公开(公告)号：US12122157B2

公开(公告)日：2024-10-22

申请号：US17869697

申请日：2022-07-20

Applicant: Samsung Display Co., LTD.

Inventor： Dong Jun Lee ,  Che Ho Lim ,  Kang Soo Han ,  Ho-Yong Shin ,  Gyeong Eun Eoh ,  Jun Hwi Lim

IPC: B41J2/14 ,  B41J2/175 ,  B41J2/18

CPC classification number: B41J2/14201 ,  B41J2/17563 ,  B41J2/18 ,  B41J2002/14403 ,  B41J2002/14419 ,  B41J2/17503 ,  B41J2202/12

Abstract: An embodiment of the present invention provides an inkjet head including: a head body having a storage chamber capable of storing ink; a first inlet pipe and a second inlet pipe connected to the head body and which extend in first different directions and inject the ink in the first different directions; a first outlet pipe and a second outlet pipe connected to the head body and which extend in second different directions and eject the ink in the second different directions; and a nozzle plate positioned under the head body and which includes a plurality of nozzles.

公开(公告)号：US20240173988A1

公开(公告)日：2024-05-30

申请号：US18522323

申请日：2023-11-29

Applicant: SEIKO EPSON CORPORATION

Inventor： Noriaki OKAZAWA ,  Hidenori SOKABE

IPC: B41J2/175 ,  B41J2/14

CPC classification number: B41J2/17563 ,  B41J2/14 ,  B41J2002/14403

Abstract: A filter member including filter plates laminated in a first direction and having filter holes is included. The filter member includes a first filter plate at which a first through-hole is formed and a second filter plate at which a second through-hole is formed. The filter hole includes a penetrating portion that is a portion where a part of the first through-hole overlaps with a part of the second through-hole when viewed in the first direction and that penetrates from a first surface to a second surface, and a first portion adjacent to the penetrating portion and recessed by more than half a thickness of the filter member from a second surface to a first surface when viewed in the first direction.

公开(公告)号：US11904610B2

公开(公告)日：2024-02-20

申请号：US17242621

申请日：2021-04-28

Applicant: FUJIFILM Dimatix, Inc.

Inventor： Christoph Menzel ,  Darren Imai

IPC: B41J2/14 ,  B41J2/16

CPC classification number: B41J2/14209 ,  B41J2/14233 ,  B41J2/161 ,  B41J2/1623 ,  B41J2/1628 ,  B41J2/1629 ,  B41J2/1631 ,  B41J2/1632 ,  B41J2002/14403 ,  B41J2002/14459 ,  B41J2202/12

Abstract: A fluid ejector includes a nozzle layer, a body, an actuator and a membrane. The body includes a pumping chamber, a return channel, and a first passage fluidically connecting the pumping chamber to an entrance of the nozzle. A second passage fluidically connects the entrance of the nozzle to the return channel. The actuator is configured to cause fluid to flow out of the pumping chamber such that actuation of the actuator causes fluid to be ejected from the nozzle. The membrane is formed across and partially blocks at least one of the first passage, the second passage or the entrance of the nozzle. The membrane has at least one hole therethrough such that in operation of the fluid ejector fluid flows through the at least one hole in the membrane.

公开(公告)号：US20230311505A1

公开(公告)日：2023-10-05

申请号：US18128070

申请日：2023-03-29

Applicant: CANON KABUSHIKI KAISHA

Inventor： NAOYA TSUKAMOTO

IPC: B41J2/14 ,  B41J2/16

CPC classification number: B41J2/14274 ,  B41J2/1623 ,  B41J2/1612 ,  B41J2002/14403

Abstract: A liquid ejection recording element unit includes: a first substrate provided with a first partition wall that demarcates a first flow channel including an ejection port of a liquid, and an energy generating portion that generates energy for ejecting the liquid from the first flow channel; and a second substrate provided with a second partition wall that demarcates a second flow channel including a supply port of the liquid, the second substrate being stacked on the first substrate, so that the second flow channel communicates with the first flow channel. The first partition wall and the second partition wall are contiguous across a predetermined gap, in the stacking direction of the first substrate and the second substrate. A hydraulic diameter of the gap is smaller than a hydraulic diameter of a smallest flow channel portion having a minimum flow channel cross-sectional area in the first flow channel.

