Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
2006-07-07
2011-11-15
Saeed, Kamal (Department: 1626)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
C548S310700
Reexamination Certificate
active
08058450
ABSTRACT:
A novel nitrogen-containing heterocyclic compound having a specific structure and an organic electroluminescence device comprising an anode, a cathode and an organic thin film layer which comprises a single layer or a plurality of layers comprising at least a light emitting layer and is disposed between the anode and the cathode, wherein at least one layer in the organic thin film layer comprises the above nitrogen-containing heterocyclic derivative singly or as a component of a mixture. The organic electroluminescence device exhibits a great luminance of emitted light and a great efficiency of light emission even under application of a low voltage.
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Arakane Takashi
Hosokawa Chishio
Yamamoto Hiroshi
Grazier Nyeemah A
Idemitsu Kosan Co. Ltd.
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Saeed Kamal
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