公开(公告)号：US08801147B2

公开(公告)日：2014-08-12

申请号：US13600456

申请日：2012-08-31

申请人： Ryutaro Kusunoki ,  Chiaki Tanuma ,  Shuhei Yokoyama ,  Ryuichi Arai

发明人： Ryutaro Kusunoki ,  Chiaki Tanuma ,  Shuhei Yokoyama ,  Ryuichi Arai

IPC分类号： B41J2/14

CPC分类号： B41J2/14201 ,  B41J2/14137 ,  B41J2/14233 ,  B41J2202/11 ,  B41J2202/15

摘要： According to one embodiment, an inkjet head includes a substrate, a nozzle plate, and an actuator incorporated in the nozzle plate. The nozzle plate includes a nozzle provided to communicate with an ink pressure chamber, and a vibrating plate exposed to the ink pressure chamber. The actuator displaces the vibrating plate in the thickness direction to pressurize ink in the ink pressure chamber via the vibrating plate and eject the ink from the nozzle. The ink pressure chamber has a first dimension in the thickness direction of the substrate and a second dimension in a direction orthogonal to the thickness direction of the substrate. The first dimension is larger than the second dimension.

摘要翻译： 根据一个实施例，喷墨头包括衬底，喷嘴板和结合在喷嘴板中的致动器。 喷嘴板包括设置成与墨压力室连通的喷嘴和暴露于墨压室的振动板。 致动器沿着厚度方向移动振动板，以通过振动板对墨水压力室中的墨水加压，并从喷嘴喷出墨水。 墨水压力室在基板的厚度方向上具有第一尺寸，并且在与基板的厚度方向正交的方向上具有第二尺寸。 第一个维度大于第二个维度。

公开(公告)号：US08733898B2

公开(公告)日：2014-05-27

申请号：US12718916

申请日：2010-03-05

申请人： Ryutaro Kusunoki

发明人： Ryutaro Kusunoki

IPC分类号： B41J2/14

CPC分类号： B41J2/1433 ,  B41J2002/14475 ,  B41J2202/10

摘要： Disclosed is an ink jet head for ejecting an ink droplet to form an image on a recording medium, including a pressure chamber to which ink is supplied, an actuator which applies a pressure on the ink filled in the pressure chamber to eject the ink droplet, a circuit applying to the actuator a drive-waveform for sequentially ejecting one or more ink droplets to form one pixel, the one ink droplet having V in volume, and a nozzle plate which has a nozzle fluidly communicating with the pressure chamber to eject ink droplet therefrom, the nozzle having a stepped inner surface shaped to include an inlet communicating with the pressure chamber and having a first sectional area in an orthogonal plane to ink-ejecting direction, and to include an outlet communicating with the inlet and having a length Ln1 in the ink-ejecting direction and a second sectional area C1 in the orthogonal plane smaller than the first sectional area, the Ln1, C1, and V being satisfied the relationship of 0.5≦Ln1/(V/C1)≦1.0. The ink jet head provides a high print quality while preventing a variation in volume of ink droplet ejected from the nozzle.

摘要翻译： 公开了一种用于喷射墨滴以在记录介质上形成图像的喷墨头，包括供给墨的压力室，对填充在压力室中的墨水施加压力以喷射墨滴的致动器， 向致动器施加用于顺序地喷射一个或多个墨滴以形成一个像素的驱动波形的电路，该体积具有V的一个墨滴和具有与压力室流体连通以喷射墨滴的喷嘴板 其特征在于，所述喷嘴具有阶梯状的内表面，其形状为包括与所述压力室连通并具有与喷墨方向正交的平面的第一截面积的入口，并且包括与所述入口连通并具有长度Ln1的出口 喷墨方向和比第一截面积小的正交平面中的第二截面积C1，Ln1，C1和V满足关系0.5＆nlE; Ln1 /（ V / C1）＆nlE; 1.0。 喷墨头提供高打印质量，同时防止从喷嘴喷射的墨滴的体积变化。

公开(公告)号：US08678531B2

公开(公告)日：2014-03-25

申请号：US13224201

申请日：2011-09-01

申请人： Ryutaro Kusunoki

发明人： Ryutaro Kusunoki

IPC分类号： B41J29/38

CPC分类号： B41J2/04588 ,  B41J2/04573 ,  B41J2/04581 ,  B41J2/04595 ,  B41J2/04596 ,  B41J2202/10

摘要： According to one embodiment, a driving apparatus of an inkjet head includes a drive signal output unit, an ejection pulse number decision unit, a pulse addition determination unit, and a drive signal generation unit. The ejection pulse number decision unit decides the number of ejection pulses based on a gradation value of print data. When the pulse addition determination unit has determined that the control pulse is not to be added, the drive signal generation unit generates a drive signal including ejection pulses whose number has been decided by the ejection pulse number decision unit. When the pulse addition determination unit has determined that the control pulse is to be added, the drive signal generation unit generates a drive signal including ejection pulses whose number is smaller than the number decided by the ejection pulse number decision unit.

