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    Ink jet head
    2.
    发明授权
    Ink jet head 失效
    喷墨头

    公开(公告)号：US5734395A

    公开(公告)日：1998-03-31

    申请号：US481528

    申请日：1995-09-11

    申请人： Shinichi Kamisuki ,  Mitsuro Atobe ,  Hiroshi Koeda ,  Shinichi Yotsuya ,  Masahiro Fujii ,  Naoki Kobayashi

    发明人： Shinichi Kamisuki ,  Mitsuro Atobe ,  Hiroshi Koeda ,  Shinichi Yotsuya ,  Masahiro Fujii ,  Naoki Kobayashi

    IPC分类号： B41J2/045 ,  B41J2/16 ,  B41J2/05

    CPC分类号： B41J2/04541 ,  B41J2/04578 ,  B41J2/16 ,  B41J2/1623 ,  B41J2/1629 ,  B41J2/1631 ,  B41J2/1642 ,  B41J2/1646 ,  B41J2002/14379 ,  B41J2202/03

    摘要： An ink jet head includes a common electrode formed on a semiconductor substrate. A charge is applied to the common electrode and an electrode disposed on another substrate in opposition to a diaphragm formed in the semiconductor substrate to electrostatically deform the diaphragm and eject ink. The common electrode comprises a single layer or multiple layer metallic coating forming ohmic contact on the semiconductor substrate. In addition, a group III or group V element is doped to a high concentration at the area on the semiconductor substrate where the common electrode is formed. The diaphragm can therefore vibrate at high speed. An ink jet head capable of high speed printing can be provided because supply and elimination of the charge to the diaphragm can be accomplished at high speed.

    摘要翻译： PCT No.PCT / JP93 / 01849 Sec。 371 1995年9月11日第 102（e）1995年9月11日PCT PCT 1993年12月21日PCT公布。 公开号WO94 / 15791 日期1994年7月21日喷墨头包括形成在半导体衬底上的公共电极。 相对于在半导体衬底中形成的隔膜相对于公共电极和设置在另一衬底上的电极，电荷使隔膜静电变形并喷射墨水。 公共电极包括在半导体衬底上形成欧姆接触的单层或多层金属涂层。 此外，在形成公共电极的半导体衬底上的区域上，将III族或V族元素掺杂到高浓度。 因此隔膜可以高速振动。 可以提供能够高速打印的喷墨头，因为可以高速地实现对隔膜的电荷的供应和消除。

    Electrostatic actuator and manufacturing method therefor
    4.
    发明授权
    Electrostatic actuator and manufacturing method therefor 失效
    静电致动器及其制造方法

    公开(公告)号：US06190003B1

    公开(公告)日：2001-02-20

    申请号：US08993788

    申请日：1997-12-19

    申请人： Kazuhiko Sato ,  Hiroyuki Maruyama ,  Masahiro Fujii ,  Tadaaki Hagata ,  Koji Kitahara ,  Keiichi Mukaiyama

    发明人： Kazuhiko Sato ,  Hiroyuki Maruyama ,  Masahiro Fujii ,  Tadaaki Hagata ,  Koji Kitahara ,  Keiichi Mukaiyama

    IPC分类号： B41J206

    CPC分类号： B41J2/1632 ,  B41J2/14314 ,  B41J2/16 ,  B41J2/1623 ,  B41J2/1626 ,  B41J2/1642 ,  B41J2/1646 ,  B41J2202/03

    摘要： An electrostatic actuator comprising opposing electrode members displaced relatively by an electrostatic force is provided with improved durability so that electrostatic attraction between opposing members does not drop and the opposing electrode members do not stick together. Hydrophobic films of hexamethyldisilazane (HMDS) are formed on a surface of segment electrode and a bottom surface of a diaphragm (common electrode) of an eletrostatic actuator wherein the diaphragm forms a wall of an ink chamber in an ink jet head. HMDS molecules are smaller than PFDA molecules, and a uniform, variation-free hydrophobic film can therefore be formed even when the gap between opposing electrodes is narrow. Durability and film stability of a HMDS hydrophobic film are also high. An electrostatic actuator with high durability and operating stability can thus be achieved.

