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1. 发明授权

US5418118A Silver halide color photographic element with improved high density contrast and bright low density colors 失效
标题翻译：卤化银彩色照相材料具有改善的高密度对比度和明亮的低密度颜色
公开(公告)号：US5418118A
公开(公告)日：1995-05-23
申请号：US199035
申请日：1994-02-18
申请人： James L. Edwards , Eric L. Bell , Benjamin T. Chen , Richard L. Parton
发明人： James L. Edwards , Eric L. Bell , Benjamin T. Chen , Richard L. Parton
IPC分类号： G03C7/30 , G03C7/32 , G03C7/392 , G03C1/46
CPC分类号： G03C7/3225 , G03C7/3041 , G03C7/39204
摘要： The invention provides a cyan color producing silver halide emulsion layer or a magenta color producing silver halide emulsion layer wherein said at least one layer has an exposure range of at least 0.6 log E from the point where the instantaneous contrast is 1.0 and wherein the instantaneous contrast of said layer increases as a function of increasing exposure over at least 70 percent of said exposure range.
摘要翻译：本发明提供了产生青色的卤化银乳剂层或品红色产生卤化银乳剂层，其中所述至少一层具有至少0.6log E的曝光范围，其中瞬时对比度为1.0，其中瞬时对比度作为所述曝光范围的至少70％的曝光量增加的函数。

2. 发明授权

US5512103A Silver halide color photography element with improved high density contrast and bright low density colors 失效
标题翻译：卤化银彩色摄影元件具有改进的高密度对比度和明亮的低密度颜色
公开(公告)号：US5512103A
公开(公告)日：1996-04-30
申请号：US374054
申请日：1995-01-19
申请人： James L. Edwards , Eric L. Bell , Benjamin T. Chen , Richard L. Parton
发明人： James L. Edwards , Eric L. Bell , Benjamin T. Chen , Richard L. Parton
IPC分类号： G03C7/00 , G03C7/20 , G03C7/30 , G03C7/32 , G03C7/392
CPC分类号： G03C7/3041 , G03C7/3225 , G03C7/39204
摘要： The invention provides a cyan color producing silver halide emulsion layer or a magenta color producing silver halide emulsion layer wherein said at least one layer has an exposure range of at least 0.6 log E from the point where the instantaneous contrast is 1.0 and wherein the instantaneous contrast of said layer increases as a function of increasing exposure over at least 70 percent of said exposure range.
摘要翻译：本发明提供了产生青色的卤化银乳剂层或品红色产生卤化银乳剂层，其中所述至少一层具有至少0.6log E的曝光范围，其中瞬时对比度为1.0，其中瞬时对比度作为所述曝光范围的至少70％的曝光量增加的函数。

3. 发明授权

US06422736B1 Scalable impeller apparatus for preparing silver halide grains 失效
标题翻译：用于制备卤化银颗粒的可扩展叶轮装置
公开(公告)号：US06422736B1
公开(公告)日：2002-07-23
申请号：US09598573
申请日：2000-06-21
申请人： Michael G. Antoniades , Harold G. Judd , Katrin I. Parsiegla , Benjamin T. Chen , Douglas E. Singer , Donald R. Irwin , Sucheta Tandon , Jess B. Hendricks, III , Heinz E. Stapelfeldt
发明人： Michael G. Antoniades , Harold G. Judd , Katrin I. Parsiegla , Benjamin T. Chen , Douglas E. Singer , Donald R. Irwin , Sucheta Tandon , Jess B. Hendricks, III , Heinz E. Stapelfeldt
IPC分类号： B01F722
CPC分类号： B01F7/168 , B01F7/22
摘要： A mixer for preparing silver halide grains for photographic use has upper and lower impellers housed in a draft tube. The bottom impeller has flat blades for micromixing silver and halide reactants introduced into the bottom of the draft tube. The upper impeller has pitched blades for macromixing the bulk fluid. The impellers are spaced apart at least the distance of their diameters so that the upper and lower impellers operate independently of one another so that micromixing is independent of macromixing. A flow disrupter structurally associated with the draft tube and positioned above the top impeller prevents vortexing of the fluid during mixing. Baffles may be provided in the draft tube to discourage vortexing.
摘要翻译：用于制备用于照相用途的卤化银颗粒的混合器具有容纳在引流管中的上部和下部叶轮。底部叶轮具有用于将引入到引流管底部的银和卤化物反应物微混合的扁平叶片。上部叶轮具有用于使体积流体大块混合的叶片。叶轮至少间隔其直径的距离，使得上部和下部叶轮彼此独立地操作，使得微混合独立于大分子混合。与引流管结构相关并位于顶部叶轮上方的流动扰流器防止混合过程中的流体涡流。可以在引流管中设置挡板以阻止涡旋。

