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公开(公告)号：US20130342614A1
公开(公告)日：2013-12-26
申请号：US13916696
申请日：2013-06-13
Applicant: Canon Kabushiki Kaisha
Inventor： Yohei Nakamura , Toru Nakakubo , Ryota Kashu
IPC: B41J2/14
CPC classification number: B41J2/14274 , B41J2/1609 , B41J2/1623 , B41J2/1626 , B41J2/1631 , B41J2/1632 , B41J2/1634 , B41J2/1642 , B41J2/1643 , B41J2/1645 , B41J2/1646
Abstract: A liquid ejection head includes multiple tubular pressure chambers and a stacked body having first substrates and second substrates stacked alternately, in which the first substrates each have multiple first grooves and multiple second grooves formed therein, and the second substrates each has multiple third grooves formed therein, in which, in the multiple first grooves of each of the first substrates, inner surface electrodes are formed, in which counter electrodes are formed in a face of each of the second substrates, and in which a width W1 of each of the inner surface electrodes, a width W2 of each of the counter electrodes, and a width WP of each of the multiple first grooves satisfy a relation of WP
Abstract translation: 液体喷射头包括多个管状压力室和具有交替堆叠的第一基板和第二基板的堆叠体，其中第一基板各自具有多个第一凹槽和多个第二凹槽，并且第二基板各自具有形成在其中的多个第三凹槽 其中，在每个第一基板的多个第一凹槽中形成内表面电极，其中在每个第二基板的表面上形成有相对电极，并且其中每个的内表面的宽度W1 电极，每个相对电极的宽度W2和多个第一凹槽中的每一个的宽度WP满足WP
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公开(公告)号：US20130162725A1
公开(公告)日：2013-06-27
申请号：US13714679
申请日：2012-12-14
Applicant: CANON KABUSHIKI KAISHA
Inventor： Toshio Suzuki , Shinan Wang , Toru Nakakubo , Manabu Sueoka , Tsunenori Soma , Ryota Kashu
IPC: B41J2/14
CPC classification number: B41J2/14201 , B41J2/14209 , B41J2002/14491 , B41J2202/12 , B41J2202/19
Abstract: A liquid ejection head includes a piezoelectric block body having a plurality of pressure chambers arranged two-dimensionally to face respective ejection ports, a plurality of air chambers arranged adjacently relative to the plurality of pressure chambers, and a plurality of flow channels arranged along the pressure chambers. The pressure chambers are deformed by expansion and contraction of piezoelectric members disposed between the pressure chambers and the air chambers so as to drive the liquid stored therein to flow toward the ejection ports. A connection flow channel is provided at the ejection port side of the piezoelectric block body sp as to make each of the pressure chambers communicate with at least one of the flow channels for partial recirculation of the ink.
Abstract translation: 液体喷射头包括：压电块体，其具有二维布置以面对各自的喷射口的多个压力室;相对于多个压力室相邻布置的多个气室;以及沿压力布置的多个流动通道 房间。 压力室通过设置在压力室和空气室之间的压电元件的膨胀和收缩而变形，从而驱动储存在其中的液体流向喷射口。 连接流动通道设置在压电块体sp的喷射口侧，以使得每个压力室与至少一个用于油墨的部分再循环的流动通道连通。
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公开(公告)号：US20240367441A1
公开(公告)日：2024-11-07
申请号：US18775428
申请日：2024-07-17
Applicant: CANON KABUSHIKI KAISHA
Inventor： Kazuhiro Yamada , Toru Nakakubo , Yoshiyuki Nakagawa , Shingo Okushima
Abstract: A liquid ejecting head has a laminated flow path member on which a supply flow path for individually supplying a plurality of liquids to an element substrate and a collection flow path for individually collecting the liquids are formed. The supply flow path includes first and second common supply flow paths for horizontally leading first and second liquids to positions corresponding to a plurality of element substrates. The first and second common supply flow paths are formed in the same layer of the laminated flow path member. The collection flow path includes a first common collection flow path for horizontally collecting the first liquid and a second common collection flow path for horizontally collecting the second liquid from positions corresponding to the plurality of element substrates. The first and second common collection flow paths are formed in the same layer of the laminated flow path member.
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公开(公告)号：US11607882B2
公开(公告)日：2023-03-21
申请号：US17380246
申请日：2021-07-20
Applicant: CANON KABUSHIKI KAISHA
Inventor： Toru Nakakubo , Akihisa Iio , Rei Kurashima , Takahiro Akiyama , Hiroyuki Ozaki
IPC: B41J2/14
Abstract: A liquid ejection module includes a pressure chamber, a supply flow channel that supplies a liquid to the pressure chamber, a collection flow channel that collects the liquid from the pressure chamber, a liquid feeding chamber connected to one of the supply flow channel and the collection flow channel, and a connection flow channel connecting the liquid feeding chamber to the other of the supply flow channel and the collection flow channel. The liquid feeding chamber includes a liquid feeding mechanism that circulates the liquid in the supply flow channel, the pressure chamber, the collection flow channel, the liquid feeding chamber, and the connection flow channel. A ratio of a sum of flow channel resistance of the supply flow channel, the pressure chamber, and the collection flow channel relative to flow channel resistance of the connection flow channel is equal to or above 0.5.
