ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,522,752, issued on Jan. 13, was assigned to NITTO DENKO Corp. (Ibaraki, Japan).

"Pressure-sensitive adhesive sheet" was invented by Masataka Nishiwaki (Ibaraki, Japan), Toshiki Ikami (Ibaraki, Japan) and Keigo Shimooka (Ibaraki, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a PSA sheet having limited light transmission with reduced PSA-entering light. A PSA sheet having a PSA layer is provided. The PSA layer comprising at least two species of colorants. The PSA layer has a light transmittance of 30% or lower and a light reflectance of 8% or higher."

The patent was filed on Dec. 17, 2020, under Application No. 18/023,613.

*For furthe...