公开(公告)号：US12097702B2

公开(公告)日：2024-09-24

申请号：US17827184

申请日：2022-05-27

Applicant: TOSHIBA TEC KABUSHIKI KAISHA

Inventor： Noriyuki Kikuchi ,  Hiroki Ikegami

IPC: B41J2/14 ,  B41J2/045

CPC classification number: B41J2/14209 ,  B41J2/04516 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2/04596 ,  B41J2/04598 ,  B41J2/14201 ,  B41J2/1433

Abstract: According to one embodiment, an inkjet head includes a pressure chamber for ink, a nozzle plate including a nozzle connected to the pressure chamber, an actuator to change a volume of the pressure chamber, and a drive circuit that drives the actuator. The drive circuit drives the actuator according to a drive waveform including an expansion waveform, a first weak contraction waveform, a contraction waveform, and a second weak contraction waveform.

公开(公告)号：US20240017547A1

公开(公告)日：2024-01-18

申请号：US18477560

申请日：2023-09-29

Applicant: KYOCERA CORPORATION ,  KYOCERA DOCUMENT SOLUTIONS INC.

Inventor： Masaru IWABUCHI ,  Hiroyuki TOMIOKA

IPC: B41J2/14

CPC classification number: B41J2/14209 ,  B41J2/14072 ,  B41J2002/14306 ,  B41J2202/08

Abstract: A liquid discharge head includes a flow channel member, a pressurization part, a plurality of discharge holes, a flexible substrate, a cover member, and a heater. The flow channel member includes a first surface and a second surface that is positioned on an opposite side of the first surface. The pressurization part is positioned on the first surface. The plurality of discharge holes are positioned on the second surface. For the flexible substrate, a one-end part thereof that is positioned on the pressurization part is electrically connected to the pressurization part. The cover member covers the one-end part of the flexible substrate. The heater is positioned on the cover member.

公开(公告)号：US11760092B2

公开(公告)日：2023-09-19

申请号：US17232675

申请日：2021-04-16

Applicant: BROTHER KOGYO KABUSHIKI KAISHA

Inventor： Atsuo Sakaida

IPC: B41J2/05 ,  B41J2/045 ,  B41J2/175 ,  B41J2/14 ,  B41J2/155

CPC classification number: B41J2/14209 ,  B41J2/155 ,  B41J2002/14217 ,  B41J2002/14225 ,  B41J2002/14306 ,  B41J2002/14459 ,  B41J2002/14491 ,  B41J2202/20

Abstract: An inkjet head including a flow path unit and a plurality of actuator units, each of the plurality of actuator units has a parallelogram shape defined by two sets of opposing sides, which is substantially parallel to a first direction and a second direction intersecting with each other along a plane, the side of the actuator unit parallel to the second direction is substantially parallel to that of an adjacent actuator unit and is shifted from that of the adjacent actuator unit in the second direction, the plurality of actuator units are inclined with respect to two contour lines of a flow path unit, the two contour lines being parallel with each other and extending in a longitudinal direction of the flow path unit, and centers of gravity of contours of the plurality of actuator units are arranged on substantially one straight line which is parallel to the contour lines.

公开(公告)号：US11752767B2

公开(公告)日：2023-09-12

申请号：US17572023

申请日：2022-01-10

Applicant: Brother Kogyo Kabushiki Kaisha

Inventor： Keita Sugiura

IPC: B41J2/14 ,  B41J2/175

CPC classification number: B41J2/14233 ,  B41J2/14209 ,  B41J2/175 ,  B41J2002/14169 ,  B41J2002/14225 ,  B41J2002/14258 ,  B41J2002/14419 ,  B41J2002/14459 ,  B41J2002/14483 ,  B41J2002/14491 ,  B41J2202/11 ,  B41J2202/12

Abstract: A liquid jetting apparatus includes: individual channels; and a manifold commonly provided for the individual channels. Each of the individual channels has: a nozzle; a pressure chamber arranged away from the nozzle in a predetermined direction to extend along a plane orthogonal to the predetermined direction and connected to the manifold, a connecting channel connected to the pressure chamber to form at least a part of a channel communicating the pressure chamber and the nozzle, and a circulation channel connected to the connecting channel to form a part of a channel communicating the connecting channel and the pressure chamber. The connecting channel has a throttle, and the throttle has a smaller diameter along the plane orthogonal to the predetermined direction than a diameter, of a part of the connecting channel except the throttle, along the plane orthogonal to the predetermined direction.

公开(公告)号：US20190143683A1

公开(公告)日：2019-05-16

申请号：US16186983

申请日：2018-11-12

Applicant: SII Printek Inc.

