公开(公告)号：US12090758B2

公开(公告)日：2024-09-17

申请号：US17726849

申请日：2022-04-22

Applicant: CANON KABUSHIKI KAISHA

Inventor： Satoshi Kimura ,  Takuya Iwano ,  Hiromasa Amma ,  Shingo Okushima

IPC: B41J2/14 ,  B41J2/165

CPC classification number: B41J2/1433 ,  B41J2/16505 ,  B41J2002/14491

Abstract: A liquid ejection head includes a liquid ejection part configured to eject a liquid; and a guide part provided upstream of the liquid ejection part with respect to a conveying direction of a recording medium and configured to guide the front end of the recording medium conveyed to the liquid ejection part. The guide part has an inclined surface inclined so as to be more spaced apart from a conveyance path for the recording medium as the inclined surface is more distant from the liquid ejection part.

公开(公告)号：US10589531B2

公开(公告)日：2020-03-17

申请号：US16108113

申请日：2018-08-22

Applicant: CANON KABUSHIKI KAISHA

Inventor： Shogo Kawamura ,  Takuya Iwano

IPC: B41J2/175 ,  B41J2/14 ,  B41J29/13 ,  B41J25/34

Abstract: A liquid ejection head can suppress the influence of static electricity and the increase of a mounting force as well as downsize and save space of the liquid ejection head. The liquid ejection head is attachable and detachable with respect to a body connector provided on a liquid ejection apparatus body. Further, the liquid ejection head includes a head connector including a terminal which can be electrically connected to the body connector and a grounding member which is held at a coverage position where the terminal is covered in a non-contacting state with the body connector. The grounding member is formed with a deformable electroconductive member, and, as the head connector is made to move to a mounting position with respect to the body connector, is pressed by the body connector and is displaced to a position apart from the coverage position. Thus, the body connector can be connected with the terminal.

公开(公告)号：US20200047503A1

公开(公告)日：2020-02-13

申请号：US16531765

申请日：2019-08-05

Applicant: CANON KABUSHIKI KAISHA

Inventor： Tetsuji Kurata ,  Takuya Iwano ,  Hiromasa Amma

IPC: B41J2/165

Abstract: An inkjet printing apparatus includes a print head, to which a protective member configured to protect an ejection opening surface is attachable, and a head holder configured to hold the print head detachably. The inkjet printing apparatus further includes a guide portion provided in the head holder and configured to guide, in a width direction, the print head with the ejection opening surface protected by the protective member. The guide portion guides the print head with the protective member attached up to a predetermined position in the width direction and guides only the print head ahead of the predetermined position to prevent the protective member from exceeding the predetermined position.

公开(公告)号：US10363692B2

公开(公告)日：2019-07-30

申请号：US15151880

申请日：2016-05-11

Applicant: CANON KABUSHIKI KAISHA

Inventor： Satoshi Oikawa ,  Yukuo Yamaguchi ,  Mikiya Umeyama ,  Hiromasa Amma ,  Takuya Iwano ,  Satoshi Kimura ,  Naoko Tsujiuchi ,  Yasushi Iijima ,  Kyosuke Toda

IPC: B29C45/00 ,  B29L31/00 ,  B29C45/16 ,  B29C45/33

Abstract: There is provided a manufacturing method for molding a liquid supply member by using a first mold and a second mold in which the first mold is capable of being slid relatively to the second mold, the method including a first molding step of performing injection molding to form a first and second component parts of the liquid supply member at different positions from each other, an evacuating step of sliding the formed second component part in a direction intersecting with a direction of sliding of the first mold relative to the second mold and with a direction of the opening and the closing the first and the second mold, a contacting step of bringing the formed second component part into contact with the molded first component part, and a second molding step of performing injection molding to join the first component part and the second component part.

公开(公告)号：US20190009542A1

公开(公告)日：2019-01-10

申请号：US16025384

申请日：2018-07-02

Applicant: CANON KABUSHIKI KAISHA

Inventor： Tomoki Tsuji ,  Toshiaki Hirosawa ,  Hiromasa Amma ,  Takuya Iwano ,  Akira Kida ,  Tetsuji Kurata ,  Atsushi Kohnotoh

IPC: B41J2/155 ,  B41J2/14

CPC classification number: B41J2/17533 ,  B41J2/16505 ,  B41J2/16508 ,  B41J2/16511 ,  B41J2/16585 ,  B41J2/17536 ,  B41J29/12 ,  B41J2002/16502 ,  B41J2202/21

Abstract: A liquid ejection head unit includes an ejection port surface on which an ejection port is provided, includes a page-wide type liquid ejection head detachably attached to a liquid ejecting apparatus and a protective member detachably attached to the liquid ejection head, the liquid ejection head includes a first rail portion, the protective member includes a second rail portion along a longitudinal direction thereof, the protective member is made to slide to a first direction along the longitudinal direction of the liquid ejection head and covers the ejection port surface, the protective member is attached to the liquid ejection head and then, the liquid ejection head and the protective member are moved in a second direction opposite to the first direction and are removed from the liquid ejecting apparatus.

