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    Method of making a fluid-jet ejection device
    54.
    发明授权
    Method of making a fluid-jet ejection device 失效
    制造流体喷射喷射装置的方法

    公开(公告)号：US06718632B2

    公开(公告)日：2004-04-13

    申请号：US10208331

    申请日：2002-07-29

    Applicant: Qin Liu ,  Naoto Kawamura ,  Chien-Hua Chen

    Inventor： Qin Liu ,  Naoto Kawamura ,  Chien-Hua Chen

    IPC: B23P1700

    CPC classification number: B41J2/1645 ,  B41J2/1404 ,  B41J2/14145 ,  B41J2/1603 ,  B41J2/1628 ,  B41J2/1629 ,  B41J2/1631 ,  B41J2/1632 ,  B41J2/1634 ,  B41J2/1635 ,  Y10T29/49 ,  Y10T29/49085 ,  Y10T29/49401

    Abstract: A method of creating a fluid ejection device is described. The fluid ejection device has a substrate having a set of thin-film layers disposed on a first surface. A photoresist is applied on the set of thin-film layers, the photoresist has openings defined therein. The set of thin-film layers and substrate in the openings are etched to create deep slots beneath the first surface of the substrate. The photoresist is removed. A protection layer is applied over the set of thin-film layers thereby filling the deep slots in the set of thin-film layers and substrate. A feed channel is created on a second surface of the substrate until the protection layer within the deep slots is exposed. The protection layer is then removed.

    Abstract translation: 描述了一种产生流体喷射装置的方法。 流体喷射装置具有设置在第一表面上的一组薄膜层的基板。 在一组薄膜层上施加光致抗蚀剂，光致抗蚀剂在其中限定开口。 对该组开口中的薄膜层和衬底进行蚀刻以在衬底的第一表面下方形成深槽。 去除光致抗蚀剂。 在该组薄膜层上施加保护层，从而填充该组薄膜层和衬底中的深槽。 在衬底的第二表面上形成馈送通道，直到深槽内的保护层被暴露。 然后去除保护层。

    Gradient coil apparatus for magnetic resonance imaging
    55.
    发明授权
    Gradient coil apparatus for magnetic resonance imaging 有权
    磁共振成像用梯度线圈装置

    公开(公告)号：US06680612B1

    公开(公告)日：2004-01-20

    申请号：US10065417

    申请日：2002-10-16

    Applicant: Graeme Colin McKinnon ,  Qin Liu

    Inventor： Graeme Colin McKinnon ,  Qin Liu

    IPC: G01V300

    CPC classification number: G01R33/385

    Abstract: A gradient coil assembly for use with an MR imaging system comprising: a main gradient coil disposed about an imaging axis to produce a gradient field; a corrector coil disposed about an imaging axis and positioned with a return portion substantially overlapping a return portion of main gradient coil. The main gradient coil and said corrector coil cooperate to provide a first field of view, the main gradient coil operates to provide a second field of view. A method of reducing power deposition in a gradient coil assembly comprising: determining a first current density corresponding to a first field-of-view for an effective gradient coil; computing a second current density corresponding to a second field of view, by reducing current from the first current density without changing a sign of said the associated therewith; determining a geometry for a main gradient coil; and ascertaining a geometry for a corrector coil.

    Abstract translation: 一种用于MR成像系统的梯度线圈组件，包括：围绕成像轴设置的梯度线圈，以产生梯度场; 校正器线圈，围绕成像轴设置并且具有大致与主梯度线圈的返回部分重叠的返回部分定位。 主梯度线圈和所述校正线圈协作提供第一视场，主梯度线圈操作以提供第二视场。 一种降低梯度线圈组件中的功率沉积的方法，包括：确定对应于有效梯度线圈的第一视场的第一电流密度; 通过从所述第一电流密度减少电流而不改变与其相关联的符号来计算对应于第二视场的第二电流密度; 确定主梯度线圈的几何形状; 并确定校正线圈的几何形状。

    Method for hydrogel surface treatment
    56.
    发明授权
    Method for hydrogel surface treatment 失效
    水凝胶表面处理方法

    公开(公告)号：US06623786B2

    公开(公告)日：2003-09-23

    申请号：US09873827

    申请日：2001-06-04

    Applicant: Richard Carlton Baron ,  Qin Liu

    Inventor： Richard Carlton Baron ,  Qin Liu

    IPC: B05D300

    CPC classification number: G02B1/043 ,  C08J7/18 ,  C08L51/06 ,  C08L51/085

    Abstract: A method of modifying the surface characteristics of a polymeric hydrogel, and a polymer article formed therefrom, without causing substantial swelling or distortion or the hydrogel. A preferred method includes photoinitating of the surface of the article with a benzophenone and grafting a macromer having a number-average molecular weight greater than 1000 in the presence of UV irradiation. The preferred article is a siloxane-containing hydrogel, especially a soft contact lens.

