公开(公告)号：US09085153B2

公开(公告)日：2015-07-21

申请号：US14103900

申请日：2013-12-12

Applicant: SII PRINTEK INC.

Inventor： Yoshinori Domae

IPC: B41J2/045 ,  B41J2/16 ,  B41J2/14

CPC classification number: B41J2/161 ,  B41J2/14209 ,  B41J2002/14491 ,  Y10T29/49401

Abstract: A liquid jet head includes an actuator substrate on which a plurality of grooves is arranged, and a nozzle plate having nozzle holes communicated with the grooves. Drive electrodes extend in the longitudinal direction along both side surfaces of a wall portion of the grooves. An insulating film is disposed between the wall portion and the longitudinal end portions of the drive electrodes so that only the mid-portion of the drive elecrodes directly contacts the side surfaces of the wall portion. When a voltage is applied to the drive electrodes, only the region of the wall portion in the vicinity of the nozzle holes is actuated to eject liquid from the nozzle holes.

Abstract translation: 液体喷射头包括其上布置有多个槽的致动器基板和具有与槽连通的喷嘴孔的喷嘴板。 驱动电极沿着槽的壁部的两侧面沿长度方向延伸。 绝缘膜设置在驱动电极的壁部分和纵向端部之间，使得只有驱动电极的中间部分直接接触壁部分的侧表面。 当向驱动电极施加电压时，只有喷嘴孔附近的壁部分的区域被致动以从喷嘴孔喷出液体。

公开(公告)号：US08939553B2

公开(公告)日：2015-01-27

申请号：US13845655

申请日：2013-03-18

Applicant: SII Printek Inc.

Inventor： Yoshinori Domae ,  Yuki Yamamura

IPC: B41J2/045 ,  B41J2/145 ,  B41J2/14

CPC classification number: B41J2/145 ,  B41J2/14209 ,  B41J2202/12

Abstract: A head chip for a liquid jet head of a recording apparatus has liquid jet channels arranged in a longitudinal direction of the head chip, and nozzle holes that communicate with the liquid jet channels. A flow path plate covers the liquid jet channels and has first and second circulation paths that extend in the longitudinal direction of the head chip and communicate with the liquid jet channels to supply liquid thereto. First and second inflow ports are provided at opposite longitudinal ends of the head chip for inflowing liquid into the first and second circulation paths, respectively, so that liquid flows through the first and second circulation paths in opposite directions while being supplied to the liquid jet channels. The sum of pressures of liquid supplied to each liquid jet channel from the first and second circulation paths is uniform throughout the longitudinal direction of the head chip so that high image quality is realized.

Abstract translation: 用于记录装置的液体喷射头的头部芯片具有沿着头部芯片的纵向布置的液体喷射通道和与液体喷射通道连通的喷嘴孔。 流路板覆盖液体喷射通道，并且具有在头部芯片的纵向方向上延伸的第一和第二循环路径，并与液体喷射通道连通以向其提供液体。 第一和第二流入口设置在头部芯片的相对的纵向端部处，用于将液体分别流入第一和第二循环路径，使得液体沿相反方向流过第一和第二循环路径，同时被供应到液体喷射通道 。 从第一和第二循环路径供给到每个液体喷射通道的液体的压力的总和在头部芯片的纵向方向上是均匀的，从而实现高图像质量。

公开(公告)号：US09616673B2

公开(公告)日：2017-04-11

申请号：US14062003

申请日：2013-10-24

Applicant: SII PRINTEK INC.

Inventor： Yoshinori Domae

IPC: B41J2/18

CPC classification number: B41J2/18

Abstract: A liquid jet unit includes a circulation path through which liquid is circulated, and a liquid jet head having an inflow port and an outflow port between which is disposed a flow path forming a part of the circulation path, and a nozzle communicating with the flow path and configured to eject liquid from the liquid jet head. A liquid pump is inserted into the circulation path for circulating liquid in the circulation path. A supply path is connected to the circulation path for supplying liquid to the circulation path. A pressure sensor detects the pressure of liquid in the circulation path and generates corresponding pressure information. The liquid pump is configured to change an amount of liquid to be fed on the basis of the pressure information generated to maintain liquid in the nozzle at a predetermined pressure and draw liquid into the circulation path from the supply path.

公开(公告)号：US09352565B2

公开(公告)日：2016-05-31

申请号：US14065872

申请日：2013-10-29

Applicant: SII PRINTEK INC.

Inventor： Yoshinori Domae ,  Yuzuru Kubota ,  Satoshi Horiguchi

IPC: B41J2/045 ,  B41J2/18 ,  B41J2/14 ,  B41J2/16

CPC classification number: B41J2/14209 ,  B41J2/1609 ,  B41J2/18 ,  B41J2202/12

Abstract: A liquid jet head includes an actuator substrate having an alternating array of ejection grooves and non-ejection grooves which penetrate from an upper surface to a lower surface of the actuator substrate and are longer in a substrate surface direction than in a depth direction. A cover plate attached to the actuator substrate covers upper surface openings of the grooves, and a nozzle plate attached to the actuator substrate covers lower surface openings of the grooves. The grooves are formed in such a manner that configurations of the lower surface openings of the ejection grooves and the non-ejection grooves are different.

