Silver halide photographic emulsion
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United States of America Patent
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Sep 23, 2003
Grant Date -
Apr 3, 2003
app pub date -
Mar 25, 2002
filing date -
Mar 30, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A silver halide photographic emulsion is disclosed, comprising silver halide grains wherein at least 80% of a total grain projected area is accounted for by tabular grains, the tabular grains having an average aspect ratio of at least 12, a variation coefficient of grain diameter of less than 30%, an average overall surface iodide content of 5 to 15 mol % and an average surface iodide content in the vicinity of corners of the grains of less than 3 mol %; and the tabular grains further having a shallow electron trap center in the peripheral region of the grain.
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