公开(公告)号：US10807364B2

公开(公告)日：2020-10-20

申请号：US16186957

申请日：2018-11-12

Applicant: SII Printek Inc.

Inventor： Daichi Nishikawa ,  Misaki Kobayashi ,  Tomoki Kameyama ,  Hitoshi Nakayama

IPC: B41J2/14

Abstract: There are provided a head chip, a liquid jet head, and a liquid jet recording device capable of enhancing the reliability. The head chip according to an embodiment of the disclosure is a head chip adapted to jet liquid including an actuator plate having a plurality of ejection grooves arranged side by side along a first direction, and extending in a second direction crossing the first direction, a plurality of common electrodes formed on respective inner surfaces of the plurality of ejection grooves, and a commonalization interconnection adapted to electrically connect the plurality of common electrodes to each other, and a nozzle plate having a plurality of nozzle holes individually communicated with the plurality of ejection grooves.

公开(公告)号：US10717280B2

公开(公告)日：2020-07-21

申请号：US16186983

申请日：2018-11-12

Applicant: SII Printek Inc.

Inventor： Daichi Nishikawa ,  Misaki Kobayashi ,  Tomoki Kameyama

IPC: B41J2/14

Abstract: There are provided a head chip, a liquid jet head, and a liquid jet recording device capable of enhancing the reliability. The head chip according to an embodiment of the disclosure is a head chip adapted to jet liquid including an actuator plate having a plurality of ejection grooves and a plurality of non-ejection grooves alternately arranged in parallel to each other along a first direction and each extending in a second direction crossing the first direction, and a nozzle plate having a plurality of nozzle holes individually communicated with the plurality of ejection grooves, and to be bonded to the actuator plate. The non-ejection grooves each partially open in a bonding surface of the actuator plate with the nozzle plate.

公开(公告)号：US10675869B2

公开(公告)日：2020-06-09

申请号：US16185914

申请日：2018-11-09

Applicant: SII Printek Inc.

Inventor： Tomoki Kameyama ,  Yuki Yamamura ,  Daichi Nishikawa ,  Misaki Kobayashi

IPC: B41J2/14 ,  B41J2/165

Abstract: A head chip, a liquid jet head, and a liquid jet recording device capable of achieving the miniaturization while enhancing the reliability are provided. The head chip according to an embodiment of the disclosure includes an actuator plate having a plurality of ejection grooves arranged side by side in a first direction, a plurality of non-ejection grooves arranged side by side along the first direction, and individual electrodes respectively formed in the plurality of non-ejection grooves, a nozzle plate having a plurality of nozzle holes individually communicated with the plurality of ejection grooves, and a cover plate adapted to cover the actuator plate. The cover plate has interconnection connecting sections respectively disposed in end part areas along a second direction perpendicular to the first direction, and adapted to electrically connect a plurality of individual interconnections electrically connected to the individual electrodes to an interconnection board outside the head chip. The plurality of individual interconnections in the interconnection connecting section has a bend part extending in an oblique direction crossing the second direction so as to circumvent a predetermined obstacle. A connection area between the plurality of individual interconnections and the interconnection board in the interconnection connecting section is an area including the bend part.

公开(公告)号：US10654271B2

公开(公告)日：2020-05-19

申请号：US16185857

申请日：2018-11-09

Applicant: SII Printek Inc.

Inventor： Yuki Yamamura ,  Daichi Nishikawa ,  Tomoki Kameyama ,  Misaki Kobayashi

IPC: 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 each filled with liquid, a nozzle plate having a plurality of nozzle holes individually communicated with the plurality of ejection grooves, and a cover plate having a through hole through which the liquid flows into and/or from the ejection groove, and a wall part adapted to cover the ejection groove. A flow channel of the liquid in a part adapted to communicate the through hole and the ejection groove with each other includes a principal flow channel section, and an expanded flow channel section provided to the wall part, and adapted to increase a cross-sectional area of the flow channel.