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:
Feb. 24, 2026
Filed:
Feb. 12, 2016
Applicant:
Merck Patent Gmbh, Darmstadt, DE;
Inventors:
Motoaki Sugino, Akishima, JP;
Eisaku Katoh, Hachioji, JP;
Assignee:
MERCK PATENT GMBH, Darmstadt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/00 (2006.01); C07D 209/82 (2006.01); C07D 405/14 (2006.01); C07D 409/14 (2006.01);
U.S. Cl.
CPC ...
C07D 209/82 (2013.01); C07D 405/14 (2013.01); C07D 409/14 (2013.01);
Abstract
The present invention addresses the problem of providing a novel aromatic heterocyclic derivative, providing an organic EL element that uses the derivative and has high luminous efficiency, long luminescence life, and few changes over time when used under high temperatures, and providing a display device and an illumination device that are equipped with the organic El element. This aromatic heterocyclic derivative is characterized by having a specific structure which includes a carbazole ring.