ALEXANDRIA, Va., Oct. 6 -- United States Patent no. 12,753,182, issued on Oct. 6, was assigned to Semiconductor Energy Laboratory Co. Ltd. (Atsugi, Japan).

"Organic compound, light-emitting device, light-emitting apparatus, electronic appliance, and lighting device" was invented by Nozomi Komatsu (Atsugi, Japan), Sachiko Kawakami (Atsugi, Japan), Hiromitsu Kido (Atsugi, Japan) and Masatoshi Takabatake (Atsugi, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An organic compound that is stable in an excited state and has high emission efficiency is provided. An organic compound represented by General Formula (G1) is provided. Note that in General Formula (G1), Q1 represents sulfur or oxygen. R1 to R5 each...