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    Liquid drop emitter
    4.
    发明授权
    Liquid drop emitter 失效
    液滴发射器

    公开(公告)号：US07261862B2

    公开(公告)日：2007-08-28

    申请号：US10229910

    申请日：2002-08-28

    申请人： Motoo Noritake ,  Toshikazu Hirota ,  Takao Ohnishi

    发明人： Motoo Noritake ,  Toshikazu Hirota ,  Takao Ohnishi

    IPC分类号： B41J2/145

    CPC分类号： B01L3/0268 ,  B01J2219/00369 ,  B01L2300/0819 ,  B01L2400/0439 ,  C40B60/14 ,  G01N2035/1039

    摘要： An improved structure of a liquid drop emitter is provided which works to emit minute drops of liquid to deposit them in a dense array of dots on a substrate to produce a DNA chip, for example. The liquid drop emitter has a plurality of liquid inlets formed in rows in a staggered fashion, thereby allowing the liquid inlets to have a maximum possible area without any physical interference between adjacent two of them and also allowing outlet nozzles to be arranged in a dense array.

    摘要翻译： 提供了一种液滴发射器的改进的结构，其工作是发射一滴液体，以将它们沉积在基底上的密集阵列中，以产生例如DNA芯片。 液滴发射器具有多个以交错方式成行的液体入口，从而允许液体入口具有最大可能的面积，而相邻的两个之间没有任何物理干扰，并且还允许出口喷嘴以致密的阵列 。

    Method for detection of solid particles in fluid and particle sensor used in said method
    7.
    发明授权
    Method for detection of solid particles in fluid and particle sensor used in said method 失效
    用于检测所述方法中使用的流体和颗粒传感器中的固体颗粒的方法

    公开(公告)号：US5987972A

    公开(公告)日：1999-11-23

    申请号：US47118

    申请日：1998-03-24

    申请人： Toshikazu Hirota ,  Kazuyoshi Shibata ,  Yasuhito Yajima

    发明人： Toshikazu Hirota ,  Kazuyoshi Shibata ,  Yasuhito Yajima

    IPC分类号： G01V9/00 ,  G01N15/02 ,  H01L41/08 ,  G01N15/06 ,  G01N29/02

    CPC分类号： G01N15/0255

    摘要： A method for detecting the solid particles contained in a fluid, by the use of a particle sensor having a flow path of a fluid, having a fluid inlet and a fluid outlet, and a sensor element provided in the flow path, which comprises (a) a vibrating section having such a mass that is sensitive to the collision of solid particles contained in the fluid, with the vibrating section and (b) a detecting section for detecting the vibration of the vibrating section caused by the collision and converting the vibration to electric signals. The method includes steps of: passing a fluid to be examined, through the particle sensor, selectively detecting, from the electric signals outputted from the particle sensor, an electric signal portion having particular frequencies ranging from 1/50 to 10 times the primary resonance frequency of the sensor element, measuring the maximum amplitude of the electric signal portion, comparing the maximum amplitude measured above, with a given value predetermined with the particle sensor based on (1) the maximum amplitude of a portion of the electric signals caused by the collision of solid particles contained in a fluid, having the above particular frequencies and (2) the maximum amplitude of a portion of the electric signals caused by the turbulent flow of the same fluid containing no solid particles, having the above particular frequencies, and judging, depending upon the result of the above comparison, whether or not the electric signals outputted from the particle sensor with the fluid to be examined have been caused by the collision of solid particles with the particle sensor.

    摘要翻译： 通过使用具有流体入口和流体出口的流体的流路的粒子传感器和设置在流路中的传感器元件，检测流体中包含的固体颗粒的方法，其包括（a ）具有这样的质量的振动部分，其对包含在流体中的固体颗粒的碰撞敏感;以及（b）检测部分，用于检测由碰撞引起的振动部分的振动并将振动转换成 电信号。 该方法包括以下步骤：使被检查流体通过粒子传感器从粒子传感器输出的电信号中选择性地检测具有从+ E，fra 1/50 + EE到特定频率的电信号部分 测量传感器元件的初级共振频率的10倍，测量电信号部分的最大幅度，将上述测量的最大幅度与由粒子传感器预定的给定值进行比较，其基于（1）一部分的最大振幅 由具有上述特定频率的流体中包含的固体颗粒的碰撞引起的电信号和（2）由不含固体颗粒的相同流体的湍流引起的电信号的一部分的最大振幅，具有上述 特定频率，并且根据上述比较的结果判断从颗粒传感器输出的电信号是否为 待检查的流体是由固体颗粒与颗粒传感器的碰撞引起的。

