公开(公告)号：US20210197566A1

公开(公告)日：2021-07-01

申请号：US17116945

申请日：2020-12-09

Applicant: CANON KABUSHIKI KAISHA

Inventor： Sayaka Seki ,  Kyosuke Toda ,  Shimpei Yoshikawa ,  Ryo Sato ,  Keiichiro Tsukuda ,  Kazuhiko Okito ,  Kenji Yabe ,  Yasuaki Kitayama

IPC: B41J2/16

Abstract: A liquid ejection head includes an element substrate having an energy-generating element configured to generate an energy for ejecting a liquid from an ejection orifice, a support member for supporting the element substrate, the support member including a liquid chamber formed therein to supply the liquid to the ejection orifice, and a damper portion for absorbing vibration of the liquid inside the liquid chamber, the damper portion being flexible. The support member has a through-hole for communicating with the liquid chamber at a position located above the liquid chamber in a vertical direction when the liquid ejection head is in a use orientation. The damper portion has a taper portion that tapers downwardly in the vertical direction and is positioned in such a manner that the tapering portion closes the through-hole, and the damper portion and the support member are attached to each other by a fixing member.

公开(公告)号：US20180029364A1

公开(公告)日：2018-02-01

申请号：US15661870

申请日：2017-07-27

Applicant: CANON KABUSHIKI KAISHA

Inventor： Sayaka Seki ,  Yuichiro Akama ,  Yuji Tamaru ,  Naoko Tsujiuchi ,  Yasuaki Kitayama

IPC: B41J2/14

CPC classification number: B41J2/1433 ,  B41J2/15 ,  B41J2/1752 ,  B41J2/17523 ,  B41J2/17559

Abstract: A liquid discharge head includes a recording element substrate having first to fourth discharge port groups, each of which includes a plurality of discharge ports for discharging liquid, first flow path connecting a first liquid tank to the first discharge port group, a second flow path connecting a second liquid tank to the second discharge port group, and a third flow path connecting a third liquid tank to the third discharge port group and the fourth discharge port group, wherein a flow resistance in the first flow path is smaller than a flow resistance in the second flow path and larger than a flow resistance in the third flow path, and wherein a ratio of the flow resistance in the second flow path to the flow resistance in the third flow path is 4 or less.

公开(公告)号：US09221258B2

公开(公告)日：2015-12-29

申请号：US14719614

申请日：2015-05-22

Applicant: CANON KABUSHIKI KAISHA

Inventor： Yuichiro Akama ,  Kiyomitsu Kudo ,  Satoshi Kimura ,  Tomotsugu Kuroda ,  Kyosuke Toda ,  Naoko Tsujiuchi ,  Sayaka Seki ,  Yosuke Takagi

IPC: B41J2/14

CPC classification number: B41J2/1433 ,  B41J2/1752 ,  B41J2/17553 ,  B41J2002/14491

Abstract: A liquid ejection head includes a recording element substrate for ejecting liquid, a mounting section to be loaded with a liquid container, and a connector equipped with a contact spring capable of expanding and contracting in an axial direction to be brought into contact with a contact substrate provided on the liquid container. The axial direction of the contact spring is inclined relative to the direction of loading the liquid container in the mounting section.

Abstract translation: 液体喷射头包括用于喷射液体的记录元件基板，装载有液体容器的安装部分和配备有能够沿轴向膨胀和收缩以与接触基板接触的接触弹簧的连接器 设在液体容器上。 接触弹簧的轴向相对于液体容器在安装部分中的装载方向倾斜。

公开(公告)号：US20150321475A1

公开(公告)日：2015-11-12

申请号：US14706857

申请日：2015-05-07

Applicant: CANON KABUSHIKI KAISHA

Inventor： Junji Tatsumi ,  Genji Inada ,  Sayaka Seki ,  Yuichiro Akama

IPC: B41J2/14 ,  B32B38/00 ,  B32B37/18 ,  B32B3/06 ,  B32B27/06 ,  B29C65/52 ,  B32B9/00 ,  B41J2/16 ,  B32B37/12

CPC classification number: B41J2/16 ,  B29C65/1406 ,  B29C65/4835 ,  B29C65/4845 ,  B29C65/524 ,  B29C66/1122 ,  B29C66/54 ,  B29C66/71 ,  B29C66/73112 ,  B29C66/7461 ,  B29K2701/00 ,  B29K2707/00 ,  B29K2709/02 ,  B29L2031/767 ,  B32B3/06 ,  B32B9/00 ,  B32B9/005 ,  B32B27/06 ,  B32B37/1292 ,  B32B37/18 ,  B32B38/0004 ,  B32B2037/1253 ,  B32B2250/02 ,  B32B2313/00 ,  B32B2315/02 ,  B41J2/14 ,  B41J2/1433 ,  B41J2/1603 ,  B41J2/162 ,  B41J2/1623 ,  F16B11/00 ,  F16B11/006 ,  Y10T156/1064 ,  B29K2083/00

