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    • 22. 发明授权
    • Cyan coupler dispersion with increased activity
    • 青色成色剂分散体具有增加的活性
    • US06680165B1
    • 2004-01-20
    • US10279892
    • 2002-10-24
    • Jerrold N. PoslusnyPaul B. MerkelDavid A. SteeleDrake M. MichnoDavid S. RossRichard K. RothrockPaul L. Zengerle
    • Jerrold N. PoslusnyPaul B. MerkelDavid A. SteeleDrake M. MichnoDavid S. RossRichard K. RothrockPaul L. Zengerle
    • G03C108
    • G03C7/3006G03C7/342G03C7/346G03C7/3885G03C7/39216
    • The invention provides a color negative photographic element comprising a light sensitive silver halide emulsion imaging layer having associated therewith a cyan dye-forming coupler dispersion comprising a first 2-ureido-5-acylamino substituted phenolic cyan dye-forming coupler [P], a second phenolic cyan dye-forming coupler [AP] where the 2-substituent is other than an ureido group, a substantially non-color-developable phenolic activator compound [ACT], and a non-phenolic organic coupler solvent having a boiling point of at least 150C; wherein compounds represented by [P], [AP], and [ACT] are present in the coupler dispersion in relative weight fractions of from 0.30 to 0.65 for [P], from 0.15 to 0.35 for [AP], and from 0.15 to 0.35 for [ACT], provided the sum of the relative weight fractions for [P]+[AP]+[ACT]=1, and the weight ratio of the non-phenolic coupler solvent in the coupler dispersion is from 0.30 to 2.0 relative to the sum of [P]+[AP]+[ACT]. Photographic elements incorporating the dispersion formulation of this invention provide good activity, a cyan dye of high density and acceptable absorption maximum for color negative films. In addition, partial substitution of less expensive cyan auxiliary phenolic coupler [AP] and activator [ACT] for cyan phenolic coupler [P] advantageously allows cost savings.
    • 本发明提供了一种彩色底片照相材料,其包含光敏卤化银乳剂成像层,其具有与其形成青色染料的成色剂分散体,其包含第一个2-脲基-5-酰基氨基取代的苯酚青色染料成色剂[P],第二个 酚类青色染料形成成色剂[AP],其中2-取代基不是脲基,基本上不显色的酚类活化剂化合物[ACT]和至少具有沸点的非酚类有机成色剂溶剂 150C; 其中由[P],[AP]和[ACT]表示的化合物在[P]为0.30〜0.65,[AP]为0.15〜0.35,0.15〜0.35的相对重量分数存在于成色剂分散体中 对于[ACT],只要[P] + [AP] + [ACT] = 1的相对重量分数之和,耦合剂分散体中非酚类成色剂溶剂的重量比相对于 [P] + [AP] + [ACT]的总和。 结合本发明的分散体制剂的摄影元件提供了良好的活性,对于彩色底片,高密度和可接受的吸收最大值的青色染料。 另外,青色酚类偶联剂[P]的较便宜的青色辅助酚醛偶合剂[AP]和活化剂[ACT]的部分取代有利于节约成本。
    • 23. 发明授权
    • Ink jet printing using drop-on-demand techniques for continuous tone printing
    • 使用按需喷墨技术进行连续色调打印的喷墨打印
    • US06394585B1
    • 2002-05-28
    • US09738922
    • 2000-12-15
    • David S. Ross
    • David S. Ross
    • B41J204
    • B41J2/14451
    • Apparatus for controlling ink in an ink jet printer includes an ink delivery channel; a source of pressurized ink communicating with the ink delivery channel; a nozzle bore which opens into the ink delivery channel to establish an ink flow path, the nozzle bore defining a nozzle bore perimeter, inherent surface tension of pressurized ink in the nozzle bore forming an ink meniscus; and a selectively-actuated heater associated with the nozzle bore to cause a reduction in the surface tension of the ink when activated such that ink flows from the nozzle bore in a continuous stream substantially for the duration of activation of the heater only.
    • 用于在喷墨打印机中控制墨水的设备包括墨水输送通道; 与油墨输送通道连通的加压油墨源; 喷嘴孔,其通向油墨输送通道以建立油墨流动通道,喷嘴孔限定喷嘴孔周边,喷嘴孔中加压油墨的固有表面张力形成油墨弯液面; 以及与喷嘴孔相关联的选择性致动的加热器,以在被启动时引起墨水的表面张力的降低,使得油墨在连续流中从喷嘴孔流出,基本上仅在加热器的启动期间。
    • 24. 发明授权
    • Color photographic element containing speed-improving polymers
    • 含有改性聚合物的彩色照相元件
    • US06316177B1
    • 2001-11-13
    • US09540808
    • 2000-03-31
    • Philip A. AllwayTienteh ChenDavid S. RossStephen P. Singer
    • Philip A. AllwayTienteh ChenDavid S. RossStephen P. Singer
    • G03C108
    • G03C1/053G03C7/39256G03C7/3926G03C7/39272G03C7/39276G03C7/396G03C2001/348G03C2200/33
    • Disclosed is a color silver halide photographic element comprising a light-sensitive silver halide emulsion layer or a non-silver containing light-insensitive layer, said light-sensitive or light-insensitive layer containing a polymer compound comprising a heterocycle unit derived from: (a) a heterocycle monomer (1) comprising two or more annulated rings containing, in total, a minimum of three ring heteroatoms of which no more than two of the heteroatoms are connected in sequence to each other and (2) having a ClogP less than 6.2; or (b) a monocyclic heterocycle monomer having exactly three ring heteroatoms and having a ClogP less than 8.75; with the proviso that the heterocycle unit does not contain a hydroxy or mercapto group (or their tautomeric equivalent), and does not react with oxidized developer; and the amount of the polymer compound in the element being sufficient to increase the photographic speed of the element compared to the same element without the compound.
