LIQUID EJECTING APPARATUS
    9.
    发明申请
    LIQUID EJECTING APPARATUS 有权
    液体喷射装置

    公开(公告)号:US20110102514A1

    公开(公告)日:2011-05-05

    申请号:US12914210

    申请日:2010-10-28

    申请人: Takayuki YONEMURA

    发明人: Takayuki YONEMURA

    IPC分类号: B41J2/045

    摘要: Provided is a liquid ejecting apparatus which comprises a pressure generation chamber, a piezoelectric element, and a driving unit which supplies a driving signal to the piezoelectric element. The piezoelectric layer shows electric field induced phase transition and when among voltages at which the piezoelectric layer shows the electric field induced phase transition a voltage having a higher absolute value is defined as VF and a voltage having a lower absolute value is defined as VAF, the driving unit supplies to the piezoelectric element a driving signal which allows the voltage to be applied to the piezoelectric layer, allows the voltage that passes through VF and of which the absolute value is equal to or higher than VAF to be set as a start point, and allows the voltage to be changed within a range where the absolute value is equal to or higher than VAF.

    摘要翻译: 提供一种液体喷射装置,其包括压力产生室,压电元件和向压电元件提供驱动信号的驱动单元。 压电层显示电场感应相变,当在压电层显示电场感应相变的电压中,具有较高绝对值的电压定义为VF,具有较低绝对值的电压定义为VAF时, 驱动单元向压电元件提供允许施加到压电层的电压的驱动信号,允许将通过VF的绝对值等于或高于VAF的电压设置为起始点, 并允许在绝对值等于或高于VAF的范围内改变电压。

    LIQUID-EJECTING HEAD AND LIQUID-EJECTING APPARATUS
    10.
    发明申请
    LIQUID-EJECTING HEAD AND LIQUID-EJECTING APPARATUS 有权
    液体喷射和液体喷射装置

    公开(公告)号:US20110216135A1

    公开(公告)日:2011-09-08

    申请号:US13040627

    申请日:2011-03-04

    申请人: Takayuki YONEMURA

    发明人: Takayuki YONEMURA

    IPC分类号: B41J2/045

    摘要: A liquid-ejecting head includes a pressure-generating chamber communicating with a nozzle opening and includes a piezoelectric element including a piezoelectric layer and electrodes. The piezoelectric layer contains bismuth sodium potassium titanate and satisfies the inequality 0≦Pr/Pm≦0.25 at 25° C., where Pm and Pr are the saturation polarization and remanent polarization, respectively, of the piezoelectric layer.

    摘要翻译: 液体喷射头包括与喷嘴开口连通的压力产生室,并且包括具有压电层和电极的压电元件。 压电层含有钛酸铋钾,在25℃下满足不等式0≦̸ Pr / Pm≦̸ 0.25,其中Pm和Pr分别是压电层的饱和极化和剩余极化。