Abstract: A liquid ejection head includes a recording element substrate that ejects liquid, and an element-substrate support member to which the recording element substrate is bonded with an adhesive. A groove to be filled with the adhesive is provided in a bonding region of the element-substrate support member, at which the element-substrate support member and the recording element substrate are bonded together, along a part or an entirety of the outer circumference of the recording element substrate.

Abstract translation: 液体喷射头包括喷射液体的记录元件基板和用粘合剂粘结记录元件基板的元件 - 基板支撑元件。 在元件 - 衬底支撑构件的元件 - 衬底支撑构件和记录元件衬底结合在一起的接合区域中，沿着一部分或整体的外周的一部分或全部设置有待填充有粘合剂的沟槽 记录元件基板。

公开(公告)号：US20230249458A1

公开(公告)日：2023-08-10

申请号：US18303982

申请日：2023-04-20

Applicant: CANON KABUSHIKI KAISHA

Inventor： Kyosuke Toda ,  Sayaka Seki ,  Shimpei Yoshikawa ,  Kazuhiko Okito ,  Kenji Yabe ,  Yasuaki Kitayama ,  Ryo Sato

IPC: B41J2/14 ,  B41J2/165

CPC classification number: B41J2/14 ,  B41J2/165

Abstract: A liquid discharge head includes an element substrate including an energy generation element configured to generate energy for discharging liquid from a discharge port, and a supporting member which supports the element substrate and in which a liquid chamber configured to supply liquid to the discharge port is formed, wherein a recessed portion communicating with the liquid chamber is formed at a position above the liquid chamber in a vertical direction in an orientation of the liquid discharge head when used, and wherein at least one of surfaces forming the recessed portion is formed of a flexible member configured to absorb vibration of liquid in the liquid chamber.

公开(公告)号：US10730299B2

公开(公告)日：2020-08-04

申请号：US16271697

申请日：2019-02-08

Applicant: CANON KABUSHIKI KAISHA

Inventor： Yuji Tamaru ,  Yuichiro Akama ,  Naoko Tsujiuchi ,  Sayaka Seki ,  Yasuaki Kitayama ,  Yusuke Hashimoto ,  Takanobu Manabe

IPC: B41J2/16

Abstract: There is provided a method for manufacturing a liquid discharge head including a liquid discharge head substrate and a flow path forming member, the liquid discharge head substrate having a base, a pressure generation portion provided at a front surface of the base to generate pressure for discharging a liquid, and a supply port for supplying the liquid to the pressure generation portion, and the flow path forming member forming a flow path for feeding the liquid supplied from the supply port to the pressure generation portion. The method includes removing a sacrificial layer by etching the base from a back surface of the base, in a state in which an end covering portion of a cover layer for covering the sacrificial layer is covered with the resin layer. The method suppresses formation of a crack in the end covering portion that covers the end portion of the sacrificial layer.

公开(公告)号：US10252521B2

公开(公告)日：2019-04-09

申请号：US15658237

申请日：2017-07-24

Applicant: CANON KABUSHIKI KAISHA

Inventor： Yuichiro Akama ,  Yuji Tamaru ,  Naoko Tsujiuchi ,  Sayaka Seki ,  Yasuaki Kitayama

IPC: B41J2/045 ,  B41J2/14 ,  B41J2/175 ,  B41J29/38

Abstract: A liquid discharge head includes a recording element substrate including energy generating elements configured to generate energy for discharging liquid and a driving circuit configured to drive the energy generating elements, and a wiring unit including a plurality of connection terminals for connection with the main body side and electrically connected to the recording element substrate. In the wiring unit, wiring lines are respectively connected to the plurality of connection terminals, and a functional element configured to regulate an applied voltage to a predetermined voltage or less is provided between at least one signal wiring line connected to the driving circuit and used to transmit a signal for driving the energy generating element among the wiring lines and the wiring line having a relatively larger electric capacitance than that of the signal wiring line.