摘要翻译： 根据一个实施例，喷墨头的驱动装置包括驱动信号输出单元，喷射脉冲数决定单元，脉冲加法确定单元和驱动信号生成单元。 喷射脉冲数决定单元基于打印数据的灰度值来决定喷射脉冲数。 当脉冲添加确定单元确定不添加控制脉冲时，驱动信号生成单元产生包括由喷射脉冲数决定单元确定的喷射脉冲的驱动信号。 当脉冲添加确定单元确定要添加控制脉冲时，驱动信号产生单元产生包括喷射脉冲的驱动信号，该喷射脉冲的数量小于由喷射脉冲数量决定单元确定的数量。

公开(公告)号：US20130222481A1

公开(公告)日：2013-08-29

申请号：US13412755

申请日：2012-03-06

申请人： Shuhei Yokoyama ,  Ryutaro Kusunoki ,  Chiaki Tanuma ,  Ryuichi Arai

发明人： Shuhei Yokoyama ,  Ryutaro Kusunoki ,  Chiaki Tanuma ,  Ryuichi Arai

IPC分类号： B41J2/16 ,  B23P17/00

CPC分类号： B41J2/14201 ,  B41J2/1607 ,  B41J2/1623 ,  B41J2/1628 ,  B41J2/1631 ,  B41J2/1632 ,  B41J2/1642 ,  B41J2/1643 ,  B41J2/1645 ,  B41J2/1646 ,  B41J2002/1437 ,  B41J2202/15 ,  Y10T29/49401

摘要： An inkjet head includes a nozzle plate in which a nozzle having an ejection hole for ink is formed, an ink pressure chamber for supplying the ink to the nozzle, a first oscillating plate formed to surround the ejection hole of the nozzle of the nozzle plate, a first electrode formed to surround the nozzle of the nozzle plate and that is in contact with the first oscillating plate, a piezoelectric film configured to surround the nozzle of the nozzle plate and that is in contact with the first electrode, a second electrode formed to surround the nozzle of the nozzle plate and that is in contact with the piezoelectric film or the first oscillating plate, and a second oscillating plate formed to surround the nozzle of the nozzle plate and that is in contact with the first electrode, the second electrode, or the first oscillating plate.

摘要翻译： 喷墨头包括喷嘴板，其中形成有用于油墨的喷射孔的喷嘴，用于将油墨供应到喷嘴的油墨压力室，形成为围绕喷嘴板的喷嘴的喷射孔的第一振动板， 形成为围绕喷嘴板的喷嘴并与第一振动板接触的第一电极，构造成围绕喷嘴板的喷嘴并与第一电极接触的压电膜，形成为 围绕喷嘴板的喷嘴并与压电膜或第一振动板接触的第二振荡板，以及围绕喷嘴板的喷嘴并与第一电极，第二电极接触的第二振荡板， 或第一振荡板。

公开(公告)号：US08469489B2

公开(公告)日：2013-06-25

申请号：US12689199

申请日：2010-01-18

申请人： Masashi Seki ,  Ryutaro Kusunoki ,  Chiaki Tanuma

发明人： Masashi Seki ,  Ryutaro Kusunoki ,  Chiaki Tanuma

IPC分类号： B41J2/14 ,  B41J2/045

CPC分类号： B41J2/1609 ,  B41J2/1634 ,  B41J2/1642 ,  B41J2/1643 ,  B41J2/1646 ,  Y10T29/49401

摘要： An inkjet print head is fabricated by forming an electrode and two protection film layers composed of an inorganic insulating film and an organic insulating film over the electrode within a groove of a piezoelectric member, adhering a top board to the piezoelectric member covering the groove to form a pressure chamber, adhering a polyimide plate to cover the groove, and then forming a nozzle in the polyimide plate by the excimer laser processing aligning to the pressure chamber. The excimer laser light penetrates the polyimide plate to form a nozzle is then emitted on the organic insulating film. Consequently, part of the organic insulating film is damaged by the laser light. To prevent this damage, the thickness of the inorganic insulating film in the part to which the excimer laser light is emitted is prepared to be 0.5 μm or more.

