Patent ID: 8603370

Claim:
A near-infrared absorptive liquid dispersion, which contains a near-infrared absorptive compound represented by formula (1) that is dispersed in a form of fine particles in a dispersing medium: wherein R 1a and R 1b may be the same or different, and each independently represent an aryl group or a heteroaryl group, each of which has an alkoxy group in which an alkyl moiety of the alkoxy group is a branched alkyl group; R 2 represents a cyano group and R 3 represents a benzothiazolyl group or a naphthothiazolyl group; and R 4 represents a hydrogen atom, an alkyl group, an aryl group, a heteroaryl group, a substituted boron, or a metal atom, and R 4 may be covalently bonded or coordinately bonded to at least one among R 1a , R 1b and R 3 .