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:
Oct. 06, 2026
Filed:
Dec. 26, 2017
Applicant:
Idemitsu Kosan Co., Ltd., Chiyoda-ku, JP;
Inventors:
Assignee:
IDEMITSU KOSAN CO., LTD., Chiyoda-ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
H10K 85/60 (2023.01); C07C 211/61 (2006.01); C07C 217/80 (2006.01); C07C 217/92 (2006.01); C07C 255/58 (2006.01); C07D 209/86 (2006.01); C07D 307/91 (2006.01); C07D 333/76 (2006.01); C07D 405/12 (2006.01); C07D 409/12 (2006.01); C09B 11/04 (2006.01); C09B 57/00 (2006.01); C09K 11/06 (2006.01); H10K 50/15 (2023.01); H10K 50/17 (2023.01); H10K 50/11 (2023.01); H10K 50/81 (2023.01); H10K 50/82 (2023.01);
U.S. Cl.
CPC ...
C07C 211/61 (2013.01); C07C 217/80 (2013.01); C07C 217/92 (2013.01); C07C 255/58 (2013.01); C07D 209/86 (2013.01); C07D 307/91 (2013.01); C07D 333/76 (2013.01); C07D 405/12 (2013.01); C07D 409/12 (2013.01); C09B 11/04 (2013.01); C09B 57/00 (2013.01); C09B 57/008 (2013.01); C09K 11/06 (2013.01); H10K 85/633 (2023.02); H10K 85/636 (2023.02); H10K 85/6574 (2023.02); H10K 85/6576 (2023.02); C07C 2603/18 (2017.05); C09K 2211/1011 (2013.01); C09K 2211/1014 (2013.01); C09K 2211/1029 (2013.01); C09K 2211/1033 (2013.01); C09K 2211/1037 (2013.01); C09K 2211/1088 (2013.01); C09K 2211/1092 (2013.01); H10K 50/11 (2023.02); H10K 50/15 (2023.02); H10K 50/17 (2023.02); H10K 50/81 (2023.02); H10K 50/82 (2023.02); H10K 85/615 (2023.02); H10K 85/626 (2023.02);
Abstract
An aromatic amine derivative represented by formula (1): wherein R, R, R, L, Ar, Ar, k, m, and n are the same as defined in the specification, is useful as a material for an organic EL device and realizes an organic EL device with a high efficiency and a long lifetime even when driving it at a low voltage.