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    • 6. 发明专利
    • Silver halide photographic emulsion and silver halide photographic sensitive material using the same
    • 银色摄影乳液和银色摄影感光材料
    • JP2006251324A
    • 2006-09-21
    • JP2005067305
    • 2005-03-10
    • Fuji Photo Film Co Ltd富士写真フイルム株式会社
    • MIYAMOTO YASUSHI
    • G03C1/035G03C1/08G03C1/09
    • G03C1/0051G03C2001/0055G03C2001/03552
    • PROBLEM TO BE SOLVED: To provide a silver halide photographic emulsion having high sensitivity and having excellent latent image preservability, and a silver halide photographic sensitive material using the same. SOLUTION: In the silver halide photographic emulsion, ≥70% of the total projected area of silver halide grains is occupied by silver halide grains satisfying the following requirements (a)-(d); (a) the silver halide grains consist of tabular silver halide host grains each having two main planes parallel to each other and an aspect ratio of ≥12 and silver halide protrusions epitaxially joined to host grain surfaces, (b) both the host grains and the protrusions have a silver bromide content of ≥70 mol%, (c) when an average silver iodide content of all the grains is represented by I mol%, regions of 8% of outer shell of the host grains (based on the amount of silver in the host grains) have an average silver iodide content of ≤(I+12) mol%, and (d) the protrusions contain a pseudo-halide. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供具有高灵敏度和优异潜像保存性的卤化银照相乳剂和使用其的卤化银照相感光材料。 解决方案:在卤化银照相乳剂中,卤化银颗粒总投影面积的70%占卤化银颗粒,满足以下要求(a) - (d); (a)卤化银颗粒由片状卤化银主体颗粒组成,每个平板状卤化银主体颗粒各自具有彼此平行的两个主平面和≥12的纵横比和外延连接到主体颗粒表面的卤化银突起,(b)主体颗粒和 突起的溴化银含量≥70摩尔%,(c)当所有晶粒的平均碘化银含量以I摩尔%表示时,主体颗粒的外壳的8%的区域(以银的量计) 在主体颗粒中)的平均碘化银含量≤(I + 12)mol%,(d)突起含有假卤化物。 版权所有(C)2006,JPO&NCIPI
    • 10. 发明专利
    • Silver halide color photographic sensitive material
    • 银色彩色摄影感光材料
    • JP2005099370A
    • 2005-04-14
    • JP2003332332
    • 2003-09-24
    • Fuji Photo Film Co Ltd富士写真フイルム株式会社
    • MIKI MASAAKI
    • G03C7/20G03C1/035G03C1/12G03C1/43G03C1/74G03C7/30G03C7/38G03C7/392
    • G03C7/3924G03C1/0051G03C7/3022G03C7/3041G03C7/3825G03C2001/03564G03C2007/3025
    • PROBLEM TO BE SOLVED: To provide a silver halide color photographic sensitive material having high sensitivity and exhibiting little degradation of sharpness even with a small amount of coating silver. SOLUTION: The silver halide color photographic sensitive material has, on a support, at least one each of blue-, green- and red-sensitive silver halide emulsion layers which have (i) a specific sensitivity of ≥350 and (ii) the coating weight of silver of ≤7 g/m 2 , wherein (iii) one of the color-sensitive layers includes two or more silver halide emulsion layers different from each other in photographic sensitivity, and the layer having the highest sensitivity of the emulsion layers contains: plate-like silver halide grains having an aspect ratio of ≥8 in an amount of ≥70% of the total grain projected area; and normal crystal silver halide grains having an equivalent spherical diameter of 0.1 to 0.5 μm in an amount of 0.5 to 5% of the total grain projected area. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供具有高灵敏度的卤化银彩色感光材料,即使使用少量的镀银也显示出很小的锐度劣化。 解决方案:卤化银彩色感光材料在载体上具有至少一种蓝,绿和红敏感的卤化银乳剂层,其具有(i)≥350的特异性灵敏度和(ii )银的涂层重量≤7g/ m 2,其中(iii)感光层之一包括在感光敏感度上彼此不同的两个或更多个卤化银乳剂层,并且 具有乳液层的最高灵敏度的层包含:长宽比≥8的板状卤化银颗粒的总颗粒投影面积的≥70%; 和正常的结晶卤化银颗粒,其总的晶粒投影面积的0.5至5%,其等效球形直径为0.1至0.5μm。 版权所有(C)2005,JPO&NCIPI