ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,433,162, issued on Sept. 30, was assigned to IDEMITSU KOSAN Co. LTD. (Tokyo).

"Compound, organic electroluminescence device, and electronic apparatus" was invented by Yuki Nakano (Sodegaura, Japan), Taro Yamaki (Sodegaura, Japan), Satomi Tasaki (Sodegaura, Japan) and Tomoki Kato (Sodegaura, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A compound represented by the following formula (1) (In the formula (1), at least one of R1 to R8 is a deuterium atom; Ar2 is a monovalent group represented by the following formula (2), (3) or (4))."

The patent was filed on Oct. 9, 2019, under Application No. 17/283,382.

*For further information, including imag...