Organic compounds -- part of the class 532-570 series – Organic compounds – Amino nitrogen containing
Reexamination Certificate
2005-06-02
2009-02-10
Davis, Brian J (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Amino nitrogen containing
C428S917000
Reexamination Certificate
active
07488849
ABSTRACT:
According to the present invention, a material that can be used as a hole transporting material is provided. Further, a material that is easily kept in a non-crystalline state and can be used as a hole transporting material is also provided. One embodiment of the present invention is a compound represented by a general formula (1). In the general formula (1), R1is hydrogen or an alkyl group having 1-4 carbon atoms. Further, one embodiment according to the present invention is a hole transporting material containing the compound represented by the general formula (1).
REFERENCES:
patent: 7164155 (2007-01-01), Yamazaki et al.
patent: 7226332 (2007-06-01), Arai et al.
patent: 2004/0263066 (2004-12-01), Abe et al.
patent: 2006/0061265 (2006-03-01), Kawamura et al.
patent: WO 03/048225 (2003-06-01), None
patent: WO 2004/020373 (2004-03-01), None
Davis Brian J
Fish & Richardson P.C.
Semiconductor Energy Laboratory Co,. Ltd.
LandOfFree
Benzidine derivative, and light-emitting device and electric... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Benzidine derivative, and light-emitting device and electric..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Benzidine derivative, and light-emitting device and electric... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4079416