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公开(公告)号：US11465415B2
公开(公告)日：2022-10-11
申请号：US17348633
申请日：2021-06-15
Applicant: CANON KABUSHIKI KAISHA
Inventor： Rei Kurashima , Hiroyuki Ozaki , Toru Nakakubo
Abstract: In a case where air bubbles exist in ink at the time of circulating the ink within a liquid ejection module, the amount circulating ink runs short and stability of ejection is blocked. The liquid ejection module has: a pressure chamber that communicates with an ejection port and which stores a liquid; an energy generation element that produces energy for causing a liquid to be ejected from the ejection port; a supply flow path that supplies a liquid to the pressure chamber; a collecting channel that collects a liquid from the pressure chamber; a liquid sending chamber that connects to the collecting channel; a connection flow path that connects the liquid sending chamber and the supply flow path; and a liquid sending unit configured to circulate a liquid, and the liquid sending chamber has a continuously inclined structure.
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Patent Agency Ranking
公开(公告)号：US11433667B2
公开(公告)日：2022-09-06
申请号：US16844632
申请日：2020-04-09
Applicant: CANON KABUSHIKI KAISHA
Inventor： Tomohiro Takahashi , Toru Nakakubo , Akio Saito , Takeyori Sato , Katsumi Eda , Takeshi Shibata
IPC: B41J2/14 , B41J2/16 , H05K1/03 , H01L21/02 , H01L21/683
Abstract: A recording element substrate is bonded to an FPC in at least a part of a region of a second face between a liquid supply port and an edge of the recording element substrate, and an electric connection part is provided in which a wiring conductor and a pad are electrically connected to each other by a bonding wire.
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公开(公告)号：US11179932B2
公开(公告)日：2021-11-23
申请号：US16673286
申请日：2019-11-04
Applicant: CANON KABUSHIKI KAISHA
Inventor： Akio Saito , Toru Nakakubo , Yohei Nakamura , Zentaro Tamenaga
Abstract: A liquid ejection head including a recording element substrate that ejects a liquid, a flow passage member provided with a flow passage that supplies the liquid to the recording element substrate, an elastic member having elasticity disposed between the recording element substrate and the flow passage member, and a fixing member that fixes the recording element substrate and the flow passage member. In the liquid ejection head, an area between the recording element substrate and the flow passage member through which the liquid flows is sealed by having the elastic member be deformed with the fixing member.
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公开(公告)号：US11097536B2
公开(公告)日：2021-08-24
申请号：US16727541
申请日：2019-12-26
Applicant: CANON KABUSHIKI KAISHA
Inventor： Rei Kurashima , Akihisa Iio , Takahiro Akiyama , Toru Nakakubo , Noriyuki Kaifu
Abstract: A driving method enables a liquid feeding apparatus using a driving element in a membrane shape to feed a liquid at high liquid feeding accuracy. To this end, a voltage applied to the driving element is controlled in such a way as to repeat a first period in which a first voltage is applied and a second period which is a longer period than the first period and used to effect a change between the first voltage and a second voltage lower than the first voltage, and in such a way as to switch between application and non-application of the first voltage during the first period.
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公开(公告)号：US10906304B2
公开(公告)日：2021-02-02
申请号：US16452336
申请日：2019-06-25
Applicant: CANON KABUSHIKI KAISHA
Inventor： Masaya Uyama , Takuya Hatsui , Souta Takeuchi , Masataka Kato , Toru Nakakubo , Tomohiro Takahashi
Abstract: A semiconductor element includes an insulation layer and a pad portion for electrical connection to an external portion by wire bonding. The insulation layer includes a plurality of projections projecting from a main surface of the insulation layer. The pad portion is disposed on an upper surface of each of the projections without extending beyond the upper surface of the projection on which the pad portion is formed.
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公开(公告)号：US20200207082A1
公开(公告)日：2020-07-02
申请号：US16727541
申请日：2019-12-26
Applicant: CANON KABUSHIKI KAISHA
Inventor： Rei Kurashima , Akihisa Iio , Takahiro Akiyama , Toru Nakakubo , Noriyuki Kaifu
Abstract: A driving method is provided which enables a liquid feeding apparatus using a driving element in a membrane shape to feed a liquid at high liquid feeding accuracy. To this end, a voltage applied to the driving element is controlled in such a way as to repeat a first period in which a first voltage is applied and a second period which is a longer period than the first period and used to effect a change between the first voltage and a second voltage lower than the first voltage, and in such a way as to switch between application and non-application of the first voltage during the first period.
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