Patent ID: 6479230
Filing Date: 2002-11-12
Classification: G03C

Abstract:
A silver halide photographic light-sensitive emulsion containing tabular silver halide grains wherein,50% or more of the total projected area of all the silver halide grains are occupied by tabular grains each having {111} faces as parallel major faces and an aspect ratio of 2 or more and including 10 or more dislocation lines per grain; and at least one compound represented by formula (1) or (2) below is contained in said emulsion: wherein A represents an atomic group required to form a nitrogen-containing hetero ring; each of B and E independently represents a divalent group containing at least one divalent group selected from the group consisting of alkylene, arylene, â€”Oâ€”, â€”Sâ€”, â€”SO2â€”, â€”CO2â€”, and â€”N(R5)-, wherein R5 represents a hydrogen atom, an alkyl group, or an aryl group, provided that each of â€”Oâ€”, â€”Sâ€”, â€”SO2â€”, â€”CO2â€”, and â€”N(R5)- is adjacent to and connects with alkylene or arylene at both ends thereof, and that B does not bond to the nitrogen atom which forms the nitrogen-containing hetero ring and which bonds to the carbon atom by a double bond; each of R1 and R2 independently represents an alkyl group or an aralkyl group; each of R3 and R4 represents a substituent; and X represents an anion group, provided that no X exists in the case of intramolecular salt.