ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,378,051, issued on Aug. 5, was assigned to TOYO SEIKAN Co. LTD. (Tokyo) and TOYO SEIKAN GROUP HOLDINGS LTD. (Tokyo).
"Packaging bag" was invented by Masahiro Hongo (Yokohama, Japan), Takahiro Kurosawa (Yokohama, Japan), Takashi Miura (Yokohama, Japan), Kazuaki Ohashi (Yokohama, Japan), Yoshiyuki Yuasa (Yokohama, Japan) and Takahiro Akahane (Yokohama, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A packaging bag including a polyester-based multilayer film. The multilayer film includes at least: an innermost layer formed of a biaxially stretched polyethylene terephthalate film; a layer formed of polybutylene terephthalate; and/or a layer formed of a...