ALEXANDRIA, Va., June 17 -- United States Patent no. 12,312,367, issued on May 27, was assigned to Canon K.K. (Tokyo).
"Iridium complex-containing composition, organic light emitting device having the same, display apparatus, imaging apparatus, electronic equipment, lighting apparatus, and moving body" was invented by Takeshi Sekiguchi (Kanagawa, Japan), Kentaro Ito (Tokyo) and Katsuyuki Hotta (Kanagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A composition that contains an iridium complex and an isomer of the iridium complex, in which the amount of the isomer of the iridium complex is decreased. The iridium complex is a homo-N-trans (HNT) iridium complex having an iridium atom, and a first liga...