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公开(公告)号：US20240326425A1
公开(公告)日：2024-10-03
申请号：US18611002
申请日：2024-03-20
发明人： Itsuki MORIMOTO , Yuki KAWAMURA
IPC分类号： B41J2/14
CPC分类号： B41J2/14233 , B41J2002/14266 , B41J2202/16
摘要： A head module includes: a head chip having an actuator, a channel member having a channel deformable by the actuator, and a support made of metal and supporting the channel member, a heater assembly; and a heat conductor. The heat conductor has a first contacting part in thermal contact with the support, and a second contacting part in thermal contact with the heater assembly and the actuator.
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公开(公告)号：US12059895B2
公开(公告)日：2024-08-13
申请号：US17588773
申请日：2022-01-31
发明人： Toru Kakiuchi
CPC分类号： B41J2/04588 , B41J2/04581 , B41J2/04591 , B41J2/14233 , B41J2002/14266
摘要： A liquid discharging head includes a channel member which has a plurality of individual channels, each of the plurality of individual channels having a pressure chamber communicating with a nozzle, and a piezoelectric actuator which is configured to make the liquid discharge from the nozzle by causing a change in a pressure on a liquid inside the pressure chamber. The piezoelectric actuator has a thin-film piezoelectric element, and when a Helmholtz natural frequency of the pressure chamber is let to be Fr (kHz) and a diameter of the nozzle is let to be D (μm), a relationship
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公开(公告)号：US11865838B2
公开(公告)日：2024-01-09
申请号：US17452605
申请日：2021-10-28
发明人： Motoki Takabe , Yasuhiro Itayama
CPC分类号： B41J2/14233 , B41J2/161 , B41J2002/14258 , B41J2002/14266
摘要： A piezoelectric body layer of a first area has (100) plane preferential orientation, and a (100) plane orientation ratio of the piezoelectric body layer of a second area is lower than a (100) plane orientation ratio of the piezoelectric body layer of the first area, when one area far from an end portion of a second electrode is the first area, and one area near the end portion of the second electrode is the second area, of two areas of the second electrode in a second direction intersecting a first direction.
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公开(公告)号：US20230302796A1
公开(公告)日：2023-09-28
申请号：US18125220
申请日：2023-03-23
CPC分类号： B41J2/14233 , B41J2/161 , B41J2002/14266 , B41J2002/14241 , B41J2002/14306
摘要： A liquid ejection head includes a plurality of nozzles arranged along a first direction of an ejection surface, a plurality of pressure chambers communicating with the plurality of individual nozzles and provided with actuators configured to apply, to a liquid, pressures for ejecting the liquid from the nozzles, a plurality of discrete flow paths communicating with the plurality of individual pressure chambers, a common flow path communicating with the plurality of individual discrete flow paths via discrete opening portions and extending in the first direction, and a damper mechanism disposed to face the common flow path in a direction crossing the ejection surface to absorb a pressure fluctuation in the liquid in the common flow path. The common flow path is provided with a partition wall disposed between the discrete opening portions adjacent in the first direction to extend in the direction crossing the ejection surface.
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公开(公告)号：US11711981B2
公开(公告)日：2023-07-25
申请号：US17218363
申请日：2021-03-31
发明人： Hiroto Sugahara , Kazuo Kobayashi
CPC分类号： H10N30/875 , B41J2/045 , B41J2/14233 , B41J2/161 , B41J2/164 , B41J2/1623 , B41J2/1642 , B41J2/1643 , B41J2/1646 , H10N30/074 , H10N30/20 , H10N30/2047 , B41J2002/14266 , B41J2002/14491 , Y10T29/42 , Y10T29/49147 , Y10T29/49155
摘要： A piezoelectric actuator is disclosed that may include a insulating layer, individual electrodes, a common electrode, and a piezoelectric layer. The common electrode may include divisional electrodes that are connected with one another. The individual electrodes may be disposed between the insulating layer and the piezoelectric layer while the piezoelectric layer may be disposed between the individual electrodes and the common electrode. Further, the divisional electrodes may be configured to face the individual electrodes.
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公开(公告)号：US20190193398A1
公开(公告)日：2019-06-27
申请号：US16293782
申请日：2019-03-06
发明人： Kazunari MATSUURA , Keita HIRAI
CPC分类号： B41J2/1404 , B41J2/14072 , B41J2/14201 , B41J2/14233 , B41J2/15 , B41J2/175 , B41J2/17596 , B41J2002/14266 , B41J2002/14459 , B41J2202/12
摘要： A liquid jetting head includes: a channel substrate having a nozzle surface in which nozzles are open, the channel substrate being formed with pressure chambers communicating with the nozzles respectively; and an actuator covering the pressure chambers. The pressure chambers include first pressure chambers arranged in an arrangement direction to form a first pressure chamber row. The nozzles include first nozzles communicating with the pressure chambers respectively. Any two first nozzles that are adjacent in the arrangement direction are arranged at different positions in the channel substrate with respect to an orthogonal direction which is parallel to the nozzle surface and orthogonal to the arrangement direction and different in a first distance. The first distance is a distance in the orthogonal direction between each first nozzle and an end on one side in the orthogonal direction of the first pressure chamber communicating with the first nozzle.
