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:
Apr. 08, 2025
Filed:
May. 31, 2022
Applicant:
Idemitsu Kosan Co., Ltd., Tokyo, JP;
Inventors:
Masakazu Funahashi, Chiba, JP;
Takahiro Fujiyama, Kisarazu, JP;
Assignee:
IDEMITSU KOSAN CO., LTD., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/50 (2006.01); C07D 307/91 (2006.01); C07D 333/76 (2006.01); C09K 11/06 (2006.01); H10K 85/60 (2023.01); H10K 50/11 (2023.01); H10K 50/15 (2023.01);
U.S. Cl.
CPC ...
H10K 85/633 (2023.02); C07D 307/91 (2013.01); C07D 333/76 (2013.01); C09K 11/06 (2013.01); H10K 85/636 (2023.02); H10K 85/657 (2023.02); H10K 85/6574 (2023.02); H10K 85/6576 (2023.02); C09K 2211/1007 (2013.01); C09K 2211/1011 (2013.01); C09K 2211/1088 (2013.01); C09K 2211/1092 (2013.01); H10K 50/11 (2023.02); H10K 50/15 (2023.02); H10K 50/156 (2023.02); H10K 85/615 (2023.02); H10K 85/654 (2023.02); H10K 85/6572 (2023.02);
Abstract
A compound represented by formula (1): wherein Arrepresents a group represented by formula (3); Arrepresents a group selected from a group represented by formula (3) and a substituted fluorenyl group: and R, R, Rand Rare as defined in the description is provided. An electroluminescence device which contains the compound of formula (1) is also provided.