公开(公告)号：US20210162757A1

公开(公告)日：2021-06-03

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：US20130169717A1

公开(公告)日：2013-07-04

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

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

Abstract: To prevent deterioration of an ejection characteristic, which is caused by adhesion of an air bubble mixed in liquid to channels (6) and slits (13) communicated therewith, provided is a liquid jet head, including: a supply port (2) through which liquid is supplied; a discharge port (3) through which the liquid is discharged; a liquid supply chamber (4) communicated with the supply port (2); a liquid discharge chamber (5) communicated with the discharge port (3); a channel row (7) forced of a plurality of channels (6), which are provided in parallel between the liquid supply chamber (4) and the liquid discharge chamber (5) and communicated with the liquid supply chamber (4) and the liquid discharge chamber (5); and a communication path (9) for bypassing the liquid from the liquid supply chamber (4) to the liquid discharge chamber (5). An air bubble is removed outside via the communication path (9).

Abstract translation: 为了防止由混合在液体中的气泡与通道（6）和与其连通的狭缝（13）的气泡的粘附引起的喷射特性的劣化，是一种液体喷射头，包括：供给口（2） 供应液体; 排出口（3），液体通过该排出口排出; 与所述供应口（2）连通的液体供应室（4）; 与排出口（3）连通的液体排出室（5）; 设置在液体供给室（4）和液体排出室（5）之间并与液体供给室（4）连通的多个通道（6）的通道排（7） 放电室（5）; 以及用于将液体从液体供给室（4）旁通到液体排出室（5）的连通路径（9）。 通过通信路径（9）将气泡除去。

公开(公告)号：US20190134976A1

公开(公告)日：2019-05-09

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: B41J2/045 ,  B41J2/14

CPC classification number: B41J2/04541 ,  B41J2/04586 ,  B41J2/14209 ,  B41J2/1433 ,  B41J2002/14362 ,  B41J2002/14491 ,  B41J2202/12

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：US20190126650A1

公开(公告)日：2019-05-02

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: 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：US20190143685A1

公开(公告)日：2019-05-16

申请号：US16189246

申请日：2018-11-13

Applicant: SII Printek Inc.

Inventor： Yuki YAMAMURA ,  Masaru MIDORIKAWA ,  Shuji SATO ,  Shunsuke YAMAZAKI ,  Naohiro TOMITA

IPC: B41J2/14 ,  B41J2/16

Abstract: There is provided a liquid jet head capable of obtaining an excellent jet characteristic. The liquid jet head is provided with an actuator plate having a plurality of channels extending in a first direction, the plurality of channels filled with liquid, a nozzle plate disposed so as to be opposed to the actuator plate, and having a plurality of nozzle holes at positions corresponding to the plurality of channels, the liquid filled in the plurality of channels being jetted from the plurality of nozzle holes in a second direction crossing the first direction, and an intermediate plate disposed between the actuator plate and the nozzle plate, and having a plurality of slits extending in the first direction at positions corresponding respectively to the plurality of channels and the plurality of nozzle holes, a width of each of the plurality of slits in a third direction crossing each of the first direction and the second direction being larger than a width of each of the plurality of channels in the third direction.

公开(公告)号：US20190143681A1

公开(公告)日：2019-05-16

申请号：US16186941

申请日：2018-11-12

Applicant: SII Printek Inc.

Inventor： Naohiro TOMITA ,  Yuki YAMAMURA ,  Masaru MIDORIKAWA ,  Shuji SATO ,  Shunsuke YAMAZAKI

IPC: B41J2/14

Abstract: There is provided a liquid jet head capable of enhancing the operation reliability. The liquid jet head is provided with an actuator plate having conductivity and a plurality of channels filled with liquid, a nozzle plate having conductivity which is electrically insulated from the actuator plate, and has a plurality of nozzle holes from which the liquid filled in the plurality of channels is jetted, a base having conductivity adapted to support each of the actuator plate and the nozzle plate, and a protective member having conductivity, adapted to cover at least a part of a surface of the nozzle plate in an area where the plurality of nozzle holes is not disposed on a side from which the liquid is jetted, and electrically connected to each of the nozzle plate and the base.

公开(公告)号：US20190134981A1

公开(公告)日：2019-05-09

申请号：US16181912

申请日：2018-11-06

Applicant: SII Printek Inc.

Inventor： Shunsuke YAMAZAKI ,  Naohiro TOMITA ,  Masaru MIDORIKAWA ,  Yuki YAMAMURA ,  Shuji SATO

IPC: B41J2/14 ,  B41J2/16

Abstract: A liquid jet head capable of a stable jet operation is provided. The liquid jet head includes a liquid jet head chip adapted to jet liquid, a flow channel member having a flow channel adapted to guide the liquid to the liquid jet head chip, an adhesive layer adapted to bond the flow channel member and the liquid jet head chip to each other, and an elastic body softer than the adhesive layer and disposed between the flow channel member and the liquid jet head chip.

公开(公告)号：US20190134980A1

公开(公告)日：2019-05-09

申请号：US16181869

申请日：2018-11-06

Applicant: SII Printek Inc.

Inventor： Shunsuke YAMAZAKI ,  Naohiro TOMITA ,  Masaru MIDORIKAWA ,  Yuki YAMAMURA ,  Shuji SATO

IPC: B41J2/14

Abstract: There is provided a liquid jet head which makes it possible to stably manufacture the liquid jet head having an excellent jet characteristic. The liquid jet head is provided with a head chip including an actuator plate having a plurality of channels which is filled with liquid, and a nozzle plate attached to the actuator plate and having a plurality of nozzle holes from which the liquid filled in the plurality of channels is jetted, and a flow channel member fixed along the head chip, having a flow channel of the liquid to be supplied to the plurality of channels, and being higher in rigidity than the head chip.

公开(公告)号：US20200147967A1

公开(公告)日：2020-05-14

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：US20190143696A1

公开(公告)日：2019-05-16

申请号：US16185891

申请日：2018-11-09

Applicant: SII Printek Inc.

Inventor： Yuki YAMAMURA ,  Daichi NISHIKAWA ,  Tomoki KAMEYAMA ,  Misaki KOBAYASHI

IPC: B41J2/165 ,  B41J2/14

Abstract: There are provided a head chip, a liquid jet head, and a liquid jet recording device capable of improving the ejection stability. The head chip according to an embodiment of the disclosure includes an actuator plate having a plurality of ejection grooves filled with liquid, and a plurality of non-ejection grooves not filled with the liquid, a nozzle plate having a plurality of nozzle holes individually communicated with the plurality of ejection grooves while not being communicated with the plurality of non-ejection grooves, a cover plate having a plurality of through holes adapted to respectively fill the plurality of ejection grooves with the liquid, and adapted to close the plurality of non-ejection grooves, and a communication mechanism adapted to communicate an outside of the head chip and the plurality of non-ejection grooves with each other via an opening part exposed to the outside of the head chip.