Patent ID: 7598667

Claim:
An arylamine compound represented by the following Formula (1): wherein X is a substituted or non-substituted aromatic hydrocarbon group having 6 to 40 carbon atoms or a substituted or non-substituted heterocyclic group having 5 to 40 carbon atoms; Ar 1 , Ar 2 , Ar 3 and Ar 4 each are independently a substituted or non-substituted group having 6 to 40 carbon atoms or a substituted or non-substituted heterocyclic group having 5 to 40 carbon atoms; provided that at least two of Ar 1 , Ar 2 , Ar 3 and Ar 4 is a group represented by the following Formulae (1-1) to (1-15); Ar 1 , Ar 2 , Ar 3 and Ar 4 may be the same as or different from each other, and they may be combined with adjacent ones to form a saturated or unsaturated ring; and p is an integer of 1 or 2: