Stock material or miscellaneous articles – Composite – Of inorganic material
Reexamination Certificate
2006-01-23
2010-10-19
Tarazano, D. L (Department: 1786)
Stock material or miscellaneous articles
Composite
Of inorganic material
C428S917000, C313S504000, C313S506000, C564S429000, C556S413000, C257S040000
Reexamination Certificate
active
07816017
ABSTRACT:
A aromatic amine derivative having an specific structure having a diphenyl amino group, and two or more of substituent bonding to benzene ring thereof, and in an organic electroluminescence device which comprises at least one organic thin film layer comprising a light emitting layer sandwiched between a pair of electrode consisting of an anode and a cathode, at least one of the organic thin film layer comprises the aromatic amine derivative singly or a component for a mixture thereof. The organic electroluminescence device exhibiting a long lifetime and high current efficiency as well as emitting blue light with high color purity, and also the aromatic amine derivative for realizing the organic EL device are provided.
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Funahashi Masakazu
Kubota Mineyuki
Idemitsu Kosan Co. Ltd.
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Tarazano D. L
Thompson Camie S
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