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. 03, 2017
Filed:
May. 19, 2014
Applicant:
Nissan Chemical Industries, Ltd., Tokyo, JP;
Inventors:
Naoki Nakaie, Funabashi, JP;
Taichi Nakazawa, Funabashi, JP;
Assignee:
NISSAN CHEMICAL INDUSTRIES, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 209/68 (2006.01); C07C 211/54 (2006.01); H01L 51/00 (2006.01); H01L 51/50 (2006.01); H01L 51/52 (2006.01);
U.S. Cl.
CPC ...
H01L 51/0059 (2013.01); C07C 209/68 (2013.01); C07C 211/54 (2013.01); H01L 51/0003 (2013.01); H01L 51/5088 (2013.01); H01L 51/5256 (2013.01);
Abstract
A triphenylamine derivative represented by formula (1) exhibits good solubility in an organic solvent and allows an organic EL element having excellent luminance characteristics to be achieved when formed into a thin film and applied to a positive hole injection layer. (In the formula, Rto Rmutually independently represent a hydrogen atom, a halogen atom, a nitro group, a cyano group, an amino group, an aldehyde group, a hydroxyl group, a thiol group, a carboxylic acid group, and the like; and l, m, and n mutually independently represent an integer 1 to 5.)