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:
Sep. 08, 2015
Filed:
Feb. 27, 2013
Idemitsu Kosan Co., Ltd., Chiyoda-ku, JP;
Yumiko Mizuki, Sodegaura, JP;
Tetsuya Inoue, Sodegaura, JP;
Nobuhiro Yabunouchi, Sodegaura, JP;
Kumiko Hibino, Sodegaura, JP;
Kazuki Nishimura, Sodegaura, JP;
IDEMITSU KOSAN CO., LTD., Chiyoda-ku, JP;
Abstract
A material for organic EL device which includes a compound having a specific structure: an azine ring having a cyano-substituted aromatic hydrocarbon group, an azine ring having a cyano-substituted heterocyclic group, or an azine ring having a cyano group directly bonded to the azine ring. An organic electroluminescence device including an organic thin film layer between a cathode and an anode, wherein the organic thin film layer includes a light emitting layer and at least one layer containing the material for organic electroluminescence device, has a long lifetime.