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1. 发明授权

US08567919B2 Piezoelectric element, piezoelectric actuator, liquid ejecting head, and liquid ejecting apparatus 有权
标题翻译：压电元件，压电致动器，液体喷射头和液体喷射装置
公开(公告)号：US08567919B2
公开(公告)日：2013-10-29
申请号：US12880295
申请日：2010-09-13
申请人： Koichi Morozumi , Toshiki Hara , Jiro Kato , Satoshi Denda
发明人： Koichi Morozumi , Toshiki Hara , Jiro Kato , Satoshi Denda
IPC分类号： B41J2/045 , H01L41/18 , H01L41/187 , C04B35/495 , C04B35/00
CPC分类号： B41J2/14233 , H01L41/1876
摘要： A piezoelectric element includes a first conductive layer, a second conductive layer facing the first conductive layer, and a piezoelectric layer between the first and second conductive layers, composed of a compound oxide containing at least lead, zirconium, titanium, and oxygen. The piezoelectric layer includes a first crystal layer on the first conductive layer side of the piezoelectric layer and a second crystal layer continued from the first crystal layer, nearer to the second conductive layer side than the first crystal layer. In the piezoelectric layer, the lead concentration in the first conductive layer side of the first crystal layer is lower than that in the second conductive layer side of the second crystal layer. In the piezoelectric layer, the oxygen concentration in the first conductive layer side of the first crystal layer is higher than that in the second conductive layer side of the second crystal layer.
摘要翻译：压电元件包括第一导电层，与第一导电层相对的第二导电层，以及由至少含有铅，锆，钛和氧的复合氧化物构成的第一和第二导电层之间的压电层。压电层包括在压电层的第一导电层侧上的第一晶体层和从第一晶体层延续的第二晶体层，比第一晶体层更靠近第二导电层侧。在压电层中，第一晶体层的第一导电层侧的引线浓度低于第二晶体层的第二导电层侧的引线浓度。在压电层中，第一结晶层的第一导电层侧的氧浓度高于第二结晶层的第二导电层侧的氧浓度。

2. 发明授权

US08534802B2 Liquid ejecting head, liquid ejecting apparatus and actuator device 有权
标题翻译：液体喷射头，液体喷射装置和致动器装置
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。

3. 发明授权

US08262202B2 Liquid ejecting head, liquid ejecting apparatus and piezoelectric element 有权
标题翻译：液体喷射头，液体喷射装置和压电元件
公开(公告)号：US08262202B2
公开(公告)日：2012-09-11
申请号：US12500474
申请日：2009-07-09
申请人： Koichi Morozumi , Jiro Kato , Satoshi Denda , Ichiro Asaoka
发明人： Koichi Morozumi , Jiro Kato , Satoshi Denda , Ichiro Asaoka
IPC分类号： B41J2/045
CPC分类号： B41J2/14233 , B41J2002/14241 , B41J2002/14419 , H01L41/0805 , H01L41/1876 , H01L41/318
摘要： A liquid ejecting head including a pressure generating chamber that communicates with a nozzle opening that ejects liquid and a piezoelectric element that generates a pressure change in the pressure generating chamber. The piezoelectric element includes a first electrode, a piezoelectric body layer that is formed on the first electrode which includes a grain-shaped region, and a second electrode that is formed on a side of the piezoelectric body layer that is opposite to the first electrode.
摘要翻译：液体喷射头包括与喷射液体的喷嘴开口连通的压力发生室和在压力发生室中产生压力变化的压电元件。压电元件包括第一电极，形成在包括晶粒区域的第一电极上的压电体层和形成在压电体层的与第一电极相对的一侧上的第二电极。

