US Patent Issued to Semiconductor Energy Laboratory on Feb. 17 for "Light-emitting device, light-emitting apparatus, electronic device, and lighting device" (Japanese Inventors)

ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,557,467, issued on Feb. 17, was assigned to Semiconductor Energy Laboratory Co. Ltd. (Japan).

"Light-emitting device, light-emitting apparatus, electronic device, and lighting device" was invented by Yusuke Takita (Kanagawa, Japan), Tsunenori Suzuki (Kanagawa, Japan), Naoaki Hashimoto (Kanagawa, Japan), Takumu Okuyama (Kanagawa, Japan) and Satoshi Seo (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A novel light-emitting device is provided. Alternatively, a light-emitting device having a long driving lifetime at high temperature is provided. The light-emitting device includes an anode, a cathode, and an EL layer positioned between the an...