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公开(公告)号：US09050800B2
公开(公告)日：2015-06-09
申请号：US14019953
申请日：2013-09-06
发明人： Hiroshi Ito , Yasumi Ikehara , Jiro Kato , Hiroyuki Tomimatsu
CPC分类号： B41J2/14233 , B41J2/055 , B41J2/161 , B41J2/1623 , B41J2002/14241 , B41J2202/03
摘要： A liquid ejecting head comprises a pressure generation chamber communicating with a nozzle opening, a vibrating wall provided as one surface of the pressure generation chamber and vibrates so that ejects the liquid from the nozzle opening, and a resin portion having a recessed arc-shape and formed in a corner of the pressure generation chamber and formed of a resin material having a Young's modulus of less than or equal to 10 GPa. A ratio r/w of a radius r of the surface of the resin portion to a width w of the pressure generation chamber defined by the vibrating wall is greater than or equal to 0.017 and less than or equal to 0.087.
摘要翻译： 液体喷射头包括与喷嘴开口连通的压力产生室，设置在压力产生室的一个表面上的振动壁，并且振动，从而喷射来自喷嘴开口的液体，以及具有凹陷弧形的树脂部分和 形成在压力发生室的拐角处，并由杨氏模量小于或等于10GPa的树脂材料形成。 树脂部分的表面的半径r与由振动壁限定的压力产生室的宽度w的比r / w大于或等于0.017且小于或等于0.087。
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公开(公告)号：US08926070B2
公开(公告)日：2015-01-06
申请号：US14132677
申请日：2013-12-18
发明人： Toshihiro Shimizu , Hiroshi Ito , Jiro Kato , Eiju Hirai
CPC分类号： B41J2/14233 , B41J2/045 , B41J2/161 , B41J2/1623 , B41J2/1629 , B41J2/1631 , B41J2/1634 , B41J2/1642 , B41J2/1646 , B41J2002/14241 , B41J2002/14419 , B41J2002/14491 , H01L27/20 , H01L41/047 , H01L41/0475 , H01L41/0477 , H01L41/0973
摘要： There is provided a piezoelectric device comprising a first electrode, a piezoelectric layer that is formed above the first electrode, a second electrode that is formed above the piezoelectric layer and a coating layer that is formed above the second electrode consisting of tungsten or titanium.
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公开(公告)号：US11458728B2
公开(公告)日：2022-10-04
申请号：US17036319
申请日：2020-09-29
发明人： Hiromu Miyazawa , Kinya Ozawa , Jiro Kato
摘要： In a method of controlling a liquid ejecting apparatus, where the liquid ejecting apparatus includes a pressure chamber that communicates with a nozzle that ejects a liquid, a drive element that changes a pressure of the liquid in the pressure chamber, and a drive circuit that supplies the drive element with an ejection pulse that generates a change in the pressure that ejects the liquid from the nozzle, the method includes specifying a viscosity of the liquid in the nozzle and a surface tension of the liquid in the nozzle from a residual vibration when the pressure of the liquid in the pressure chamber is changed, and controlling a waveform of the ejection pulse according to the viscosity and the surface tension.
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公开(公告)号：US09272507B2
公开(公告)日：2016-03-01
申请号：US14268805
申请日：2014-05-02
发明人： Hiromu Miyazawa , Hiroshi Ito , Jiro Kato , Eiju Hirai , Toshihiro Shimizu
CPC分类号： B41J2/045 , B41J2/055 , B41J2/14233 , B41J2002/14241 , B41J2002/14419 , B41J2002/14491
摘要： A liquid ejecting head includes a flow channel forming substrate having pressure generation chambers communicating with a nozzle opening and arranged in parallel along a lateral direction. A piezoelectric element is provided on one surface of the flow channel forming substrate in correspondence to the pressure generation chamber, and has a first electrode, a piezoelectric layer provided on the first electrode and a second electrode provided on the piezoelectric layer. In a direction intersecting with the arrangement direction of the pressure generation chambers, in boundaries between an active section that is a substantial driving section and an inactive section that is not a substantial driving section of the piezoelectric layer, the first electrode includes a taper section of which a width is gradually decreased toward the boundary from the active section side.
