Patent ID: 8118885

Claim:
An azo pigment represented by the following general formula (1), a tautomer of the azo pigment, and a salt or a hydrate thereof: wherein each of R 1 , R 2 , P 1 , P 2 , Q 1 , and Q 2 independently represents a hydrogen atom or a substituent, G represents the non-metallic atoms necessary to complete a 5- to 6-membered heterocyclic group, W represents a substituent capable of binding to the heterocyclic group constituted by G, t represents an integer of from 0 to 4, each of Het-1 and Het-2 independently represents a group selected from the aromatic heterocyclic groups represented by the following general formula (2): wherein each of X, Y, Z, W 0 , W 1 , W 2 , W 3 , and W 4 independently represents a hydrogen atom or a substituent, and * shows the point of attachment to the azo linkage in the general formula (1).