US Patent Issued to HUIZHOU FORYOU OPTICAL TECHNOLOGY on Aug. 5 for "Magnetic pigment flake, optically variable ink, and anti-falsification article" (Chinese Inventors)

ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,379,529, issued on Aug. 5, was assigned to HUIZHOU FORYOU OPTICAL TECHNOLOGY Co. LTD. (Huizhou, China).

"Magnetic pigment flake, optically variable ink, and anti-falsification article" was invented by Hongbao Sun (Huizhou, China), Qianyun Sun (Huizhou, China), Zhangrong Chen (Huizhou, China) and Shuo Pan (Huizhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A magnetic pigment flake includes a filtering film layer, with magnetic or magnetizable material, and a metal nanoparticles layer, formed on a surface of the filtering film layer. The metal nanoparticles layer is configured to generate scattered light enhanced by a local surface plasmon reson...