摘要翻译： 液体喷射头包括具有压力产生室的流路形成基板，该压力产生室与喷嘴开口连通并且沿着横向方向平行布置。 压电元件设置在对应于压力产生室的流道形成基板的一个表面上，并且具有第一电极，设置在第一电极上的压电层和设置在压电层上的第二电极。 在与压力产生室的排列方向相交的方向上，在作为实质的驱动部分的有效部分和不是压电层的实质驱动部分的非活动部分之间的边界中，第一电极包括锥形部分 宽度从有效部分侧朝向边界逐渐减小。
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5.发明授权公开(公告)号：US09114613B2
公开(公告)日：2015-08-25
申请号：US14546595
申请日：2014-11-18
发明人： Toshihiro Shimizu , Hiroshi Ito , Jiro Kato , Eiju Hirai
CPC分类号： B41J2/14233 , B41J2/045 , B41J2/161 , B41J2/1623 , B41J2/1629 , B41J2/1631 , B41J2/1634 , B41J2/1642 , B41J2/1646 , B41J2002/14241 , B41J2002/14419 , B41J2002/14491 , H01L27/20 , H01L41/047 , H01L41/0475 , H01L41/0477 , H01L41/0973
摘要： There is provided a piezoelectric device comprising a first electrode, a piezoelectric layer that is formed above the first electrode, a second electrode that is formed above the piezoelectric layer and a coating layer that is formed above the second electrode consisting of tungsten or titanium.
摘要翻译： 提供了一种压电装置，其包括第一电极，形成在第一电极上方的压电层，形成在压电层上方的第二电极和形成在由钨或钛构成的第二电极上方的涂层。
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公开(公告)号：US20140002550A1
公开(公告)日：2014-01-02
申请号：US14019953
申请日：2013-09-06
发明人： Hiroshi ITO , Yasumi Ikehara , Jiro Kato , Hiroyuki Tomimatsu
IPC分类号： B41J2/14
CPC分类号： B41J2/14233 , B41J2/055 , B41J2/161 , B41J2/1623 , B41J2002/14241 , B41J2202/03
摘要： A liquid ejecting head comprises a pressure generation chamber communicating with a nozzle opening, a vibrating wall provided as one surface of the pressure generation chamber and vibrates so that ejects the liquid from the nozzle opening, and a resin portion having a recessed arc-shape and formed in a corner of the pressure generation chamber and formed of a resin material having a Young's modulus of less than or equal to 10 GPa. A ratio r/w of a radius r of the surface of the resin portion to a width w of the pressure generation chamber defined by the vibrating wall is greater than or equal to 0.017 and less than or equal to 0.087.
摘要翻译： 液体喷射头包括与喷嘴开口连通的压力产生室，设置在压力产生室的一个表面上的振动壁，并且振动，从而喷射来自喷嘴开口的液体，以及具有凹陷弧形的树脂部分和 形成在压力发生室的拐角处，并由杨氏模量小于或等于10GPa的树脂材料形成。 树脂部分的表面的半径r与由振动壁限定的压力产生室的宽度w的比r / w大于或等于0.017且小于或等于0.087。
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公开(公告)号：US11731421B2
公开(公告)日：2023-08-22
申请号：US17810933
申请日：2022-07-06
发明人： Hiromu Miyazawa , Kinya Ozawa , Jiro Kato
摘要： In a method of controlling a liquid ejecting apparatus, where the liquid ejecting apparatus includes a pressure chamber that communicates with a nozzle that ejects a liquid, a drive element that changes a pressure of the liquid in the pressure chamber, and a drive circuit that supplies the drive element with an ejection pulse that generates a change in the pressure that ejects the liquid from the nozzle, the method includes specifying a viscosity of the liquid in the nozzle and a surface tension of the liquid in the nozzle from a residual vibration when the pressure of the liquid in the pressure chamber is changed, and controlling a waveform of the ejection pulse according to the viscosity and the surface tension.
