公开(公告)号：US20130157855A1

公开(公告)日：2013-06-20

申请号：US13634076

申请日：2011-03-14

申请人： Junhua Zhang ,  Frank C. Kohn ,  Daniel R. Wright ,  Andrew D. Dyszlewski ,  William Abraham ,  John W. Hemminghaus

发明人： Junhua Zhang ,  Frank C. Kohn ,  Daniel R. Wright ,  Andrew D. Dyszlewski ,  William Abraham ,  John W. Hemminghaus

IPC分类号： A01N57/20 ,  A01N43/60 ,  A01N43/653

摘要： Compositions for improving plant health, the compositions comprising at least one water-soluble pesticide and at least one non-herbicidal water-insoluble agrochemical, are described. Also described are processes for preparing the compositions and methods of improving agronomic crop plant health using the compositions.

摘要翻译： 描述了用于改善植物健康的组合物，包含至少一种水溶性农药和至少一种非除草性水不溶性农药的组合物。 还描述了使用组合物制备改善农作物植物健康的组合物和方法的方法。

公开(公告)号：US07862135B2

公开(公告)日：2011-01-04

申请号：US11923441

申请日：2007-10-24

申请人： Junhua Zhang

发明人： Junhua Zhang

IPC分类号： B41J29/38

CPC分类号： B41J2/04596 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2/04593 ,  B41J2/14274 ,  B41J2002/14419

摘要： A method of driving a liquid ejecting head is provided. The liquid ejecting head varies pressure of a liquid in a pressure-generating chamber as a result of operating a pressure-generating element by supplying an ejection pulse, to eject liquid drops from a nozzle opening due to the pressure variation. The method includes performing a first contraction and performing a second contraction. In the first contraction, the liquid drops are ejected from the nozzle opening as a result of contracting the pressure-generating chamber. In the second contraction, the pressure-generating chamber is contracted so as to reduce withdrawal towards the pressure-generating chamber, of a meniscus after the ejection of the liquid drops A time from a start of the first contraction to a start of the second contraction is between ¼ to ¾ of a Helmholtz vibration period Tc of the pressure-generating chamber. A time of the first contraction is less than or equal to a natural vibration period Ta of the pressure-generating element.

摘要翻译： 提供驱动液体喷射头的方法。 液体喷射头通过提供喷射脉冲来操作压力产生元件，从而改变压力发生室中的液体的压力，由于压力变化而从喷嘴开口喷出液滴。 该方法包括执行第一收缩并执行第二收缩。 在第一次收缩时，由于收缩压力发生室，液滴从喷嘴开口喷出。 在第二收缩期间，压力产生室收缩，以便减少朝向压力产生室的向液体喷射之后的弯月面的抽出。从第一次收缩开始到第二次收缩开始的时间 在压力发生室的亥姆霍兹振动周期Tc的¼〜¾之间。 第一次收缩的时间小于或等于压力产生元件的固有振动周期Ta。

公开(公告)号：US07695083B2

公开(公告)日：2010-04-13

申请号：US11737278

申请日：2007-04-19

申请人： Junhua Zhang

发明人： Junhua Zhang

IPC分类号： B41J2/195 ,  B41J29/393 ,  B41J2/175

CPC分类号： B41J2/17566

摘要： A printing apparatus to which a printing material container is detachably mounted, the printing material container having a piezoelectric element for detecting the amount of material stored in the container and a memory unit storing the natural vibration frequency of the piezoelectric element, the printing apparatus comprising means for acquiring the frequency information from the memory unit, means for generating a drive having a first signal waveform at a first frequency and a second signal waveform at a second frequency different from the first frequency, means for selectively supplying either the first or second signal waveform to the piezoelectric element so as to increase the amplitude of the vibrations of the piezoelectric element; means for detecting a response signal, means for measuring the vibration frequency contained in the response signal, and means for determining the amount of material stored in the printing material container based on the measured vibration frequency.

