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    • 2. 发明授权
    • Blue spectrally sensitized film for radiography, imaging assembly and method
    • 蓝光谱增感胶片用于放射成像,成像组装和方法
    • US06686116B1
    • 2004-02-03
    • US10397435
    • 2003-03-26
    • Robert E. DickersonAnthony AdinStephen A. HersheyRichard F. Davis
    • Robert E. DickersonAnthony AdinStephen A. HersheyRichard F. Davis
    • G03C517
    • G03C5/16G03C1/047G03C1/16G03C1/29G03C1/46G03C5/17G03C5/26G03C2001/0055G03C2001/03511G03C2001/03535G03C2007/3025G03C2200/27G03C2200/52Y10S430/167Y10S430/168
    • A blue-sensitive radiographic silver halide film comprises a silver halide emulsion layer comprising predominantly tabular silver halide grains that have an aspect ratio of at least 15, a grain thickness of at least 0.1 &mgr;m, and comprise at least 90 mol % bromide and up to 4 mol % iodide, based on total silver halide. Substantially all of the iodide is present in an internal localized portion of the tabular silver halide grains that excludes the surface of the grains. The tabular silver halide grains are dispersed in a hydrophilic polymeric vehicle mixture comprising at least 0.5% of oxidized gelatin, based on the total dry weight of the polymeric vehicle mixture in the emulsion layer. The tabular silver halide grains are spectrally sensitized using a combination of spectral sensitizing dyes to provide increased speed and reduced dye stain. The dyes have maximum J-aggregate absorptions on the tabular silver halide grains of from about 380 to about 500 nm, wherein the maximum J-aggregate absorption of one spectral sensitizing dye is from about 20 to about 50 nm lower in wavelength than the maximum J-aggregate absorption of the second spectral sensitizing dye.
    • 蓝色感光放射线卤化银膜包括卤化银乳剂层,其主要包含片状卤化银颗粒,其长宽比至少为15,晶粒厚度为至少0.1μm,并且包含至少90mol%的溴化物,直到 4mol%碘化物,基于总卤化银。 基本上所有的碘化物都存在于不排除颗粒表面的片状卤化银颗粒的局部部分内。 片状卤化银颗粒分散在包含至少0.5%氧化明胶的亲水性聚合物载体混合物中,基于乳液层中聚合物载体混合物的总干重。 片状卤化银颗粒使用光谱增感染料的组合进行光谱增感,以提高速度和减少染色剂染色。 这些染料在约380至约500nm的片状卤化银颗粒上具有最大的J-聚集体吸收,其中一种光谱增感染料的最大J-聚集体吸收值比最大J值低约20至约50nm 聚集的第二光谱增感染料的吸收。
    • 4. 发明授权
    • Blue-sensitive film for radiography with reduced dye stain
    • 蓝色感光膜,用于放射线照相,染色剂染色减少
    • US06686117B1
    • 2004-02-03
    • US10397537
    • 2003-03-26
    • Robert E. DickersonRichard F. Davis
    • Robert E. DickersonRichard F. Davis
    • G03C517
    • G03C5/16G03C1/047G03C1/46G03C5/17G03C5/26G03C2001/0055G03C2001/03511G03C2001/03535G03C2001/03564G03C2007/3025G03C2200/27G03C2200/52Y10S430/167Y10S430/168
    • A radiographic silver halide film has reduced yellow dye stain by including a blend of tabular silver halide grains in the emulsion layers. The blend of grains includes blue-sensitive tabular silver halide grains that have an aspect ratio of at least 15, a grain thickness of at least 0.1 &mgr;m, and comprise at least 90 mol % bromide and up to 4 mol % iodide, based on total silver halide. Substantially all of the iodide is present in an internal localized portion of the tabular silver halide grains that excludes the surface of the grains. The blend also includes green-sensitive tabular silver halide grains that have an aspect ratio of at least 20, a grain thickness of at least 0.07 &mgr;m, and comprise at least 90 mol % bromide, up to 1.5 mol % chloride, and up to 1.5 mol % iodide, based on total silver halide. The molar ratio of silver in the blue-sensitive silver halide grains to the silver in the green-sensitive silver halide grains is from about 2:1 to about 6:1. The tabular silver halide grains are dispersed in a hydrophilic polymeric vehicle mixture comprising at least 0.5% of oxidized gelatin, based on the total dry weight of the polymeric vehicle mixture in the emulsion layer.