Abstract translation: 液体喷射头包括致动器基板，其具有从致动器基板的上表面到下表面穿透并且在基板表面方向上比在深度方向上更长的喷射槽和非喷射槽的交替排列。 连接到致动器基板的盖板覆盖槽的上表面开口，并且附接到致动器基板的喷嘴板覆盖槽的下表面开口。 凹槽以这样的方式形成，即排出槽和非喷射槽的下表面开口的构造不同。

公开(公告)号：US09221260B2

公开(公告)日：2015-12-29

申请号：US14338803

申请日：2014-07-23

Applicant: SII PRINTEK INC.

Inventor： Yoshinori Domae ,  Yuki Yamamura

IPC: B41J2/045 ,  B41J2/14 ,  B41J2/16

CPC classification number: B41J2/1623 ,  B41J2/14209 ,  B41J2/1609 ,  B41J2/1632 ,  B41J2/1642 ,  B41J2002/14491 ,  Y10T29/42

Abstract: A liquid jet head includes a piezoelectric body substrate having an upper surface, a lower surface, at least two groove arrays each having ejection grooves penetrating from the upper surface to the lower surface, and a first opening portion penetrating from the upper surface to the lower surface between the at least two groove arrays. Drive electrodes are provided on side surfaces of the ejection grooves and terminal electrodes are electrically connected to the drive electrodes. A flexible circuit board is electrically connected to the terminal electrodes and extends from the lower surface to the upper surface of the piezoelectric body substrate through the first opening portion.

Abstract translation: 液体喷射头包括具有上表面，下表面，至少两个凹槽阵列的压电体基板，每个凹槽阵列具有从上表面到下表面穿透的喷射槽，以及从上表面到下表面的第一开口部分 所述至少两个凹槽阵列之间的表面。 驱动电极设置在喷出槽的侧面上，端子电极与驱动电极电连接。 柔性电路板电连接到端子电极，并且通过第一开口部分从压电体基板的下表面延伸到上表面。

公开(公告)号：US09481169B2

公开(公告)日：2016-11-01

申请号：US14644270

申请日：2015-03-11

Applicant: SII PRINTEK INC.

Inventor： Yoshinori Domae

IPC: B41J29/38 ,  B41J2/045 ,  B41J2/14

CPC classification number: B41J2/04588 ,  B41J2/04581 ,  B41J2/14209 ,  B41J2202/08 ,  B41J2202/12

Abstract: A liquid jet head includes a head portion having a supply flow path configured to allow liquid supplied from the outside to flow therethrough, a pressure chamber that communicates with the supply flow path, a driver element that drives the pressure chamber, and a nozzle that communicates with the pressure chamber for ejecting liquid droplets. A circuit portion supplies a drive waveform to the driver element. A cooling portion has a cooling flow path configured to allow the liquid to flow therethrough, and the cooling portion is coupled and fixed to the circuit portion to absorb heat energy dissipated by the circuit portion. The supply flow path and the cooling flow path communicate with each other so that the same liquid flows through both paths thereby eliminating the need for a dedicated cooling liquid system and achieving size and cost reduction.

Abstract translation: 液体喷射头包括头部，其具有供给流路，该供给流路构造成允许从外部供给的液体流过其中，与供给流路连通的压力室，驱动压力室的驱动元件， 用于喷射液滴的压力室。 电路部分向驱动器元件提供驱动波形。 冷却部具有构造成允许液体流过其中的冷却流路，并且冷却部分被联接并固定到电路部分以吸收由电路部分消散的热能。 供给流路和冷却流路相互连通，使得相同的液体流过两条路径，从而不需要专用的冷却液体系统并实现尺寸和成本的降低。

公开(公告)号：US09227402B2

公开(公告)日：2016-01-05

申请号：US14620951

申请日：2015-02-12

Applicant: SII PRINTEK INC.

Inventor： Yoshinori Domae

IPC: B41J2/045 ,  B41J2/14

CPC classification number: B41J2/14201 ,  B41J2/14209 ,  B41J2002/14491

Abstract: A liquid jet head has spaced-apart side walls that form alternating ejection channels and non-ejection channels. The side walls comprise two piezoelectric materials polarized in opposite directions and laminated together with a polarization boundary interposed between them. Upper and lower members are fixed to respective upper and lower ends of the side walls and overlie upper and lower ends of the channels. Electrodes on opposed wall surfaces of the side walls extend from the upper ends of the side walls to either the vicinity of the polarization boundary or to below the polarization boundary and above the lower ends of the side walls. The polarization boundary is positioned above one-half the depth of the channels to improving the driving efficiency of the piezoelectric body.

