发明名称 |
Silver halide photographic material comprising two kinds of monodisperse emulsions differing in mean grain size |
摘要 |
A silver halide photographic material comprising at least one negative type silver halide emulsion layer coated on a support, said emulsion comprising two kinds of monodisperse emulsions each having a means grain sizes of not more than 0.5 micron and, differing in mean grain size from each other at least by 0.1 micron, and said photographic material further comprising a hydrazine derivative in at least one photographic layer, whereby negative images of high density and very high contrast can be obtained with a high photographic speed and without black spots.
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申请公布号 |
US4786587(A) |
申请公布日期 |
1988.11.22 |
申请号 |
US19870115645 |
申请日期 |
1987.10.26 |
申请人 |
FUJI PHOTO FILM CO., LTD. |
发明人 |
KUWABARA, KEN-ICHI |
分类号 |
G03C1/005;G03C1/015;G03C1/035;G03C1/06;(IPC1-7):G03C1/06;G03C1/02 |
主分类号 |
G03C1/005 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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