公开(公告)号：US07294953B2

公开(公告)日：2007-11-13

申请号：US11312487

申请日：2005-12-21

申请人： Akio Iwase ,  Shige Kadotani ,  Tetsuji Itou

发明人： Akio Iwase ,  Shige Kadotani ,  Tetsuji Itou

IPC分类号： H01L41/083 ,  H01L41/047

CPC分类号： H01L41/0472 ,  H01L41/0471 ,  H01L41/0833 ,  H01L41/273 ,  H01L41/293 ,  H01L41/297

摘要： This invention provides a stacked piezoelectric element that has excellent durability and reliability by ensuring reliable electrical conduction between internal electrode layer and conductive adhesive, and a method of fabricating such a stacked piezoelectric element, wherein the stacked piezoelectric element 1 comprises: a ceramic stack 10 constructed by alternately stacking piezoelectric layers 11 made of a piezoelectric material and internal electrode layers 21, 22 having electrical conductivity; and external electrodes 32 bonded to the side faces 101 and 102 of the ceramic stack 10 via an electrically conductive adhesive 31. The side faces 101 and 102 of the ceramic stack 10 are provided with electrode recesses 23 each formed by indenting a portion of the edge of each of the internal electrode layers 21, 22 in the stacking direction thereof thereby forming a gap between it and the overlying piezoelectric layer 11, and the conductive adhesive 31 is applied so as to enter the electrode recesses 23 from the side faces 101 and 102 of the ceramic stack 10.

摘要翻译： 本发明提供一种通过确保内部电极层与导电性粘合剂之间的可靠的电导率而具有优异的耐久性和可靠性的叠层式压电元件，以及制造这样的叠层型压电元件的方法，其中层压型压电元件1包括：构造的陶瓷叠层10 通过交替堆叠由压电材料制成的压电层11和具有导电性的内部电极层21,22; 外部电极32通过导电性粘接剂31与陶瓷叠层10的侧面101,102接合。 陶瓷堆叠10的侧面101和102设置有电极凹槽23，每个电极凹槽23通过在其堆叠方向上压缩每个内部电极层21,22的边缘的一部分而形成，从而在其与上覆层之间形成间隙 压电层11和导电粘合剂31被施加以从陶瓷堆叠10的侧面101和102进入电极凹部23。

公开(公告)号：US20060138908A1

公开(公告)日：2006-06-29

申请号：US11312487

申请日：2005-12-21

申请人： Akio Iwase ,  Shige Kadotani ,  Tetsuji Itou

发明人： Akio Iwase ,  Shige Kadotani ,  Tetsuji Itou

IPC分类号： H01L41/083

CPC分类号： H01L41/0472 ,  H01L41/0471 ,  H01L41/0833 ,  H01L41/273 ,  H01L41/293 ,  H01L41/297

摘要： This invention provides a stacked piezoelectric element that has excellent durability and reliability by ensuring reliable electrical conduction between internal electrode layer and conductive adhesive, and a method of fabricating such a stacked piezoelectric element. The stacked piezoelectric element 1 comprises: a ceramic stack 10 constructed by alternately stacking piezoelectric layers 11 made of a piezoelectric material and internal electrode layers 21, 22 having electrical conductivity; and external electrodes 32 bonded to the side faces 101 and 102 of the ceramic stack 10 via an electrically conductive adhesive 31. The side faces 101 and 102 of the ceramic stack 10 are provided with electrode recesses 23 each formed by indenting a portion of the edge of each of the internal electrode layers 21, 22 in the stacking direction thereof thereby forming a gap between it and the overlying piezoelectric layer 11, and the conductive adhesive 31 is applied so as to enter the electrode recesses 23 from the side faces 101 and 102 of the ceramic stack 10.

摘要翻译： 本发明提供一种通过确保内部电极层和导电粘合剂之间可靠的电导率而具有优异的耐久性和可靠性的堆叠式压电元件，以及制造这种叠层型压电元件的方法。 堆叠式压电元件1包括：通过交替堆叠由压电材料制成的压电层11和具有导电性的内部电极层21,22构成的陶瓷叠层10。 和经由导电粘合剂31结合到陶瓷堆叠10的侧面101和102的外部电极32.陶瓷堆叠10的侧面101和102设置有电极凹槽23，每个电极凹槽23通过将边缘的一部分 在层叠方向上形成内部电极层21,22的层叠方向，从而在其与覆盖压电层11之间形成间隙，并且从侧面101和102进入电极凹部23的导电性粘合剂31 的陶瓷叠层10。

