ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,434,409, issued on Oct. 7, was assigned to TOYO TIRE Corp. (Itami, Japan).
"Rubber composition manufacturing method, tire manufacturing method, and rubber composition manufacturing apparatus" was invented by Sho Taniguchi (Itami, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A rubber composition manufacturing method comprises an operation in which at least rubber, silica, and silane coupling agent are kneaded in an internal kneader at not less than a temperature lower limit for a coupling reaction between the silica and the silane coupling agent to proceed. For at least a portion of time during which that operation is being carried out, a compress...