4. 发明申请

US20110063376A1 PIEZOELECTRIC ELEMENT, LIQUID EJECTING HEAD, AND LIQUID EJECTING APPARATUS 有权
标题翻译：压电元件，液体喷射头和液体喷射装置
公开(公告)号：US20110063376A1
公开(公告)日：2011-03-17
申请号：US12880283
申请日：2010-09-13
申请人： Koichi MOROZUMI , Toshiki HARA , Jiro KATO , Satoshi DENDA
发明人： Koichi MOROZUMI , Toshiki HARA , Jiro KATO , Satoshi DENDA
IPC分类号： B41J2/045 , H01L41/18
CPC分类号： B41J2/14233 , B41J2202/03 , H01L41/0973 , H01L41/1876 , H01L41/314
摘要： A piezoelectric element includes a first conductive layer, a second conductive layer disposed to face the first conductive layer, and a piezoelectric layer disposed between the first conductive layer and the second conductive layer and composed of a compound oxide containing at least lead, zirconium, titanium, and oxygen. The piezoelectric layer includes a lead concentration gradient region in which the lead concentration increases from the first conductive layer side to the second conductive layer side. The lead concentration gradient region is disposed on the first conductive layer side of the piezoelectric layer.
摘要翻译：压电元件包括第一导电层，与第一导电层相对设置的第二导电层，以及设置在第一导电层和第二导电层之间并由至少含有铅，锆，钛的复合氧化物构成的压电层，和氧气。压电层包括引线浓度从第一导电层侧向第二导电层侧增加的引线浓度梯度区域。引线浓度梯度区域设置在压电层的第一导电层侧。

5. 发明申请

US20100091075A1 LIQUID-EJECTING HEAD, LIQUID-EJECTING APPARATUS AND ACTUATOR DEVICE 有权
标题翻译：液体喷射头，液体喷射装置和执行器装置
公开(公告)号：US20100091075A1
公开(公告)日：2010-04-15
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： B41J2/045
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。

6. 发明申请

US20100007705A1 LIQUID EJECTING HEAD, LIQUID EJECTING APPARATUS AND PIEZOELECTRIC ELEMENT 有权
标题翻译：液体喷射头，液体喷射装置和压电元件
公开(公告)号：US20100007705A1
公开(公告)日：2010-01-14
申请号：US12500474
申请日：2009-07-09
申请人： Koichi MOROZUMI , Jiro KATO , Satoshi DENDA , Ichiro ASAOKA
发明人： Koichi MOROZUMI , Jiro KATO , Satoshi DENDA , Ichiro ASAOKA
IPC分类号： B41J2/045
CPC分类号： B41J2/14233 , B41J2002/14241 , B41J2002/14419 , H01L41/0805 , H01L41/1876 , H01L41/318
摘要： A liquid ejecting head including a pressure generating chamber that communicates with a nozzle opening that ejects liquid and a piezoelectric element that generates a pressure change in the pressure generating chamber. The piezoelectric element includes a first electrode, a piezoelectric body layer that is formed on the first electrode which includes a grain-shaped region, and a second electrode that is formed on a side of the piezoelectric body layer that is opposite to the first electrode.
摘要翻译：液体喷射头包括与喷射液体的喷嘴开口连通的压力发生室和在压力发生室中产生压力变化的压电元件。压电元件包括第一电极，形成在包括晶粒区域的第一电极上的压电体层和形成在压电体层的与第一电极相对的一侧上的第二电极。

7. 发明授权

US08820898B2 Droplet-ejecting head, droplet-ejecting apparatus, and piezoelectric element 有权
标题翻译：液滴喷射头，液滴喷射装置和压电元件
公开(公告)号：US08820898B2
公开(公告)日：2014-09-02
申请号：US12891950
申请日：2010-09-28
申请人： Hiromu Miyazawa , Koichi Morozumi
发明人： Hiromu Miyazawa , Koichi Morozumi
IPC分类号： B41J2/045 , H01L41/083 , C04B35/491 , B41J2/14 , H01L41/187
CPC分类号： B41J2/14233 , B41J2/161 , B41J2/1626 , B41J2/1631 , B41J2/1646 , B41J2002/14258 , C04B35/491 , H01L41/0477 , H01L41/0831 , H01L41/0973 , H01L41/1876 , H01L41/318 , H01L41/319
摘要： A droplet-ejecting head including a substrate including a pressure chamber communicating with a nozzle hole and also a piezoelectric element that includes a lower electrode, a piezoelectric layer which is formed above the lower electrode, and an upper electrode formed above the piezoelectric element and that causes a change in pressure in a liquid contained in the pressure chamber. The piezoelectric layer includes a first piezoelectric sub-layer located on the lower electrode and a second piezoelectric sub-layer located between the first piezoelectric sub-layer and the upper electrode. The first piezoelectric sub-layer has a polarization axis predominantly directed in an in-plane direction of the first piezoelectric sub-layer. The second piezoelectric sub-layer is predominantly (100)-oriented in the pseudocubic coordinate system.
摘要翻译：一种液滴喷射头，包括具有与喷嘴孔连通的压力室的基板以及包括下电极的压电元件，形成在下电极上方的压电层和形成在压电元件上方的上电极，并且导致包含在压力室中的液体中的压力变化。压电层包括位于下电极上的第一压电子层和位于第一压电子层和上电极之间的第二压电子层。第一压电子层具有主要指向第一压电子层的面内方向的偏振轴。第二压电子层主要（100）取向在仿立方坐标系中。

