ALEXANDRIA, Va., March 24 -- United States Patent no. 12,583,195, issued on March 24, 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 (1) including an annular tread molding part (20) which is configured to be opened and closed by moving a plurality of segments (21) in a radial direction, and a tire production method using the same. In the mold for forming the tire (1), each of the segment (21) includes an extrusion member (30) which protrudes from a tread design surface (20c) for forming a tread (2c) of the tire (2) when the tread moldi...