公开(公告)号：US11254132B2

公开(公告)日：2022-02-22

申请号：US17105083

申请日：2020-11-25

Applicant: SII PRINTEK INC.

Inventor： Masakazu Hirata ,  Yuzuru Kubota ,  Yuki Yamamura ,  Tomoki Ai

IPC: B41J2/14

Abstract: There is provided a head chip and so on capable of achieving the reduction in power consumption and the improvement in print image quality while suppressing the manufacturing cost of the head chip. The head chip according to an embodiment of the present disclosure includes an actuator plate having a plurality of ejection grooves and a plurality of electrodes, a nozzle plate having a plurality of nozzle holes, and a cover plate having a wall part, a first through hole, and a second through hole. The plurality of nozzle holes includes a plurality of first nozzle holes arranged so as to be shifted toward the first through hole, and a plurality of second nozzle holes arranged so as to be shifted toward the second through hole. In a first ejection groove communicated with the first nozzle hole, a first cross-sectional area of a part communicated with the first through hole is smaller than a second cross-sectional area of a part communicated with the second through hole. Positions of both ends of the electrode along the extending direction of the ejection grooves are each aligned in the plurality of electrodes along a predetermined direction.

公开(公告)号：US10343411B2

公开(公告)日：2019-07-09

申请号：US15977691

申请日：2018-05-11

Applicant: SII Printek Inc.

Inventor： Masaru Midorikawa ,  Naohiro Tomita ,  Shunsuke Yamazaki ,  Shuji Sato ,  Yuki Yamamura

IPC: B41J2/14 ,  F16B5/02 ,  B41J2/175 ,  B41J25/00 ,  B41J25/34 ,  F16B13/06 ,  F16B13/08 ,  F16B29/00

Abstract: A liquid ejecting head is mounted on a carriage in which a first positioning hole defined by a first inner surface is provided. The liquid ejecting head includes a first positioning member and a first intermediate member. The first intermediate member includes a first expansion portion being capable of being inserted into a first positioning hole and abutting on the first inner surface by expanding in a radial direction intersecting with an insertion direction of the first expansion portion. The first expansion portion includes a first insertion hole into which the first positioning member is inserted and expands in the radial direction by the first positioning member being inserted into the first insertion hole.

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：US10688782B2

公开(公告)日：2020-06-23

申请号：US16181653

申请日：2018-11-06

Applicant: SII Printek Inc.

Inventor： Naohiro Tomita ,  Yuki Yamamura ,  Masaru Midorikawa ,  Shuji Sato ,  Shunsuke Yamazaki

IPC: B41J2/04 ,  B41J2/045 ,  B41J2/14

Abstract: There are provided a liquid jet head and a liquid jet recording device capable of enhancing the reliability. A liquid jet head according to an embodiment of the disclosure includes a liquid jet section from which liquid is jetted, an electronic control section electrically connected to the liquid jet section, a main protective member adapted to cover a periphery of the electronic control section, a connection section attached to the electronic control section and adapted to electrically connect an outside of the liquid jet head and the electronic control section to each other, and a connection section protective member configured so as to make a state transition between a protection state of covering the connection section and an exposure state of exposing the connection section.

公开(公告)号：US10583676B2

公开(公告)日：2020-03-10

申请号：US16176648

申请日：2018-10-31

Applicant: SII Printek Inc.

Inventor： Yuki Yamamura ,  Masaru Midorikawa ,  Naohiro Tomita ,  Shunsuke Yamazaki ,  Shuji Sato

IPC: B41J2/14 ,  B41J29/377 ,  B41J2/175

Abstract: A liquid jet head and a liquid jet recording device capable of accurately detecting the temperature of the ink are provided. A liquid jet head according to an embodiment of the disclosure includes a flow channel member provided with a flow channel of a liquid, and having a high heat conduction part disposed so as to have contact with the liquid flowing inside the flow channel, and a low heat conduction part having lower thermal conductivity than thermal conductivity of the high heat conduction part, a temperature detection element disposed outside the flow channel, and attached to the high heat conduction part, and a liquid jet section from which the liquid is jetted.

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。

公开(公告)号：US09085164B2

公开(公告)日：2015-07-21

申请号：US13713055

申请日：2012-12-13

Applicant: SII Printek Inc.