公开(公告)号：US20060119220A1

公开(公告)日：2006-06-08

申请号：US11294690

申请日：2005-12-05

申请人： Akio Iwase ,  Shige Kadotani ,  Tetsuji Itou

发明人： Akio Iwase ,  Shige Kadotani ,  Tetsuji Itou

IPC分类号： H01L41/083

CPC分类号： H01L41/0838 ,  F02M51/0603 ,  F02M61/168 ,  F02M2200/80 ,  F02M2200/9007 ,  F02M2200/9038 ,  F02M2200/9046 ,  F02M2200/9053 ,  H01L41/0835 ,  H01L41/273 ,  H01L41/339

摘要： A hollow laminated piezoelectric element having excellent durability and reliability and capable of obtaining a high output, and a method of manufacturing the hollow laminated piezoelectric element are provided. A hollow laminated piezoelectric element 1 comprises a ceramic laminate 10 that is formed by having alternately laminated piezoelectric layers 11 made of a piezoelectric material and internal electrode layers 21 and 22 having conductivity and by having a center through hole 14 formed to pass through the ceramic laminate 10 along a lamination direction. The ceramic laminate 10 has an internally terminated structure in the inside periphery having at least a portion of inside peripheral ends of the internal electrode layers 21 and 22 terminated within the ceramic laminate 10 so that at least a portion of the inside peripheral ends of the internal electrode layers 21 and 22 is not exposed to the inside peripheral surface 104 of the ceramic laminate 10. The inside peripheral surface 104 of the ceramic laminate 10 has inside peripheral slits 13 having trenches provided in the peripheral direction toward the inside of the piezoelectric layers 11 from the inside peripheral surface 104.

摘要翻译： 提供具有优异的耐久性和可靠性并能够获得高输出的中空层压压电元件，以及制造中空层叠压电元件的方法。 中空层压压电元件1包括陶瓷层压体10，其通过具有由压电材料制成的交替层压的压电层11和具有导电性的内部电极层21和22以及形成为穿过陶瓷层压体的中心通孔14形成 10沿着层叠方向。 陶瓷层叠体10在内周部具有内部端接的结构，内部电极层21,22的内周端部的至少一部分终止于陶瓷层叠体10内，使内部的内周侧端部的至少一部分 电极层21,22不暴露于陶瓷层叠体10的内周面104。 陶瓷层叠体10的内周面104具有从内周面104朝向压电体层11的内侧设置有沟槽的内周狭缝13。

公开(公告)号：US07554250B2

公开(公告)日：2009-06-30

申请号：US11641121

申请日：2006-12-19

申请人： Shige Kadotani ,  Akio Iwase ,  Teruaki Yamaguchi

发明人： Shige Kadotani ,  Akio Iwase ,  Teruaki Yamaguchi

IPC分类号： H01L41/047

CPC分类号： H01L41/0833 ,  F02M63/0026 ,  H01L41/0472 ,  H01L41/293

摘要： A laminate-type piezoelectric element has a ceramic laminated body obtained by alternately laminating piezoelectric layers made of a piezoelectric material and inner electrode layers having electrical conductivity. Outer electrodes are joined to side surfaces of the ceramic laminated body via an electrically conductive adhesive. The electrically conductive adhesive has buried therein mesh bodies obtained by forming a mesh by using a nonmetallic material. The mesh bodies are desirably constituted by using any one of a resin, ceramic, carbon or glass.

摘要翻译： 叠层型压电元件具有通过交替层叠由压电材料制成的压电层和具有导电性的内部电极层而获得的陶瓷层叠体。 外电极通过导电粘合剂与陶瓷层叠体的侧表面接合。 导电粘合剂已经埋设有通过使用非金属材料形成网而获得的网状体。 网状体优选通过使用树脂，陶瓷，碳或玻璃中的任一种构成。

公开(公告)号：US20060043841A1

公开(公告)日：2006-03-02

申请号：US11212563

申请日：2005-08-29

申请人： Shige Kadotani ,  Akio Iwase

发明人： Shige Kadotani ,  Akio Iwase

IPC分类号： H01L41/083

CPC分类号： H01L41/0472 ,  H01L41/0477 ,  H01L41/0833 ,  H01L41/293

摘要： An object of the present invention is to provide a stacked piezoelectric element with excellent reliability and durability, a production method thereof and an electrically conducting adhesive. A stacked piezoelectric element comprising a ceramic stack obtained by alternately stacking a piezoelectric layer comprising a piezoelectric material and an internal electrode layer having electrical conductivity, and an electrically conducting adhesive layer provided to allow for electrical conduction to said internal electrode layer of the same polarity on the side surface of said ceramic stack, wherein said electrically conducting adhesive layer comprises a base resin having dispersed therein an electrically conducting filler and microparticles, and the boundary between said microparticle and said base resin is in a state that a void is formed at least in a part between those two members or in a state that when said base resin is elongated, a void can be formed between those two members.