摘要翻译： 一种印刷装置，其中可拆卸地安装印刷材料容器，所述印刷材料容器具有用于检测存储在所述容器中的材料量的压电元件和存储所述压电元件的固有振动频率的存储单元，所述打印装置包括装置 用于从存储器单元获取频率信息的装置，用于产生具有第一频率的第一信号波形的驱动器和不同于第一频率的第二频率的第二信号波形的装置，用于选择性地提供第一或第二信号波形 以增加压电元件的振动的振幅; 用于检测响应信号的装置，用于测量响应信号中包含的振动频率的装置，以及用于基于测量的振动频率确定存储在打印材料容器中的材料量的装置。

公开(公告)号：US07618105B2

公开(公告)日：2009-11-17

申请号：US11109071

申请日：2005-04-19

申请人： Tomoaki Takahashi ,  Junhua Zhang

发明人： Tomoaki Takahashi ,  Junhua Zhang

IPC分类号： B41J29/393 ,  B41J2/195 ,  B41J2/175

CPC分类号： B41J2/17566

摘要： The invention relates to a liquid sensor which can certainly judge the existence of liquid, and a liquid container including the sensor. A liquid sensor 60 in which a piezoelectric element having a piezoelectric layer 47 on both surfaces of which electrodes 46 and 49 are formed is used, and a bottom 43a of a cavity 43 for receiving liquid as a detection object is vibrated. The sensor 60 includes a vibration cavity forming base portion 40 in which the cavity 43 having the vibratable bottom 43a is formed, and a flow path forming base portion 50 laminated on the vibration cavity forming base portion 40. A liquid supply path 53 for supplying the liquid as the detection object to the cavity 43 and a liquid discharge path 54 for discharging the liquid as the detection object from the cavity 43 are formed in the flow path forming base portion 50.

摘要翻译： 本发明涉及一种能够肯定地判断液体存在的液体传感器和包括传感器的液体容器。 使用其中形成有电极46和49的两个表面上的压电层47的压电元件的液体传感器60，并且用于接收液体作为检测对象的空腔43的底部43a振动。 传感器60包括形成有可振动底部43a的空腔43的振动腔形成基部40和层叠在振动腔形成基部40上的流路形成基部50.液体供给路53 作为检测对象的液体作为检测对象的空腔43和用于将作为检测对象的液体从空腔43排出的液体排出路径54形成在流路形成基部50中。

公开(公告)号：US07600847B2

公开(公告)日：2009-10-13

申请号：US11749071

申请日：2007-05-15

申请人： Junhua Zhang

发明人： Junhua Zhang

IPC分类号： B41J29/393 ,  B41J2/195 ,  B41J2/175

CPC分类号： B41J2/1752 ,  B41J2/17546 ,  B41J2/17566

摘要： A printing apparatus and method for detecting the amount of a printing material in a detachable printing material container comprised of a piezoelectric element and a memory in which frequency information is stored. The printing apparatus further comprises an acquiring unit that acquires the frequency information from the memory; a supplying unit that supplies a driving signal to be used for driving the piezoelectric element based on the frequency information of a first driving signal having a first frequency and a second driving signal having a second frequency that is different from the first frequency; a detecting unit that detects a response signal in response to the vibration of the piezoelectric element; a measuring unit that measures vibration frequency contained in the response signal; and a determining unit that determines the amount of the printing material contained in the printing material container based on the measured vibration frequency.

摘要翻译： 一种用于检测由压电元件和其中存储频率信息的存储器组成的可拆卸打印材料容器中的打印材料量的打印装置和方法。 打印装置还包括从存储器获取频率信息的获取单元; 提供单元，其基于具有第一频率的第一驱动信号和具有与第一频率不同的第二频率的第二驱动信号的频率信息来提供用于驱动压电元件的驱动信号; 检测单元，其响应于所述压电元件的振动而检测响应信号; 测量单元，其测量响应信号中包含的振动频率; 以及确定单元，其基于测量的振动频率来确定包含在打印材料容器中的打印材料的量。