ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,446,465, issued on Oct. 14, was assigned to Semiconductor Energy Laboratory Co. Ltd. (Japan).
"Organic compound, light-emitting element, light-emitting device, electronic device, and lighting device" was invented by Tomoya Hirose (Kanagawa, Japan), Hiroshi Kadoma (Kanagawa, Japan), Satoko Shitagaki (Kanagawa, Japan) and Satoshi Seo (Kanagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A novel organic compound with which the emission characteristics, emission efficiency, and reliability of a light-emitting element can be improved is provided. The organic compound has an imidazo[1,2-f]phenanthridine skeleton and a dibenzothiophene skeleton or a ...