公开(公告)号：US08752938B2

公开(公告)日：2014-06-17

申请号：US12974800

申请日：2010-12-21

申请人： Hiromu Miyazawa ,  Hiroshi Ito ,  Jiro Kato ,  Eiju Hirai ,  Toshihiro Shimizu

发明人： Hiromu Miyazawa ,  Hiroshi Ito ,  Jiro Kato ,  Eiju Hirai ,  Toshihiro Shimizu

IPC分类号： B41J2/045

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。

公开(公告)号：US08636341B2

公开(公告)日：2014-01-28

申请号：US12974851

申请日：2010-12-21

申请人： Hiromu Miyazawa ,  Hiroshi Ito ,  Jiro Kato ,  Toshihiro Shimizu

发明人： Hiromu Miyazawa ,  Hiroshi Ito ,  Jiro Kato ,  Toshihiro Shimizu

IPC分类号： B41J2/045

CPC分类号： B41J2/14233 ,  B41J2/055 ,  B41J2002/14241 ,  B41J2002/14419 ,  B41J2002/14491

摘要： A liquid ejecting head includes a flow channel forming substrate having a pressure generation chamber 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 chamber, 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 of the first electrode, an opening group is provided including at least one opening in the active section and the inactive section.

摘要翻译： 液体喷射头包括具有与喷嘴开口连通并沿着横向平行设置的压力产生室的流路形成基板。 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第一电极的压电层的实质驱动部分的非活动部分之间的边界中，开口组是 提供在活动部分和非活动部分中包括至少一个开口。

公开(公告)号：US08210662B2

公开(公告)日：2012-07-03

申请号：US12576994

申请日：2009-10-09

申请人： Hiromu Miyazawa ,  Hiroshi Ito ,  Koichi Morozumi ,  Jiro Kato

发明人： Hiromu Miyazawa ,  Hiroshi Ito ,  Koichi Morozumi ,  Jiro Kato

IPC分类号： B41J2/45

CPC分类号： B41J2/14233 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2002/14241

摘要： A liquid-ejecting head including a pressure-generating chamber communicating with an nozzle, and a piezoelectric element having a first electrode, a piezoelectric layer arranged above the first electrode, and a second electrode arranged above the piezoelectric layer. An internal electric field in the piezoelectric layer is biased toward the first electrode or the second electrode and no voltage is applied to the first electrode or the second electrode.

摘要翻译： 包括与喷嘴连通的压力产生室的液体喷射头以及具有第一电极，布置在第一电极上方的压电层和布置在压电层上方的第二电极的压电元件。 压电层内的内部电场朝向第一电极或第二电极偏置，也不向第一电极或第二电极施加电压。

公开(公告)号：US08534802B2

公开(公告)日：2013-09-17

申请号：US12562306

申请日：2009-09-18

申请人： Hiromu Miyazawa ,  Hiroshi Ito ,  Koichi Morozumi ,  Jiro Kato

发明人： Hiromu Miyazawa ,  Hiroshi Ito ,  Koichi Morozumi ,  Jiro Kato

IPC分类号： B41J2/045

CPC分类号： B41J2/14233 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2/055 ,  B41J2002/14241 ,  B41J2002/1425 ,  B41J2002/14266 ,  B41J2002/14419 ,  H01L41/0973

摘要： A liquid ejecting head including a fluid channel forming substrate including a pressure generating chamber communicating with a nozzle opening that ejects a liquid droplet and a piezoelectric element. The piezoelectric element has a first electrode, a piezoelectric material layer that is provided on the first electrode and has a perovskite monoclinic structure, and a second electrode formed on the piezoelectric material layer opposite to the first electrode. An angle formed between a direction of an electric field generated between the first and second electrodes and an orientation of a polarization moment of the piezoelectric material layer is greater than an angle formed between the direction of the electric field at a time when the piezoelectric constant of the piezoelectric material layer reaches a maximum level and the orientation of the polarization moment.

