公开(公告)号：US07183024B2

公开(公告)日：2007-02-27

申请号：US10460129

申请日：2003-06-12

申请人： Michael R. Roberts ,  Paul B. Gilman ,  Donald L. Black ,  Kurt M. Schroeder

发明人： Michael R. Roberts ,  Paul B. Gilman ,  Donald L. Black ,  Kurt M. Schroeder

IPC分类号： G03C5/16 ,  G03C11/00

CPC分类号： G03C1/49881 ,  G03C1/0051 ,  G03C1/49809 ,  G03C1/49818 ,  G03C1/49845 ,  G03C5/16 ,  G03C2005/168 ,  Y10S430/156 ,  Y10S430/158 ,  Y10S430/165 ,  Y10S430/167

摘要： The present invention is directed to a method of forming a positive image in a photothermographic element comprising a potentially negative-working emulsion wherein fog density development is imagewise inhibited in exposed areas of the image upon thermal development. In one embodiment of the invention, a density-inhibiting agent is released during thermal development which agent inhibits the thermal development of unexposed silver salts in the exposed areas relative to the unexposed areas. The method preferably comprises imagewise exposing the film with a non-solarizing amount of radiation/energy to form a latent image and thermally developing the latent image in a single development step to produce a positive image in the element. The present invention is also directed to a photothermographic element that can be used in the present process in which a positive image characterized by high speed and discrimination is formed when exposed and thermally heated above 150° C.

摘要翻译： 本发明涉及在光热敏成像元件中形成正像的方法，该光热敏成像元件包括潜在的负性乳液，其中在热显影时图像的暴露区域中的雾密度显影成像抑制。 在本发明的一个实施方案中，在热显影期间释放密度抑制剂，其中该试剂抑制相对于未曝光区域的曝光区域中未曝光的银盐的热显影。 该方法优选地包括以非日化量的辐射/能量成像曝光所述膜以形成潜像并在单个显影步骤中热显影所述潜像，以在所述元件中产生正像。 本发明还涉及一种光热敏成像元件，其可用于本发明的曝光和热加热至150℃以上形成以高速和鉴别为特征的正像。

公开(公告)号：US06265962B1

公开(公告)日：2001-07-24

申请号：US09608340

申请日：2000-06-29

申请人： Donald L. Black ,  Dale Yones

发明人： Donald L. Black ,  Dale Yones

IPC分类号： H04Q522

CPC分类号： G06K7/10039 ,  G06K7/0008

摘要： Communications between an RFID interrogator and an RFID transponder require that no more than one transponder be present in the reading range of the interrogator and transmitting into motion at any given time. If multiple transponders are in the field, then a collision between the return signals of the transponders occurs, rendering the signals unreadable. A method to resolve the collisions and allow for accurate transmission of each transponder's data is given. This method is especially effective over other methods when the transponder is a read-only type of device, whereby there is no communications interrogator on board the read-only transponder.

摘要翻译： RFID询问器和RFID应答器之间的通信要求在询问器的读取范围内不超过一个应答器，并在任何给定的时间发送运动。 如果多个应答器在现场，则发生应答器的返回信号之间的冲突，使得信号不可读。 给出了一种解决冲突并允许准确传输每个应答器数据的方法。 当应答器是只读类型的设备时，该方法对于其他方法是特别有效的，由此在只读应答器上没有通信询问器。

公开(公告)号：US5582965A

公开(公告)日：1996-12-10

申请号：US451881

申请日：1995-05-26

申请人： Joseph C. Deaton ,  Richard L. Daubendiek ,  Donald L. Black ,  Timothy R. Gersey ,  Joseph G. Lighthouse ,  Myra T. Olm ,  Xin Wen ,  Robert D. Wilson

发明人： Joseph C. Deaton ,  Richard L. Daubendiek ,  Donald L. Black ,  Timothy R. Gersey ,  Joseph G. Lighthouse ,  Myra T. Olm ,  Xin Wen ,  Robert D. Wilson