公开(公告)号：US20180029358A1

公开(公告)日：2018-02-01

申请号：US15658237

申请日：2017-07-24

Applicant: CANON KABUSHIKI KAISHA

Inventor： Yuichiro Akama ,  Yuji Tamaru ,  Naoko Tsujiuchi ,  Sayaka Seki ,  Yasuaki Kitayama

IPC: B41J2/045 ,  B41J2/14

CPC classification number: B41J2/04541 ,  B41J2/0458 ,  B41J2/04581 ,  B41J2/1433 ,  B41J2/1752 ,  B41J2/1753 ,  B41J2/17553 ,  B41J29/38 ,  B41J2002/14491

Abstract: A liquid discharge head includes a recording element substrate including energy generating elements configured to generate energy for discharging liquid and a driving circuit configured to drive the energy generating elements, and a wiring unit including a plurality of connection terminals for connection with the main body side and electrically connected to the recording element substrate. In the wiring unit, wiring lines are respectively connected to the plurality of connection terminals, and a functional element configured to regulate an applied voltage to a predetermined voltage or less is provided between at least one signal wiring line connected to the driving circuit and used to transmit a signal for driving the energy generating element among the wiring lines and the wiring line having a relatively larger electric capacitance than that of the signal wiring line.

公开(公告)号：US20170334202A1

公开(公告)日：2017-11-23

申请号：US15497496

申请日：2017-04-26

Applicant: CANON KABUSHIKI KAISHA

Inventor： Sayaka Seki ,  Yuichiro Akama ,  Yuji Tamaru ,  Naoko Tsujiuchi

IPC: B41J2/145 ,  B41J2/21

CPC classification number: B41J2/145 ,  B41J2/15 ,  B41J2/21 ,  B41J2/2125 ,  B41J19/147

Abstract: In a liquid discharge head, a third discharge port array group C1 which discharges a liquid of cyan, a second discharge port array group M1 which discharges a liquid of magenta, a fourth discharge port array group G which discharges a liquid of gray, a first discharge port array group Y which discharges a liquid of yellow, a second discharge port array group M2 which discharges a liquid of magenta, a third discharge port array group C2 which discharges a liquid of cyan are arranged in this order, in a direction. Each of discharge port arrays of the fourth discharge port array group G is formed of a plurality of discharge ports having a diameter smaller than that of a plurality of discharge ports which constitute first discharge port arrays of the second and third discharge port array groups C1, C2, M1 and M2.

公开(公告)号：US09463624B2

公开(公告)日：2016-10-11

申请号：US14723219

申请日：2015-05-27

Applicant: CANON KABUSHIKI KAISHA

Inventor： Sayaka Seki ,  Naoko Tsujiuchi ,  Satoshi Kimura ,  Kiyomitsu Kudo ,  Kazuhiro Idogawa

IPC: B41J2/14 ,  B41J2/16

CPC classification number: B41J2/1433 ,  B41J2/14024 ,  B41J2/14072 ,  B41J2/1603 ,  B41J2/162 ,  B41J2/1623 ,  B41J2/1753 ,  B41J2/17553 ,  B41J2002/14491

Abstract: A liquid discharging head includes a recording element substrate configured to discharge a liquid; an electric wiring substrate that is provided with a lead terminal that is connected to the recording element substrate; and a supporting member to which the electric wiring substrate is bonded. The electric wiring substrate is bonded to the supporting member with two or more types of adhesives including at least a first adhesive and a second adhesive whose volume resistivity is higher than that of the first adhesive, a bond strength of the first adhesive is higher than a bond strength of the second adhesive, and, at the supporting member, the second adhesive is applied such that the second adhesive is provided closer to the lead terminal than the first adhesive.

Abstract translation: 液体排出头包括：配置成排出液体的记录元件基板; 电接线基板，其设置有连接到所述记录元件基板的引线端子; 以及与所述电布线基板接合的支撑构件。 电气布线基板用两种或多种类型的粘合剂粘合到支撑构件，所述粘合剂至少包括第一粘合剂和体积电阻率高于第一粘合剂的第二粘合剂，第一粘合剂的粘合强度高于 第二粘合剂的粘合强度，并且在支撑构件处施加第二粘合剂，使得第二粘合剂被设置为比第一粘合剂更靠近引线端子。