ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,466,923, issued on Nov. 11, was assigned to TOYO TIRE Corp. (Itami, Japan).
"Rubber composition manufacturing method and tire manufacturing method" was invented by Shinsaku Kamada (Itami, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A rubber composition manufacturing method comprising an operation in which an intermeshing internal kneader is used to knead at least rubber, silica, and silane coupling agent, wherein the operation comprises a first step in which kneading which is accompanied by increase in kneading temperature is carried out during an initial phase of the operation; kneading is carried out during the first step while a ram is maint...