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. 22, 2019
Filed:
Jul. 13, 2012
Applicants:
Tetsuya Nakagawa, Fukuoka, JP;
Chihaya Adachi, Fukuoka, JP;
Inventors:
Tetsuya Nakagawa, Fukuoka, JP;
Chihaya Adachi, Fukuoka, JP;
Assignee:
KYULUX, INC., Fukuoka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/00 (2006.01); C07C 255/58 (2006.01); C07D 519/00 (2006.01); C07D 209/86 (2006.01); C09K 11/06 (2006.01); H05B 33/14 (2006.01); H01L 51/50 (2006.01);
U.S. Cl.
CPC ...
H01L 51/0056 (2013.01); C07C 255/58 (2013.01); C07D 209/86 (2013.01); C07D 519/00 (2013.01); C09K 11/06 (2013.01); H01L 51/5012 (2013.01); H05B 33/14 (2013.01); C09K 2211/1011 (2013.01); H01L 51/0072 (2013.01);
Abstract
A delayed fluorescence material comprising a compound represented by the general formula below. At least one of Rto Rrepresent an electron-donating group and the others represent a hydrogen atom; at least one of Rto Rrepresent an electron-withdrawing group and the others represent a hydrogen atom.