ALEXANDRIA, Va., March 3 -- United States Patent no. 12,565,352, issued on March 3, was assigned to OKUMURA PRINTING Co. LTD. (Tokyo).
"Folded-sheet container" was invented by Hideo Yamada (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A folded-sheet container includes a bottom in a center portion of a sheet, side walls adjacent to the bottom, first and second folding lines from a periphery of the bottom toward a periphery of the sheet, a dart portion formed by folding back the sheet along the first folding line, a flap in an end portion opposing the bottom of the side wall and configured to be folded back, and an insertion piece in the flap. The dart portion is folded back along the second folding li...