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,428,539, issued on Sept. 30, was assigned to BRIDGESTONE Corp. (Tokyo).

"Metal-rubber composite, conveyor belt, hose, rubber track, and tire" was invented by Kei Kimura (Tokyo) and Motoki Amiya (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A metal-rubber composite, comprising a metal and a rubber of which at least a portion is adhered to the metal, the composite is characterized in that: a ratio (C1/C2) of the total concentration (C1) of at least one metal element selected from the group consisting of bismuth, copper, antimony, silver, niobium, molybdenum, zirconium, and nickel in a region within 100 nm measured from an adhesion interface of th...