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：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：US20210162754A1

公开(公告)日：2021-06-03

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：US11020968B2

公开(公告)日：2021-06-01

申请号：US16670422

申请日：2019-10-31

Applicant: SII Printek Inc.

Inventor： Tomoki Ai ,  Yuki Yamamura ,  Tooru Mine

IPC: B41J2/14 ,  B41J2/16

Abstract: There are provided a head chip and a method of manufacturing the same, a liquid jet head, and a liquid jet recording device each capable of suppressing a stray capacitance to improve the image quality. The head chip according to an embodiment of the present disclosure is a head chip having an actuator plate adapted to apply pressure to liquid to jet the liquid. The actuator plate includes an obverse surface and a reverse surface, a channel extending in a predetermined direction and having a first opening provided to the obverse surface and a second opening which is provided to the reverse surface and is shorter in length in the predetermined direction than the first opening, and an electrode having an obverse surface side part disposed on a sidewall of the channel on the first opening side, and a reverse surface side part which is disposed on the sidewall closer to the second opening than the obverse surface side part and is one of equal to and larger than the obverse surface side part in size in the predetermined direction.

公开(公告)号：US20200147964A1

公开(公告)日：2020-05-14

申请号：US16670422

申请日：2019-10-31

Applicant: SII Printek Inc.

Inventor： Tomoki Ai ,  Yuki Yamamura ,  Tooru Mine

IPC: B41J2/14 ,  B41J2/16

Abstract: There are provided a head chip and a method of manufacturing the same, a liquid jet head, and a liquid jet recording device each capable of suppressing a stray capacitance to improve the image quality. The head chip according to an embodiment of the present disclosure is a head chip having an actuator plate adapted to apply pressure to liquid to jet the liquid. The actuator plate includes an obverse surface and a reverse surface, a channel extending in a predetermined direction and having a first opening provided to the obverse surface and a second opening which is provided to the reverse surface and is shorter in length in the predetermined direction than the first opening, and an electrode having an obverse surface side part disposed on a sidewall of the channel on the first opening side, and a reverse surface side part which is disposed on the sidewall closer to the second opening than the obverse surface side part and is one of equal to and larger than the obverse surface side part in size in the predetermined direction.