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    Liquid ejecting head
    2.
    发明授权
    Liquid ejecting head 有权

    公开(公告)号：US10828893B2

    公开(公告)日：2020-11-10

    申请号：US16439002

    申请日：2019-06-12

    Applicant: CANON KABUSHIKI KAISHA

    Inventor： Masafumi Morisue ,  Yoshiyuki Nakagawa ,  Kazuhiro Yamada ,  Takuro Yamazaki ,  Ryo Kasai ,  Tomoko Kudo ,  Takashi Sugawara

    IPC: B41J2/14

    Abstract: A liquid ejecting head includes an element substrate including a common liquid chamber connected to a liquid supply source, a pressure chamber connected to the common liquid chamber and including inside an element to generate energy used for ejecting liquid, a bubble generating chamber connected to the common liquid chamber and including inside a pump to cause a flow of the liquid, and a connection flow path connecting the pressure chamber and the bubble generating chamber. The liquid ejecting head includes a first anti-cavitation film over the element to generate the energy and a second anti-cavitation film over the pump, and the first anti-cavitation film and the second anti-cavitation film have different film thicknesses.

    LIQUID DISCHARGE HEAD AND MANUFACTURING METHOD OF THE SAME
    3.
    发明申请
    LIQUID DISCHARGE HEAD AND MANUFACTURING METHOD OF THE SAME 审中-公开

    公开(公告)号：US20200331266A1

    公开(公告)日：2020-10-22

    申请号：US16837797

    申请日：2020-04-01

    Applicant: CANON KABUSHIKI KAISHA

    Inventor： Masataka Nagai ,  Masafumi Morisue ,  Koji Sasaki ,  Seiichiro Yaginuma ,  Shinji Kishikawa

    IPC: B41J2/14

    Abstract: A liquid discharge head includes a discharge port member including a discharge port, a flow path member including a pressure chamber and a liquid flow path, a substrate, and a structure that is arranged on the substrate on an upstream side of a center of the discharge port and that is configured to generate a flow of the liquid toward the discharge port. The liquid in the pressure chamber circulates. A position corresponding to a portion of the structure having a greatest height from a surface of the substrate is located on the upstream side of the center of the discharge port in a flow direction of the liquid. A thickness of the structure in a discharge direction of the liquid is 0.1 times or greater than a thickness of the liquid flow path in the discharge direction of the liquid.

    Method of forming space for use in analysis devices
    4.
    发明授权
    Method of forming space for use in analysis devices 有权

    公开(公告)号：US10364142B2

    公开(公告)日：2019-07-30

    申请号：US15661918

    申请日：2017-07-27

    Applicant: CANON KABUSHIKI KAISHA

    Inventor： Masafumi Morisue ,  Tamaki Sato ,  Akihiko Okano ,  Tetsushi Ishikawa

    IPC: B81C1/00 ,  B01L3/00

    Abstract: A method of forming a space includes a step of tenting, on a substrate having a recessed portion, a dry film including a dry film material that is to be a top plate on the recessed portion. The step of tenting the dry film includes a press period and a release period and performs a press-release cycle of the press period and the release period a plurality of times, a pressed state in which the dry film is pressed against the substrate by using a pressing member is maintained during the press period, and a released state in which the pressed state is released is maintained during the release period.

    LIQUID EJECTION HEAD
    5.
    发明申请
    LIQUID EJECTION HEAD 审中-公开

    公开(公告)号：US20190092012A1

    公开(公告)日：2019-03-28

    申请号：US16134211

    申请日：2018-09-18

    Applicant: CANON KABUSHIKI KAISHA

    Inventor： Masafumi Morisue ,  Yoshiyuki Nakagawa ,  Kazuhiro Yamada ,  Takuro Yamazaki ,  Ryo Kasai ,  Tomoko Kudo ,  Takashi Sugawara

    IPC: B41J2/14

    Abstract: A liquid ejection head including a substrate, an energy generating element which is provided on the substrate and is used for ejecting a liquid, a flow passage forming member which includes an ejection orifice, which ejects the liquid, and which forms a flow passage of the liquid between the flow passage forming member and the substrate, and an electrode which is provided on a surface of the flow passage forming member which adjoins the flow passage and which generates a flow of the liquid, in which at least a portion of the electrode is covered within the flow passage forming member.

    Liquid discharge head and manufacturing method of the same
    8.
    发明授权
    Liquid discharge head and manufacturing method of the same 有权

    公开(公告)号：US11135841B2

    公开(公告)日：2021-10-05

    申请号：US16837797

    申请日：2020-04-01

    Applicant: CANON KABUSHIKI KAISHA

    Inventor： Masataka Nagai ,  Masafumi Morisue ,  Koji Sasaki ,  Seiichiro Yaginuma ,  Shinji Kishikawa

    IPC: B41J2/14

    Abstract: A liquid discharge head includes a discharge port member including a discharge port, a flow path member including a pressure chamber and a liquid flow path, a substrate, and a structure that is arranged on the substrate on an upstream side of a center of the discharge port and that is configured to generate a flow of the liquid toward the discharge port. The liquid in the pressure chamber circulates. A position corresponding to a portion of the structure having a greatest height from a surface of the substrate is located on the upstream side of the center of the discharge port in a flow direction of the liquid. A thickness of the structure in a discharge direction of the liquid is 0.1 times or greater than a thickness of the liquid flow path in the discharge direction of the liquid.

    LIQUID EJECTION HEAD AND LIQUID EJECTION APPARATUS
    9.
    发明申请
    LIQUID EJECTION HEAD AND LIQUID EJECTION APPARATUS 有权

    公开(公告)号：US20210114378A1

    公开(公告)日：2021-04-22

    申请号：US17068365

    申请日：2020-10-12

    Applicant: CANON KABUSHIKI KAISHA

    Inventor： Masafumi Morisue

    IPC: B41J2/175 ,  B41J2/14

    Abstract: A liquid ejection head comprises a plurality of ejection orifices for ejecting liquid, a liquid supply flow path for supplying liquid to the plurality of ejection orifices and a plurality of branch flow paths branched from the liquid supply flow path each being held in communication with corresponding one of the plurality of ejection orifices. The plurality of ejection orifices form a first row and a second row each extending in parallel with each other. The first and second rows of ejection orifices are partially overlapping with each other as viewed in the direction orthogonal relative to the extending direction. The flow rate in the branch flow paths held in communication with the ejection orifices located in the overlapping part is made greater than the flow rate in the branch flow paths held in communication with the ejection orifices located in the non-overlapping part.

    LIQUID DISCHARGE HEAD
    10.
    发明申请
    LIQUID DISCHARGE HEAD 审中-公开

    公开(公告)号：US20200316956A1

    公开(公告)日：2020-10-08

    申请号：US16828708

    申请日：2020-03-24

    Applicant: CANON KABUSHIKI KAISHA

    Inventor： Koji Sasaki ,  Masafumi Morisue ,  Seiichiro Yaginuma ,  Shinji Kishikawa ,  Masataka Nagai

    IPC: B41J2/175

    Abstract: In a liquid discharge head, a first pump and a second pump are arranged inside a channel, the channel includes a pressure chamber including an energy generating element, and liquid inside the pressure chamber is circulatable between inside and outside of the pressure chamber by the first pump or the second pump. The first pump is arranged on one side relative to a midpoint of the channel in an extending direction of the channel, and the second pump is arranged on another side relative to the midpoint of the channel in the extending direction of the channel.

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