Sughrue, Mion, Zinn, Macpeak & Seas, PLLC
Sultone compound, quaternary salt compound and methine compound, production process thereof, and silver halide photographic light-sensitive material containing the quaternary salt compound and/or methine compound
 A sultone compound represented by formula (I) or (I'), a quaternary salt compound represented by formula (II) or (II'), a methine compound represented by formula (III) or (III'), production processes thereof and a silver halide photographic light-sensitive material comprising a quaternary salt compound represented by formula (II) or (II') and/or a methine compound represented by formula (III) or (III') are disclosed. 
Fuji Photo Film Co., Ltd.
G G C G G C G G C G G G G C
G03C G03C C09B G03C G03C C09B G03C G03C C09B G03C G03C G03C G03C C09B
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Tetsuya Takanori
Watanabe Hioki