Back to results
US 6,127,109 AGranted
Silver halide light sensitive photographic material
AssigneeKonica Corporation
InventorKazuyoshi Goan
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeKonica Corporation
InventorKazuyoshi Goan
Estimating the term…
A silver halide light sensitive photographic material is disclosed, comprising a support having thereon hydrophilic colloid layers including a silver halide emulsion layer, wherein (i) at least 50% of the total projected area of silver halide grains contained in the emulsion layer is accounted for by tabular grains having an aspect ratio of 3 to 15, (ii) the tabular grains each comprising an inner region which accounts for 70% by volume of the grain and a residual outer region, the outer region containing at least 75% of total iodide contained in the grain, and (iii) the tabular grains each having an outermost layer, a halide content distribution among the tabular grains with respect to the outermost layer being not more than 20%; and wherein at least one of the hydrophilic colloid layers contains a sulfur containing compound, which has a water-solubilizing group.
A silver halide light sensitive photographic material comprising a support having thereon hydrophilic colloid layers including a silver halide emulsion layer, wherein (i) at least 50% of the total projected area of silver halide grains contained in the emulsion layer is accounted for by tabular grains having an aspect ratio of 3 to 15, (ii) said tabular grains each comprising an inner region which accounts for 70% by volume of the grain and a residual outer region, said outer region containing at least 75% of total iodide contained in the grain, and (iii) said tabular grains each having an outermost layer, a halide content distribution among the tabular grains with respect to the outermost layer being not more than 20%;
Dependencies are inferred from the claim text.