    • 通过在乳剂层中包括片状卤化银颗粒的混合物,放射线状卤化银膜具有减少的黄色染料染色。 颗粒的混合物包括蓝色敏感的片状卤化银颗粒,其长宽比至少为15,颗粒厚度为至少0.1μm,并且包含至少90mol%的溴化物和至多4mol%的碘化物,基于总计 卤化银 基本上所有的碘化物都存在于不排除颗粒表面的片状卤化银颗粒的局部部分内。 共混物还包括长度比至少为20,晶粒厚度至少为0.07微米,并且包含至少90摩尔%溴化物,至多1.5摩尔氯化物和至多1.5摩尔浓度的绿敏感的片状卤化银颗粒 基于总卤化银的摩尔%碘化物。 感蓝卤化银颗粒中的感蓝卤化银颗粒中的银与银的摩尔比为约2:1至约6:1。 片状卤化银颗粒分散在包含至少0.5%氧化明胶的亲水性聚合物载体混合物中,基于乳液层中聚合物载体混合物的总干重。
    • 6. 发明授权
    • Reworkable, thermally-conductive adhesives for electronic assemblies
    • 用于电子组件的可再生导热粘合剂
    • US6132850A
    • 2000-10-17
    • US755938
    • 1996-11-25
    • Ralph D. HermansenRichard F. DavisE. Dean Johnston
    • Ralph D. HermansenRichard F. DavisE. Dean Johnston
    • H05K3/00H05K3/28B32B5/16
    • H05K3/284H05K3/0058Y10T428/24893
    • An adhesive and method for attaching a heat sink to a printing wiring assembly that provides a thermal path from electronic components on the printing wiring assembly to the heat sink. The adhesive is flexible and accommodates thermal expansion stresses and is readily reworkable. The adhesive comprises a filler material that is disposed between the heat sink and the printing wiring assembly, and an impregnant that impregnates the filler material, which impregnated filler material is cured. The filler material may comprise alumina particles that have a spherical shape. The impregnant comprises a polymer, typically selected from a group of epoxy resins and their curatives that form a flexible material when cured. In practicing the method, a heat sink is positioned adjacent to and spaced apart from a printing wiring assembly to provide an appropriate spacing between them. The periphery of the printing wiring assembly is sealed. A cavity that is formed between the heat sink and the printing wiring assembly is filled with a filler material. The filled assembly is vibrated to maximize packing density of the filler material. The filler material is then impregnated with a flexible epoxy impregnant. The impregnant is then cured to form the flexible adhesive. This produces a structure wherein the heat sink is bonded to the printed wiring assembly.
    • 一种用于将散热器附接到印刷布线组件的粘合剂和方法,其提供从打印布线组件上的电子部件到散热器的热路径。 粘合剂是柔性的并且适应热膨胀应力并且易于再加工。 粘合剂包括布置在散热器和印刷布线组件之间的填充材料,以及浸渍填充材料的浸渍剂,浸渍的填充材料被固化。 填充材料可以包括具有球形形状的氧化铝颗粒。 浸渍剂包括通常选自一组环氧树脂及其固化剂的聚合物,其在固化时形成柔性材料。 在实施该方法时,将散热器定位成与印刷布线组件相邻并间隔开以在它们之间提供适当的间隔。 印刷布线组件的周边被密封。 在散热器和印刷布线组件之间形成的空腔填充有填充材料。 填充的组件被振动以最大化填充材料的堆积密度。 然后用柔性环氧浸渍剂浸渍填料。 然后将浸渍剂固化以形成柔性粘合剂。 这产生其中散热器被结合到印刷线路组件的结构。
    • 9. 发明授权
    • High frequency and low noise interconnect system
    • 高频和低噪声互连系统
    • US07107034B2
    • 2006-09-12
    • US10608741
    • 2003-06-27
    • Richard F. Davis
    • Richard F. Davis
    • H04B1/10H01R4/58H01R13/648
    • H01R13/2414H01P1/047H01R24/50H01R2103/00H05K1/0243H05K3/325
    • Methods and apparatus are provided for an interconnect system for coupling radio frequency signals from one component to another in a RF system. The interconnect system acts as a coaxial connection. The apparatus comprises an interconnect, a dielectric sleeve, and a conductive elastomeric gasket. The interconnect has a first major surface and second major surface for providing an electrical connection. A through hole is formed in a first component. The dielectric sleeve is placed in the through hole. The interconnect is placed in the dielectric sleeve. The conductive elastomeric gasket is placed in proximity to the through hole contacting the first component and a second component. The RF system is assembled compressing the elastomeric gasket to have intimate contact with the first and second component. The intimate contact electrically connects the first and second component and an electric shield is formed around the interconnect thereby suppressing the reception and transmission of RF signals.
    • 为在RF系统中将射频信号从一个组件耦合到另一个组件的互连系统提供了方法和装置。 互连系统充当同轴连接。 该装置包括互连,电介质套管和导电弹性垫片。 互连具有用于提供电连接的第一主表面和第二主表面。 在第一部件中形成有通孔。 电介质套管放置在通孔中。 互连被放置在电介质套管中。 导电弹性体垫片放置在与第一部件和第二部件接触的通孔附近。 RF系统被组装成压缩弹性垫圈以与第一和第二部件紧密接触。 紧密接触电连接第一和第二部件,并且在互连件周围形成电屏蔽,从而抑制RF信号的接收和传输。