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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 9991445 B1

PDFFull Text
Date of Patent:
Jun. 05, 2018

Filed:

May. 29, 2014

Heterocyclic compound, material for organic electroluminescence device including the same, and organic electroluminescence device and electronic equipment employing the same

Applicant:

Idemitsu Kosan Co., Ltd., Chiyoda-ku, JP;

Inventors:

Tasuku Haketa, Chiba, JP;

Masahiro Kawamura, Chiba, JP;

Kazuki Nishimura, Chiba, JP;

Yumiko Mizuki, Chiba, JP;

Hirokatsu Ito, Chiba, JP;

Tomoharu Hayama, Chiba, JP;

Assignee:

IDEMITSU KOSAN CO., LTD., Chiyoda-ku, JP;

Attorney:

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

Primary Examiner:

Andrew K Bohaty

Int. Cl.
CPC ...
H01L 51/54 (2006.01); C09K 11/06 (2006.01); H01L 51/00 (2006.01); H01L 51/50 (2006.01);
U.S. Cl.
CPC ...
H01L 51/0054 (2013.01); H01L 51/0067 (2013.01); H01L 51/0052 (2013.01); H01L 51/0061 (2013.01); H01L 51/0071 (2013.01); H01L 51/5012 (2013.01); H01L 51/5016 (2013.01); H01L 51/5056 (2013.01); H01L 51/5072 (2013.01);
Abstract

A heterocyclic compound wherein three five-membered rings are fused to one benzene ring and a saturated or unsaturated ring is fused to each five-membered ring. An organic electroluminescence device includes one or more organic thin film layers between an anode and a cathode. The one or more organic thin film layers include a light emitting layer. At least one layer of the one or more organic thin film layers includes the heterocyclic compound.

Find Patent Forward Citations

Haketa, Tasuku. (2018). Heterocyclic compound, material for organic electroluminescence device including the same, and organic electroluminescence device and electronic equipment employing the same (U.S. Patent No. 9991445). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9991445

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

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