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. 13, 2024
Filed:
Jul. 09, 2018
Applicant:
Idemitsu Kosan Co., Ltd., Tokyo, JP;
Inventors:
Assignee:
IDEMITSU KOSAN CO., LTD., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H10K 85/60 (2023.01); C07D 405/04 (2006.01); C07D 405/10 (2006.01); C07D 405/14 (2006.01); C07D 409/10 (2006.01); C07D 409/14 (2006.01); C07D 457/04 (2006.01); C07D 487/04 (2006.01); C07D 491/048 (2006.01); C07D 495/04 (2006.01); C09B 57/00 (2006.01); C09B 69/00 (2006.01); C09K 11/06 (2006.01); H05B 33/20 (2006.01); H10K 50/11 (2023.01); H10K 85/30 (2023.01);
U.S. Cl.
CPC ...
H10K 85/615 (2023.02); C07D 405/10 (2013.01); C07D 405/14 (2013.01); C07D 457/04 (2013.01); C07D 487/04 (2013.01); C07D 491/048 (2013.01); C07D 495/04 (2013.01); C09B 57/00 (2013.01); C09B 69/008 (2013.01); C09K 11/06 (2013.01); H05B 33/20 (2013.01); H10K 85/657 (2023.02); H10K 85/6572 (2023.02); H10K 85/6574 (2023.02); C09K 2211/1007 (2013.01); C09K 2211/1029 (2013.01); C09K 2211/1033 (2013.01); C09K 2211/1044 (2013.01); C09K 2211/1059 (2013.01); C09K 2211/1092 (2013.01); C09K 2211/185 (2013.01); H10K 50/11 (2023.02); H10K 85/342 (2023.02); H10K 85/631 (2023.02);
Abstract
A nitrogen-containing aromatic heterocyclic derivative in which a nitrogen atom of an indenocarbazole skeleton optionally having a hetero atom or an indenoindole skeleton optionally having a hetero atom is bonded to a dibenzofuran or a dibenzothiophene directly or indirectly. The derivative realizes an organic EL device with a high emission efficiency and a long lifetime.