Abstract translation: 液体喷射头具有间隔开的侧壁，其形成交替的喷射通道和非喷射通道。 侧壁包括在相反方向上极化的两个压电材料，并且夹在它们之间的偏振边界层压在一起。 上部和下部构件固定到侧壁的相应上端和下端，并且覆盖在通道的上端和下端。 侧壁的相对的壁表面上的电极从侧壁的上端延伸到偏振边界的附近或偏振边界的下方并且在侧壁的下端之上。 偏振边界位于通道深度的一半以上，以提高压电体的驱动效率。

公开(公告)号：US08998381B2

公开(公告)日：2015-04-07

申请号：US14103904

申请日：2013-12-12

Applicant: SII Printek Inc.

Inventor： Yoshinori Domae

IPC: B41J2/14 ,  B41J2/16 ,  B41J2/045

CPC classification number: B41J2/14209 ,  B41J2202/12

Abstract: A liquid jet head includes a nozzle guard attached to a nozzle plate. The nozzle guard functions as a liquid storage unit and is configured to store residual liquid that attaches to the nozzle plate. Channel lines include ejection and non-ejection channels and a dummy channel incapable of driving. Liquid is supplied into the dummy channel while being brought to a negative pressure. The nozzle plate includes a dummy nozzle hole that communicates with the dummy channel, and the dummy nozzle hole is provided at a position to aspirate stored residual liquid using the nozzle guard.

Abstract translation: 液体喷射头包括附接到喷嘴板的喷嘴防护罩。 喷嘴保护罩用作液体存储单元，并且被配置为存储附着到喷嘴板的残留液体。 通道线包括喷射和非喷射通道以及不能驱动的虚拟通道。 在进入负压的同时将液体供给到虚拟通道。 喷嘴板包括与虚拟通道连通的虚拟喷嘴孔，并且虚拟喷嘴孔设置在使用喷嘴护罩吸出存储的残留液体的位置。

公开(公告)号：US10272681B2

公开(公告)日：2019-04-30

申请号：US15273308

申请日：2016-09-22

Applicant: SII Printek Inc.

Inventor： Daichi Nishikawa ,  Yoshinori Domae

IPC: B41J2/14

Abstract: A liquid jet head includes an actuator plate on which are formed ejection channels which extend in a channel extending direction and are filled with ink, and dummy channels which extend in the channel extending direction and are not filled with ink. A nozzle plate is laminated on the actuator plate and includes nozzle holes each communicating with a corresponding ejection channel at a central part in the channel extending direction of the ejection channel. The actuator plate includes a first channel row and a second channel row each of which includes the ejection channels and the dummy channels alternately arranged side by side in the X direction, the first and second channel rows being spaced apart in the channel extending direction. The ejection channels and the dummy channels are each symmetric with respect to a plane that passes through the center in the channel extending direction and perpendicular to the channel extending direction.

公开(公告)号：US09156260B2

公开(公告)日：2015-10-13

申请号：US14338826

申请日：2014-07-23

Applicant: SII PRINTEK INC.

Inventor： Yoshinori Domae ,  Yuki Yamamura

IPC: B41J2/045 ,  B41J2/14

CPC classification number: B41J2/14209 ,  B41J2/14201 ,  B41J2002/14411 ,  B41J2202/11 ,  B41J2202/18

Abstract: A liquid jet head has a piezoelectric body substrate which includes a groove row in which ejection grooves penetrating the piezoelectric body substrate from an upper surface through a lower surface and non-ejection grooves open on the upper surface are alternately arranged in a reference direction, common drive electrodes formed on both side surfaces of each of the ejection grooves, and individual drive electrodes formed on both side surfaces of each of the non-ejection grooves. A cover plate is bonded to the upper surface of the piezoelectric body substrate and includes a liquid chamber communicating with the ejection grooves, first through electrodes which penetrate the cover plate in a thickness direction and are electrically connected to the individual drive electrodes, and individual terminals placed on a front surface of the cover plate opposite to the piezoelectric body substrate and electrically connected to the first through electrodes.

Abstract translation: 液体喷射头具有压电体基板，该压电体基板包括槽列，其中从上表面穿过压电体基板的排出槽穿过下表面，并且在上表面上敞开的非喷射槽在参考方向上交替布置，共同 形成在每个排出槽的两个侧表面上的驱动电极和形成在每个非喷射槽的两个侧表面上的各个驱动电极。 盖板结合到压电体基板的上表面，并且包括与喷射槽连通的液体室，在厚度方向上穿透盖板的第一贯穿电极，并且电连接到各个驱动电极，并且各个端子 放置在与压电体基板相对的盖板的前表面上并电连接到第一穿通电极。