GENEVA, Dec. 1 -- TOPPAN HOLDINGS INC. (5-1, Taito 1-chome, Taito-ku, Tokyo1100016), TOPPANホールディングス株式会社 (東京都台東区台東1丁目5番1号) filed a patent application (PCT/JP2025/016178) for "PACKAGING MATERIAL, PACKAGING BAG, GAS BARRIER LAMINATE, AND METHOD FOR MANUFACTURING GAS BARRIER LAMINATE" on Apr 28, 2025. With publication no. WO/2025/243797, the details related to the patent application was published on Nov 27, 2025.

Notably, the patent application was submitted under the International Patent Classification (IPC) system,...