US Patent Issued to Semiconductor Energy Laboratory on June 10 for "Organometallic complex, light-emitting material for top emission, light-emitting device, light-emitting apparatus, electronic device, and lighting device" (Japanese Inventors)

ALEXANDRIA, Va., June 18 -- United States Patent no. 12,325,716, issued on June 10, was assigned to Semiconductor Energy Laboratory Co. Ltd. (Atsugi, Japan).

"Organometallic complex, light-emitting material for top emission, light-emitting device, light-emitting apparatus, electronic device, and lighting device" was invented by Tomoya Yamaguchi (Kanagawa, Japan), Hideko Yoshizumi (Kanagawa, Japan), Yuta Kawano (Kanagawa, Japan), Takeyoshi Watabe (Kanagawa, Japan) and Satoshi Seo (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Providing a novel organometallic complex represented by Structure Formula (G1). A1 to A4 independently represent an alkyl group having 1 to 6 carbon atoms or a cycloalky...