Light emitting device material, light emitting device using...

Details Light emitting device material, light emitting device using... Light emitting device material, light emitting device using...

2005-06-14

2005-06-14

Yamnitzky, Marie (Department: 1774)

Stock material or miscellaneous articles

Composite

Of inorganic material

C428S917000, C313S504000, C546S300000, C546S304000, C546S329000, C549S013000, C549S028000, C549S416000, C549S419000, C549S424000, C549S426000

Reexamination Certificate

active

06905786

ABSTRACT:
A compound represented by the following formula (I):wherein R1, R2and R3each represents an aryl group, a heterocyclic group or an aliphatic hydrocarbon group, provided that at least one of R1, R2and R3represents an aryl group or a heterocyclic group and at least one of the aryl group and heterocyclic group contains a group represented by formula (II), R1, R2and R3may be linked to each other to form a ring,wherein R4, R5and R6, each represents a hydrogen atom or a substituent; X1represents an oxygen atom, a sulfur atom, N—RX1or CRX2RX3; RX1, RX2,RX3each represents a hydrogen atom or a substituent; R4, R5, R6and X1may be linked to each other to form a ring; Y represents an oxygen atom, a sulfur atom, or N—RY1; and RY1represents a hydrogen atom or a substituent.

REFERENCES:
patent: 6451456 (2002-09-01), Kim et al.
patent: 0 866 110 (1998-09-01), None
patent: 7-133482 (1995-05-01), None

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