US Patent Issued to Semiconductor Energy Laboratory on Oct. 7 for "Material for hole-transport layer, material for hole-injection layer, organic compound, light-emitting device, light-emitting apparatus, electronic device, and lighting device" (Japanese Inventors)

ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,435,266, issued on Oct. 7, was assigned to Semiconductor Energy Laboratory Co. Ltd. (Atsugi, Japan).

"Material for hole-transport layer, material for hole-injection layer, organic compound, light-emitting device, light-emitting apparatus, electronic device, and lighting device" was invented by Takeyoshi Watabe (Kanagawa, Japan), Tomohiro Kubota (Kanagawa, Japan), Airi Ueda (Kanagawa, Japan), Satoshi Seo (Kanagawa, Japan), Nobuharu Ohsawa (Kanagawa, Japan) and Yuko Kubota (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A material for a hole-transport layer includes a monoamine compound. The first aromatic group, the second aromatic group, ...