IPC分类号： G03C1/005 ,  G03C1/08 ,  G03C1/46 ,  G03C1/035

CPC分类号： G03C1/0051 ,  G03C1/08 ,  G03C1/46

摘要： A chemically and spectrally sensitized ultrathin tabular grain emulsion is disclosed including tabular grains (a) having {111} major faces, (b) containing greater than 70 mole percent bromide and at least 0.25 mole percent iodide, based on silver, (c) accounting for greater than 90 percent of total grain projected area, (d) exhibiting an average equivalent circular diameter of at least 0.7 .mu.m, and (e) exhibiting an average thickness of less than 0.07 .mu.m.It has been observed that faster rates of development, relatively thinner tabular grains under comparable conditions of preparation, increased contrast and improvements in speed-granularity relationships can be realized when (1) the tabular grains contain less than 10 mole percent iodide and (2) the surface chemical sensitization sites include epitaxially deposited silver halide protrusions of a face centered cubic crystal lattice structure of the rock salt type forming epitaxial junctions with the tabular grains, the protrusions (a) being restricted to those portions of the tabular grains located nearest peripheral edges of and accounting for less than 50 percent of the {111} major faces of the tabular grains, (b) containing a silver chloride concentration at least 10 mole percent higher than that of the tabular grains, and (c) including a higher iodide concentration than those portions of the tabular grains extending between the {111} major faces and forming epitaxial junctions with the protrusions.A photographic element is disclosed in which an ultrathin tabular grain emulsion as described above is coated over an emulsion layer intended to record visible light.

摘要翻译： 公开了一种化学和光谱增感的超薄片状颗粒乳液，其包括具有{111}主面的片状颗粒（a），（b）含有大于70摩尔百分比的溴和至少0.25摩尔百分数的碘，基于银，（c） 占总颗粒投影面积的90％以上，（d）平均当量圆直径至少为0.7μm，（e）平均厚度小于0.07μm。 已经观察到，当（1）片状颗粒含有小于10摩尔％的碘化物时，可以实现更快的发展速度，相当的制备条件下相对较薄的片状颗粒增加对比度和速度 - 粒度关系的改善，（2） 表面化学增感部位包括与片状晶粒形成外延结的岩盐型的面心立方晶格结构的外延沉积的卤化银突起，突起（a）限于位于最近周边边缘的片状颗粒的那些部分 占片状颗粒{111}主面的不到50％，（b）含有比片状颗粒高至少10摩尔％的氯化银浓度，（c）包含较高的碘化物浓度 比在{111}主面之间延伸并形成外延结的片状颗粒的那些部分 突起。 公开了一种照相材料，其中将如上所述的超薄片状颗粒乳剂涂覆在旨在记录可见光的乳剂层上。

公开(公告)号：US5219720A

公开(公告)日：1993-06-15

申请号：US792119

申请日：1991-11-14

申请人： Donald L. Black ,  Robert D. Wilson

发明人： Donald L. Black ,  Robert D. Wilson

IPC分类号： G03C1/005 ,  G03C1/18

CPC分类号： G03C1/0051 ,  G03C1/18

摘要： The invention is generally accomplished by providing a tabular-grain silver halide emulsion in which at least 50 percent of the total grain projected area is accounted for by tabular grains having a mean diameter of at least 0.6 micrometer and a spacing between at least two parallel twin planes of less than about 0.011 micrometer. In a preferred form, at least 90 percent of the total grain projected area is accounted for by the tabular grains of the invention having a mean diameter of at least 0.6 micrometer and a spacing between at least two parallel twin planes of less than 0.012 micrometer.