    摘要翻译： 提供包括相对于静电力移动的相对电极构件的静电致动器，其具有改善的耐久性，使得相对构件之间的静电吸引力不会下降，并且相对的电极构件不会粘在一起。 在分段电极的表面和静电致动器的隔膜（公共电极）的底表面上形成六甲基二硅氮烷（HMDS）的疏水膜，其中隔膜在喷墨头中形成墨室的壁。 HMDS分子小于PFDA分子，因此即使在相对电极之间的间隙窄的情况下也可形成均匀的，无变化的疏水膜。 HMDS疏水膜的耐久性和膜稳定性也很高。 因此，可以实现具有高耐久性和操作稳定性的静电致动器。

    Methods for manufacturing an electrostatic actuator
    6.
    发明授权
    Methods for manufacturing an electrostatic actuator 有权
    静电致动器的制造方法

    公开(公告)号：US06410107B2

    公开(公告)日：2002-06-25

    申请号：US09727090

    申请日：2000-11-30

    申请人： Kazuhiko Sato ,  Hiroyuki Maruyama ,  Masahiro Fujii ,  Tadaaki Hagata ,  Koji Kitahara ,  Keiichi Mukaiyama

    发明人： Kazuhiko Sato ,  Hiroyuki Maruyama ,  Masahiro Fujii ,  Tadaaki Hagata ,  Koji Kitahara ,  Keiichi Mukaiyama

    IPC分类号： B05D512

    CPC分类号： B41J2/1632 ,  B41J2/14314 ,  B41J2/16 ,  B41J2/1623 ,  B41J2/1626 ,  B41J2/1642 ,  B41J2/1646 ,  B41J2202/03

    摘要： Methods for manufacturing an electrostatic actuator that comprises electrode members having opposing surfaces with a gap disposed therebetween. In an ink jet head, a bottom surface of a diaphragm may be one of the electrodes (common electrode) of an eletrostatic actuator, the diaphragm forming a wall of an ink chamber in the ink jet head that is displaced relatively by an electrostatic force. A hydrophobic film, preferably hexamethyldisilazane (HMDS), is formed on at least one of the opposing electrode surfaces to improve the durability of the electrostatic actuator so that electrostatic attraction between opposing electrode members does not decrease and the opposing electrode members do not stick together. HMDS molecules are smaller than PFDA molecules, and a uniform, variation-free hydrophobic film can therefore be formed even when the gap between opposing electrodes is narrow. Durability and film stability of a HMDS hydrophobic film are also high. An electrostatic actuator with high durability and operating stability can thus be achieved.

    摘要翻译： 一种制造静电致动器的方法，该静电致动器包括具有设置在其间的间隙的具有相对表面的电极构件。 在喷墨头中，隔膜的底表面可以是静电致动器的电极（公共电极）之一，隔膜形成喷墨头中相对于静电力移动的墨室的壁。 在至少一个相对电极表面上形成疏水膜，优选六甲基二硅氮烷（HMDS），以提高静电致动器的耐久性，使得相对电极部件之间的静电吸引力不会降低，并且相对的电极部件不会粘在一起。 HMDS分子小于PFDA分子，因此即使在相对电极之间的间隙窄的情况下也可形成均匀的，无变化的疏水膜。 HMDS疏水膜的耐久性和膜稳定性也很高。 因此，可以实现具有高耐久性和操作稳定性的静电致动器。

    Dispensing device, dispensing method and method of detecting defective discharge of solution containing biological sample
    9.
    发明授权
    Dispensing device, dispensing method and method of detecting defective discharge of solution containing biological sample 有权
    分配装置，分配方法和检测含有生物样品的溶液的不良排放的方法

    公开(公告)号：US07396511B2

    公开(公告)日：2008-07-08

    申请号：US10626828

    申请日：2003-07-25

    申请人： Masahiro Fujii ,  Hiroshi Koeda ,  Fumio Takagi

    发明人： Masahiro Fujii ,  Hiroshi Koeda ,  Fumio Takagi

    IPC分类号： B41J29/38 ,  B41J2/045 ,  B01L3/00

    CPC分类号： G01N35/1074 ,  G01N2035/1018 ,  G01N2035/1041 ,  Y10T436/2575

    摘要： Proposed is dispensing technology capable of reliably spotting a biological sample on a solid phase. A head chip applies a voltage pulse between a diaphragm and separate electrodes based on a drive control signal output from a head driver IC, and discharges a solution containing protein filled in a pressurized chamber as a result of the elastic deformation of the diaphragm. A drive pulse generation circuit generates a drive voltage pulse and supplies this to the head chip in order to discharge a solution containing protein from the head chip. The drive current detection circuit detects a drive current flowing between the diaphragm and separate electrodes. Since the waveform of the detected drive current and the peak current value and so on differ in the case where the discharge status is normal and in the case where it is abnormal, a defective discharge can be discriminated by detecting such change.

    摘要翻译： 提出了能够在固相上可靠地点样生物样品的分配技术。 头片基于从头驱动器IC输出的驱动控制信号在隔膜和分离的电极之间施加电压脉冲，并且由于隔膜的弹性变形而放出包含加压室中的蛋白质的溶液。 驱动脉冲产生电路产生驱动电压脉冲，并将其提供给头部芯片，以便从头部芯片排出含有蛋白质的溶液。 驱动电流检测电路检测在隔膜和分离电极之间流动的驱动电流。 由于在放电状态正常的情况下检测到的驱动电流和峰值电流值等的波形不同，并且在异常的情况下，可以通过检测这种变化来区分不良放电。