ALEXANDRIA, Va., March 31 -- United States Patent no. 12,590,196, issued on March 31, was assigned to TOPPAN INC. (Tokyo).
"Laminated film" was invented by Hiroki Nakata (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A laminated film in which curl is suppressed when the film is heat-sealed with a material different from that of a substrate, the substrate is made of polyethylene terephthalate; and a sealant laminated on one side of the substrate and being to be sealed with a dissimilar material that is a material different from that of the substrate, wherein, when a laminate including a 100 mmx100 mm square of a portion of the laminated film and an 80 mmx80 mm square of the dissimilar material is place...