公开(公告)号：US07549716B2

公开(公告)日：2009-06-23

申请号：US11427502

申请日：2006-06-29

申请人： Hitoshi Kida ,  Takahiro Yamada

发明人： Hitoshi Kida ,  Takahiro Yamada

IPC分类号： B41J29/38

CPC分类号： B41J2/04588 ,  B41J2/04516 ,  B41J2/04573 ,  B41J2/04581 ,  B41J2/14274 ,  B41J2202/06

摘要： The method of ejecting microdroplets of ink includes a first step for generating one ink column on the outside of the nozzle and for separating a tip end of the one ink column from a remaining part of the one ink column to form a microdroplet of ink on the outside of one nozzle, and a second step for controlling an ink volume velocity in the ink pressure chamber that is connected to the nozzle to generate another ink column and to push the another ink column out of the nozzle, thereby causing the another ink column to overtake and merge with the remaining part of the one ink column and to return into the nozzle while pulling the remaining part of the one ink column back into the nozzle.

摘要翻译： 喷出墨水微滴的方法包括：在喷嘴的外侧产生一个墨水柱并将一个墨水柱的末端与该墨水柱的剩余部分分开的第一步骤，以形成墨水的微滴 在一个喷嘴外部，以及第二步骤，用于控制连接到喷嘴的墨压力室中的墨水体积速度，以产生另一个墨水柱并将另一个墨水柱推出喷嘴，从而使另一个墨水柱 超过并与一个墨水柱的剩余部分合并并返回到喷嘴中，同时将一个墨水柱的剩余部分拉回到喷嘴中。

公开(公告)号：US09009973B2

公开(公告)日：2015-04-21

申请号：US12949972

申请日：2010-11-19

申请人： Takahiro Yamada ,  Tomohiko Koda ,  Hitoshi Kida

发明人： Takahiro Yamada ,  Tomohiko Koda ,  Hitoshi Kida

IPC分类号： B41J2/16 ,  H01L41/257 ,  H01L41/083 ,  B41J2/045 ,  B41J2/14

CPC分类号： B41J2/1612 ,  B41J2/04506 ,  B41J2/0456 ,  B41J2/04581 ,  B41J2/14201 ,  B41J2/14209 ,  B41J2/14233 ,  B41J2/14274 ,  B41J2/161 ,  B41J2/162 ,  H01L41/083 ,  H01L41/257 ,  Y10T29/42 ,  Y10T29/49004 ,  Y10T29/49169 ,  Y10T29/49401

摘要： A method for manufacturing a liquid discharging head, the method including forming a plurality of nozzles that discharge liquid droplets, forming a plurality of piezoelectric elements that generate pressure for discharging liquid droplets from the respective nozzles; and performing a repolarization process on the piezoelectric elements to set non-uniformity of the droplet discharging characteristics of the nozzles to be in a predetermined range by combining adjustment of a polarization sensitivity and adjustment of a polarization voltage for each of the piezoelectric elements.

摘要翻译： 一种液体排放头的制造方法，该方法包括：形成多个排出液滴的喷嘴;形成多个压电元件，其产生用于从各个喷嘴排出液滴的压力; 并通过组合调节偏振灵敏度和调节每个压电元件的极化电压来对压电元件执行复极化处理以将喷嘴的液滴喷射特性的不均匀性设定在预定范围内。

公开(公告)号：US07887151B2

公开(公告)日：2011-02-15

申请号：US12034468

申请日：2008-02-20

申请人： Takahiro Yamada ,  Hitoshi Kida ,  Tomohiko Koda

发明人： Takahiro Yamada ,  Hitoshi Kida ,  Tomohiko Koda

IPC分类号： B41J29/38

CPC分类号： B41J2/04581 ,  B41J2/04508 ,  B41J2/04541 ,  B41J2/04573

摘要： An image forming apparatus having a liquid ejection head including a plurality of nozzles for ejecting droplets and a plurality of piezoelectric elements for generating a pressure for discharging droplets in respective nozzles. The image forming apparatus includes a polarization adjustment unit that performs a polarization adjustment in parallel for adjustment of target nozzles.

