US Patent Issued to Hodogaya Chemical on May 27 for "Compound having a fused-azole ring structure and organic electroluminescent element" (Japanese Inventors)

ALEXANDRIA, Va., June 17 -- United States Patent no. 12,317,744, issued on May 27, was assigned to Hodogaya Chemical Co. Ltd. (Tokyo).

"Compound having a fused-azole ring structure and organic electroluminescent element" was invented by Naoaki Kabasawa (Tokyo), Keigo Naito (Tokyo) and Taeyoung Kim (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "To provide an organic compound having a high electron injection/transport performances, an excellent hole blocking ability, and a stable thin-film state, as a material for organic electroluminescent devices with high efficiency and high durability, and also to provide an organic electroluminescent device having a high efficiency and high durability by using the ...