摘要翻译： 一种液体喷射头，包括：流体通道形成基板，包括与喷射液滴的喷嘴开口连通的压力产生室和压电元件。 压电元件具有第一电极，设置在第一电极上并具有钙钛矿单斜晶体结构的压电材料层，和形成在与第一电极相对的压电体层上的第二电极。 在第一和第二电极之间产生的电场的方向与压电材料层的极化力矩的方向之间形成的角度大于在压电材料层的压电常数 压电材料层达到最大水平和极化力矩的方向。

公开(公告)号：US08449084B2

公开(公告)日：2013-05-28

申请号：US13004823

申请日：2011-01-11

申请人： Hiromu Miyazawa ,  Hiroshi Ito ,  Jiro Kato

发明人： Hiromu Miyazawa ,  Hiroshi Ito ,  Jiro Kato

IPC分类号： B41J2/045

CPC分类号： B41J2/14233 ,  B41J2/055 ,  B41J2/161 ,  B41J2/1623 ,  B41J2/1629 ,  B41J2002/14241 ,  B41J2002/14419

摘要： A liquid ejection head comprising a flow-channel-containing substrate having pressure generating chambers communicating a nozzle opening and a piezoelectric element including a first electrode, a piezoelectric layer formed above the first electrode, and a second electrode formed above the piezoelectric layer. The piezoelectric layer includes an active portion which is substantially driven, a non-active portion which is not substantially driven, and a low dielectric material layer which has a dielectric constant lower than that of a center portion of the active portion and which is in the active portion side of the boundary between the active portion and the non-active portion.

摘要翻译： 一种液体喷射头，其特征在于，具备含有流路的基板，具有连通喷嘴开口的压力产生室和包括第一电极的压电元件，形成在第一电极上方的压电层，以及形成在压电层上方的第二电极。 压电层包括基本驱动的有源部分，基本上不被驱动的非有效部分和介电常数低于有源部分的中心部分的介电常数低的介质材料层， 在活动部分和非活动部分之间的边界的有效部分侧。

公开(公告)号：US20110169896A1

公开(公告)日：2011-07-14

申请号：US13004823

申请日：2011-01-11

申请人： Hiromu Miyazawa ,  Hiroshi Ito ,  Jiro Kato

发明人： Hiromu Miyazawa ,  Hiroshi Ito ,  Jiro Kato

IPC分类号： B41J2/045

CPC分类号： B41J2/14233 ,  B41J2/055 ,  B41J2/161 ,  B41J2/1623 ,  B41J2/1629 ,  B41J2002/14241 ,  B41J2002/14419

摘要： A liquid ejection head comprising a flow-channel-containing substrate having pressure generating chambers communicating a nozzle opening and a piezoelectric element including a first electrode, a piezoelectric layer formed above the first electrode, and a second electrode formed above the piezoelectric layer. The piezoelectric layer includes an active portion which is substantially driven, a non-active portion which is not substantially driven, and a low dielectric material layer which has a dielectric constant lower than that of a center portion of the active portion and which is in the active portion side of the boundary between the active portion and the non-active portion.

摘要翻译： 一种液体喷射头，其特征在于，具备含有流路的基板，具有连通喷嘴开口的压力产生室和包括第一电极的压电元件，形成在第一电极上方的压电层，以及形成在压电层上方的第二电极。 压电层包括基本驱动的有源部分，基本上不被驱动的非有效部分和介电常数低于有源部分的中心部分的介电常数低的介质材料层， 在活动部分和非活动部分之间的边界的有效部分侧。

公开(公告)号：US20050275696A1

公开(公告)日：2005-12-15

申请号：US11136311

申请日：2005-05-24

申请人： Hiromu Miyazawa ,  Motohisa Noguchi ,  Eiju Hirai ,  Takeshi Kijima

发明人： Hiromu Miyazawa ,  Motohisa Noguchi ,  Eiju Hirai ,  Takeshi Kijima

IPC分类号： B41J2/16 ,  B41J2/04 ,  B41J2/045 ,  B41J2/055 ,  B41J2/135 ,  B41J2/14 ,  B41J2/145 ,  C04B35/46 ,  C04B35/472 ,  C04B35/49 ,  C04B35/493 ,  F04B9/00 ,  F04B43/04 ,  F04B53/00 ,  H01L41/09 ,  H01L41/18 ,  H01L41/187 ,  H01L41/22 ,  H01L41/29 ,  H01L41/311 ,  H01L41/319 ,  H01L41/39 ,  H03B5/30 ,  H03H9/17 ,  H03H9/25

CPC分类号： H01L41/0815 ,  B41J2/14233 ,  B41J2002/14258 ,  F04B43/046 ,  H01L41/1875 ,  H01L41/318 ,  H01L41/319

摘要： A piezoelectric element in accordance with the present invention includes a base substrate, and a piezoelectric film formed above the base substrate, wherein the piezoelectric film is composed of a plurality of layers, at least two layers among the plurality of layers are composed of different relaxor materials, and the relaxor materials have a perovskite structure.

