US Patent Issued to TOYO SEIKAN on Oct. 28 for "Easy-open packaging bag, and easy-open laminate film and pouch having gas barrier properties" (Japanese Inventors)

ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,454,115, issued on Oct. 28, was assigned to TOYO SEIKAN Co. LTD. (Tokyo).

"Easy-open packaging bag, and easy-open laminate film and pouch having gas barrier properties" was invented by Masahiro Hongou (Yokohama, Japan) and Shie Matsunaga (Yokohama, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a packaging bag in which the difficulty of tearing caused by temperature rising is resolved. The easy to open packaging bag for sealing a laminated film by heat sealing, wherein the laminated film includes an inner layer film, an intermediate layer film having an opening induction flaw formed thereon, and an outer layer film including a biaxiall...