公开(公告)号：US10343406B2

公开(公告)日：2019-07-09

申请号：US15391417

申请日：2016-12-27

Applicant: CANON KABUSHIKI KAISHA

Inventor： Keiji Matsumoto ,  Jun Yamamuro ,  Kazuhiro Asai ,  Koji Sasaki ,  Kunihito Uohashi ,  Seiichiro Yaginuma ,  Ryotaro Murakami ,  Masahisa Watanabe ,  Tomohiko Nakano ,  Keiji Edamatsu ,  Haruka Nakada ,  Kenji Fujii

IPC: B41J2/16 ,  G03F7/029

Abstract: A liquid ejection head has an ejection port forming region which includes liquid ejection energy generating elements arranged on a substrate, liquid supply ports each running through the substrate and having an opening at a surface of the substrate, a liquid path formed on the surface as a space containing the liquid ejection energy generating elements and the liquid supply ports therein, and ejection ports corresponding to the respective liquid ejection energy generating elements. The liquid ejection head is manufactured by forming a liquid path forming layer on the substrate using a dry film resist, forming an ejection port forming layer on the liquid path forming layer, forming a liquid path in the liquid path forming layer and ejection ports in the ejection port forming layer. The substrate has dummy holes each having an opening at a surface of the substrate outside the ejection port forming region.

公开(公告)号：US10322584B2

公开(公告)日：2019-06-18

申请号：US15489501

申请日：2017-04-17

Applicant: CANON KABUSHIKI KAISHA

Inventor： Jun Yamamuro ,  Kenji Fujii ,  Kazuhiro Asai ,  Keiji Matsumoto ,  Koji Sasaki ,  Kunihito Uohashi ,  Seiichiro Yaginuma ,  Masahisa Watanabe ,  Ryotaro Murakami ,  Tomohiko Nakano ,  Keiji Edamatsu ,  Haruka Nakada

IPC: B41J2/16 ,  B41J2/14

Abstract: A method for manufacturing a liquid ejection head including the steps of preparing a substrate including, on a surface of the substrate, a layer having a plurality of openings in which opening portions of supply portions are located and which are arrayed in an array direction and another opening which is different from the plurality of openings and is located beyond the array end portion in the array direction, and attaching a dry film for forming flow passages to the substrate and the layer.

公开(公告)号：US10286668B2

公开(公告)日：2019-05-14

申请号：US15391417

申请日：2016-12-27

Applicant: CANON KABUSHIKI KAISHA

Inventor： Keiji Matsumoto ,  Jun Yamamuro ,  Kazuhiro Asai ,  Koji Sasaki ,  Kunihito Uohashi ,  Seiichiro Yaginuma ,  Ryotaro Murakami ,  Masahisa Watanabe ,  Tomohiko Nakano ,  Keiji Edamatsu ,  Haruka Nakada ,  Kenji Fujii

IPC: B41J2/16 ,  G03F7/029

Abstract: A liquid ejection head has an ejection port forming region which includes liquid ejection energy generating elements arranged on a substrate, liquid supply ports each running through the substrate and having an opening at a surface of the substrate, a liquid path formed on the surface as a space containing the liquid ejection energy generating elements and the liquid supply ports therein, and ejection ports corresponding to the respective liquid ejection energy generating elements. The liquid ejection head is manufactured by forming a liquid path forming layer on the substrate using a dry film resist, forming an ejection port forming layer on the liquid path forming layer, forming a liquid path in the liquid path forming layer and ejection ports in the ejection port forming layer. The substrate has dummy holes each having an opening at a surface of the substrate outside the ejection port forming region.

公开(公告)号：US20170203569A1

公开(公告)日：2017-07-20

申请号：US15391417

申请日：2016-12-27

Applicant: CANON KABUSHIKI KAISHA

Inventor： Keiji Matsumoto ,  Jun Yamamuro ,  Kazuhiro Asai ,  Koji Sasaki ,  Kunihito Uohashi ,  Seiichiro Yaginuma ,  Ryotaro Murakami ,  Masahisa Watanabe ,  Tomohiko Nakano ,  Keiji Edamatsu ,  Haruka Nakada ,  Kenji Fujii

IPC: B41J2/16 ,  G03F7/16

CPC classification number: B41J2/164 ,  B41J2/1603 ,  B41J2/161 ,  B41J2/162 ,  B41J2/1628 ,  B41J2/1629 ,  B41J2/1631 ,  B41J2/1632 ,  B41J2/1635 ,  B41J2/1642 ,  G03F7/029 ,  Y10T29/49083 ,  Y10T29/49401

