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22 条记录 (耗时 0.044 秒)

    Method and apparatus with vernier technique for registration of ejector module
    14.
    发明申请
    Method and apparatus with vernier technique for registration of ejector module 有权
    用于注射喷射器模块的游标技术的方法和装置

    公开(公告)号：US20060132519A1

    公开(公告)日：2006-06-22

    申请号：US11013704

    申请日：2004-12-17

    申请人： Gregory Kovacs

    发明人： Gregory Kovacs

    IPC分类号： B41J29/38

    CPC分类号： B41J2/2135 ,  B41J2/2146

    摘要： Alignment of an ejector module in a printhead is achieved along a lateral direction by arranging first and second partially overlapping pluralities of nozzles, determining an alignment pair between first and second nozzles within their respective pluralities, and assigning the alignment pair as boundaries for print actuation. The first and second ejector modules are disposed in a printhead array along a lateral direction and include first and second nozzles eject fluid on command. The first nozzles are disposed with a first spacing therebetween in the first ejector module. The second nozzles at one end of the second ejector module that overlap the first nozzles are disposed with a second spacing that differs from the first spacing. An alignment pair between first and second nozzles of their respective pluralities is determined to minimize an alignment spacing between each other as compared to remaining nozzles. The first and second alignment nozzles are assigned as first and second boundaries for print actuation.

    摘要翻译： 通过布置第一和第二部分重叠的多个喷嘴，确定喷射器模块在打印头中的对准，确定在它们各自的多个内部的第一和第二喷嘴之间的对准对，并且将对准对分配为打印致动的边界。 第一和第二喷射器模块沿着横向设置在打印头阵列中，并且包括第一和第二喷嘴按照命令喷射流体。 第一喷嘴在第一喷射器模块中以第一间隔设置在第一喷嘴之间。 与第一喷嘴重叠的第二喷射器模块的一端处的第二喷嘴以与第一间隔不同的第二间隔设置。 确定其相应多个的第一和第二喷嘴之间的对准对，以使与其余喷嘴相比彼此之间的对准间隔最小化。 第一和第二对准喷嘴被分配为用于打印致动的第一和第二边界。

    Low cost fabrication of microelectrode arrays for cell-based biosensors and drug discovery methods
    15.
    发明申请
    Low cost fabrication of microelectrode arrays for cell-based biosensors and drug discovery methods 有权

    公开(公告)号：US20060057771A1

    公开(公告)日：2006-03-16

    申请号：US11078904

    申请日：2005-03-10

    申请人： Gregory Kovacs ,  Laurent Giovangrandi

    发明人： Gregory Kovacs ,  Laurent Giovangrandi

    IPC分类号： H01L21/50 ,  H01L21/48 ,  C12M1/34

    CPC分类号： G01N33/4836 ,  H05K1/0212 ,  H05K3/0052 ,  H05K3/281

    摘要： A method for making a plurality of low-cost microelectrode arrays (MEAs) on one substrate utilizing certain unmodified printed circuit board (PCB) fabrication processes and selected materials. In some embodiments, a MEA device is composed of a thin polymer substrate containing patterned conductive traces. Coverlays on both sides of the substrate insulate the conductive traces and defines the electrodes. Preferably, flexible PCB technology is utilized to simultaneously define the microelectrode arrays. In an embodiment, the sensor is an integrated temperature sensor/heater in which the MEA device operates to record extracellular electrical signals from electrically active cell cultures. The present invention enables economical and efficient mass production of MEA devices, making them particularly suitable for disposable applications such as drug discovery, biosensors, etc.

    Enhanced microfluidic electromagnetic measurements
    16.
    发明授权
    Enhanced microfluidic electromagnetic measurements 有权
    增强型微流控电磁测量

    公开(公告)号：US09170138B2

    公开(公告)日：2015-10-27

    申请号：US13250605

    申请日：2011-09-30

    申请人： Laurent Giovangrandi ,  Antonio J. Ricco ,  Gregory Kovacs

    发明人： Laurent Giovangrandi ,  Antonio J. Ricco ,  Gregory Kovacs

    IPC分类号： G01F1/58 ,  G06F19/00

    CPC分类号： G01F1/58 ,  G01F1/584 ,  G01F1/586 ,  G01F1/588

    摘要： Techniques for enhanced microfluidic impedance spectroscopy include causing a core fluid to flow into a channel between two sheath flows of one or more sheath fluids different from the core fluid. Flow in the channel is laminar. A dielectric constant of a fluid constituting either sheath flow is much less than a dielectric constant of the core fluid. Electrical impedance is measured in the channel between at least a first pair of electrodes. In some embodiments, enhanced optical measurements include causing a core fluid to flow into a channel between two sheath flows of one or more sheath fluids different from the core fluid. An optical index of refraction of a fluid constituting either sheath flow is much less than an optical index of refraction of the core fluid. An optical property is measured in the channel.

    摘要翻译： 用于增强的微流体阻抗光谱的技术包括使核心流体流入不同于核心流体的一种或多种鞘液的两个鞘流之间的通道中。 通道中的流动是层流。 构成鞘流的流体的介电常数远小于芯流体的介电常数。 在至少第一对电极之间的通道中测量电阻抗。 在一些实施例中，增强的光学测量包括使芯流体流入不同于芯流体的一种或多种护套流体的两个护套流之间的通道中。 构成鞘流的流体的光学折射率远小于芯流体的光学折射率。 在通道中测量光学性质。