Patent ID: 6660867
Filing Date: 2003-12-09
Classification: C09B,G11B,Y10T

Abstract:
A squarylium compound in a state of a metal complex represented by the general formula (I): wherein, R1 and R2 are the same or different, and represent an alkyl group optionally having a substituent, an aralkyl group optionally having a substituent, an aryl group optionally having a substituent, or a heterocyclic group optionally having a substituent; Q represents a metal atom with a coordination ability; q represents 2 or 3; and A represents an aryl group optionally having a substituent, a heterocyclic group optionally having a substituent, or Y&boxH;CHâ€” wherein Y represents an aryl group optionally having a substituent or a heterocyclic group optionally having a substituent.