摘要翻译： 一种具有液体喷射头的图像形成装置，该液体喷射头包括用于喷射液滴的多个喷嘴和用于产生用于在各个喷嘴中喷射液滴的压力的多个压电元件。 图像形成装置包括对目标喷嘴进行调整的并行进行偏振调整的偏光调整部。

公开(公告)号：US07744197B2

公开(公告)日：2010-06-29

申请号：US11382785

申请日：2006-05-11

申请人： Takahiro Yamada ,  Satoru Tobita ,  Hitoshi Kida ,  Kenichi Kugai ,  Nobuhiro Kurosawa

发明人： Takahiro Yamada ,  Satoru Tobita ,  Hitoshi Kida ,  Kenichi Kugai ,  Nobuhiro Kurosawa

IPC分类号： B41J2/045 ,  B41J29/393

CPC分类号： B41J2/04581 ,  B41J2/04506

摘要： A method for manufacturing an inkjet recording head includes an ejecting step, a measuring step, dividing step and applying step. The ejecting step ejects test ink droplets and print ink droplets from nozzles. The measuring step measures ejection results of the test ink droplets. The dividing step divides a plurality of nozzles into a plurality of groups based on the ejection results. The applying step applies a group-based polarizing voltage determined for each group to the piezoelectric elements belonging to a corresponding group to polarize the piezoelectric elements so that ejection results of the print ink droplets fall in a predetermined range.

摘要翻译： 一种喷墨记录头的制造方法包括：喷射步骤，测量步骤，分割步骤和涂布步骤。 喷射步骤喷射测试墨滴并从喷嘴打印墨滴。 测量步骤测量测试墨滴的喷射结果。 分割步骤基于喷射结果将多个喷嘴分成多个组。 施加步骤将为每组确定的基于组的极化电压施加到属于相应组的压电元件，以使压电元件偏振，使得打印墨滴的喷射结果落在预定范围内。

公开(公告)号：US20070002091A1

公开(公告)日：2007-01-04

申请号：US11427502

申请日：2006-06-29

申请人： Hitoshi Kida ,  Takahiro Yamada

发明人： Hitoshi Kida ,  Takahiro Yamada

IPC分类号： B41J29/393

CPC分类号： B41J2/04588 ,  B41J2/04516 ,  B41J2/04573 ,  B41J2/04581 ,  B41J2/14274 ,  B41J2202/06

摘要： The method of ejecting microdroplets of ink includes a first step for generating one ink column on the outside of the nozzle and for separating a tip end of the one ink column from a remaining part of the one ink column to form a microdroplet of ink on the outside of one nozzle, and a second step for controlling an ink volume velocity in the ink pressure chamber that is connected to the nozzle to generate another ink column and to push the another ink column out of the nozzle, thereby causing the another ink column to overtake and merge with the remaining part of the one ink column and to return into the nozzle while pulling the remaining part of the one ink column back into the nozzle.

摘要翻译： 喷出墨水微滴的方法包括：在喷嘴的外侧产生一个墨水柱并将一个墨水柱的末端与该墨水柱的剩余部分分开的第一步骤，以形成墨水的微滴 在一个喷嘴外部，以及第二步骤，用于控制连接到喷嘴的墨压力室中的墨水体积速度，以产生另一个墨水柱并将另一个墨水柱推出喷嘴，从而使另一个墨水柱 超过并与一个墨水柱的剩余部分合并并返回到喷嘴中，同时将一个墨水柱的剩余部分拉回到喷嘴中。

公开(公告)号：US20060268072A1

公开(公告)日：2006-11-30

申请号：US11382785

申请日：2006-05-11

申请人： Takahiro Yamada ,  Satoru Tobita ,  Hitoshi Kida ,  Kenichi Kugai ,  Nobuhiro Kurosawa

发明人： Takahiro Yamada ,  Satoru Tobita ,  Hitoshi Kida ,  Kenichi Kugai ,  Nobuhiro Kurosawa

IPC分类号： B41J2/045

CPC分类号： B41J2/04581 ,  B41J2/04506

摘要： A method for manufacturing an inkjet recording head includes an ejecting step, a measuring step, dividing step and applying step. The ejecting step ejects test ink droplets and print ink droplets from nozzles. The measuring step measures ejection results of the test ink droplets. The dividing step divides a plurality of nozzles into a plurality of groups based on the ejection results. The applying step applies a group-based polarizing voltage determined for each group to the piezoelectric elements belonging to a corresponding group to polarize the piezoelectric elements so that ejection results of the print ink droplets fall in a predetermined range.