    Recording head distal-end substrate having opposed recording electrode array and return circuit electrode sheet
    8.
    发明授权
    Recording head distal-end substrate having opposed recording electrode array and return circuit electrode sheet 失效
    具有对准记录电极阵列和返回电路电极片的记录头端基底

    公开(公告)号：US5101221A

    公开(公告)日：1992-03-31

    申请号：US694489

    申请日：1991-05-02

    申请人： Yukihisa Takeuchi ,  Toshikazu Hirota ,  Shigeki Okada

    发明人： Yukihisa Takeuchi ,  Toshikazu Hirota ,  Shigeki Okada

    IPC分类号： B41J2/325 ,  B41J2/32 ,  B41J2/335 ,  B41J2/395

    CPC分类号： B41J2/3351 ,  B41J2/33545 ,  B41J2/33565 ,  B41J2/395

    摘要： A recording head operable to apply an electric current to an electrically resistive layer provided on a recording medium or a planar intermediate member interposed between the medium and the recording head. The head includes an electrically insulating substrate, and at least one recording electrode formed on one of opposite major surfaces of the substrate. The substrate is formed of an electrically insulating material whose wear resistance is lower than that of the recording electrode or electrodes. The substrate has a distal end portion extending from a proximal portion by a predetermined distance from the proximal portion for contact with the electrically resistive layer. The distal end portion has a thickness smaller than that of the proximal portion, as measured in a direction perpendicular to a direction of extension of the distal end portion. At least one return circuit electrode formed from a metal or metal alloy sheet is provided on the other major surface of the substrate remote from the recording electrode(s).

    Liquid drop discharge piezoelectric device
    10.
    发明授权
    Liquid drop discharge piezoelectric device 有权
    液滴放电压电装置

    公开(公告)号：US07588322B2

    公开(公告)日：2009-09-15

    申请号：US11669608

    申请日：2007-01-31

    申请人： Takao Ohnishi ,  Kazuhiro Yamamoto ,  Yoshihiro Iseki ,  Koji Kimura ,  Toshikazu Hirota

    发明人： Takao Ohnishi ,  Kazuhiro Yamamoto ,  Yoshihiro Iseki ,  Koji Kimura ,  Toshikazu Hirota

    IPC分类号： B41J2/045

    CPC分类号： B41J2/14209 ,  B41J2002/14217 ,  B41J2202/11

    摘要： A liquid droplet discharging piezoelectric device 1 provided with a cavity member 11 with a built-in cavity 3; an introduction member 13 having introduction channel 5 connecting with the cavity 3; and a nozzle member 12 having nozzle channel 4 connecting with the cavity 3 on a side opposite to the channel 5. This liquid droplet discharging piezoelectric device 1 is provided with an introduction port 6, attached to the introduction member 13, capable of introducing a liquid into the cavity 3 via the introduction channel 5, and a discharge port 7, attached to the nozzle member 12, capable of discharging as droplets a liquid filled in the cavity 3 via the nozzle channel 40. Even in a case where an amount of liquid droplets is of a nanoliter (nl) order, excellent stability and reproducibility are attained, and the unit can stably be operated when attached to an apparatus.

    摘要翻译： 具有内置空腔3的空腔构件11的液滴排出压电装置1; 引入构件13，其具有与空腔3连接的引入通道5; 以及喷嘴构件12，其具有在与通道5相反的一侧与空腔3连接的喷嘴通道4.该液滴排出压电装置1设置有引入口6，引入口6安装在导入构件13上，能够引入液体 通过引入通道5进入空腔3和附接到喷嘴构件12的排出口7，其能够通过喷嘴通道40作为液滴喷射填充在空腔3中的液体。即使在液体量 液滴具有纳升级（nl）级，达到优异的稳定性和再现性，并且当装置安装时该装置可以稳定地操作。