摘要翻译： 本发明通常通过提供一种片状粒状卤化银乳剂来实现，其中总颗粒投影面积的至少50％由具有至少0.6微米的平均直径和至少两个平行双峰之间的间隔的片状颗粒 平面小于约0.011微米。 在优选形式中，总颗粒投影面积的至少90％是由平均直径至少为0.6微米的平板状颗粒和小于0.012微米的至少两个平行双面之间的间隔来计算的。

公开(公告)号：US5614358A

公开(公告)日：1997-03-25

申请号：US441489

申请日：1995-05-15

申请人： Robert D. Wilson ,  Myra T. Olm ,  Richard L. Daubendiek ,  Donald L. Black ,  Joseph C. Deaton ,  Timothy R. Gersey ,  Joseph G. Lighthouse ,  Xin Wen

发明人： Robert D. Wilson ,  Myra T. Olm ,  Richard L. Daubendiek ,  Donald L. Black ,  Joseph C. Deaton ,  Timothy R. Gersey ,  Joseph G. Lighthouse ,  Xin Wen

IPC分类号： G03C1/005 ,  G03C1/08 ,  G03C1/46 ,  G03C1/09 ,  G03C1/035

CPC分类号： G03C1/08 ,  G03C1/0051 ,  G03C1/46

摘要： A chemically and spectrally sensitized ultrathin tabular grain emulsion is disclosed including tabular grains (a) having {111} major faces, (b) containing greater than 70 mole percent bromide, based on silver, (c) accounting for greater than 90 percent of total grain projected area, (d) exhibiting an average equivalent circular diameter of at least 0.7 .mu.m, and (e) exhibiting an average thickness of less than 0.07 .mu.m.It has been observed that increased speed and contrast as well as improvements in speed-granularity relationships can be realized when the surface chemical sensitization sites include epitaxially deposited silver halide protrusions forming epitaxial junctions with the tabular grains, the protrusions (a) being located on up to 50 percent of the surface area of the tabular grains, (b) having a higher overall solubility than at least that portion of the tabular grains forming epitaxial junctions with the protrusions, and (c) forming a face centered cubic crystal lattice.In further improving photographic performance by incorporating a photographically useful dopants, it has been observed that iridium placed in the ultrathin tabular grains and a shallow electron trapping site providing dopant placed in the silver halide protrusions can together increase photographic speed and reduce high intensity reciprocity failure.

摘要翻译： 公开了化学和光谱增感的超薄片状颗粒乳剂，其包括具有{111}主面的片状颗粒（a），（b）基于银含有大于70摩尔％的溴化物，（c）占总量的90％以上 （d）平均当量圆直径至少为0.7μm，（e）平均厚度小于0.07μm。 已经观察到，当表面化学增感部位包括形成与片状颗粒的外延结的外延淀积的卤化银突起时，可以实现速度和对比度的提高以及速度 - 粒度关系的改善，突起（a）位于上面 至（b）具有比至少部分片状颗粒形成与突起外延结合的整体溶解度更好的表面积，（c）形成面心立方晶格。 通过掺入摄影有用的掺杂剂来进一步提高照相性能，已经观察到放置在超薄片状晶粒中的铱和提供放置在卤化银突起中的掺杂物的浅电子俘获位置可以一起增加照相速度并降低高强度互易失效。

公开(公告)号：US5567580A

公开(公告)日：1996-10-22

申请号：US536898

申请日：1995-09-29

申请人： David E. Fenton ,  Lucius S. Fox ,  Donald L. Black

发明人： David E. Fenton ,  Lucius S. Fox ,  Donald L. Black

IPC分类号： G03C1/035 ,  G03C1/00 ,  G03C1/005 ,  G03C1/07 ,  G03C1/12 ,  G03C1/18 ,  G03C1/46 ,  G03C5/17

CPC分类号： G03C1/46 ,  G03C1/0051 ,  G03C1/07 ,  G03C1/12 ,  G03C5/17 ,  G03C1/18 ,  Y10S430/167

摘要： A radiographic element for medical diagnostic imaging is disclosed comprised of a transparent support and first and second silver halide emulsion layer units coated on opposite sides of the film support, each emulsion layer unit being comprised of a silver iodohalide tabular grain emulsion containing less than 5 mole percent iodide, based on silver. An improvement in speed in relation to granularity is obtained by the presence of tabular grains having {111} major faces, containing a maximum surface iodide concentration along their edges, and a lower iodide concentration within their corners than elsewhere along their edges.