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公开(公告)号：US20190016131A1
公开(公告)日：2019-01-17
申请号：US16031150
申请日：2018-07-10
发明人： Kenichiro MATSUO
CPC分类号： B41J2/055 , B41J2/14233 , B41J2/175 , B41J2002/14241 , B41J2002/14266 , B41J2002/14362 , B41J2002/14419
摘要： A compliance plate includes a flexible film that forms a portion of a wall surface of a liquid storage chamber that is supplied with a liquid that is to be discharged from a nozzle, a support plate that supports the flexible film at an opposite side of the flexible film to the liquid storage chamber and that has an opening portion that exposes the flexible film, and a plurality of regions that include a first region and a second region that have a compliance function, the first region and the second region having mutually different characteristic vibration periods.
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公开(公告)号：US20180264815A1
公开(公告)日：2018-09-20
申请号：US15881850
申请日：2018-01-29
发明人： Keiji KURA
IPC分类号： B41J2/14 , H01L41/047 , H01L41/09
CPC分类号： H01L41/0471 , B41J2/14233 , B41J2002/14258 , B41J2002/14266 , B41J2002/14459 , B41J2002/14491 , B41J2202/18 , H01L41/0973
摘要： A piezoelectric actuator includes a first piezoelectric layer, a second piezoelectric layer, individual electrodes, a first conductor and an auxiliary electrode. The first piezoelectric layer and the second piezoelectric layer are joined to each other at a surface of the first piezoelectric layer. The individual electrodes are disposed on the first piezoelectric layer. The first conductor is spaced apart from the individual electrodes in a direction orthogonal to the surface of the first piezoelectric layer. The first conductor includes electrode portions and a connecting portion. The electrode portions each overlap a first portion of a corresponding one of the individual electrodes. The connecting portion connects at least two of the electrode portions to each other. The auxiliary electrode is connected to the connecting portion, overlaps the connecting portion, and is spaced apart from the first conductor in the direction.
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公开(公告)号：US20180264812A1
公开(公告)日：2018-09-20
申请号：US15912753
申请日：2018-03-06
发明人： Kazunari MATSUURA , Keita HIRAI
CPC分类号： B41J2/1404 , B41J2/14072 , B41J2/14201 , B41J2/14233 , B41J2/15 , B41J2/175 , B41J2/17596 , B41J2002/14266 , B41J2002/14459 , B41J2202/12
摘要： A liquid jetting head includes: a channel substrate having a nozzle surface in which nozzles are open, the channel substrate being formed with pressure chambers communicating with the nozzles respectively; and an actuator covering the pressure chambers. The pressure chambers include first pressure chambers arranged in an arrangement direction to form a first pressure chamber row. The nozzles include first nozzles communicating with the pressure chambers respectively. Any two first nozzles that are adjacent in the arrangement direction are arranged at different positions in the channel substrate with respect to an orthogonal direction which is parallel to the nozzle surface and orthogonal to the arrangement direction and different in a first distance. The first distance is a distance in the orthogonal direction between each first nozzle and an end on one side in the orthogonal direction of the first pressure chamber communicating with the first nozzle.
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公开(公告)号：US20170297335A1
公开(公告)日：2017-10-19
申请号：US15375917
申请日：2016-12-12
发明人： Yoshikazu TAKAHASHI
IPC分类号： B41J2/14 , H01L41/047 , H01L41/09
CPC分类号： C08G63/08 , B41J2/14233 , B41J2002/14225 , B41J2002/14266 , B41J2002/14491 , H01L41/047 , H01L41/0475 , H01L41/0973
摘要： A piezoelectric actuator is provided, including a vibration plate, a piezoelectric layer, a plurality of individual electrodes arranged in two arrays, first and second common electrodes which have first and second facing portions facing parts of the individual electrodes and first and second connecting portions connecting the first and second facing portions respectively, and first and second wiring portions which are arranged on the vibration plate and which are connected to the first and second common electrodes respectively via first and second connecting wirings, wherein one of the first connecting wirings connects the first connecting portion and one of the first wiring portion while striding over the second connecting portion.
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