摘要翻译： 本发明的目的是提供一种具有优异的可靠性和耐久性的堆叠式压电元件及其制造方法和导电粘合剂。 一种堆叠式压电元件，包括通过交替堆叠包括压电材料的压电层和具有导电性的内部电极层而获得的陶瓷叠层，以及导电粘合剂层，其设置成允许对所述内部电极层的导电具有相同的极性 所述陶瓷堆叠的侧表面，其中所述导电粘合剂层包括其中分散有导电填料和微粒的基础树脂，并且所述微粒和所述基础树脂之间的边界处于至少形成空隙的状态 这两个构件之间的部分或者当所述基础树脂伸长时，可以在这两个构件之间形成空隙。

公开(公告)号：US20070164638A1

公开(公告)日：2007-07-19

申请号：US11641121

申请日：2006-12-19

申请人： Shige Kadotani ,  Akio Iwase ,  Teruaki Yamaguchi

发明人： Shige Kadotani ,  Akio Iwase ,  Teruaki Yamaguchi

IPC分类号： H01L41/083

CPC分类号： H01L41/0833 ,  F02M63/0026 ,  H01L41/0472 ,  H01L41/293

摘要： A laminate-type piezoelectric element 1 having a ceramic laminated body 10 obtained by alternately laminating piezoelectric layers 11 made of a piezoelectric material and inner electrode layers 20 having electrical conductivity, and having outer electrodes 34 joined to the side surfaces 101 and 102 of the ceramic laminated body 10 via an electrically conductive adhesive 33, wherein the electrically conductive adhesive 33 has buried therein mesh bodies 4 obtained by forming a mesh by using a nonmetallic material. The mesh bodies 4 are desirably constituted by using any one of a resin, ceramic, carbon or glass.

摘要翻译： 具有通过交替层叠由压电材料制成的压电层11和具有导电性的内部电极层20而获得的陶瓷层叠体10的层叠型压电元件1，并且具有接合到陶瓷的侧表面101和102的外部电极34 层压体10经由导电性粘合剂33而形成，其中，导电性粘合剂33埋设有通过使用非金属材料形成网状而得到的网状体4。 网状体4优选使用树脂，陶瓷，碳或玻璃中的任一种构成。

公开(公告)号：US08240582B2

公开(公告)日：2012-08-14

申请号：US12528683

申请日：2008-02-26

申请人： Satoshi Suzuki ,  Atsushi Murai ,  Hiroaki Asano ,  Kouji Noda ,  Toshiatu Nagaya ,  Akio Iwase ,  Akira Fujii ,  Shige Kadotani

发明人： Satoshi Suzuki ,  Atsushi Murai ,  Hiroaki Asano ,  Kouji Noda ,  Toshiatu Nagaya ,  Akio Iwase ,  Akira Fujii ,  Shige Kadotani

IPC分类号： B05B1/08

CPC分类号： H01L41/0838 ,  F02M63/0026 ,  H01L41/273

摘要： A stacked piezoelectric device 1 including a ceramic laminate formed by laminating piezoelectric ceramic layers and inner electrode layers alternately and a pair of side electrodes. The inner electrode layers 13 and 14 have inner electrode portions 131 and 141 and the recessed portions 132 and 142. The ceramic laminate 15 has the stress absorbing portions 11 and 12. A recessed distance of one of two of the recessed portions 132 and 142 which interleave the stress absorbing portions 11 and 12 therebetween which is located on the same side surface as the stress absorbing portion 11 or 12 is greater than the depth of the stress absorbing portion 11 and 12.

摘要翻译： 包括通过交替层叠压电陶瓷层和内部电极层而形成的陶瓷层叠体的叠层型压电装置1和一对侧面电极。 内部电极层13和14具有内部电极部分131和141以及凹陷部分132和142.陶瓷层压体15具有应力吸收部分11和12.两个凹部132和142中的一个的凹入距离 交替位于与应力吸收部分11或12相同的侧表面上的应力吸收部分11和12大于应力吸收部分11和12的深度。

公开(公告)号：US20100139621A1

公开(公告)日：2010-06-10

申请号：US12528677

申请日：2008-02-26

申请人： Atsushi Murai ,  Satoshi Suzuki ,  Toshiatu Nagaya ,  Akio Iwase ,  Akira Fujii ,  Shige Kadotani

发明人： Atsushi Murai ,  Satoshi Suzuki ,  Toshiatu Nagaya ,  Akio Iwase ,  Akira Fujii ,  Shige Kadotani