Abstract: A liquid ejection head has an ejection port forming region which includes liquid ejection energy generating elements arranged on a substrate, liquid supply ports each running through the substrate and having an opening at a surface of the substrate, a liquid path formed on the surface as a space containing the liquid ejection energy generating elements and the liquid supply ports therein, and ejection ports corresponding to the respective liquid ejection energy generating elements. The liquid ejection head is manufactured by forming a liquid path forming layer on the substrate using a dry film resist, forming an ejection port forming layer on the liquid path forming layer, forming a liquid path in the liquid path forming layer and ejection ports in the ejection port forming layer. The substrate has dummy holes each having an opening at a surface of the substrate outside the ejection port forming region.

公开(公告)号：US08778599B2

公开(公告)日：2014-07-15

申请号：US14067012

申请日：2013-10-30

Applicant: Canon Kabushiki Kaisha

Inventor： Kunihito Uohashi ,  Kazuhiro Asai ,  Keiji Matsumoto

IPC: B41J2/16 ,  G03F7/20

CPC classification number: B41J2/1631 ,  B41J2/1603 ,  B41J2/1632 ,  B41J2/1634 ,  B41J2/1645 ,  B41J2/1646

Abstract: Provided is a method of producing an ink ejection head including a substrate, an ink ejection energy-generating element, a flow path-forming member, and an ejection orifice-forming member having an ink ejection orifice, the ink ejection orifice having, on a side open to an outside, a portion whose sectional area is constant and a portion whose sectional area increases from the portion to an ink ejection energy-generating element side, the method including: forming, on the substrate, a first negative photosensitive resist; forming, on the first negative photosensitive resist, a second negative photosensitive resist; partially mixing the first negative photosensitive resist and the second negative photosensitive resist to form a compatible layer; and subjecting the second negative photosensitive resist and the compatible layer to collective exposure and development to form the ink ejection orifice.

Abstract translation: 提供了一种制造喷墨头的方法，该喷墨头包括基板，喷墨能量产生元件，流路形成部件和具有墨喷射孔的喷射孔形成部件，墨喷射孔具有： 一侧向外侧开口，截面积恒定的部分和截面积从该部分向喷墨能量产生元件侧增加的部分，所述方法包括：在所述基板上形成第一负光敏抗蚀剂; 在第一负光敏抗蚀剂上形成第二负光敏抗蚀剂; 部分地混合第一负光敏抗蚀剂和第二负光敏抗蚀剂以形成相容层; 并使第二负光敏抗蚀剂和相容层经受集体曝光和显影以形成喷墨孔。

公开(公告)号：US08753800B2

公开(公告)日：2014-06-17

申请号：US13903172

申请日：2013-05-28

Applicant: Canon Kabushiki Kaisha

Inventor： Kunihito Uohashi ,  Shuji Koyama ,  Kazuhiro Asai ,  Keiji Matsumoto ,  Tetsuro Honda ,  Masaki Ohsumi

IPC: B41J2/16

CPC classification number: B41J2/1631 ,  B41J2/1603 ,  B41J2/1629

Abstract: A process for producing an ejection orifice forming member including the steps of forming a laminate including a first negative photosensitive resin layer that contains a first photoacid generator, and a second negative photosensitive resin layer that is formed on the first negative photosensitive resin layer and contains a second photoacid generator; forming a first latent image and a second latent image on the first negative photosensitive resin layer and the second negative photosensitive resin layer, respectively, by collectively subjecting the first negative photosensitive resin layer and the second negative photosensitive resin layer to exposure; performing a heat treatment after the exposure; and forming the ejection orifice by a development treatment. The first photoacid generator in the first latent image has an acid diffusion length greater than the acid diffusion length of the second photoacid generator in the second latent image.

Abstract translation: 一种喷射孔形成部件的制造方法，包括以下步骤：形成包含第一感光性酸性发光体的第一负型感光性树脂层和形成在第一负型感光性树脂层上的第二负型感光性树脂层的层叠体， 第二光酸发生器; 通过共同对第一负感光性树脂层和第二负型感光性树脂层进行曝光，分别在第一负型感光性树脂层和第二负型感光性树脂层上形成第一潜像和第二潜像; 曝光后进行热处理; 并通过显影处理形成喷射孔。 第一潜像中的第一光致酸发生剂的酸扩散长度大于第二潜像中第二光致酸发生剂的酸扩散长度。