4. 发明授权

US5547827A Iodochloride emulsions containing quinones having high sensitivity and low fog 失效
标题翻译：含有高灵敏度和低雾的醌的碘氯化物乳剂
公开(公告)号：US5547827A
公开(公告)日：1996-08-20
申请号：US361924
申请日：1994-12-22
申请人： Benjamin T. Chen , Roger Lok
发明人： Benjamin T. Chen , Roger Lok
IPC分类号： G03C7/00 , G03C1/00 , G03C1/035 , G03C1/34
CPC分类号： G03C1/34 , G03C1/035
摘要： The invention relates to a radiation sensitive emulsion comprised of a dispersing medium and silver iodochloride grainsWherein the silver iodochloride grainsare partially bounded by {100} crystal faces satisfying the relative orientation and spacing of cubic grains andcontain from 0.05 to 1 mole percent iodide, based on total silver, with maximum iodide concentrations located nearer the surface of the grains than their centerand wherein said emulsion further comprises a quinone comprising ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, and R.sub.4 may be independently substituted or non-substituted alkyl, aryl, alkylaryl, or halogen, carboxy, amido, cyano, methoxy; together R.sub.1 and R.sub.2, R.sub.3 and R.sub.4 may form carbocyclic, heterocyclic, aromatic, or heteroaromatic rings.
摘要翻译：本发明涉及一种由分散介质和碘氯化银颗粒组成的辐射敏感乳液，其中碘氯化银颗粒部分地由满足相对取向和立方晶粒间距的{100}晶面限定，并含有0.05至1摩尔％的碘化物，基于总银，其最大碘化物浓度位于比其中心更靠近颗粒表面的位置，并且其中所述乳液还包含醌，其包含独立取代或未取代的烷基，芳基，烷基芳基或卤素，羧基，酰胺基，氰基，甲氧基 ; R 1和R 2，R 3和R 4可以一起形成碳环，杂环，芳族或杂芳环。

5. 发明授权

US06350567B1 Precipitation of high chloride content silver halide emulsions 失效
标题翻译：高氯化物含量卤化银乳剂的沉淀
公开(公告)号：US06350567B1
公开(公告)日：2002-02-26
申请号：US09414198
申请日：1999-10-07
申请人： Benjamin T. Chen , Roger L. Klaus , Jeri L. Mount
发明人： Benjamin T. Chen , Roger L. Klaus , Jeri L. Mount
IPC分类号： G03C134
CPC分类号： G03C1/34
摘要： A silver halide photographic element comprising a silver halide emulsion which is greater than 50 mole-% silver chloride, said emulsion containing an isothiazolone compound represented by the formula wherein R1 is a substituent; and Z contains the carbon atoms necessary to form a substituted or unsubstituted non-aromatic ring, wherein the isothiazolone compound was added before or during precipitation of the emulsion.
摘要翻译：包含大于50摩尔％氯化银的卤化银乳剂的卤化银照相元件，所述含有由所述式（Ⅳ）代表的异噻唑酮化合物的所述乳液是取代基; 并且Z包含形成取代或未取代的非芳族环所必需的碳原子，其中在乳液沉淀之前或期间加入异噻唑酮化合物。

6. 发明授权

US6033842A Preparation of silver chloride emulsions having iodide containing grains 失效
标题翻译：制备具有含有晶粒的碘化物的氯化银乳剂
公开(公告)号：US6033842A
公开(公告)日：2000-03-07
申请号：US218807
申请日：1998-12-22
申请人： Roger Lok , Benjamin T. Chen , Weimar W. White
发明人： Roger Lok , Benjamin T. Chen , Weimar W. White
IPC分类号： G03C1/015 , G03C1/035 , G03C1/08
CPC分类号： G03C1/015 , G03C1/08 , G03C1/035
摘要： The invention relates to a method of forming a silver halide emulsion comprising adding triiodide during grain formation or sensitization.
摘要翻译：本发明涉及形成卤化银乳剂的方法，其包括在颗粒形成或致敏过程中加入三碘化物。

7. 发明授权

US5380629A Method of making and a photographic element containing bleach accelerator silver salts 失效
标题翻译：制造方法和含有漂白促进剂银盐的照相元件
公开(公告)号：US5380629A
公开(公告)日：1995-01-10
申请号：US40318
申请日：1993-03-30
申请人： Benjamin T. Chen
发明人： Benjamin T. Chen
IPC分类号： G03C1/015 , C07C323/12 , C07C323/25 , C07D295/088 , C07D295/13 , G03C1/005 , G03C1/035 , G03C1/43 , G03C5/00 , G03C5/44 , G03C5/42
CPC分类号： C07D295/088 , C07C323/12 , C07C323/25 , C07D295/13 , G03C1/005 , G03C1/43
摘要： This invention provides a process for preparing a bleach accelerator silver salt dispersion by precipitating a salt of a bleach accelerating compound and a silver salt wherein the vAg is maintained at a predetermined level during the precipitation. This invention further provides a photographic element containing a dispersion of grains of a bleach accelerator silver salt wherein the grains are isomorphic or derived from needle or platelet isomorphic crystals.
摘要翻译：本发明提供了一种通过使漂白剂加速化合物和银盐沉淀而制备漂白促进剂银盐分散体的方法，其中vAg在沉淀期间保持在预定水平。本发明还提供了一种含有漂白促进剂银盐颗粒分散体的照相元件，其中晶粒是同晶的或衍生自针状或血小板同构晶体。

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