摘要翻译： 通过在压电元件的沟槽内的电极上形成电极和由无机绝缘膜和有机绝缘膜构成的两个保护膜层来制造喷墨打印头，将顶板粘附到覆盖凹槽的压电元件上形成 压力室，粘合聚酰亚胺板以覆盖凹槽，然后通过与压力室对准的准分子激光加工在聚酰亚胺板中形成喷嘴。 准分子激光穿过聚酰亚胺板形成喷嘴然后在有机绝缘膜上发射。 因此，有机绝缘膜的一部分被激光损坏。 为了防止这种损伤，准备发射准分子激光的部分中的无机绝缘膜的厚度为0.5μm以上。

公开(公告)号：US20120056947A1

公开(公告)日：2012-03-08

申请号：US13224966

申请日：2011-09-02

申请人： Chiaki Tanuma ,  Shuhei Yokoyama ,  Ryuichi Arai ,  Ryutaro Kusunoki

发明人： Chiaki Tanuma ,  Shuhei Yokoyama ,  Ryuichi Arai ,  Ryutaro Kusunoki

IPC分类号： B41J2/045 ,  B23P11/00

CPC分类号： B41J2/14233 ,  B41J2/161 ,  B41J2/1631 ,  B41J2/1646 ,  B41J2002/1437 ,  B41J2202/15 ,  Y10T29/49401

摘要： An inkjet head including: a nozzle plate including: a nozzle configured to eject ink; a first electrode formed to surround the nozzle; a piezoelectric film provided to surround the nozzle and in contact with the first electrode; and a second electrode formed in contact with the piezoelectric film and made of a metal material forming the nozzle; and an ink supply path for supplying the ink to the nozzle.

摘要翻译： 一种喷墨头，包括：喷嘴板，包括：喷嘴，其被配置为喷射墨; 形成为围绕所述喷嘴的第一电极; 设置成围绕喷嘴并与第一电极接触的压电膜; 以及与形成所述喷嘴的金属材料形成为与所述压电膜接触的第二电极; 以及用于将油墨供应到喷嘴的供墨路径。

公开(公告)号：US20100245475A1

公开(公告)日：2010-09-30

申请号：US12689199

申请日：2010-01-18

申请人： Seki Masashi ,  Ryutaro Kusunoki ,  Chiaki Tanuma

发明人： Seki Masashi ,  Ryutaro Kusunoki ,  Chiaki Tanuma

IPC分类号： B41J2/135 ,  B23P17/00 ,  B23K26/00

CPC分类号： B41J2/1609 ,  B41J2/1634 ,  B41J2/1642 ,  B41J2/1643 ,  B41J2/1646 ,  Y10T29/49401

摘要： An inkjet print head is fabricated by, fist, forming an electrode and two layers of a protection film composed of an inorganic insulating film and an organic insulating film over the electrode within a groove of a piezoelectric member, adhering a top board to the piezoelectric member covering the groove to form a pressure chamber, adhering a polyimide plate so as to cover the groove, and then forming a nozzle in the polyimide plate by the excimer laser processing aligning to the pressure chamber. Herein, the excimer laser light penetrates the polyimide plate to form a nozzle, and further proceeds to be emitted on the organic insulating film. Consequently, the part of the organic insulating film irradiated by the laser light is damaged. To prevent the damage of the organic insulating film, the thickness of the inorganic insulating film in the part to which the excimer laser light is emitted is prepared to be 0.5 μm or more.

摘要翻译： 通过在压电元件的沟槽内的电极上形成电极和形成由无机绝缘膜和有机绝缘膜构成的两层保护膜的喷墨打印头，将顶板粘附到压电元件 覆盖凹槽以形成压力室，粘附聚酰亚胺板以覆盖凹槽，然后通过与压力室对准的准分子激光加工在聚酰亚胺板中形成喷嘴。 这里，准分子激光穿过聚酰亚胺板形成喷嘴，并进一步发射到有机绝缘膜上。 因此，被激光照射的部分有机绝缘膜被损坏。 为了防止有机绝缘膜的损伤，准备发射准分子激光的部分中的无机绝缘膜的厚度为0.5μm以上。

公开(公告)号：US20100238215A1

公开(公告)日：2010-09-23

申请号：US12718916

申请日：2010-03-05

申请人： Ryutaro KUSUNOKI

发明人： Ryutaro KUSUNOKI

IPC分类号： B41J29/38 ,  B41J2/14

CPC分类号： B41J2/1433 ,  B41J2002/14475 ,  B41J2202/10

摘要： Disclosed is an ink jet head for ejecting an ink droplet to form an image on a recording medium, including a pressure chamber to which ink is supplied, an actuator which applies a pressure on the ink filled in the pressure chamber to eject the ink droplet, a circuit applying to the actuator a drive-waveform for sequentially ejecting one or more ink droplets to form one pixel, the one ink droplet having V in volume, and a nozzle plate which has a nozzle fluidly communicating with the pressure chamber to eject ink droplet therefrom, the nozzle having a stepped inner surface shaped to include an inlet communicating with the pressure chamber and having a first sectional area in an orthogonal plane to ink-ejecting direction, and to include an outlet communicating with the inlet and having a length Ln1 in the ink-ejecting direction and a second sectional area C1 in the orthogonal plane smaller than the first sectional area, the Ln1, C1, and V being satisfied the relationship of 0.5≦Ln1/(V/C1)≦1.0. The ink jet head provides a high print quality while preventing a variation in volume of ink droplet ejected from the nozzle.