8. 发明授权

US08770723B2 Piezoelectric element, liquid ejecting head, and liquid ejecting apparatus 有权
标题翻译：压电元件，液体喷射头和液体喷射装置
公开(公告)号：US08770723B2
公开(公告)日：2014-07-08
申请号：US13295326
申请日：2011-11-14
申请人： Tomohiro Sakai , Koichi Morozumi , Tsutomu Asakawa
发明人： Tomohiro Sakai , Koichi Morozumi , Tsutomu Asakawa
IPC分类号： B41J2/045 , H01L41/00 , H02N2/00
CPC分类号： H01L41/0815 , B41J2/055 , B41J2/14233 , B41J2/161 , B41J2/1628 , B41J2/1629 , B41J2/1634 , B41J2/1642 , B41J2/1645 , B41J2/1646 , B41J2002/14241 , B41J2002/14258 , B41J2002/14419 , H01L41/1878 , H01L41/318
摘要： A piezoelectric element comprises a electrode and a piezoelectric layer made of a complex oxide having a perovskite structure containing at least bismuth, barium, iron, and titanium. A layered compound containing iron, barium, titanium and oxygen is formed between the piezoelectric layer and the electrode.
摘要翻译：压电元件包括电极和由具有至少含有铋，钡，铁和钛的钙钛矿结构的复合氧化物制成的压电层。在压电层和电极之间形成含铁，钡，钛和氧的层状化合物。

9. 发明授权

US08657416B2 Piezoelectric element, liquid ejecting head, and liquid ejecting apparatus 有权
公开(公告)号：US08657416B2
公开(公告)日：2014-02-25
申请号：US13295326
申请日：2011-11-14
申请人： Tomohiro Sakai , Koichi Morozumi , Tsutomu Asakawa
发明人： Tomohiro Sakai , Koichi Morozumi , Tsutomu Asakawa
IPC分类号： B41J2/045 , H01L41/00 , H02N2/00
摘要： A piezoelectric element comprises a electrode and a piezoelectric layer made of a complex oxide having a perovskite structure containing at least bismuth, barium, iron, and titanium. A layered compound containing iron, barium, titanium and oxygen is formed between the piezoelectric layer and the electrode.

10. 发明授权

US08646879B2 Piezoelectric element, liquid ejecting head, and liquid ejecting apparatus 有权
标题翻译：压电元件，液体喷射头和液体喷射装置
公开(公告)号：US08646879B2
公开(公告)日：2014-02-11
申请号：US13353177
申请日：2012-01-18
申请人： Hiromu Miyazawa , Takayuki Yonemura , Koichi Morozumi , Tomohiro Sakai
发明人： Hiromu Miyazawa , Takayuki Yonemura , Koichi Morozumi , Tomohiro Sakai
IPC分类号： B41J2/045 , C04B35/495 , H01L41/18 , H01L41/187 , C04B35/00
CPC分类号： H01L27/20 , B41J2/14233 , C04B35/26 , C04B35/2683 , C04B35/2691 , C04B35/62218 , C04B2235/3201 , C04B2235/3208 , C04B2235/3213 , C04B2235/3232 , C04B2235/3234 , C04B2235/3239 , C04B2235/3251 , C04B2235/3262 , C04B2235/3293 , C04B2235/3298 , C04B2235/80 , H01L41/0973 , H01L41/1871 , H01L41/1878 , H01L41/318 , H01L41/332
摘要： A piezoelectric element comprises a piezoelectric layer and an electrode which is provided with the piezoelectric layer. The piezoelectric layer comprises a complex oxide which has a perovskite structure including bismuth, iron, a first dopant element which is at least one type selected from a group formed from sodium, potassium, calcium, and strontium, and a second dopant element which is at least one type selected from a group formed from manganese, titanium, vanadium, niobium, and tin.
摘要翻译：压电元件包括压电层和设置有压电层的电极。该压电层包括具有钙钛矿结构的复合氧化物，其包括铋，铁，第一掺杂元素，其是选自由钠，钾，钙和锶组成的组中的至少一种，第二掺杂剂元素位于选自由锰，钛，钒，铌和锡形成的组中的至少一种。

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