摘要翻译： 一种喷墨记录头的制造方法包括：喷射步骤，测量步骤，分割步骤和涂布步骤。 喷射步骤喷射测试墨滴并从喷嘴打印墨滴。 测量步骤测量测试墨滴的喷射结果。 分割步骤基于喷射结果将多个喷嘴分成多个组。 施加步骤将为每组确定的基于组的极化电压施加到属于相应组的压电元件，以使压电元件偏振，使得打印墨滴的喷射结果落在预定范围内。

公开(公告)号：US07004560B2

公开(公告)日：2006-02-28

申请号：US10658712

申请日：2003-09-10

申请人： Takahiro Yamada ,  Hitoshi Kida ,  Hidetoshi Fujii

发明人： Takahiro Yamada ,  Hitoshi Kida ,  Hidetoshi Fujii

IPC分类号： B41J2/165

CPC分类号： B41J2/16532

摘要： A charge/deflecting electrode is provided on an orifice surface of an inkjet head near nozzle orifices formed in the orifice surface. A suction tube is pressed against the orifice surface and the electrode to retain a space therebetween. When a negative pressure is generated in a suction hole of the suction tube, ink and foreign matter are sucked from the nozzle orifices. The space is asymmetric on left and right sides so the negative pressure develops a whirlpool-shaped flow including a mixture of air and ink near the suction hole.

摘要翻译： 充电/偏转电极设置在喷嘴头的孔表面上，靠近形成在孔口表面的喷嘴孔。 吸管压靠孔口表面和电极以保持它们之间的空间。 当在抽吸管的吸入孔中产生负压时，墨水和异物从喷嘴孔吸出。 该空间在左侧和右侧是不对称的，因此负压产生包括抽吸孔附近的空气和墨水的混合物的漩涡形流。

公开(公告)号：US08087761B2

公开(公告)日：2012-01-03

申请号：US12213457

申请日：2008-06-19

申请人： Takahiro Yamada ,  Tomohiko Koda ,  Hitoshi Kida

发明人： Takahiro Yamada ,  Tomohiko Koda ,  Hitoshi Kida

IPC分类号： B41J2/045

CPC分类号： B41J2/1612 ,  B41J2/04506 ,  B41J2/0456 ,  B41J2/04581 ,  B41J2/14201 ,  B41J2/14209 ,  B41J2/14233 ,  B41J2/14274 ,  B41J2/161 ,  B41J2/162 ,  H01L41/083 ,  H01L41/257 ,  Y10T29/42 ,  Y10T29/49004 ,  Y10T29/49169 ,  Y10T29/49401

摘要： A liquid discharging head includes: a plurality of nozzles that discharge liquid droplets; and a plurality of piezoelectric elements that generate pressure for discharging liquid droplets from the respective nozzles, wherein the piezoelectric elements are performed with repolarization process to set non-uniformity of the droplet discharging characteristics of the nozzles to be in a predetermined range by combining adjustment of a polarization sensitivity and adjustment of a polarization voltage for each of the piezoelectric elements.

