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    • 8. 发明授权
    • Dispensing device, dispensing method and method of detecting defective discharge of solution containing biological sample
    • 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
    • US07396511B2
    • 2008-07-08
    • US10626828
    • 2003-07-25
    • Masahiro FujiiHiroshi KoedaFumio Takagi
    • Masahiro FujiiHiroshi KoedaFumio Takagi
    • B41J29/38B41J2/045B01L3/00
    • G01N35/1074G01N2035/1018G01N2035/1041Y10T436/2575
    • 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.
    • 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。
    • 10. 发明申请
    • Droplet jet head and droplet jet apparatus
    • 液滴喷头和液滴喷射装置
    • US20060186174A1
    • 2006-08-24
    • US11354619
    • 2006-02-15
    • Yasushi MatsunoMasahiro FujiiAkira Sano
    • Yasushi MatsunoMasahiro FujiiAkira Sano
    • B23K1/00B23K5/00B23K20/08
    • B41J2/14314B41J2002/14411B41J2002/14491
    • A droplet jet head includes a nozzle substrate having a plurality of nozzle holes; a cavity substrate having recesses whose bottoms serve as diaphragms, and the recesses serving as ejection chambers; an electrode substrate having separate electrodes opposed to the diaphragms; a reservoir substrate having a recess serving as a common droplet chamber for supplying droplets to the ejection chambers, through holes for transferring the droplets from the common droplet chamber to the ejection chambers, and nozzle communicating holes for transferring the droplets from the ejection chambers to the nozzle holes; and a driver IC that supplies a driving signal to the separate electrodes. The cavity substrate has a first hole, and the reservoir substrate has a second hole. The first hole and the second hole communicate with each other to form a housing. The driver IC is housed in the housing.
    • 液滴喷头包括具有多个喷嘴孔的喷嘴基板; 具有凹部的空腔基板,其底部用作隔膜,所述凹部用作喷射室; 具有与隔膜相对的分离电极的电极基板; 储存器基板,其具有用作向喷射室供应液滴的共同液滴室的凹槽,通过用于将液滴从共同液滴室传送到喷射室的孔,以及用于将液滴从喷射室传送到喷嘴的喷嘴连通孔 喷嘴孔; 以及向单独的电极提供驱动信号的驱动器IC。 空腔基板具有第一孔,并且储存器基板具有第二孔。 第一孔和第二孔彼此连通以形成壳体。 驱动器IC安装在外壳中。