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公开(公告)号：US10059101B2
公开(公告)日：2018-08-28
申请号：US15296404
申请日：2016-10-18
发明人： Eiju Hirai , Shiro Yazaki , Koji Sumi , Motoki Takabe , Jiro Kato , Hiroshi Ito , Toshihiro Shimizu , Takahiro Kamijo , Tatsuro Torimoto , Chikara Kojima
IPC分类号： B41J2/14 , B41J2/045 , B41J2/16 , H01L41/08 , H01L41/047
CPC分类号： B41J2/14233 , B41J2/045 , B41J2/14201 , B41J2/14274 , B41J2/161 , B41J2/1626 , B41J2/1631 , B41J2/1646 , B41J2002/14258 , B41J2002/14491 , H01L41/0471 , H01L41/0805
摘要： A liquid ejection head includes a substrate in which a pressure generating chamber that communicates with a nozzle opening is formed; and a piezoelectric element having a piezoelectric layer, a first electrode that is formed on a surface of the piezoelectric layer on a side of the substrate so as to correspond to the pressure generating chamber, and a second electrode that is formed on a surface of the piezoelectric layer opposite to the side on which the first electrode is formed so as to extend over a plurality of the pressure generating chambers, wherein the second electrode is formed to extend to an outside of the pressure generating chamber in a longitudinal direction of the pressure generating chamber.
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公开(公告)号：US09144977B2
公开(公告)日：2015-09-29
申请号：US14565942
申请日：2014-12-10
发明人： Eiju Hirai , Shiro Yazaki , Koji Sumi , Motoki Takabe , Jiro Kato , Hiroshi Ito , Toshihiro Shimizu , Takahiro Kamijo , Tatsuro Torimoto , Chikara Kojima
CPC分类号： B41J2/14233 , B41J2/045 , B41J2/14201 , B41J2/14274 , B41J2/161 , B41J2/1626 , B41J2/1631 , B41J2/1646 , B41J2002/14258 , B41J2002/14491 , H01L41/0471 , H01L41/0805
摘要： A liquid ejection head includes a substrate in which a pressure generating chamber that communicates with a nozzle opening is formed; and a piezoelectric element having a piezoelectric layer, a first electrode that is formed on a surface of the piezoelectric layer on a side of the substrate so as to correspond to the pressure generating chamber, and a second electrode that is formed on a surface of the piezoelectric layer opposite to the side on which the first electrode is formed so as to extend over a plurality of the pressure generating chambers, wherein the second electrode is formed to extend to an outside of the pressure generating chamber in a longitudinal direction of the pressure generating chamber.
摘要翻译： 液体喷射头包括形成有与喷嘴开口连通的压力发生室的基板; 以及压电元件，其具有压电层，第一电极，其形成在所述基板的一侧的所述压电层的表面上，以对应于所述压力产生室;以及第二电极，形成在所述压电层的表面上 压电层，其与形成有第一电极的一侧相对，以便在多个压力发生室上延伸，其中第二电极形成为在压力产生的纵向方向上延伸到压力发生室的外部 房间。
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公开(公告)号：US08998389B2
公开(公告)日：2015-04-07
申请号：US14019953
申请日：2013-09-06
发明人： Hiroshi Ito , Yasumi Ikehara , Jiro Kato , Hiroyuki Tomimatsu
摘要： A liquid ejecting head comprises a pressure generation chamber communicating with a nozzle opening, a vibrating wall provided as one surface of the pressure generation chamber and vibrates so that ejects the liquid from the nozzle opening, and a resin portion having a recessed arc-shape and formed in a corner of the pressure generation chamber and formed of a resin material having a Young's modulus of less than or equal to 10 GPa. A ratio r/w of a radius r of the surface of the resin portion to a width w of the pressure generation chamber defined by the vibrating wall is greater than or equal to 0.017 and less than or equal to 0.087.
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