IPC分类号： F02M51/00 ,  H01L41/083 ,  H01L41/24 ,  H01L41/047

CPC分类号： H01L41/273 ,  H01L41/0838 ,  Y10T29/42

摘要： A stacked piezoelectric device 1 includes a ceramic laminate 15 formed by laminating a plurality of piezoelectric ceramic layers 11 and a plurality of inner electrode layers 13 and 14 alternately and a pair of side electrodes 17 and 18 formed on side surfaces thereof. The inner electrode layers 13 and 14 are connected electrically to either of the side electrodes. The ceramic laminate 15 has absorbing portions 12 formed in slit-like areas recessed inwardly from the side surfaces thereof. The stress absorbing portions are easier to deform than the piezoelectric ceramic layers 11. Adjacent two of the inner electrode layers 13 and 14 interleaving the stress absorbing portion 12 therebetween are both connected electrically to the positive side electrode 17.

摘要翻译： 堆叠式压电装置1包括通过交替地层叠多个压电陶瓷层11和多个内部电极层13和14而形成的陶瓷层压体15和形成在其侧表面上的一对侧面电极17和18。 内电极层13和14电连接到任一侧电极。 陶瓷层叠体15具有从其侧面向内凹陷的狭缝状区域形成的吸收部12。 应力吸收部分比压电陶瓷层11更容易变形。彼此相邻的内部电极层13和14之间的两个内部电极层13和14两者都与正极侧电极17电连接。

公开(公告)号：US20050231074A1

公开(公告)日：2005-10-20

申请号：US11101458

申请日：2005-04-08

申请人： Akio Iwase ,  Shige Kadotani ,  Kenji Suzuki

发明人： Akio Iwase ,  Shige Kadotani ,  Kenji Suzuki

IPC分类号： F02M51/00 ,  F02M51/06 ,  H01L41/083 ,  H01L41/187 ,  H01L41/22 ,  H01L41/273 ,  H01L41/297 ,  H01L41/339 ,  H02N2/00

CPC分类号： H01L41/293 ,  B26F2001/407 ,  H01L41/0472 ,  H01L41/0833

摘要： A stacked-type piezoelectric device comprising a ceramic stacked body constituted by alternately stacking ceramic layers and internal electrode layers one upon another, and a pair of external electrodes bonded respectively to a pair of bond surfaces formed on an outer peripheral surface of the ceramic stacked body, in which the ceramic stacked body has, at least partially in a peripheral direction, a groove portion recessed in a groove shape from its outer peripheral surface in such a fashion as to be adjacent to a stacking surface of each internal electrode layer, and a production method thereof.

摘要翻译： 一种层叠型压电元件，其特征在于，具有通过交替地层叠陶瓷层和内部电极层而构成的陶瓷层叠体，以及分别与形成在所述陶瓷层叠体的外周面上的一对接合面接合的一对外部电极 其特征在于，陶瓷层叠体至少部分地具有圆周方向，从与其外周面凹入的槽状，与邻接于每个内部电极层的堆叠表面的方式， 生产方法。

公开(公告)号：US20100140379A1

公开(公告)日：2010-06-10

申请号：US12528683

申请日：2008-02-26

申请人： Satoshi Suzuki ,  Atsushi Murai ,  Hiroaki Asano ,  Kouji Noda ,  Toshiatu Nagaya ,  Akio Iwase ,  Akira Fujii ,  Shige Kadotani

发明人： Satoshi Suzuki ,  Atsushi Murai ,  Hiroaki Asano ,  Kouji Noda ,  Toshiatu Nagaya ,  Akio Iwase ,  Akira Fujii ,  Shige Kadotani

IPC分类号： F02M51/06 ,  H01L41/083 ,  H01L41/187

CPC分类号： H01L41/0838 ,  F02M63/0026 ,  H01L41/273

摘要： A stacked piezoelectric device 1 including a ceramic laminate formed by laminating piezoelectric ceramic layers and inner electrode layers alternately and a pair of side electrodes. The inner electrode layers 13 and 14 have inner electrode portions 131 and 141 and the recessed portions 132 and 142. The ceramic laminate 15 has the stress absorbing portions 11 and 12. A recessed distance of one of two of the recessed portions 132 and 142 which interleave the stress absorbing portions 11 and 12 therebetween which is located on the same side surface as the stress absorbing portion 11 or 12 is greater than the depth of the stress absorbing portion 11 and 12.

摘要翻译： 包括通过交替层叠压电陶瓷层和内部电极层而形成的陶瓷层叠体的叠层型压电装置1和一对侧面电极。 内部电极层13和14具有内部电极部分131和141以及凹陷部分132和142.陶瓷层压体15具有应力吸收部分11和12.两个凹部132和142中的一个的凹入距离 交替位于与应力吸收部分11或12相同的侧表面上的应力吸收部分11和12大于应力吸收部分11和12的深度。