ALEXANDRIA, Va., May 19 -- United States Patent no. 12,635,403, issued on May 19, was assigned to UDC Ireland (Dublin).
"Organic electroluminescence device" was invented by Eiji Fukuzaki (Kanagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An organic electroluminescence device material comprising a metal complex having a neopentyl group, for example, as shown below; and an organic electroluminescence device comprising a substrate having thereon a pair of electrodes and at least one organic layer between the electrodes, the organic layer containing a light emitting layer, wherein any one of the organic layer contains the organic electroluminescence device material."
The patent was filed on April 1...