公开(公告)号：US20220161557A1

公开(公告)日：2022-05-26

申请号：US17523605

申请日：2021-11-10

Applicant: SII PRINTEK INC.

Inventor： Yuzuru KUBOTA ,  Satoshi HORIGUCHI ,  Tomoaki HOSHI

IPC: B41J2/14 ,  B41J2/16

Abstract: There are provided a head chip, a liquid jet head, a liquid jet recording device, and a method of manufacturing the head chip each capable of preventing the short circuit of electrodes by ink to maintain an excellent ejection performance over a long period of time. The head chip according to an aspect of the present disclosure includes an actuator plate, a cover plate, and an intermediate plate. In the actuator plate, open apertures which communicate an inside and an outside of a non-ejection channel with each other are formed in both end portions of the non-ejection channel in a Y direction. In the actuator plate, open apertures which communicate an inside and an outside of a non-ejection channel with each other are formed in both end portions of the non-ejection channel in the Y direction.

公开(公告)号：US20150109373A1

公开(公告)日：2015-04-23

申请号：US14509695

申请日：2014-10-08

Applicant: SII PRINTEK INC.

Inventor： Satoshi HORIGUCHI

IPC: B41J2/14

CPC classification number: B41J2/14209

Abstract: A liquid jet head includes a first piezoelectric body substrate and an opaque substrate. The first piezoelectric body substrate includes n pieces of ejection grooves arrayed with an identical pitch in a reference direction on a surface, and (n+1) pieces of non-ejection grooves arrayed alternately with the ejection grooves while shifted therefrom by a half pitch. The opaque substrate is bonded to the surface of the first piezoelectric body substrate and includes (j+n+k) pieces of through holes passing through the plate in the board thickness direction and arrayed in the reference direction. Each of n pieces of through holes communicates with each of the n pieces of the ejection grooves, while j and k pieces of through holes do not communicate with the ejection grooves.

Abstract translation: 液体喷射头包括第一压电体基板和不透明基板。 第一压电体基板包括在表面上沿基准方向排列相同间距的n个排出槽，以及与排出槽交替排列的（n + 1）个非喷射槽，同时偏移半个间距。 不透明基板粘合到第一压电体基板的表面，并且包括沿板厚度方向穿过板的（j + n + k）个通孔并沿基准方向排列。 n个通孔中的每一个与n个排出槽中的每一个连通，而j和k个通孔不与排出槽连通。

公开(公告)号：US20150258790A1

公开(公告)日：2015-09-17

申请号：US14641823

申请日：2015-03-09

Applicant: SII PRINTEK INC. ,  SEIKO INSTRUMENTS INC.

Inventor： Tokio TATSUMI ,  Satoshi HORIGUCHI

IPC: B41J2/14 ,  B41J2/16

CPC classification number: B41J2/14209 ,  B41J2/14072 ,  B41J2/1609 ,  B41J2/1623 ,  B41J2/1631 ,  B41J2/1632 ,  B41J2/1643 ,  B41J2002/14491 ,  Y10T29/49401

Abstract: A liquid jet head includes a base plate, an actuator plate fixed to the base plate, a drive electrode formed on each of inner surfaces of an ejection channel and a dummy channel in the actuator plate, and an extracting electrode formed on the base plate to be located on a rear side of the actuator plate and electrically connected to the drive electrode, in which an electrode formation region to form the extracting electrode has a surface roughness greater than that of a region other than the electrode formation region, in the base plate.

Abstract translation: 液体喷射头包括基板，固定到基板的致动器板，形成在致动器板中的喷射通道和虚拟通道的每个内表面上的驱动电极，以及形成在基板上的提取电极， 位于致动器板的后侧并电连接到驱动电极，其中形成提取电极的电极形成区域具有比除电极形成区域以外的区域的表面粗糙度更大的表面粗糙度 。

公开(公告)号：US20140139593A1

公开(公告)日：2014-05-22

申请号：US14075024

申请日：2013-11-08

Applicant: SII PRINTEK INC.

Inventor： Satoshi HORIGUCHI ,  Yuzuru KUBOTA ,  Yoshinori DOMAE

IPC: B41J2/16 ,  B41J2/14

CPC classification number: B41J2/1626 ,  B41J2/1609 ,  B41J2/1623 ,  B41J2/1631 ,  B41J2/1632 ,  Y10T29/49401

Abstract: A liquid jet head is provided with an actuator substrate partitioned by elongated walls of a piezoelectric body and having elongated ejection grooves and elongated non-ejection grooves alternately arrayed thereon so as to penetrate the actuator substrate from an upper surface through a lower surface thereof; a cover plate provided on the upper surface and having first slits communicating with the ejection grooves on one side and second slits communicating with the ejection grooves on the other side; and a nozzle plate provided on the lower surface and having nozzles communicating with the ejection grooves. The non-ejection grooves extend, on the other side, up to a second-side peripheral end of the actuator substrate, and the actuator substrate is left to form raised bottom portions on bottoms of the non-ejection grooves near the second-side peripheral end.

