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:
Jun. 15, 2021
Filed:
Dec. 28, 2016
Applicants:
Kyulux, Inc., Fukuoka, JP;
Kyushu University, National University Corporation, Fukuoka, JP;
Inventors:
Keiro Nasu, Fukuoka, JP;
Chihaya Adachi, Fukuoka, JP;
Hajime Nakanotani, Fukuoka, JP;
Hiroko Nomura, Fukuoka, JP;
Assignees:
KYULUX, INC., Fukuoka, JP;
KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION, Fukuoka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/50 (2006.01); H01L 51/00 (2006.01); C09K 11/06 (2006.01); C07D 209/86 (2006.01); H01L 51/56 (2006.01); H01L 51/52 (2006.01);
U.S. Cl.
CPC ...
H01L 51/0072 (2013.01); C07D 209/86 (2013.01); C09K 11/06 (2013.01); H01L 51/0064 (2013.01); C09K 2211/1018 (2013.01); H01L 51/001 (2013.01); H01L 51/5012 (2013.01); H01L 51/5056 (2013.01); H01L 51/5072 (2013.01); H01L 51/5088 (2013.01); H01L 51/5092 (2013.01); H01L 51/5206 (2013.01); H01L 51/5221 (2013.01); H01L 51/56 (2013.01); H01L 2251/308 (2013.01); H01L 2251/558 (2013.01);
Abstract
A compound having a structure represented by the following general formula emits delayed fluorescent light and is useful as a light-emitting material. Three or more of R, R, R, and Reach represent a 9-carbazolyl group, a 10-phenoxazyl group, or a 10-phenothiazyl group, and the balance thereof and Reach represent a hydrogen atom or a substituent, but exclude a cyano group. Rexcludes an aryl group, a heteroaryl group, and an alkynyl group.