公开(公告)号：US10081185B2

公开(公告)日：2018-09-25

申请号：US15704447

申请日：2017-09-14

Applicant: CANON KABUSHIKI KAISHA

Inventor： Satoshi Kimura ,  Yukuo Yamaguchi ,  Mikiya Umeyama ,  Yasushi Iijima ,  Kyosuke Toda ,  Naoko Tsujiuchi ,  Hiromasa Amma ,  Takuya Iwano ,  Satoshi Oikawa

IPC: B41J2/04 ,  B41J2/05 ,  B41J2/14 ,  B41J2/16

CPC classification number: B41J2/1433 ,  B41J2/1601 ,  B41J2/1607 ,  B41J2/162 ,  B41J2/1623 ,  B41J2/1637 ,  B41J2002/14419

Abstract: An opposed surface of a first flow path forming member has a groove portion forming a supply passage, and a protruding portion protruding from the edge of the groove portion to form the side wall of the groove portion. An opposed surface of a second flow path forming member has a lid portion that abuts against the protruding portion of the first flow path forming member to cover the opening of the groove portion in the first flow path forming member. A joining member is formed by injection-molding of a resin to abut against an outer surface of the protruding portion of the first flow path forming member and the opposed surfaces of the first and second flow path forming members.

公开(公告)号：US10071512B2

公开(公告)日：2018-09-11

申请号：US15156569

申请日：2016-05-17

Applicant: CANON KABUSHIKI KAISHA

Inventor： Satoshi Kimura ,  Yukuo Yamaguchi ,  Mikiya Umeyama ,  Satoshi Oikawa ,  Hiromasa Amma ,  Takuya Iwano ,  Naoko Tsujiuchi ,  Yasushi Iijima ,  Kyosuke Toda

IPC: B28B7/22 ,  B29C45/00 ,  B29C45/16 ,  B29D22/00 ,  B41J2/14 ,  B41J2/01 ,  B29L31/00

CPC classification number: B29C45/0003 ,  B29C45/006 ,  B29C45/0062 ,  B29C45/1635 ,  B29D22/003 ,  B29L2031/7678 ,  B41J2/01 ,  B41J2/14032 ,  B41J2/1404 ,  B41J2/1752

Abstract: Provided is a method for manufacturing a liquid-ejecting head whereby in die slide injection molding it is possible to stably inject resin in secondary molding without damaging the shapes of parts that were formed in primary molding. In order for that, in the connecting section in which a convex section of a cover member is inserted into an opening of a liquid-supply member, the closest distance to the opening in the area where secondary resin is injected is made larger than the gap between the opening and the convex section. As a result, the resin is prevented from flowing into a liquid path during the secondary molding.

公开(公告)号：US09981476B2

公开(公告)日：2018-05-29

申请号：US15334061

申请日：2016-10-25

Applicant: CANON KABUSHIKI KAISHA

Inventor： Chiaki Muraoka ,  Yukuo Yamaguchi ,  Mikiya Umeyama ,  Hiromasa Amma ,  Takuya Iwano ,  Tokuji Kudo ,  Shimpei Yoshikawa

IPC: B41J2/175 ,  B41J29/13 ,  B41J2/14 ,  B41J29/02

CPC classification number: B41J2/1753 ,  B41J2/1433 ,  B41J2/17509 ,  B41J2/1752 ,  B41J2/17526 ,  B41J2/17553 ,  B41J29/02 ,  B41J29/13 ,  B41J2002/14491

Abstract: A liquid discharge head includes a recording element substrate including a recording element, an electronic substrate disposed outside the recording element substrate, an electric element mounted on the electronic substrate, a housing that supports the recording element substrate and the electronic substrate and is made of a first resin material, and a cover member that surrounds and shields the electric element and is made of a second resin material, wherein the second resin material has higher heat resistance than the first resin material.

公开(公告)号：US20180141340A1

公开(公告)日：2018-05-24

申请号：US15806700

申请日：2017-11-08

Applicant: CANON KABUSHIKI KAISHA

Inventor： Soji Kondo ,  Yukuo Yamaguchi ,  Toshiaki Hirosawa ,  Hiromasa Amma ,  Takuya Iwano ,  Noriyasu Nagai

IPC: B41J2/16

CPC classification number: B41J2/1637 ,  B41J2/14088 ,  B41J2/14145 ,  B41J2/1603 ,  B41J2/1623 ,  B41J2202/12 ,  B41J2202/19 ,  B41J2202/21

Abstract: A method of manufacturing a liquid supply unit includes a first molding step and a second molding step. In a first molding step, a resin is injected into different positions inside a mold assembly and a first member having a first contact portion, a second member having a second contact portion and an intermediate passage member having a passage structure to connect the first contact portion to the second contact portion are molded. In a second molding step, the mold assembly is disassembled, a die slide mold disposed inside the mold assembly is moved for positioning the members. Then, the mold assembly is clamped again and a resin is injected into the mold assembly. The first contact portion and the second contact portion are respectively held on the same surfaces inside the mold assembly during a period from the first molding step to completion of the second molding step.

公开(公告)号：US09969167B2

公开(公告)日：2018-05-15

申请号：US15076476

申请日：2016-03-21

Applicant: CANON KABUSHIKI KAISHA

Inventor： Hiromasa Amma ,  Mikiya Umeyama ,  Genji Inada ,  Takuya Iwano

IPC: B41J2/14 ,  B41J2/16 ,  B41J2/175 ,  B29C45/33

CPC classification number: B41J2/1637 ,  B29C45/33 ,  B41J2/14145 ,  B41J2/17513 ,  B41J2/17553 ,  B41J2002/14419

Abstract: A liquid ejection head has a plurality of ejection ports for ejecting a liquid, and a housing provided with a pair of liquid chambers which supply the liquid to a corresponding ejection port. A method for manufacturing the liquid ejection head includes: arranging a pair of mold pieces, of which width decreases gradually, to adjoin in the width direction thereof with the width decreasing in the opposite directions, molding a housing, and forming the pair of liquid chambers by drawing the pair of mold pieces from the molded housing in the direction in which the width increases.