公开(公告)号：US12122159B2

公开(公告)日：2024-10-22

申请号：US18082257

申请日：2022-12-15

Applicant: SII Printek Inc.

Inventor： Hitoshi Nakayama

IPC: B41J2/14

CPC classification number: B41J2/14209 ,  B41J2/14201 ,  B41J2/14072 ,  B41J2002/14225

Abstract: A head chip, a liquid jet head, and a liquid jet recording device each capable of increasing pressure generated while achieving power saving are provided. The head chip according to an aspect of the present disclosure includes a flow channel member having a pressure chamber containing liquid, an actuator plate which is stacked on the flow channel member in a state of being opposed to the pressure chamber in a first direction, a drive electrode which is formed on a surface facing to the first direction in the actuator plate, and which is configured to deform the actuator plate in the first direction to change a volume of the pressure chamber, and a non-drive member which is stacked at an opposite side to the flow channel member across the actuator plate in the first direction, and which is configured to limit a displacement of the actuator plate toward an opposite side to the flow channel member in the first direction.

公开(公告)号：US20240326435A1

公开(公告)日：2024-10-03

申请号：US18589517

申请日：2024-02-28

Applicant: BROTHER KOGYO KABUSHIKI KAISHA

Inventor： Keita SUGIURA ,  Hiroshi KATAYAMA

IPC: B41J2/155 ,  B41J2/14 ,  B41J2/175 ,  B41J29/02

CPC classification number: B41J2/155 ,  B41J2/14201 ,  B41J2/175 ,  B41J29/02 ,  B41J2002/14491

Abstract: A liquid ejecting head has two unit heads. Each of the two unit heads includes a channel structure and actuators. The channel structure has nozzles, a supply channel, a return channel, a connecting channel connecting the supply channel and the return channel, a supply port, and a discharge port. The two unit heads are arranged to be shifted from each other in the first direction, and are adjacent along a third direction orthogonal to the first direction. The two unit heads have a same spacing distance in the first direction between the nozzles, and a set of the supply port and the discharge port of one unit head and a set of the supply port and the discharge port of the other unit head are arranged to be opposite to each other in the first direction.

公开(公告)号：US20240316926A1

公开(公告)日：2024-09-26

申请号：US18611025

申请日：2024-03-20

Applicant: BROTHER KOGYO KABUSHIKI KAISHA

Inventor： Hiroto SUGAHARA ,  Fumika HATTA ,  Itsuki MORIMOTO ,  Toru YAMASHITA ,  Etsuteru INOUE ,  Hirotoshi ISHIZAKI

IPC: B41J2/14 ,  B41J2/175

CPC classification number: B41J2/14201 ,  B41J2/175 ,  B41J2002/14306 ,  B41J2002/14491

Abstract: An ink-jet head includes a flow passage member formed with: a first common flow passage; a first ink supply port; first individual flow passages; a second common flow passage; a second ink supply port; and second individual flow passages, first pressure generators, second pressure generators, a first conductive part, and a second conductive part. The first ink supply port is positioned on one side in the first direction, the second ink supply port is positioned on the other side in the first direction, an end portion of the first conductive part positioned nearer to a control circuit is positioned on the other side in the first direction, and an end portion of the second conductive part positioned nearer to the control circuit is positioned on the one side in the first direction.

公开(公告)号：US20240308253A1

公开(公告)日：2024-09-19

申请号：US18595793

申请日：2024-03-05

Applicant: BROTHER KOGYO KABUSHIKI KAISHA

Inventor： Yuta ARAKAWA

IPC: B41J25/34 ,  B41J2/14 ,  B41J25/00

CPC classification number: B41J25/34 ,  B41J25/001 ,  B41J2/14201 ,  B41J2002/14491 ,  B41J2202/14 ,  B41J2202/20

Abstract: A liquid ejecting device includes a head unit and a mounting unit. The head unit includes: a first channel member formed with a first channel having an ejection hole; and a first electronic member including a first terminal. The first channel member has an ejection surface in which the ejection hole is open. The mounting unit includes a second electronic member having a plate shape. The second electronic member includes a second terminal. The liquid ejecting device is switchable between: a first state in which the first and second terminals are separated from each other; and a second state in which the first and second terminals are in contact with each other. When the liquid ejecting device is in the second state, the second electronic member extends parallel to the ejection surface and a contact point between the first and second terminals is positioned upward relative to the first channel.

公开(公告)号：US20240308215A1

公开(公告)日：2024-09-19

申请号：US18604550

申请日：2024-03-14

Applicant: Yuzuru Kuramochi

Inventor： Yuzuru Kuramochi

IPC: B41J2/14

CPC classification number: B41J2/14201 ,  B41J2/1433

Abstract: A liquid discharge head includes a nozzle plate, a needle valve, a mover, a housing, and a sealing member. The needle valve includes a first part having a diameter and a second part having a diameter smaller than the first part. The second part has a leading end contactable with a nozzle to close the nozzle. The needle valve is movable between a position to open the nozzle and a position to close the nozzle. The mover moves the needle valve. The housing has a side wall, a bottom wall, and a liquid chamber communicating with the nozzle. The side wall and the bottom wall define a container containing the mover. The sealing member is disposed between the first part of the needle valve and the bottom wall to seal the container from the liquid chamber. The sealing member is deformable in accordance with the movement of the needle valve.