公开(公告)号：US20230191795A1

公开(公告)日：2023-06-22

申请号：US18079937

申请日：2022-12-13

Applicant: CANON KABUSHIKI KAISHA

Inventor： Soji KONDO ,  NAOZUMI NABESHIMA ,  KAZUYA YOSHII

IPC: B41J2/175 ,  B41J2/14 ,  B41J2/185

CPC classification number: B41J2/17596 ,  B41J2/14201 ,  B41J2/185 ,  B41J2/17563 ,  B41J2002/14403 ,  B41J2002/14491 ,  B41J2002/14467

Abstract: A liquid ejection head includes a pressure chamber communicating with an ejection port, an ejection element which ejects the liquid from the port, and a circulation path for the liquid including the chamber. The path includes a supply channel for supplying the liquid to the chamber, a collection channel for collecting the liquid from the chamber, a circulation pump which supplies the collected liquid to the supply channel, and a pressure adjustment unit configured to adjust a pressure on the liquid to be supplied to the supply channel. A pressure P21 on the liquid supplied to the chamber while the pump is stopped, a pressure P22 on the liquid supplied to the chamber while the pump is driven, and a pressure loss ΔP from the adjustment unit to the chamber while the pump is driven satisfy P22>P21 and P22−ΔP

公开(公告)号：US11673399B2

公开(公告)日：2023-06-13

申请号：US17443903

申请日：2021-07-28

Applicant: SEIKO EPSON CORPORATION

Inventor： Takahiro Kanegae ,  Katsuhiro Okubo ,  Hiroyuki Hagiwara ,  Nobuaki Ito ,  Shun Katsuie

IPC: B41J2/175 ,  B41J2/18 ,  B41J2/14 ,  B41J2/155

CPC classification number: B41J2/17563 ,  B41J2/18 ,  B41J2/14233 ,  B41J2/155 ,  B41J2002/14403 ,  B41J2202/12 ,  B41J2202/20

Abstract: There is provided a liquid ejecting head which is long in a first direction and short in a second direction, including: a first introduction section; a second introduction section; a first filter chamber group having a first filter chamber and a second filter chamber; a second filter chamber group having a third filter chamber and a fourth filter chamber; a first supply flow path for supplying the liquid from the first introduction section to the first filter chamber group; and a second supply flow path for supplying the liquid from the second introduction section to the second filter chamber group, in which the first introduction section, the second introduction section, the first filter chamber group, and the second filter chamber group are arranged side by side in this order in the first direction.

公开(公告)号：US11648778B2

公开(公告)日：2023-05-16

申请号：US17387685

申请日：2021-07-28

Applicant: Seiko Epson Corporation

Inventor： Takahiro Kanegae ,  Katsuhiro Okubo ,  Hiroyuki Hagiwara ,  Nobuaki Ito ,  Shun Katsuie

IPC: B41J2/175 ,  B41J2/18 ,  B41J2/14 ,  B41J2/155

CPC classification number: B41J2/17563 ,  B41J2/18 ,  B41J2/14233 ,  B41J2/155 ,  B41J2002/14403 ,  B41J2202/12 ,  B41J2202/20

Abstract: There is provided a liquid ejecting head including: first and second nozzle rows extending in a first direction; a first supply flow path; a first filter chamber having a first inlet; and a second filter chamber having a second inlet, in which the first and second nozzle rows are shifted from each other in both the first direction and a second direction orthogonal to the first direction, the first supply flow path has a branch flow path for distributing the liquid between the first filter chamber and the second filter chamber at a branch position, the branch position is disposed between the first filter chamber and the second filter chamber in a plan view, and the first and second inlets are disposed at a part where the first filter chamber and the second filter chamber overlap each other when viewed in the second direction.

