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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.:

US 8945724 B1

PDFFull Text
Date of Patent:
Feb. 03, 2015

Filed:

Dec. 24, 2008

Nitrogen-containing heterocyclic derivative and organic electroluminescent device using the same

Applicants:

Hiroshi Yamamoto, Chiba, JP;

Takashi Arakane, Chiba, JP;

Inventors:

Hiroshi Yamamoto, Chiba, JP;

Takashi Arakane, Chiba, JP;

Assignee:

Idemitsu Kosan Co., Ltd., Tokyo, JP;

Attorney:

Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Gregory Clark

Int. Cl.
CPC ...
H01L 51/54 (2006.01); C09K 11/06 (2006.01); C07D 235/08 (2006.01); C07D 235/18 (2006.01); C07D 401/04 (2006.01); C07D 401/10 (2006.01); C07D 403/10 (2006.01); C07D 471/04 (2006.01); H01L 51/00 (2006.01); H05B 33/14 (2006.01); H01L 51/50 (2006.01);
U.S. Cl.
CPC ...
C09K 11/06 (2013.01); C07D 235/08 (2013.01); C07D 235/18 (2013.01); C07D 401/04 (2013.01); C07D 401/10 (2013.01); C07D 403/10 (2013.01); C07D 471/04 (2013.01); H01L 51/0072 (2013.01); H05B 33/14 (2013.01); C09K 2211/1007 (2013.01); C09K 2211/1011 (2013.01); C09K 2211/1044 (2013.01); H01L 51/0052 (2013.01); H01L 51/0054 (2013.01); H01L 51/0055 (2013.01); H01L 51/0058 (2013.01); H01L 51/006 (2013.01); H01L 51/5012 (2013.01); H01L 51/5048 (2013.01); H01L 51/5092 (2013.01); Y10S 428/917 (2013.01);
Abstract

A novel nitrogen-containing heterocyclic derivative having a specific structure. An organic electroluminescence device comprises an organic thin-film layer which is disposed between a cathode and an anode and comprises one or more layers having a light emitting layer. At least one layer of the organic thin-film layer comprises the nitrogen-containing heterocyclic derivative. The organic electroluminescence device exhibits a high luminance and a high luminous efficiency even at a low driving voltage.

Find Patent Forward Citations

Yamamoto, Hiroshi. (2015). Nitrogen-containing heterocyclic derivative and organic electroluminescent device using the same (U.S. Patent No. 8945724). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8945724

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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