ALEXANDRIA, Va., July 21 -- United States Patent no. 12,686,754, issued on July 21, was assigned to SUMITOMO METAL MINING Co. LTD. (Tokyo).

"Infrared absorbing particles, infrared absorbing particle dispersion liquid, infrared absorbing particle dispersion material, infrared absorbing laminate transparent substrate, and infrared absorbing transparent substrate" was invented by Akinari Noshita (Kagoshima, Japan), Takeshi Chonan (Kagoshima, Japan) and Takafumi Ito (Kagoshima, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Infrared absorbing particles include composite tungsten oxide particles, wherein the composite tungsten oxide particles have a hexagonal crystal structure, and wherein the composite tun...