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1. 发明申请

US20220016886A1 LIQUID EJECTION HEAD AND METHOD FOR MANUFACTURING LIQUID EJECTION HEAD 有权
公开(公告)号：US20220016886A1
公开(公告)日：2022-01-20
申请号：US17367793
申请日：2021-07-06
申请人： CANON KABUSHIKI KAISHA
发明人： Yuzuru Ishida , Yoshinori Misumi , Maki Kato , Takeru Yasuda , Tsubasa Funabashi
IPC分类号： B41J2/14 , B41J2/16
摘要： A liquid ejection head includes a liquid ejection head substrate having ejection elements that generate liquid ejecting energy, an ejection port formation member having ejection ports, and liquid chambers between the liquid ejection head substrate and the ejection port formation member to house liquid to be ejected through the ejection ports. The liquid ejection head substrate includes a substrate, an insulating film stacked on the substrate to insulate the ejection elements, communication ports in the substrate and the insulating film to communicate with the liquid chambers, and a liquid-resistant insulating film adherent to the ejection port formation member. The liquid-resistant insulating film covers the insulating film at its ejection port formation member side and includes a first portion partially contacting the ejection port formation member and a second portion covering the inner surfaces of the communication ports in the insulating film, the first and second portions being continuous.

2. 发明授权

US11173713B2 Liquid discharge head 有权
公开(公告)号：US11173713B2
公开(公告)日：2021-11-16
申请号：US16828733
申请日：2020-03-24
申请人： CANON KABUSHIKI KAISHA
发明人： Tomohiro Sato , Koichi Ishida , Masaki Oikawa , Yoshinori Misumi , Maki Kato , Yuzuru Ishida , Tsubasa Funabashi
IPC分类号： B41J2/14 , B41J2/175 , B41J2/155
摘要： A liquid discharge head includes a flow passage forming member, an element substrate including a liquid discharge element and a surface on which a conductive member made from a metallic material is disposed, and an intermediate layer made from a resin material and configured to join the flow passage forming member and the surface of the element substrate to each other. The intermediate layer is disposed in a state, separated from the conductive member, where the conductive member is exposed from the intermediate layer. The conductive member is covered with the flow passage forming member.

3. 发明授权

US10994532B2 Liquid discharge apparatus and control method thereof 有权
公开(公告)号：US10994532B2
公开(公告)日：2021-05-04
申请号：US16570361
申请日：2019-09-13
申请人： CANON KABUSHIKI KAISHA
发明人： Yuzuru Ishida , Maki Kato , Yoshinori Misumi , Nobuyuki Hirayama
IPC分类号： B41J2/14 , B41J2/045
摘要： A liquid discharge apparatus includes a plurality of anti-cavitation layers formed to cover heat generating elements at positions where the anti-cavitation layers contact the liquid, a monitoring unit that detects a current flowing through the anti-cavitation layers, and a plurality of switching units that switch whether to apply, to the heat generating elements, a voltage for driving the heat generating elements. If the monitoring unit detects that a current greater than a predetermined value has flowed through one of the anti-cavitation layers while the voltage is applied to the heat generating elements, a control unit sequentially switches the plurality of switching units, and specifies the heat generating element corresponding to the anti-cavitation layer through which the current has flowed, among the heat generating elements.

4. 发明申请

US20210016563A1 CLEANING METHOD OF LIQUID DISCHARGE HEAD AND LIQUID DISCHARGE APPARATUS 有权
公开(公告)号：US20210016563A1
公开(公告)日：2021-01-21
申请号：US16924031
申请日：2020-07-08
申请人： CANON KABUSHIKI KAISHA
发明人： Yoshinori Misumi , Maki Kato , Yuzuru Ishida , Tsubasa Funabashi , Takahiro Matsui
IPC分类号： B41J2/045 , B41J2/165
摘要： A method of cleaning a liquid discharge head includes first eluting a first electrode and second eluting a second electrode. In the cleaning method, the first eluting and the second eluting are executed such that a ratio between a first electric power amount used in the first eluting and a second electric power amount used in the second eluting is a ratio based on a ratio between an area of a first face of the first electrode and an area of a second face of the second electrode.