摘要翻译： 公开了用于医​​学诊断成像的射线照相元件，其包括透明支撑体和涂覆在膜支撑体的相对侧上的第一和第二卤化银乳剂层单元，每个乳剂层单元由含有少于5摩尔的碘代碘酸银片状颗粒乳剂 基于银的碘化物百分比。 通过存在具有{111}主面，沿其边缘含有最大表面碘化物浓度的片状颗粒的存在，以及在它们的边缘内的其他角落内的较低的碘化物浓度，沿着其边缘的存在获得了与颗粒度相关的速度的改善。

公开(公告)号：US5536632A

公开(公告)日：1996-07-16

申请号：US441132

申请日：1995-05-15

申请人： Xin Wen ,  Richard L. Daubendiek ,  Donald L. Black ,  Joseph C. Deaton ,  Timothy R. Gersey ,  Joseph G. Lighthouse ,  Myra T. Olm ,  Robert D. Wilson

发明人： Xin Wen ,  Richard L. Daubendiek ,  Donald L. Black ,  Joseph C. Deaton ,  Timothy R. Gersey ,  Joseph G. Lighthouse ,  Myra T. Olm ,  Robert D. Wilson

IPC分类号： G03C1/005 ,  G03C1/08 ,  G03C1/46 ,  G03C1/035 ,  G03C1/09

CPC分类号： G03C1/0051 ,  G03C1/08 ,  G03C1/46

摘要： A chemically and spectrally sensitized ultrathin tabular grain emulsion is disclosed including tabular grains (a) having {111} major faces, (b) containing greater than 70 mole percent bromide, based on silver, (c) accounting for greater than 90 percent of total grain projected area, (d) exhibiting an average equivalent circular diameter of at least 0.7 .mu.m, and (e) exhibiting an average thickness of less than 0.07 .mu.m.Improved sensitivity is observed when the surface chemical sensitization sites include silver halide protrusions of a face centered cubic crystal lattice structure forming epitaxial junctions with the tabular grains and having a higher overall solubility than at least that portion of the tabular grains forming epitaxial junctions with the protrusions and a sensitivity enhancing combination of dopants are contained in the silver halide grains including a first sensitivity enhancing dopant capable of providing shallow electron trapping sites and a second sensitivity enhancing selenium dopant. To further enhance sensitivity, one of the sensitivity enhancing dopants is restricted to the tabular grains while the other is restricted to the silver halide epitaxy.

摘要翻译： 公开了化学和光谱增感的超薄片状颗粒乳剂，其包括具有{111}主面的片状颗粒（a），（b）基于银含有大于70摩尔％的溴化物，（c）占总量的90％以上 （d）平均当量圆直径至少为0.7μm，（e）平均厚度小于0.07μm。 当表面化学增感部位包括面心立方晶格结构的卤化银突起形成与片状颗粒形成外延结和具有比至少部分形成与凸起的外延结的片状颗粒更高的总体溶解度时，观察到灵敏度提高 并且包含掺杂剂的敏感度增强组合包含在包含能够提供浅电子捕获位点的第一灵敏度增强掺杂剂和第二灵敏度增强硒掺杂剂的卤化银颗粒中。 为了进一步提高灵敏度，灵敏度增强掺杂剂之一限于片状晶粒，而另一种限于卤化银外延。

公开(公告)号：US5494789A

公开(公告)日：1996-02-27

申请号：US359251

申请日：1994-12-19

申请人： Richard L. Daubendiek ,  Donald L. Black ,  Joseph C. Deaton ,  Timothy R. Gersey ,  Joseph G. Lighthouse ,  Myra T. Olm ,  Xin Wen ,  Robert D. Wilson

发明人： Richard L. Daubendiek ,  Donald L. Black ,  Joseph C. Deaton ,  Timothy R. Gersey ,  Joseph G. Lighthouse ,  Myra T. Olm ,  Xin Wen ,  Robert D. Wilson