Abstract translation: 液体喷射头设置有由压电体的细长壁分隔的致动器基板，并且具有交替排列在其上的细长的喷射槽和细长的非喷射槽，以便通过其下表面从上表面穿透致动器基板; 盖板，设置在上表面上，具有与一侧的排出槽连通的第一狭缝，以及与另一侧的喷出槽连通的第二狭缝; 以及设置在下表面上并具有与排出槽连通的喷嘴的喷嘴板。 不排出槽在另一侧延伸到致动器基板的第二侧外周端，并且致动器基板留在第二侧周边附近的非喷射槽的底部上形成凸起的底部 结束。

公开(公告)号：US20150258782A1

公开(公告)日：2015-09-17

申请号：US14639229

申请日：2015-03-05

Applicant: SII PRINTEK INC. ,  SEIKO INSTRUMENTS INC.

Inventor： Satoshi HORIGUCHI ,  Tokio TATSUMI

IPC: B41J2/14

CPC classification number: B41J2/14 ,  B41J2/14209 ,  B41J2/1609 ,  B41J2/1623 ,  B41J2/1631 ,  B41J2/1632 ,  B41J2/1643 ,  B41J2002/14491

Abstract: A liquid jet head includes base plates, a first actuator plate and a second actuator plate separately arranged on one principal planes of the base plates, and configured to jet a liquid, first extracting electrodes electrically connected to first drive electrodes, on the one principal plane of the first base plate, and second extracting electrodes electrically connected to second drive electrodes, on the one principal plane of the second base plate. The second extracting electrodes are pulled out on the one principal plane through through holes formed in the base plates.

Abstract translation: 一种液体喷射头，包括基板，第一致动器板和第二致动器板，分别布置在基板的一个主平面上，并且构造成喷射液体，在一个主平面上首先提取与第一驱动电极电连接的电极 以及与第二驱动电极电连接的第二提取电极，位于第二基板的一个主平面上。 第二提取电极通过形成在基板中的通孔在一个主平面上拉出。

公开(公告)号：US20140125741A1

公开(公告)日：2014-05-08

申请号：US14065890

申请日：2013-10-29

Applicant: SII PRINTEK INC.

Inventor： Satoshi HORIGUCHI ,  Yuki YAMAMURA ,  Yuzuru KUBOTA ,  Yoshinori DOMAE ,  Masatoshi TODA ,  Masao TACHIBANA

IPC: B41J2/175

CPC classification number: B41J2/14209

Abstract: A liquid jet head is provided with an actuator substrate which is partitioned by elongated walls of piezoelectric body and has elongated grooves arrayed thereon so as to penetrate the substrate from an upper surface through a lower surface thereof, a cover plate which is attached to the substrate so as to cover upper surface openings of the grooves and has a liquid supply chamber which supplies liquid to the grooves, and a nozzle plate which is attached to the substrate so as to cover lower surface openings of the grooves and has nozzles communicating with the respective grooves. Drive electrodes are formed in strip form on side surfaces of the walls along the longitudinal direction thereof so as to be separated from the nozzle plate. The nozzle plate has a lower stiffness than the cover plate.

Abstract translation: 液体喷射头设置有致动器基板，致动器基板由压电体的细长壁分隔，并且具有排列在其上的细长槽，以便通过其下表面从上表面穿透基板;附接到基板的盖板 以覆盖槽的上表面开口，并且具有向槽供给液体的液体供应室，以及附接到基板以便覆盖槽的下表面开口的喷嘴板，并且具有与各自的槽相连的喷嘴 凹槽 驱动电极沿着其纵向在壁的侧表面上以条形形成，以便与喷嘴板分离。 喷嘴板的刚度低于盖板。

公开(公告)号：US20220176695A1

公开(公告)日：2022-06-09

申请号：US17541566

申请日：2021-12-03

Applicant: SII Printek Inc.