    Abstract translation: 改进聚合物水凝胶的表面特性的方法和由其形成的聚合物制品，而不引起实质的膨胀或变形或水凝胶。 优选的方法包括用二苯甲酮对制品的表面进行光激发，并在UV照射的情况下接枝数均分子量大于1000的大分子单体。 优选的制品是含硅氧烷的水凝胶，特别是软性隐形眼镜。

    High durability polymide-containing printhead system and method for making the same
    59.
    发明授权
    High durability polymide-containing printhead system and method for making the same 失效
    高耐久性聚酰亚胺的打印头系统及其制造方法

    公开(公告)号：US06179413B2

    公开(公告)日：2001-01-30

    申请号：US08962418

    申请日：1997-10-31

    Applicant: Donald J. Coulman ,  Qin Liu ,  Kit C. Baughman ,  Paul H. McClelland ,  Douglas A. Sexton

    Inventor： Donald J. Coulman ,  Qin Liu ,  Kit C. Baughman ,  Paul H. McClelland ,  Douglas A. Sexton

    IPC: B41J205

    CPC classification number: B41J2/1603 ,  B41J2/14024 ,  B41J2/1623 ,  B41J2/1628 ,  B41J2/1645 ,  B41J2202/03

    Abstract: A high-durability printhead for an ink cartridge printing system. The printhead includes a substrate having ink ejectors (e.g. resistors) thereon and an orifice plate positioned above the substrate. The orifice plate has a top surface, bottom surface, and a plurality of openings therethrough. The orifice plate is optimally produced from a non-metallic organic polymeric composition. To improve the durability, heat-stability, and ink resistance of the printhead, an intermediate layer manufactured from a thermoplastic polyimide is employed between the orifice plate and the ink ejector-containing substrate. This particular system generally improves the structural integrity of the printhead and provides longer cartridge life.

    Abstract translation: 用于墨盒打印系统的高耐用性打印头。 打印头包括其上具有墨喷射器（例如电阻器）的基板和位于基板上方的孔板。 孔板具有顶表面，底表面和穿过其中的多个开口。 孔板最好由非金属有机聚合物组合物制成。 为了提高打印头的耐久性，热稳定性和耐油墨性，在孔板和含有喷射器的基板之间采用由热塑性聚酰亚胺制成的中间层。 该特定系统通常改善了打印头的结构完整性，并提供更长的墨盒寿命。

    Image compression method and apparatus which satisfies a predefined bit budget
    60.
    发明授权
    Image compression method and apparatus which satisfies a predefined bit budget 失效
    满足预定义位预算的图像压缩方法和装置

    公开(公告)号：US6118903A

    公开(公告)日：2000-09-12

    申请号：US116563

    申请日：1998-07-15

    Applicant: Qin Liu

    Inventor： Qin Liu

    IPC: G06T9/00 ,  H04N7/26 ,  H04N7/30 ,  G06K9/36

    CPC classification number: H04N19/126 ,  H04N19/60 ,  H04N19/124

    Abstract: A DCT based lossy compression method for compressing a digitized image composed of a matrix of image samples to provide a compressed image which satisfies a predefined bit budget. The digitized image is first sub-divided into blocks (e.g. of size 8.times.8 pixels). A discrete cosine transform (DCT) comprising a set of DCT coefficients is then derived for each block. A quantization table is selected from a set of quantization tables and, using the selected table, the coefficients of each DCT are quantized. A zero-value index, corresponding to the average number of zero value quantized DCT coefficients per DCT, is determined. A predicted zero-value index is calculated using said predefined bit budget and a quantization table selected from said set of tables using the determined index and the predicted index. Using that selected table, the unquantized coefficients of the DCTs are re-quantized and the requantized coefficients compressed using run-length encoding and Huffman encoding.

    Abstract translation: 一种基于DCT的有损压缩方法，用于压缩由图像样本矩阵组成的数字化图像，以提供满足预定比特率预算的压缩图像。 数字化图像首先被细分成块（例如大小为8×8像素）。 然后对于每个块导出包括一组DCT系数的离散余弦变换（DCT）。 从一组量化表中选择量化表，并且使用所选择的表来量化每个DCT的系数。 确定对应于每DCT的零值量化DCT系数的平均数的零值索引。 使用所确定的索引和预测索引，使用所述预定义位预算和从所述表组中选择的量化表计算预测零值索引。 使用该选择的表，对DCT的未量化系数进行重新量化，并且使用游程长度编码和霍夫曼编码来压缩重新量化的系数。

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