ALEXANDRIA, Va., June 12 -- United States Patent no. 12,296,541, issued on May 13, was assigned to KYORAKU Co. LTD. (Kyoto, Japan).
"Packaging bag and manufacturing system thereof" was invented by Masaru Kaizu (Niigata, Japan), Hiroyuki Hayashi (Tokyo), Masaaki Sueoka (Tokyo), Shun Morioka (Tokyo) and Yosuke Muroya (Kanagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides a manufacturing system of a packaging bag with excellent manufacturing efficiency. According to the present invention, provided is a manufacturing system of a packaging bag, including: a film supply device; a conveying device; a bottom insertion device; a bottom sealing device; a transverse sealing devic...