ALEXANDRIA, Va., March 19 -- United States Patent no. 12,252,317, issued on March 18, was assigned to Dai Nippon Printing Co. Ltd. (Tokyo).
"Barrier film and packaging material" was invented by Satoshi Shioda (Tokyo), Hidenari Kanetaka (Tokyo), Kenta Konishi (Tokyo), Masanori Sawada (Tokyo), Ryunosuke Shiota (Tokyo), Yoshihiro Kishimoto (Tokyo) and Ai Okano (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a barrier film which is less likely to undergo deterioration of gas barrier properties even after the Gelbo Flex test. The barrier film according to the present invention includes a barrier coat layer, an inorganic oxide vapor deposition layer, and a substrate layer in this order, the barri...