公开(公告)号：US20190126617A1

公开(公告)日：2019-05-02

申请号：US16082317

申请日：2016-07-12

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT, L.P.

Inventor： Sean P McClelland

IPC: B41J2/14

CPC classification number: B41J2/1433 ,  B41J2/1404 ,  B41J2002/14403

Abstract: According to examples, a multi-layered nozzle fluid ejection device may include a first nozzle layer including a first nozzle layer thickness and a first nozzle layer orifice, and a second nozzle layer including a second nozzle layer thickness and a second nozzle layer orifice. The first nozzle layer orifice may include a first nozzle layer orifice dimension that is different than a second nozzle layer orifice dimension of the second nozzle layer orifice.

公开(公告)号：US20190100003A1

公开(公告)日：2019-04-04

申请号：US15939450

申请日：2018-03-29

Applicant: BROTHER KOGYO KABUSHIKI KAISHA

Inventor： Motohiro TSUBOI ,  Shogo MORI

IPC: B41J2/14 ,  B41J29/13 ,  H05K1/02

CPC classification number: B41J2/1429 ,  B41J2/14233 ,  B41J2/1433 ,  B41J2/175 ,  B41J2/17523 ,  B41J2/1753 ,  B41J2/17553 ,  B41J2/17563 ,  B41J2/18 ,  B41J2/21 ,  B41J29/13 ,  B41J2002/14362 ,  B41J2002/14403 ,  B41J2002/14459 ,  B41J2002/14491 ,  B41J2202/12 ,  B41J2202/19 ,  B41J2202/20 ,  H05K1/0272

Abstract: A head unit includes: a head module having a nozzle surface; a casing; a first connector having a first communication opening; a second connector having a second communication opening; a first liquid-passage tube connected to the first communication opening; first and second branch-liquid-passage tubes connected to the first liquid-passage tube; a first tube joint connecting the first liquid-passage tube to the first and second branch-liquid-passage tubes; a second liquid-passage tube connected to the second communication opening; third and fourth branch-liquid-passage tubes connected to the second liquid-passage tube; and a second tube joint connecting the second liquid-passage tube to the third and fourth branch-liquid-passage tubes. The first tube joint is disposed between the second connector and the second tube joint when viewed in a direction parallel with the nozzle surface.

公开(公告)号：US20190009544A1

公开(公告)日：2019-01-10

申请号：US16027506

申请日：2018-07-05

Applicant: CANON KABUSHIKI KAISHA

Inventor： Kouhei Nakagawa ,  Arihiro Saito ,  Takashi Saito

IPC: B41J2/155 ,  B41J2/14 ,  C09D11/322

CPC classification number: B41J2/155 ,  B41J2/14016 ,  B41J2/1404 ,  B41J2/14201 ,  B41J2/175 ,  B41J2/18 ,  B41J2002/14403 ,  B41J2202/11 ,  B41J2202/12 ,  B41J2202/20 ,  B41J2202/21 ,  C09D11/102 ,  C09D11/322 ,  C09D11/324

Abstract: An object of the present invention is to provide an ink jet recording method capable of recording a high-quality image in which occurrence of fine unevenness is decreased.The ink jet recording method is a method of recording an image by ejecting ink from a recording head including an ejection orifice ejecting the ink, an ejection element generating energy for ejecting the ink, and first and second flow paths which communicate between the ejection orifice and the ejection element and in which the ink flows. The ink jet recording method includes an ejection step of ejecting the ink from the ejection orifice; and a flow step of flowing the ink in the first flow path to the second flow path separately from the ejection step, wherein the ink is aqueous ink having a dynamic surface tension of 35 mN/m or more to 48 mN/m or less at 10 milliseconds.