Stock material or miscellaneous articles – Composite – Of inorganic material
Reexamination Certificate
2007-06-26
2007-06-26
Dye, Rena (Department: 1774)
Stock material or miscellaneous articles
Composite
Of inorganic material
C428S917000, C313S504000, C313S506000, C564S426000
Reexamination Certificate
active
10483990
ABSTRACT:
A novel aromatic compound represented by following general formula (I):among X1to X20in general formula (I), (1) at least four each independently represent a linear or branched alkoxyl group having 1 to 6 carbon atoms, and others each represent hydrogen atom; (2) at least one represents a linear or branched alkyl group having 1 to 6 carbon atoms, at least one represents a linear or branched alkoxyl group having 1 to 6 carbon atoms, a total of a number of the alkyl group and a number of the alkoxyl group being 4 or greater, and others each represent hydrogen atom; (3) at least six each independently represent a linear or branched alkyl group having 1 to 6 carbon atoms, and others each represent hydrogen atom; or (4) at least four each independently represent a linear or branched alkyl group having 1 to 6 carbon atoms, two among said alkyl groups having 3 to 6 carbon atoms, and others each represent hydrogen atom; and an organic electroluminescence device using the aromatic compound, are provided. The device exhibits excellent purity of color, provides great luminance of emitted light and efficiency of light emission even at a small driving voltage, has a long lifetime and emits reddish light.
REFERENCES:
patent: 6803120 (2004-10-01), Fukuoka et al.
patent: 6815090 (2004-11-01), Tagami et al.
patent: 6866947 (2005-03-01), Fukuoka et al.
patent: 01/23497 (2001-04-01), None
patent: 01/48116 (2001-07-01), None
patent: 01/76323 (2001-10-01), None
patent: 02/20693 (2002-03-01), None
patent: 02/52904 (2002-07-01), None
Arakane Takashi
Iwakuma Toshihiro
Kusumoto Tadashi
Dye Rena
Idemitsu Kosan Co. Ltd.
Petroleum Energy Center, A Juridical Incorporated Foundation
Thompson C
LandOfFree
Aromatic compounds and organic electroluminescent devices... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Aromatic compounds and organic electroluminescent devices..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Aromatic compounds and organic electroluminescent devices... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3823825