摘要翻译： 液体排出头包括：排出液滴的多个喷嘴; 以及多个压电元件，其产生用于从各个喷嘴排出液滴的压力，其中，通过复极化处理执行压电元件，以通过组合调节喷嘴将喷嘴的液滴喷射特性的不均匀性设定在预定范围内 偏振灵敏度和每个压电元件的极化电压的调节。

公开(公告)号：US07651203B2

公开(公告)日：2010-01-26

申请号：US11610152

申请日：2006-12-13

申请人： Takahiro Yamada ,  Hitoshi Kida ,  Satoru Tobita ,  Kenichi Kugai

发明人： Takahiro Yamada ,  Hitoshi Kida ,  Satoru Tobita ,  Kenichi Kugai

IPC分类号： B41J2/045

CPC分类号： B41J2/04588 ,  B41J2/0456 ,  B41J2/04581

摘要： A droplet ejecting device includes a nozzle unit, a piezoelectric member and a drive voltage generating unit. The piezoelectric member has a common electrode and a discrete electrode. A first differentiation by polarization voltage of a characteristic curve indicating change in a polarization of the piezoelectric member with respect to change in the polarization voltage has a plurality of extremal values including a first extremal value at a prescribed positive voltage Vbp that is the smallest polarization voltage among plus polarization voltages corresponding to the plurality of extremal values, and a second extremal value at a prescribed negative voltage Vbn that is the largest polarization voltage among minus polarization voltages corresponding to the plurality of extremal values. The drive voltage generating unit generates a drive voltage having a range between a first negative voltage Ve1 and a first positive voltage Ve2, and applies the drive voltage between the common electrode and the discrete electrode. Vbp, Vbn, Ve1, and Ve2 are set such that Vbn

摘要翻译： 液滴喷射装置包括喷嘴单元，压电构件和驱动电压产生单元。 压电元件具有公共电极和分立电极。 指示压电元件的极化相对于极化电压的变化的特性曲线的极化电压的第一微分值具有多个极值，包括作为最小极化电压的规定正电压Vbp的第一极值 在与多个极值对应的正极化电压之间的第二极值和在与多个极值对应的负极化电压之中的最大极化电压的规定负电压Vbn处的第二极值。 驱动电压产生单元产生具有第一负电压Ve1和第一正电压Ve2之间的范围的驱动电压，并且在公共电极和离散电极之间施加驱动电压。 Vbp，Vbn，Ve1和Ve2被设置为使得Vbn

公开(公告)号：US20070132813A1

公开(公告)日：2007-06-14

申请号：US11610152

申请日：2006-12-13

申请人： Takahiro Yamada ,  Hitoshi Kida ,  Satoru Tobita ,  Kenichi Kugai

发明人： Takahiro Yamada ,  Hitoshi Kida ,  Satoru Tobita ,  Kenichi Kugai

IPC分类号： B41J2/045

CPC分类号： B41J2/04588 ,  B41J2/0456 ,  B41J2/04581

摘要： A droplet ejecting device includes a nozzle unit, a piezoelectric member and a drive voltage generating unit. The piezoelectric member has a common electrode and a discrete electrode. A first differentiation by polarization voltage of a characteristic curve indicating change in a polarization of the piezoelectric member with respect to change in the polarization voltage has a plurality of extremal values including a first extremal value at a prescribed positive voltage Vbp that is the smallest polarization voltage among plus polarization voltages corresponding to the plurality of extremal values, and a second extremal value at a prescribed negative voltage Vbn that is the largest polarization voltage among minus polarization voltages corresponding to the plurality of extremal values. The drive voltage generating unit generates a drive voltage having a range between a first negative voltage Ve1 and a first positive voltage Ve2, and applies the drive voltage between the common electrode and the discrete electrode. Vbp, Vbn, Ve1, and Ve2 are set such that Vbn

摘要翻译： 液滴喷射装置包括喷嘴单元，压电构件和驱动电压产生单元。 压电元件具有公共电极和分立电极。 指示压电元件的极化相对于极化电压的变化的特性曲线的极化电压的第一微分值具有多个极值，包括作为最小极化电压的规定正电压Vbp的第一极值 在与多个极值对应的正极化电压之间的第二极值和在与多个极值对应的负极化电压之中的最大极化电压的规定负电压Vbn处的第二极值。 驱动电压产生单元产生具有第一负电压Ve 1和第一正电压Ve 2之间的范围的驱动电压，并且在公共电极和离散电极之间施加驱动电压。 Vbp，Vbn，Ve1和Ve2被设置为使得Vbn