Inventor： Satoshi HORIGUCHI

IPC: B41J2/14 ,  B41J2/16

Abstract: The head chip includes an actuator plate having ejection channels and non-ejection channels extending in a Y direction and arranged alternately in an X direction, an intermediate plate overlapped with the actuator plate in a Z direction, and provided with communication holes communicated with the ejection channels and through holes communicated with the non-ejection channels, and a nozzle plate overlapped with the intermediate plate in the Z direction in a state of closing the through holes, and provided with nozzle holes which are communicated with the communication holes, jet liquid contained in the ejection channels, and are formed at positions corresponding to the ejection channels. The non-ejection channels are communicated with an outside of the head chip. The through holes are each disposed at an inner side in the X direction of the inner surfaces extending in the Y direction of the non-ejection channel viewed from the Z direction.

公开(公告)号：US20160075133A1

公开(公告)日：2016-03-17

申请号：US14841983

申请日：2015-09-01

Applicant: SII PRINTEK INC.

Inventor： Toshimitsu MOROOKA ,  Satoshi HORIGUCHI

IPC: B41J2/14 ,  B41J2/16

CPC classification number: B41J2/1642 ,  B41J2/14209 ,  B41J2/1609 ,  B41J2/1623 ,  B41J2/1631 ,  B41J2/1632 ,  B41J2002/14491

Abstract: A liquid jet head includes ejection channels and dummy channels alternately arrayed across partitions to configure a channel row, and drive electrodes that are side surfaces of the partitions and are positioned from upper ends of the partitions in a depth direction, and an average depth of two drive electrodes positioned on facing side surfaces of the ejection channel is different from an average depth of two drive electrodes positioned on facing side surfaces of the dummy channel adjacent to the ejection channel.

Abstract translation: 液体喷射头包括排列通道和虚拟通道，交替排列在隔板之间以构成通道列，驱动电极是分隔件的侧表面，并且在深度方向上位于隔板的上端，平均深度为2 位于喷射通道的相对侧表面上的驱动电极与位于与排出通道相邻的虚拟通道的相对侧面上的两个驱动电极的平均深度不同。

公开(公告)号：US20140194039A1

公开(公告)日：2014-07-10

申请号：US14149572

申请日：2014-01-07

Applicant: SII PRINTEK INC.

Inventor： Satoshi HORIGUCHI

IPC: B41J2/16

CPC classification number: B41J2/1632 ,  B41J2/1609 ,  B41J2/1623 ,  B41J2/1631

Abstract: A method of manufacturing a head chip includes a groove forming step for forming grooves which are the bases of ejection grooves on a first surface of the actuator substrate, a substrate grinding step for grinding a second surface of the actuator substrate so that each of the grooves has a predetermined depth, a recessed portion forming step for forming an inspection recessed portion which changes its state in the second surface of the actuator substrate according to the grinding amount of the actuator substrate in the substrate grinding step, and a grinding amount determination step for determining the grinding amount of the actuator substrate on the basis of a state of the inspection recessed portion after the substrate grinding step.

Abstract translation: 制造头部芯片的方法包括：槽形成步骤，用于在致动器基板的第一表面上形成作为排出槽的基部的槽;衬底研磨步骤，用于研磨致动器基板的第二表面，使得每个槽 具有预定深度的凹陷部分形成步骤，用于形成检测凹部，该检查凹部在基板研磨步骤中根据致动器基板的研磨量改变其在致动器基板的第二表面中的状态;以及磨削量确定步骤， 基于在基板研磨步骤之后的检查凹部的状态来确定致动器基板的研磨量。

公开(公告)号：US20140168320A1

公开(公告)日：2014-06-19

申请号：US14099434

申请日：2013-12-06

Applicant: SII PRINTEK INC.

Inventor： Satoshi HORIGUCHI ,  Yuzuru KUBOTA

IPC: B41J2/14 ,  B41J2/16

CPC classification number: B41J2/164 ,  B41J2/14209 ,  B41J2/1609 ,  B41J2/1626 ,  B41J2/1631 ,  B41J2/1632 ,  B41J2202/12 ,  Y10T29/42

Abstract: A liquid jet head 1 including: an actuator substrate 2 having a plurality of elongated grooves 6 arrayed from an upper surface to a lower surface thereof. The grooves are formed from a vicinity of a peripheral end on one side of the actuator substrate to a peripheral end the other side thereof, ends of the grooves in a longitudinal direction thereof have respective inclined surfaces 22 rising from the lower surface to the upper surface of the actuator substrate, and a crossing angle at crossing portions at which the inclined surfaces and the lower surface cross each other is in a range of 3 degrees to 80 degrees.

Abstract translation: 一种液体喷射头1，包括：致动器基板2，具有从上表面到下表面排列的多个细长槽6。 所述凹槽由致动器基板的一侧的周边附近形成为其另一侧的周向端部，所述槽的长度方向的端部具有从所述下表面向所述上表面上升的各倾斜面22 并且倾斜面和下表面交叉的交叉部分处的交叉角在3度至80度的范围内。