ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,544,999, issued on Feb. 10, was assigned to BRIDGESTONE Corp. (Tokyo).
"Mold for forming a tire and tire production method" was invented by Yasuyuki Ishihara (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are a mold for forming a tire including a tread molding part which is configured to be opened and closed by moving a plurality of segments in a radial direction, and a tire production method using the same. In the mold, each of the segments includes a holder; a plurality of design surface dividing mold parts disposed in a circumferentially arranged manner on a radially inner side of the holder; and a plate spring member to which the plu...