摘要翻译： 根据本发明的压电元件包括​​基底基板和形成在基底基板上的压电膜，其中压电膜由多个层组成，多个层中的至少两个层由不同的弛豫元件组成 材料，弛豫材料具有钙钛矿结构。

公开(公告)号：US08080924B2

公开(公告)日：2011-12-20

申请号：US12573654

申请日：2009-10-05

申请人： Hiromu Miyazawa ,  Jiro Kato

发明人： Hiromu Miyazawa ,  Jiro Kato

IPC分类号： H01L41/00 ,  H02N2/00

CPC分类号： H01L41/18 ,  B41J2/14233 ,  B41J2002/14241 ,  B41J2002/14419 ,  B41J2002/14491 ,  B41J2202/03 ,  H01L41/0973 ,  H01L41/1876

摘要： A liquid ejecting head including a pressure-generating chamber which communicates with a nozzle opening, and a piezoelectric element including a first electrode, a piezoelectric layer formed above the first electrode and having a perovskite structure represented by the general formula ABO3, and a second electrode formed above the piezoelectric layer, wherein the piezoelectric layer, lead, zirconium, and titanium are present at A sites of the perovskite structure, and lead, zirconium, and titanium are present at B sites of the perovskite structure.

摘要翻译： 一种液体喷射头，包括与喷嘴开口连通的压力产生室，以及包括第一电极的压电元件，形成在第一电极上方并具有由通式ABO3表示的钙钛矿结构的压电层，以及第二电极 形成在压电层的上方，其中压电层，铅，锆和钛存在于钙钛矿结构的A位，铅，锆和钛存在于钙钛矿结构的B位。

公开(公告)号：US08461747B2

公开(公告)日：2013-06-11

申请号：US13301950

申请日：2011-11-22

申请人： Hiromu Miyazawa ,  Jiro Kato

发明人： Hiromu Miyazawa ,  Jiro Kato

IPC分类号： H01L41/00 ,  B41J2/07

CPC分类号： H01L41/18 ,  B41J2/14233 ,  B41J2002/14241 ,  B41J2002/14419 ,  B41J2002/14491 ,  B41J2202/03 ,  H01L41/0973 ,  H01L41/1876

摘要： A liquid ejecting head including a pressure-generating chamber which communicates with a nozzle opening, and a piezoelectric element including a first electrode, a piezoelectric layer formed above the first electrode and having a perovskite structure represented by the general formula ABO3, and a second electrode formed above the piezoelectric layer, wherein the piezoelectric layer, lead, zirconium, and titanium are present at A sites of the perovskite structure, and lead, zirconium, and titanium are present at B sites of the perovskite structure.

摘要翻译： 一种液体喷射头，包括与喷嘴开口连通的压力产生室，以及包括第一电极的压电元件，形成在第一电极上方并具有由通式ABO3表示的钙钛矿结构的压电层，以及第二电极 形成在压电层的上方，其中压电层，铅，锆和钛存在于钙钛矿结构的A位，铅，锆和钛存在于钙钛矿结构的B位。

公开(公告)号：US5325345A

公开(公告)日：1994-06-28

申请号：US55795

申请日：1993-04-29

申请人： Satoshi Shimokawato ,  Hiromu Miyazawa ,  Toshiaki Mikoshiba ,  Hiroshi Ito ,  Masaya Ishida

发明人： Satoshi Shimokawato ,  Hiromu Miyazawa ,  Toshiaki Mikoshiba ,  Hiroshi Ito ,  Masaya Ishida

IPC分类号： G11B11/105 ,  G11B13/04 ,  G11B11/10 ,  G11B11/12

CPC分类号： G11B11/10528 ,  G11B11/10543

摘要： When data are thermo-magnetically recorded to a perpendicular magnetized film of a recording medium, it is possible to prevent unnecessary magnetic domains from being formed and unerasable magnetic domains from being produced. The medium 11 is rotated by a motor 12. When being passed through a recording field generated by a magnet 14, the medium 11 is irradiated with a recording beam generated by an optical head 13, so that data can be recorded to a perpendicular magnetized film of the medium 11 as bubble magnetic domains. Further, when the medium 11 passes through a correcting magnetic field generated by a magnet 15 disposed away from the position at which data are recorded, unnecessary and/or unerasable domains can be eliminated.

摘要翻译： 当将数据热磁记录到记录介质的垂直磁化膜上时，可以防止形成不必要的磁畴，并且不能产生不可接受的磁畴。 介质11由马达12旋转。当通过由磁体14产生的记录场时，介质11被由光学头13产生的记录光束照射，使得可以将数据记录到垂直磁化膜 的介质11作为气泡磁畴。 此外，当介质11通过由远离记录数据的位置设置的磁体15产生的校正磁场时，可以消除不必要的和/或不可取的域。