IPC分类号： G03C1/00 ,  G03C1/005 ,  G03C1/015 ,  G03C1/035 ,  G03C1/07 ,  G03C1/08 ,  G03C1/09 ,  G03C1/10 ,  G03C1/46 ,  G03C7/00

CPC分类号： G03C1/08 ,  G03C1/0051 ,  G03C1/46

摘要： An improved spectrally sensitized ultrathin tabular grain emulsion is disclosed in which tabular grains (a) having {111} major faces, (b) containing greater than 70 mole percent bromide, based on silver, (c) accounting for greater than 90 percent of total grain projected area, (d) exhibiting an average equivalent circular diameter of at least 0.7 .mu.m, (e) exhibiting an average thickness of less than 0.07 .mu.m, and (f) having latent image forming chemical sensitization sites on the surfaces of the tabular grains, are spectrally sensitized and improved by employing in forming the surface chemical sensitization sites at least one silver salt epitaxially located on the tabular grains. A photographic element is disclosed comprised of a support, a first silver halide emulsion layer coated on the support and sensitized to produce a photographic record when exposed to specular light within the minus blue visible wavelength region of from 500 to 700 nm, a second silver halide emulsion layer capable of producing a second photographic record coated over the first silver halide emulsion layer to receive specular minus blue light intended for the exposure of the first silver halide emulsion layer, the second silver halide emulsion layer being capable of acting as a transmission medium for the delivery of at least a portion of the minus blue light intended for the exposure of the first silver halide emulsion layer in the form of specular light, wherein the second silver halide emulsion layer is comprised of the improved spectrally sensitized ultrathin tabular grain emulsion of the invention.

摘要翻译： 公开了一种改进的光谱增感超薄片状颗粒乳剂，其中具有{111}主面的片状颗粒（a）（b）含有大于70摩尔百分比的溴化银，基于银，（c）占总量的90％以上 颗粒投影面积，（d）平均当量圆直径至少为0.7μm，（e）平均厚度小于0.07μm，（f）在该表面上具有潜像形成化学增感点 片状颗粒通过在表面化学增感位点上形成至少一个外延位于片状颗粒上的银盐而被光谱增感和改进。 公开了一种照相元件，其包括支撑体，涂覆在载体上的第一卤化银乳剂层，并且当暴露于500-700nm的负蓝色可见光波长区域内的镜面光时被致敏以产生照相记录，第二卤化银 乳剂层，其能够产生涂覆在第一卤化银乳剂层上的第二照相记录，以接收用于暴露第一卤化银乳剂层的镜面负蓝光，第二卤化银乳剂层能够用作传播介质 输送用于以镜面光的形式暴露第一卤化银乳剂层的至少一部分负蓝光，其中第二卤化银乳剂层由改进的光谱增感的超薄片状颗粒乳剂组成， 发明。

公开(公告)号：US5358840A

公开(公告)日：1994-10-25

申请号：US96104

申请日：1993-07-22

申请人： Eleanor Chaffee ,  Mamie Kam-Ng ,  Allen K. Tsaur ,  David E. Fenton ,  Donald L. Black

发明人： Eleanor Chaffee ,  Mamie Kam-Ng ,  Allen K. Tsaur ,  David E. Fenton ,  Donald L. Black

IPC分类号： G03C1/015 ,  G03C1/005 ,  G03C1/035 ,  G03C1/06 ,  G03C1/07

CPC分类号： G03C1/0051

摘要： Silver iodobromide tabular grain emulsions of enhanced photographic sensitivity are disclosed. The silver iodobromide grains contain from 2 to less than 10 mole percent iodide, exhibit a coefficient of variation of less than 20 percent, and consisting essentially of tabular grains having opposed parallel major faces. Each of the tabular silver bromoiodide grains exhibit an iodide concentration in excess of 6 mole percent within a surface region extending to a depth of less than 0.02 .mu.m and exhibit a central iodide concentration of less than 2 mole percent.The tabular grain emulsion is prepared by providing within a reaction vessel a population of silver bromide or iodobromide host grains exhibiting a coefficient of variation of less than 20 percent and containing less than 2 mole percent iodide consisting essentially of tabular grains and introducing silver, bromide and iodide ions into the reaction vessel for deposition onto the major faces on the host tabular grains, with iodide ions accounting for at least 25 mole percent of total halide ions introduced.