公开(公告)号：US20240308205A1

公开(公告)日：2024-09-19

申请号：US18589999

申请日：2024-02-28

Applicant: BROTHER KOGYO KABUSHIKI KAISHA

Inventor： Yuta ARAKAWA

IPC: B41J2/045 ,  B41J2/14

CPC classification number: B41J2/04526 ,  B41J2/14201 ,  B41J2002/14467 ,  B41J2202/14

Abstract: A liquid ejecting device includes: a head unit including a first channel member formed with a first channel having a first communication port; and a mounting unit including a positioning part and a second channel member formed with a second channel having a second communication port. The liquid ejecting device is switchable between: a first state in which the head unit is not positioned relative to the mounting unit, and the first communication port and the second communication port are not in communication with each other; and a second state in which the head unit is positioned relative to the mounting unit, and the first communication port and the second communication port are in communication with each other. The liquid ejecting device is shifted from the first state to the second state as the second channel member and the positioning part are moved relative to the head unit.

公开(公告)号：US20240294009A1

公开(公告)日：2024-09-05

申请号：US18581651

申请日：2024-02-20

Applicant: SEIKO EPSON CORPORATION

Inventor： Manabu TANIGUCHI ,  Takanori AIMONO ,  Akinori TANIUCHI ,  Masashi FUJIOKA ,  Eiichiro WATANABE

IPC: B41J2/14

CPC classification number: B41J2/14201 ,  B41J2/1433 ,  B41J2002/14306 ,  B41J2002/14475

Abstract: The first nozzle includes a first portion and a second portion. The second nozzle includes a third portion and a fourth portion. The capacity of the first portion is smaller than the capacity of the second portion. The capacity of the third portion is smaller than the capacity of the fourth portion. The capacity of the first portion is smaller than the capacity of the third portion. The length of the second portion in the X direction is greater than the length of the fourth portion in the X direction.

公开(公告)号：US12049082B2

公开(公告)日：2024-07-30

申请号：US17987433

申请日：2022-11-15

Applicant: FUJIFILM Dimatix, Inc.

Inventor： Christoph Menzel

IPC: B41J2/14

CPC classification number: B41J2/14201

Abstract: A method for ejecting fluid from a fluid ejector includes actuating a piezoelectric actuator to cause deformation of a membrane defining a wall at a first end of an elongated channel of the fluid ejector, the deformation of the membrane causing ejection of a droplet of fluid from a nozzle disposed at a second end of the channel. The elongated channel fluidically connects a first channel to the nozzle, the first channel disposed at the first end of the elongated channel, and wherein an impedance of the first channel is at least ten times greater than an impedance of the elongated channel. Deformation of the membrane induces fluid flow along the elongated channel, and wherein at least 60% of the fluid flow induced by the deformation of the membrane is in a direction extending from the first end of the elongated channel to the second end of the elongated channel.

公开(公告)号：US20240227395A9

公开(公告)日：2024-07-11

申请号：US18547507

申请日：2022-02-24

Applicant: YAMAGATA UNIVERSITY ,  SII PRINTEK INC.

Inventor： Shinri SAKAI ,  Ryoichi BIZEN

IPC: B41J2/14 ,  B41J2/16 ,  G03F7/20 ,  G03F7/40

CPC classification number: B41J2/14201 ,  B41J2/162 ,  B41J2/1631 ,  G03F7/20 ,  G03F7/40

Abstract: The present disclosure provides an inkjet head capable of continuously ejecting droplets at a high frequency even when an ink having high viscosity is used. The present is directed to an inkjet head characterized in that the inkjet head comprises a nozzle plate portion on which a nozzle for ejecting droplets is formed, a vibration plate disposed opposite to an inlet of the nozzle, a weight disposed in contact with the vibration plate, and an actuator in contact with the weight, wherein the actuator is driven by a drive signal to fly the weight to eject ink in the ink chamber formed between the nozzle plate portion and the vibration plate from the nozzle, and wherein a storage space in which the actuator is disposed is configured to be separated from the ink chamber by the vibration plate.

公开(公告)号：US12023926B2

公开(公告)日：2024-07-02

申请号：US17966909

申请日：2022-10-17

Applicant: Yuki Fujimura ,  Hitoshi Usami

Inventor： Yuki Fujimura ,  Hitoshi Usami

IPC: B41J2/14

CPC classification number: B41J2/14201 ,  B41J2/1433 ,  B41J2002/14491

Abstract: A liquid discharge head includes: a first member; and a second member bonded to the first member, wherein the first member has: a first protrusion protruding to the second member, a second protrusion protruding to the second member, the second protrusion having a height different from the first protrusion, the second member includes: a first portion bonded to the first protrusion with a first adhesive; and a second portion bonded to the second protrusion with a second adhesive, the second portion having a height different from the first portion, and a type of the second adhesive is different from a type of the first adhesive.