    • 公开了一种彩色卤化银照相元件,其包含感光卤化银乳剂层或不含银的不透光层,所述光敏或不透光层含有包含衍生自以下的杂环单元的聚合物化合物:(a )包含两个或更多个环状环的杂环单体(1),其总共包含至少三个环杂原子,其中不超过两个杂原子彼此连接并且(2)具有小于6.2的ClogP ; 或(b)具有正好三个环杂原子且具有小于8.75的ClogP的单环杂环单体;条件是杂环单元不含羟基或巯基(或其互变异构体当量),并且不与氧化显影剂反应 ; 并且与没有化合物的相同元素相比,元件中高分子化合物的量足以增加元件的照相速度。
    • 27. 发明授权
    • Pulsing portions of a filter cell to extend a filter run
    • 过滤器单元的脉冲部分延伸过滤器运行
    • US4976873A
    • 1990-12-11
    • US450934
    • 1989-12-14
    • David S. Ross
    • David S. Ross
    • B01D24/00
    • B01D24/002
    • An improved method for operating a down-flow granular medium filter is disclosed which increases the effective filtration time between backwashes. The filter tank cell is divided into a plurality of subcells, each individually adapted and controlled for periodic intermittent upwardly-directed pulses of fluid passed through the filter bed within each subcell from an array of orifices beneath or in the bed. During the filtration run, one subcell is pulsed to improve the porosity of that portion of the filter bed while the remainder of the subcells continue to filter wastewater. After initiation of the first pulsing cycle for a subcell, additional subcell pulsing cycles are initiated sequentially. At the end of the filtration run the whole filter cell is backwashed to remove particulate matter from the bed and prepare the bed for the next filtration run.
    • 公开了用于操作下流式粒状介质过滤器的改进方法,其增加了反洗液之间的有效过滤时间。 过滤罐箱被分成多个子电池,每个子电池单独适应和控制,用于周期性间歇性向上指向的流体脉冲,其通过床内或床中的孔阵列在每个子电池内通过过滤床。 在过滤运行期间,一个子电池被脉冲以改善该过滤床部分的孔隙率,而其余的子电池继续过滤废水。 在子电池的第一脉冲周期开始之后,依次启动附加的子电池脉冲循环。 在过滤结束时,将整个过滤池反洗,以从床中除去颗粒物,并准备床进行下一次过滤运行。
    • 30. 发明授权
    • Snap-through thermal actuator
    • 卡通式导热器
    • US06953240B2
    • 2005-10-11
    • US11015999
    • 2004-12-18
    • Antonio CabalJohn A. LebensDavid P. TrauernichtDavid S. Ross
    • Antonio CabalJohn A. LebensDavid P. TrauernichtDavid S. Ross
    • B41J2/14B41J2/04B41J2/05
    • B41J2/14B41J2002/14346
    • A snap-through thermal actuator for a micro-electromechanical device, for example, a liquid drop emitter or a fluid control microvalve, is disclosed. The snap-through actuator includes a base element formed with a depression having opposing anchor edges which define a central plane. A deformable element, attached to the base element at the opposing anchor edges, is constructed as a planar lamination including a first layer of a first material having a low coefficient of thermal expansion and a second layer of a second material having a high coefficient of thermal expansion. The deformable element is formed to have a residual shape bowing outward from the central plane in a first direction away from the second layer. The snap-through thermal actuator further includes apparatus adapted to apply a heat pulse to the deformable element which causes a sudden rise in the temperature of the deformable element.
    • 公开了一种用于微机电装置的卡通式热致动器,例如液滴发射器或流体控制微型阀。 卡通贯通致动器包括形成有凹部的基部元件,该凹陷具有限定中心平面的相对的锚定边缘。 在相对的锚边缘处附接到基体元件的可变形元件被构造为平面层压,其包括具有低热膨胀系数的第一材料的第一层和具有高热系数的第二材料的第二层 扩张。 可变形元件形成为具有从远离第二层的第一方向从中心平面向外弯曲的残留形状。 卡通式热致动器还包括适于向可变形元件施加热脉冲的装置,其引起可变形元件的温度的突然升高。