ALEXANDRIA, Va., March 17 -- United States Patent no. 12,576,574, issued on March 17, was assigned to NISSEI ASB MACHINE Co. LTD. (Nagano, Japan).
"Resin container manufacturing method" was invented by Kiyonori Shimada (Nagano, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present application includes an injection molding step and a stretch blow molding step. The stretch blow molding step is configured to include: a first step in which preliminary blow air is introduced into a preform to stretch the preform in a state in which a stretching rod does not contact the bottom of the preform; a second step which is executed after the first step, and in which the preliminary blow air is introduced into t...