US Patent Issued to Canon on June 24 for "Organic compound and organic light-emitting device" (Japanese Inventors)

ALEXANDRIA, Va., June 25 -- United States Patent no. 12,338,252, issued on June 24, was assigned to Canon K.K. (Tokyo).

"Organic compound and organic light-emitting device" was invented by Yosuke Nishide (Kanagawa, Japan), Hirokazu Miyashita (Kanagawa, Japan), Naoki Yamada (Tokyo) and Jun Kamatani (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "There is provided an organic compound represented by formula [1-1] or [1-2]:where R1 to R20 are each independently selected from a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an amino group, an aromatic hydrocarbon group, a heterocyclic group, an aryloxy group, a silyl group, and a cyano group, in which at least one of R1 to R4 and R6 to R9 a...