摘要翻译： 公开了一种用于喷射墨滴以在记录介质上形成图像的喷墨头，包括供给墨的压力室，对填充在压力室中的墨水施加压力以喷射墨滴的致动器， 向致动器施加用于顺序地喷射一个或多个墨滴以形成一个像素的驱动波形的电路，该体积具有V的一个墨滴和具有与压力室流体连通以喷射墨滴的喷嘴板 其特征在于，所述喷嘴具有阶梯状的内表面，其形状为包括与所述压力室连通并具有与喷墨方向正交的平面的第一截面积的入口，并且包括与所述入口连通并具有长度Ln1的出口 喷墨方向和比第一截面积小的正交平面中的第二截面积C1，Ln1，C1和V满足关系0.5＆nlE; Ln1 /（ V / C1）＆nlE; 1.0。 喷墨头提供高打印质量，同时防止从喷嘴喷射的墨滴的体积变化。

公开(公告)号：US20100177147A1

公开(公告)日：2010-07-15

申请号：US12700551

申请日：2010-02-04

申请人： Ryutaro Kusunoki ,  Tomoka Takanose ,  Toshio Miyazawa

发明人： Ryutaro Kusunoki ,  Tomoka Takanose ,  Toshio Miyazawa

IPC分类号： B41J2/045

CPC分类号： B41J2/19 ,  B41J2/16585 ,  B41J2/175 ,  B41J2/17506 ,  B41J2/195 ,  H05K3/1241

摘要： An inkjet recording apparatus comprises an inkjet recording head, an ink-testing unit having an ink-test chamber, a pressure-vibration generating unit that generates a pressure vibration in the ink-test chamber, a pressure-vibration detecting unit that detects the pressure vibration, an ink inlet that introduces ink into the ink-test chamber and an ink outlet through which ink is discharged from the ink-test chamber. Failures of ink ejection can be prevented by detecting cavitation cores by the ink-test chamber and removing ink containing the cavitation cores from ink supplied to the inkjet recording head.

摘要翻译： 喷墨记录装置包括喷墨记录头，具有油墨测试室的油墨测试单元，在油墨测试室中产生压力振动的压力振动产生单元，检测压力的压力振动检测单元 振动，将墨水引入墨水测试室的墨水入口和墨水从墨水测试室排出的墨水出口。 通过检测油墨测试室的空化核心并从供应给喷墨记录头的油墨中除去含有空化核心的墨水，可以防止喷墨失败。

公开(公告)号：US20070285455A1

公开(公告)日：2007-12-13

申请号：US11758904

申请日：2007-06-06

申请人： RYUTARO KUSUNOKI ,  Tomoka Takanose ,  Toshio Miyazawa

发明人： RYUTARO KUSUNOKI ,  Tomoka Takanose ,  Toshio Miyazawa

IPC分类号： B41J29/393

CPC分类号： B41J2/19 ,  B41J2/16585 ,  B41J2/175 ,  B41J2/17506 ,  B41J2/195 ,  H05K3/1241

摘要： An inkjet recording apparatus comprises an inkjet recording head, an ink-testing unit having an ink-test chamber, a pressure-vibration generating unit that generates a pressure vibration in the ink-test chamber, a pressure-vibration detecting unit that detects the pressure vibration, an ink inlet that introduces ink into the ink-test chamber and an ink outlet through which ink is discharged from the ink-tester chamber. Failures of ink ejection can be prevented by detecting cavitation cores by the ink-test chamber and removing ink containing the cavitation cores from ink supplied to the inkjet recording head.

摘要翻译： 喷墨记录装置包括喷墨记录头，具有油墨测试室的油墨测试单元，在油墨测试室中产生压力振动的压力振动产生单元，检测压力的压力振动检测单元 振动，将墨水引入墨水测试室的墨水入口和从墨水测试室排出墨水的墨水出口。 通过检测油墨测试室的空化核心并从供应给喷墨记录头的油墨中除去含有空化核心的墨水，可以防止喷墨失败。