5. 发明授权

US10538085B2 Liquid discharge head substrate, liquid discharge head, and method for disconnecting fuse portion in liquid discharge head substrate 有权
公开(公告)号：US10538085B2
公开(公告)日：2020-01-21
申请号：US16132797
申请日：2018-09-17
申请人： CANON KABUSHIKI KAISHA
发明人： Yoshinori Misumi , Yuzuru Ishida , Maki Kato , Takahiro Matsui
IPC分类号： B41J2/14 , B41J2/05
摘要： Influence of transform of quality to an entire liquid discharge head is suppressed when a heat resistor and a covering portion are electrically connected to each other. To address this problem, a liquid discharge head substrate includes fuse portions for respective heat resistor arrays.

6. 发明申请

US20190329549A1 LIQUID EJECTION HEAD SUBSTRATE, METHOD OF MANUFACTURING LIQUID EJECTION HEAD SUBSTRATE, AND LIQUID EJECTION HEAD 审中-公开
公开(公告)号：US20190329549A1
公开(公告)日：2019-10-31
申请号：US16383449
申请日：2019-04-12
申请人： CANON KABUSHIKI KAISHA
发明人： Yuzuru Ishida , Maki Kato , Yoshinori Misumi , Tsubasa Funabashi , Takahiro Matsui
IPC分类号： B41J2/14 , B41J2/16
摘要： A liquid ejection head substrate including a base including a surface having a first and second heat generation elements, a conductive first covering portion, a conductive second covering portion, an insulating layer disposed between the first heat generation element and the first covering portion, and between the second heat generation element and the second covering portion, a fuse portion, first wiring electrically connected to the first covering portion through the fuse portion, the first wiring electrically connecting the first covering portion to the second covering portion, a terminal electrically connected to the first covering portion and the second covering portion through the first wiring, second wiring, and electric connection portions provided between the fuse portion and the terminal in a current path passing through the first wiring, the electric connection portions parallelly connecting the first and second wiring to each other.

7. 发明申请

US20190255848A1 LIQUID DISCHARGE HEAD SUBSTRATE AND LIQUID DISCHARGE HEAD 审中-公开
公开(公告)号：US20190255848A1
公开(公告)日：2019-08-22
申请号：US16271176
申请日：2019-02-08
申请人： CANON KABUSHIKI KAISHA
发明人： Maki Kato , Yoshinori Misumi , Yuzuru Ishida , Tsubasa Funabashi , Takahiro Matsui
IPC分类号： B41J2/14
摘要： The liquid discharge head substrate includes a first covering portion that covers the first heat generation element and that has conductivity, a second covering portion that covers the second heat generation element and that has conductivity, an insulative layer disposed between the first heat generation element and the first covering portion and between the second heat generation element and the second covering portion, a fuse portion provided on the substrate on a side on which the first covering portion is provided, common wiring for electrically coupling the first covering portion and the second covering portion, the common wiring coupled with the first covering portion via the fuse portion, and a cover layer including at least silicon and carbon and covering the fuse portion.

8. 发明授权

US09868283B2 Liquid discharge head cleaning method and liquid discharge apparatus 有权
公开(公告)号：US09868283B2
公开(公告)日：2018-01-16
申请号：US15253432
申请日：2016-08-31
申请人： CANON KABUSHIKI KAISHA
发明人： Yoshinori Misumi , Maki Kato , Yuzuru Ishida , Akio Goto , Norihiro Yoshinari , Takahiro Matsui , Ichiro Saito
IPC分类号： B41J2/14 , B41J2/165 , B41J2/17
CPC分类号： B41J2/14072 , B41J2/16505 , B41J2/16517 , B41J2/16526 , B41J2/1707 , B41J2/1714
摘要： A method of cleaning a liquid discharge head, which includes a heat generating resistor that generates thermal energy for discharging a liquid and a covering portion covering the heat generating resistor, includes alternately performing a first voltage application process and a second voltage application process multiple times, and reducing energy applied in the second voltage application process. The first voltage application process includes applying voltage between the covering portion and an electrode through the liquid to dissolve the covering portion in the liquid. The second voltage application process includes reversing relative polarities of the covering portion and the electrode in the first voltage application process and applying voltage between the covering portion and the electrode. Energy applied in the second voltage application process is reduced such that the energy applied is less than energy applied in the first voltage application process of an immediately preceding time.

