The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 12, 2025
Filed:
Dec. 19, 2023
Applicant:
Idemitsu Kosan Co., Ltd., Tokyo, JP;
Inventors:
Tomoki Kato, Chiba, JP;
Taro Yamaki, Ichihara, JP;
Masahiro Kawamura, Chiba, JP;
Hirokatsu Ito, Ichihara, JP;
Assignee:
IDEMITSU KOSAN CO., LTD., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07C 211/61 (2006.01); C09K 11/06 (2006.01); H10K 50/11 (2023.01); H10K 50/15 (2023.01); H10K 85/60 (2023.01); H10K 50/18 (2023.01); H10K 101/10 (2023.01);
U.S. Cl.
CPC ...
C07C 211/61 (2013.01); C09K 11/06 (2013.01); H10K 50/11 (2023.02); H10K 50/156 (2023.02); H10K 85/626 (2023.02); H10K 85/633 (2023.02); C07C 2603/18 (2017.05); C07C 2603/26 (2017.05); C07C 2603/42 (2017.05); C07C 2603/52 (2017.05); C07C 2603/54 (2017.05); C09K 2211/1011 (2013.01); C09K 2211/1014 (2013.01); C09K 2211/1088 (2013.01); H10K 50/15 (2023.02); H10K 50/18 (2023.02); H10K 50/181 (2023.02); H10K 2101/10 (2023.02);
Abstract
A compound represented by formula (1) provides a high performance organic electroluminescence device and a novel material for realizing such an organic electroluminescence device: wherein Rto R, a to f, Lto L, and Ar are as defined in the description.