ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,559,872, issued on Feb. 24, was assigned to SHIBAURA MACHINE Co. LTD. (Tokyo) and NATIONAL UNIVERSITY CORPORATION KANAZAWA UNIVERSITY (Ishikawa, Japan).

"Production device for melt-blown non-woven fabric" was invented by Yuya Sasai (Tokyo), Takafumi Sameshima (Tokyo), Yoshio Iizuka (Tokyo), Kaho Osada (Tokyo) and Kentaro Taki (Ishikawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A production device for melt-blown non-woven fabric, with which a high molecular weight polymer can be reduced in molecular weight by applying a shear force to the high molecular weight polymer without adding an additive such as a peroxide that promotes thermal decompo...