公开(公告)号：US10894409B2

公开(公告)日：2021-01-19

申请号：US16124511

申请日：2018-09-07

Applicant: CANON KABUSHIKI KAISHA

Inventor： Jun Yamamuro ,  Kazuhiro Asai ,  Keiji Matsumoto ,  Kunihito Uohashi ,  Keiji Watanabe ,  Masahisa Watanabe ,  Tetsushi Ishikawa ,  Yasuaki Tominaga ,  Manabu Otsuka

IPC: B41J2/16 ,  B41J2/14

Abstract: Provided is a method of manufacturing a liquid ejection head, which is capable of patterning a dry film while suppressing deformation of the dry film caused by a pressure. The method of manufacturing a liquid ejection head includes: preparing a substrate including an ejection orifice member on a first surface; forming, on an ejection orifice surface of the ejection orifice member, a protection film having communicating holes for allowing ejection orifices to communicate to outside; closing an opening of a supply port on a second surface on a side opposite to the first surface of the substrate with a dry film; and patterning the dry film by irradiating the dry film with light under a state in which the protection film is formed on the ejection orifice surface.

公开(公告)号：US20190077156A1

公开(公告)日：2019-03-14

申请号：US16124511

申请日：2018-09-07

Applicant: CANON KABUSHIKI KAISHA

Inventor： Jun Yamamuro ,  Kazuhiro Asai ,  Keiji Matsumoto ,  Kunihito Uohashi ,  Keiji Watanabe ,  Masahisa Watanabe ,  Tetsushi Ishikawa ,  Yasuaki Tominaga ,  Manabu Otsuka

IPC: B41J2/16

Abstract: Provided is a method of manufacturing a liquid ejection head, which is capable of patterning a dry film while suppressing deformation of the dry film caused by a pressure. The method of manufacturing a liquid ejection head includes: preparing a substrate including an ejection orifice member on a first surface; forming, on an ejection orifice surface of the ejection orifice member, a protection film having communicating holes for allowing ejection orifices to communicate to outside; closing an opening of a supply port on a second surface on a side opposite to the first surface of the substrate with a dry film; and patterning the dry film by irradiating the dry film with light under a state in which the protection film is formed on the ejection orifice surface.

公开(公告)号：US09873255B2

公开(公告)日：2018-01-23

申请号：US15079499

申请日：2016-03-24

Applicant: CANON KABUSHIKI KAISHA

Inventor： Koji Sasaki ,  Kenji Fujii ,  Jun Yamamuro ,  Kazuhiro Asai ,  Seiichiro Yaginuma ,  Keiji Matsumoto ,  Kunihito Uohashi ,  Masahisa Watanabe ,  Tomohiko Nakano ,  Keiji Edamatsu ,  Haruka Nakada

IPC: B41J2/16

CPC classification number: B41J2/162 ,  B41J2/1603 ,  B41J2/1631 ,  B41J2/1632 ,  B41J2/1639 ,  B41J2/1645

Abstract: A liquid ejection head includes a substrate having an energy generating element arranged therein and an ejection port forming member laid as superposed above the substrate. At least one ejection port is formed so as to run through the ejection port forming member. The ejection port forming member has a concave portion including the ejection port formed therein on the surface thereof opposite to the surface thereof facing the substrate, and has a convex portion on the surface of the ejection port forming member facing the substrate so as to correspond to the concave portion.

公开(公告)号：US20170297336A1

公开(公告)日：2017-10-19

申请号：US15489501

申请日：2017-04-17

Applicant: CANON KABUSHIKI KAISHA

Inventor： Jun Yamamuro ,  Kenji Fujii ,  Kazuhiro Asai ,  Keiji Matsumoto ,  Koji Sasaki ,  Kunihito Uohashi ,  Seiichiro Yaginuma ,  Masahisa Watanabe ,  Ryotaro Murakami ,  Tomohiko Nakano ,  Keiji Edamatsu ,  Haruka Nakada

IPC: B41J2/16

CPC classification number: B41J2/1607 ,  B41J2/1603 ,  B41J2/1623 ,  B41J2/1628 ,  B41J2/1631 ,  B41J2/1634 ,  B41J2/1639 ,  B41J2002/14459

Abstract: A method for manufacturing a liquid ejection head including the steps of preparing a substrate including, on a surface of the substrate, a layer having a plurality of openings in which opening portions of supply portions are located and which are arrayed in an array direction and another opening which is different from the plurality of openings and is located beyond the array end portion in the array direction, and attaching a dry film for forming flow passages to the substrate and the layer.