US Patent Issued to TORAY INDUSTRIES on Aug. 5 for "Stretch-processed yarn, fiber product, composite spinneret, and composite fiber production method" (Japanese Inventors)

ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,378,704, issued on Aug. 5, was assigned to TORAY INDUSTRIES Inc. (Tokyo).

"Stretch-processed yarn, fiber product, composite spinneret, and composite fiber production method" was invented by Tomohiko Matsuura (Mishima, Japan), Hideki Morioka (Otsu, Japan) and Masato Masuda (Mishima, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A stretch yarn includes a multifilament including fibers having a coiled crimping form in a fiber axial direction, wherein a coil diameter distribution of crimping in the fiber has two or more groups, a ratio of a maximum group average value to a minimum group average value of the coil diameter (a maximum group average value...