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:
Apr. 18, 2014
Applicant:
Tosoh Corporation, Yamaguchi, JP;
Inventors:
Yuji Oka, Ayase, JP;
Nobumichi Arai, Ayase, JP;
Yuuichi Miyashita, Kanagawa, JP;
Tadahiro Yotsuya, Kanagawa, JP;
Kana Fujita, Kanagawa, JP;
Naoki Uchida, Kanagawa, JP;
Keisuke Nomura, Kanagawa, JP;
Tsuyoshi Tanaka, Kanagawa, JP;
Assignee:
TOSOH CORPORATION, Yamaguchi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 251/24 (2006.01); C07D 401/10 (2006.01); C07D 401/14 (2006.01); C07D 403/10 (2006.01); C07D 403/14 (2006.01); H01L 51/50 (2006.01); H01L 51/00 (2006.01); C07D 239/26 (2006.01); C07D 213/22 (2006.01);
U.S. Cl.
CPC ...
H01L 51/0067 (2013.01); C07D 213/22 (2013.01); C07D 239/26 (2013.01); C07D 251/24 (2013.01); C07D 401/10 (2013.01); C07D 401/14 (2013.01); C07D 403/10 (2013.01); C07D 403/14 (2013.01); H01L 51/0052 (2013.01); H01L 51/0054 (2013.01); H01L 51/0058 (2013.01); H01L 51/0072 (2013.01); H01L 51/5072 (2013.01); H01L 51/5092 (2013.01);
Abstract
A novel heterocyclic compound for an organic electroluminescent device excellent in long service life and light-emitting characteristics is provided. A cyclic azine compound has at least one substituent (substituent B) selected from a specific group.