ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,730,996, issued on Sept. 8, was assigned to DENSO Corp. (Kariya-city, Japan).

"Code formation method and information code" was invented by Shuichi Matsubara (Kariya-city, Japan), Tatsuya Okabe (Kariya-city, Japan), Shinichi Kikuchi (Kariya-city, Japan), Mitsuo Okumura (Kariya-city, Japan), Hiroyuki Sakakibara (Kariya-city, Japan) and Yuji Ito (Kariya-city, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A code formation method for forming an information code on a target object is provided. The information code stores information with an array of a light area and a dark area. The code formation method includes forming an emissive layer by applying, ...