ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,473,462, issued on Nov. 18, was assigned to NITTO DENKO Corp. (Ibaraki, Japan).
"Method for judging authenticity and pressure-sensitive adhesive sheet" was invented by Shigeki Watanabe (Ibaraki, Japan), Masahito Niwa (Ibaraki, Japan) and Yuki Tsubaki (Ibaraki, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An objective is to provide a method for judging the authenticity of a product or component. Provided is a method for judging product or component authenticity. The method includes a step of determining the percentage of radioactive carbon-14 based on ASTM 6866 with respect to at least one constituent that a product or component of interest obtai...