ALEXANDRIA, Va., Feb. 12 -- United States Patent no. 12,221,727, issued on Feb. 11, was assigned to NIPPON FILCON Co. LTD. (Tokyo).
"Multilayer fabric for nonwoven fabric" was invented by Toru Egawa (Shizuoka, Japan), Tsutomu Usuki (Shizuoka, Japan) and Keisuke Inoue (Shizuoka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "In a multilayer fabric for nonwoven fabric 30, an upper-surface-side fabric formed from upper-surface-side warps (1Ub, 2U, 3U, 4U, 4U', 5Ub, 6U, 7U, 8U, 8U') and upper-surface-side wefts (1'U, 2'U, 3'U, 4'U) and a lower-surface-side fabric formed from lower-surface-side warps (1Lb, 2L, 3L, 5Lb, 6L, 7L) and lower-surface-side wefts (1'L, 2'L, 3'L, 4'L) are bound together. First warps...