9. 发明授权

US09266331B2 Manufacturing method of substrate for liquid ejection head 有权
标题翻译：液体喷射头基板的制造方法
公开(公告)号：US09266331B2
公开(公告)日：2016-02-23
申请号：US13926651
申请日：2013-06-25
申请人： CANON KABUSHIKI KAISHA
发明人： Sadayoshi Sakuma , Hirokazu Komuro , Yuzuru Ishida , Kazuaki Shibata , Makoto Sakurai
IPC分类号： B21D53/76 , B41J2/16 , B41J2/14
CPC分类号： B41J2/1637 , B41J2/14129 , B41J2/1603 , B41J2/1628 , B41J2/1629 , B41J2/1631 , B41J2/1632 , B41J2/1635 , B41J2/1639 , B41J2/1642 , B41J2/1643 , B41J2/1645 , B41J2/1646 , Y10T29/49002 , Y10T29/49401
摘要： Provided is a method for manufacturing a substrate for liquid ejection head including an ejection energy generating element and a nozzle layer including an ejection port and a liquid channel. The method includes the steps of: forming, on the substrate including the element, a metal mold member made of metal and having a flat surface, the metal mold member making up at least a part of a mold for the liquid channel, and a planarization layer made of the metal and having a flat surface to planarize a surface of the nozzle layer; coating the mold for the liquid channel and the planarization layer with negative-type photosensitive resin, thus forming a negative-type photosensitive resin layer to be the nozzle layer; exposing the resin layer to ultraviolet rays, thus forming the ejection port; and selectively removing the mold for the liquid channel, thus forming the liquid channel.
摘要翻译：本发明提供一种液体喷射头用基板的制造方法，其特征在于，具有喷射能量产生元件和喷出口以及液体通道的喷嘴层。该方法包括以下步骤：在包括元件的基板上形成由金属制成并具有平坦表面的金属模具构件，所述金属模具构件构成用于液体通道的模具的至少一部分，以及平坦化由金属制成并具有平坦表面以使喷嘴层的表面平坦化的层; 用负型感光树脂涂布液体通道的模具和平坦化层，从而形成作为喷嘴层的负型感光性树脂层; 将树脂层暴露于紫外线，从而形成喷出口; 并选择性地去除用于液体通道的模具，从而形成液体通道。

10. 发明授权

US09096059B2 Substrate for inkjet head, inkjet head, and inkjet printing apparatus 有权
标题翻译：喷墨头，喷墨头和喷墨印刷装置用基板
公开(公告)号：US09096059B2
公开(公告)日：2015-08-04
申请号：US14138287
申请日：2013-12-23
申请人： CANON KABUSHIKI KAISHA
发明人： Takuya Hatsui , Yuzuru Ishida , Kazuaki Shibata , Takeru Yasuda
IPC分类号： B41J2/05 , B41J2/14
CPC分类号： B41J2/14129 , B41J2/14112
摘要： There are provided a substrate for an inkjet head, an inkjet head, and an inkjet printing apparatus wherein in a case where current is carried through a protection layer for heating resistors, electrical connection to its periphery is prevented without fail. The substrate for the inkjet head includes a first protection layer disposed to cover a heating resistor layer and having an insulation property and a second protection layer disposed to contact the first protection layer and having conductivity. The second protection layer includes a plurality of individual sections provided to correspond to the plurality of heating resistors, a common section connecting the plurality of individual sections, and fuse sections connecting the individual sections and the common section, the fuse sections being formed to be thinner than the individual sections.
摘要翻译：提供了一种用于喷墨头，喷墨头和喷墨打印设备的基板，其中在通过用于加热电阻器的保护层传送电流的情况下，防止与其周边的电连接。用于喷墨头的基片包括设置成覆盖加热电阻层并具有绝缘性能的第一保护层和设置成接触第一保护层并具有导电性的第二保护层。所述第二保护层包括多个单独部分，其设置成对应于所述多个加热电阻器，连接所述多个单独部分的公共部分以及连接所述各个部分和所述公共部分的熔断部分，所述熔断部分形成为更薄比各个部分。

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