Inventor： Yoshinori Domae ,  Osamu Koseki ,  Yuki Yamamura ,  Yuzuru Kubota ,  Satoshi Horiguchi

IPC: B41J2/175 ,  B41J2/14

CPC classification number: B41J2/175 ,  B41J2/14209 ,  B41J2002/14419 ,  B41J2202/11 ,  B41J2202/12

Abstract: A liquid jet head includes a flow path member having a supply port through which liquid is supplied and a discharge port through which the liquid is discharged, and a cover plate having a liquid supply chamber that communicates with the supply port and a liquid discharge chamber that communicates with the discharge port. An actuator substrate has a plurality of parallel channels that extend between the liquid supply chamber and the liquid discharge chamber and the channels communicate with respective nozzles formed in a nozzle plate. The flow path member, cover plate, actuator substrate and nozzle plate constitute a laminated structure. A communication path is provided in one or both of the cover plate and flow path member for bypassing the liquid from the liquid supply chamber to the liquid discharge chamber so that air bubbles trapped in the liquid can be effectively discharged to the outside.

Abstract translation: 液体喷射头包括流路构件，该流路构件具有供给液体的供给口和排出液体的排出口，以及具有与供给口连通的液体供给室的盖板和液体排出室， 与排放口连通。 致动器基板具有在液体供应室和液体排出室之间延伸的多个平行通道，并且通道与形成在喷嘴板中的各个喷嘴连通。 流路构件，盖板，致动器基板和喷嘴板构成层叠结构。 在盖板和流路构件中的一个或两个中设置有连通路径，用于将液体从液体供给室旁路到液体排出室，从而可以将捕获在液体中的气泡有效地排出到外部。

公开(公告)号：US11491787B2

公开(公告)日：2022-11-08

申请号：US17102723

申请日：2020-11-24

Applicant: SII PRINTEK INC.

Inventor： Tomoki Ai ,  Yuki Yamamura ,  Masakazu Hirata ,  Kenji Suzuki

IPC: B41J2/14 ,  B41J2/155

Abstract: There are provided a head chip and so on capable of improving the print image quality. The head chip according to an embodiment of the present disclosure is provided with an actuator plate having a plurality of ejection grooves and a nozzle plate having a plurality of nozzle holes individually communicated with the plurality of ejection grooves. The plurality of ejection grooves is arranged side by side so as to at least partially overlap each other along a predetermined direction. Further, the nozzle holes adjacent to each other along the predetermined direction out of the plurality of nozzle holes are arranged so as to be shifted from each other along an extending direction of the ejection grooves in the nozzle plate.

公开(公告)号：US11072176B2

公开(公告)日：2021-07-27

申请号：US16675608

申请日：2019-11-06

Applicant: SII Printek Inc.

Inventor： Hitoshi Nakayama ,  Yuji Nakamura ,  Yuki Yamamura ,  Mizuki Kudo

IPC: B41J2/16 ,  B41J2/14 ,  B41J2/165

Abstract: A liquid jet head chip capable of exerting a stable ejection performance is provided. The liquid jet head chip is provided with an actuator plate and an electrode. The actuator plate has an obverse surface, a reverse surface, and two or more ejection channels which penetrate the actuator plate in a thickness direction from the obverse surface toward the reverse surface, which are disposed so as to be adjacent to each other at intervals in a first direction perpendicular to the thickness direction, and which are disposed so as to extend in a second direction perpendicular to both of the thickness direction and the first direction. The electrode is disposed on an inner surface of the ejection channel, and includes a first electrode part covering the inner surface of the ejection channel continuously from the obverse surface toward the reverse surface, and a second electrode part covering the inner surface of the ejection channel continuously from the reverse surface toward the obverse surface, and overlapping at least a part of the first electrode part.

公开(公告)号：US20210187950A1

公开(公告)日：2021-06-24

申请号：US17123393

申请日：2020-12-16

Applicant: SII PRINTEK INC.

Inventor： Suguru Munakata ,  Daichi Nishikawa ,  Yuzuru Kubota ,  Yuki Yamamura ,  Yuji Nakamura

IPC: B41J2/16

Abstract: Isolation between electrodes is ensured to enhance resistance to a liquid. A conductive film is provided to a surface of a piezoelectric substrate, and laser processing is performed in a groove extending direction on the conductive film between a first groove and a second groove provided to the piezoelectric substrate to thereby form a laser processing area where the conductive film is removed to the surface of the piezoelectric substrate between the first groove and the second groove. In forming the laser processing area, an irradiation operation with a laser is performed along a plurality of laser processing lines extending in the groove extending direction. Further, the irradiation operation with the laser is performed a plurality of times for each of the laser processing lines, and the irradiation operations with the laser performed along the same laser processing line of the plurality of laser processing lines are performed at a time interval from when ending a previous irradiation operation with the laser to when starting a subsequent irradiation operation with the laser.