发明授权
- 专利标题: Silver halide photographic material and image formation method
- 专利标题(中): 卤化银照相材料和成像方法
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申请号: US09628652申请日: 2000-07-28
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公开(公告)号: US06368780B1公开(公告)日: 2002-04-09
- 发明人: Kiyoshi Takeuchi , Taiji Katsumata , Satoshi Sano , Yuki Mizukawa
- 申请人: Kiyoshi Takeuchi , Taiji Katsumata , Satoshi Sano , Yuki Mizukawa
- 优先权: JP11-217821 19990730; JP2000-080646 20000322
- 主分类号: G03C108
- IPC分类号: G03C108
摘要:
A silver halide photographic material excellent in color generation, color reproduction and image fastness, which comprises at least one coupler represented by the following formula: wherein R1 represents an alkyl group which may be optionally substituted, with the proviso that an alkyl group substituted by a halogen atom alone and an alkyl group substituted by a halogen atom and an aryl group are excluded from R1; R2 and R3, which may be the same or different, each represents a hydrogen atom or a substituent; and X1 represents a group which can leave by coupling with an oxidation product of a color developing agent; and an image formation method using the same.
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