摘要翻译： 公开了具有增强的照相感光度的碘溴化银片状颗粒乳剂。 碘溴化银颗粒含有2至小于10摩尔％的碘化物，显示出小于20％的变异系数，并且基本上由具有相对的平行主面的片状颗粒组成。 每个片状溴碘化银颗粒在延伸到小于0.02μm深度的表面区域内显示出超过6mol％的碘化物浓度，并显示小于2mol％的中心碘化物浓度。 片状颗粒乳剂通过在反应容器内提供一组溴化银或碘溴化物主体颗粒，其显示出小于20％的变异系数并且含有小于2摩尔％的碘化物，其基本上由片状颗粒组成，并引入银，溴和 碘离子进入反应容器，沉积在主体片状颗粒的主面上，碘离子占引入总卤化物离子的至少25摩尔％。

公开(公告)号：US06656674B2

公开(公告)日：2003-12-02

申请号：US10027300

申请日：2001-12-21

申请人： Tommie L. Royster, Jr. ,  John E. Keevert, Jr. ,  Sharon G. Johnston ,  Donald L. Black ,  David W. Sandford

发明人： Tommie L. Royster, Jr. ,  John E. Keevert, Jr. ,  Sharon G. Johnston ,  Donald L. Black ,  David W. Sandford

IPC分类号： G03C1005

CPC分类号： G03C1/0051 ,  G03C2001/03511 ,  G03C2001/03552 ,  G03C2001/03564 ,  G03C2200/03

摘要： A photographic element which comprises a support bearing: (i) a first radiation-sensitive silver halide emulsion image-forming layer comprising a high bromide tabular grain emulsion including tabular grains having {111} major faces, exhibiting an average thickness of at least 0.07 &mgr;m and an average aspect ratio of at least 2; and (ii) a second radiation-sensitive silver halide emulsion image-forming layer comprising an ultrathin tabular grain emulsion including tabular grains having {111} major faces, containing greater than 70 mole percent bromide and at least 0.25 mole percent iodide, exhibiting an average thickness of less than 0.07 &mgr;m and an average equivalent circular diameter of at least 0.7 &mgr;m, and having latent image forming chemical sensitization sites on the surfaces of the tabular grains; wherein the surface chemical sensitization sites include epitaxially deposited silver halide protrusions containing an actual chloride concentration of from 20-50 mole %, based on epitaxially deposited silver, the chloride concentration being at least 10 mole percent higher than that of the tabular grains, and containing an actual iodide concentration of from 1 to 7 mole %, based on epitaxially deposited silver.

摘要翻译： 一种照相元件，其特征在于，包括一支承体：（i）第一辐射敏感的卤化银乳剂图像形成层，其包含高溴化物片状颗粒乳剂，其包含具有{111}主面的平片状颗粒，平均厚度至少为0.07μm 平均纵横比至少为2; 和（ii）包含超薄片状颗粒乳剂的第二种辐射敏感的卤化银乳剂图像形成层，其包括具有{111}主面的片状颗粒，其含有大于70摩尔％的溴化物和至少0.25摩尔％的碘化物， 厚度小于0.07μm，平均当量圆直径至少为0.7μm，并且在片状颗粒的表面上具有潜像形成的化学敏化位点; 其中所述表面化学增感部位包括外延沉积的银离子突出物，所述外延沉积的卤化银突起物以外延沉积的银为基准，其实际氯化物浓度为20-50摩尔％，氯化物浓度比片状颗粒高至少10摩尔％，并含有 实际的碘化物浓度为1至7摩尔％，基于外延沉积的银。