Inventor： Daichi NISHIKAWA ,  Misaki KOBAYASHI ,  Tomoki KAMEYAMA

IPC: B41J2/14

CPC classification number: B41J2/1433 ,  B41J2/14072 ,  B41J2/14209 ,  B41J2002/14491

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：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：US20180319162A1

公开(公告)日：2018-11-08

申请号：US15771813

申请日：2016-10-27

Applicant: KYOCERA Corporation

Inventor： Naoki KOBAYASHI ,  Hiroyuki KAWAMURA ,  Wataru IKEUCHI

IPC: B41J2/14

CPC classification number: B41J2/14056 ,  B41J2/14048 ,  B41J2/14072 ,  B41J2/14209 ,  B41J2/14274 ,  B41J2002/14419 ,  B41J2002/14459 ,  B41J2002/14491 ,  B41J2202/12 ,  B41J2202/21

Abstract: In a liquid ejection head, an ejection unit of a channel member includes an ejection hole, a pressurizing chamber connected to the ejection hole, a first channel and a second channel each connecting the pressurizing chamber and a first common channel, and a third channel connecting the pressurizing chamber and a second common channel. The first common channel, in the channel direction, includes a plurality of first portions, and a plurality of second portions each located between each two of the plurality of first portions and having smaller cross-sectional areas than those of the first portions in front and back of the same. In each of the plurality of ejection units, the first channel and the second channel are individually connected to two positions in the first common channel which sandwich at least one of the second portions between them.

公开(公告)号：US20180304631A1

公开(公告)日：2018-10-25

申请号：US15738030

申请日：2016-06-28

Applicant: KYOCERA Corporation

Inventor： Naoki KOBAYASHI

IPC: B41J2/14 ,  B41J2/045

CPC classification number: B41J2/14209 ,  B41J2/04581 ,  B41J2002/14217 ,  B41J2002/14225 ,  B41J2002/14419 ,  B41J2002/14459

Abstract: A channel member includes an integrating channel, a plurality of common channels, a plurality of individual channels, and a plurality of ejection ports. The integrating channel extends in a first direction. The plurality of common channels extends in a second direction, is spaced apart from each other in the first direction, and is individually connected to the integrating channel. The plurality of individual channels is connected to the respective plurality of common channels. Each of the plurality of ejection ports is linked with at least one corresponding individual channel. Each of the plurality of common channels includes a first connection region connected to the plurality of individual channels, and a second connection region connected to the integrating channel. Each of the plurality of common channels includes an opening in the second connection region linked with the integrating channel, and a damper in a portion facing the opening.

公开(公告)号：US10052871B2

公开(公告)日：2018-08-21

申请号：US15588992

申请日：2017-05-08

Applicant: KABUSHIKI KAISHA TOSHIBA ,  TOSHIBA TEC KABUSHIKI KAISHA

Inventor： Hideaki Nishida ,  Isao Suzuki ,  Keizaburo Yamamoto ,  Hiroyuki Kushida

IPC: B41J2/045 ,  B41J2/14

CPC classification number: B41J2/14233 ,  B41J2/14201 ,  B41J2/14209 ,  B41J2/1607 ,  B41J2/1609 ,  B41J2/162 ,  B41J2/1623 ,  B41J2/1625 ,  B41J2/1626 ,  B41J2202/12

Abstract: An inkjet head includes a substrate, a piezoelectric unit disposed on the substrate and including a plurality of piezoelectric elements arranged along a surface of the substrate, and a plurality of pressure chambers, each of the pressure chambers being formed between two adjacent piezoelectric elements, a plurality of lid members, each of which is disposed on two adjacent piezoelectric elements and has a hole connected to one of the pressure chambers, and a nozzle plate disposed on the plurality of lid members and having a plurality of nozzles through which the liquid is discharged, each of the nozzles being connected to one of the holes of the lid members.

公开(公告)号：US20180229496A1

公开(公告)日：2018-08-16

申请号：US15883118

申请日：2018-01-30

Applicant: TOSHIBA TEC KABUSHIKI KAISHA

Inventor： Noriyuki Kikuchi

IPC: B41J2/045 ,  B41J2/14 ,  B41J2/16

CPC classification number: B41J2/0452 ,  B41J2/04541 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2/14201 ,  B41J2/14209 ,  B41J2/1433 ,  B41J2/1618 ,  B41J2/1623 ,  B41J2002/14491 ,  H01L41/042 ,  H01L41/0973 ,  H01L41/1876 ,  H01L41/312

Abstract: In accordance with an embodiment, an inkjet head comprises a pressure chamber, an actuator, a nozzle plate, and a head drive circuit. The pressure chamber accommodates ink. The actuator is arranged in correspondence with the pressure chamber. The nozzle plate has a nozzle communicating with the pressure chamber. The head drive circuit applies a drive pulse signal, which includes a first pulse for returning a volume of the pressure chamber after expansion, a second pulse for returning the volume of the pressure chamber after contraction, and a third pulse for returning the volume of the pressure chamber after contraction, to the actuator in such a manner that the second pulse is applied without providing a standby time before the first pulse, and the third pulse is applied without providing the standby time after the first pulse.