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1. 发明申请

US20070273251A1 Multi-Layer Piezoelectric Element 有权
标题翻译：多层压电元件
公开(公告)号：US20070273251A1
公开(公告)日：2007-11-29
申请号：US10573331
申请日：2004-09-22
申请人： Takeshi Okamura , Katsushi Sakaue , Shigenobu Nakaumra
发明人： Takeshi Okamura , Katsushi Sakaue , Shigenobu Nakaumra
IPC分类号： H01L41/083
CPC分类号： H01L41/0471 , F02M51/0603 , H01L41/0472 , H01L41/0477
摘要： A multi-layer piezoelectric element having excellent durability in which the amount of displacement does not change even after subjecting to continuous operation over a long period of time under a high voltage and a high pressure is provided. The multi-layer piezoelectric element comprises a stack formed by stacking piezoelectric layers and internal electrodes alternately one on another and external electrodes formed on a first side face and on a second side face of the stack, wherein one of the adjacent internal electrodes is connected to the external electrode formed on the first side face and the other internal electrode is connected to the external electrode formed on the second side face, while the metal composition contained in the internal electrodes contains group VIII metal and group Ib metal of the periodic table as the main components, and contents of the group VIII metal and the group Ib metal are set so that proportion M1 (% by weight) of the group VIII metal and proportion M2 of the group Ib metal satisfy the relations 0
摘要翻译：提供了一种具有优异的耐久性的层叠型压电元件，其中即使在高电压和高压下长时间连续操作，位移量也不变化。所述层叠型压电元件具有将叠层的压电层和内部电极彼此交替堆叠而形成的叠层和形成在所述堆叠的第一侧面和第二侧面上的外部电极，其中，所述相邻的内部电极之一与形成在第一侧面上的外部电极和另一个内部电极连接到形成在第二侧面上的外部电极，而包含在内部电极中的金属组合物包含周期表的VIII族金属和Ib族金属作为主要成分和VIII族金属和Ib族金属的含量被设定为使得第Ⅷ族金属的比例M 1（重量％）和Ib族金属的比例M 2满足关系0

2. 发明授权

US07633214B2 Multi-layer piezoelectric element 有权
标题翻译：多层压电元件
公开(公告)号：US07633214B2
公开(公告)日：2009-12-15
申请号：US10573331
申请日：2004-09-22
申请人： Takeshi Okamura , Katsushi Sakaue , Shigenobu Nakaumra
发明人： Takeshi Okamura , Katsushi Sakaue , Shigenobu Nakaumra
IPC分类号： H01L41/047 , H01L41/18
CPC分类号： H01L41/0471 , F02M51/0603 , H01L41/0472 , H01L41/0477
摘要： A multi-layer piezoelectric element having excellent durability in which the amount of displacement does not change even after subjecting to continuous operation over a long period of time under a high voltage and a high pressure is provided. The multi-layer piezoelectric element comprises a stack formed by stacking piezoelectric layers and internal electrodes alternately one on another and external electrodes the proportion of silver contained in electrically conductive material of the internal electrode near the junction with the external electrode is higher than the proportion of silver contained in electrically conductive material of the internal electrode located inside of the stack.
摘要翻译：提供了一种具有优异的耐久性的层叠型压电元件，其中即使在高电压和高压下长时间连续操作，位移量也不变化。层叠型压电元件具有层叠压电体层和内部电极而形成的层叠体，外部电极与内部电极的与外部电极的接合点附近的导电性材料中含有的银的比例高于包含在位于堆叠内部的内部电极的导电材料中的银。

3. 发明申请

US20080303385A1 Multi-Layer Piezoelectric Device 审中-公开
标题翻译：多层压电器件
公开(公告)号：US20080303385A1
公开(公告)日：2008-12-11
申请号：US12191191
申请日：2008-08-13
申请人： Takeshi Okamura , Katsushi Sakaue , Mitsuo Kondo
发明人： Takeshi Okamura , Katsushi Sakaue , Mitsuo Kondo
IPC分类号： H01L41/047
CPC分类号： H01L41/1876 , F02M51/0603 , F02M61/167 , H01L41/0471 , H01L41/0472 , H01L41/0477
摘要： To provide a multi-layer piezoelectric device having excellent durability in which the amount of displacement does not change even when the piezoelectric actuator is subjected to continuous operation over a long period of time under a high voltage and a high pressure, the multi-layer piezoelectric device comprises a stack formed by stacking piezoelectric layers and internal electrodes alternately one on another and external electrodes formed on a first side face and on a second side face of the stack, wherein one of the adjacent internal electrodes is connected to the external electrode formed on the first side face and the other internal electrode is connected to the external electrode formed on the second side face, while content of alkali metal in a range from 5 ppm to 300 ppm is contained.
摘要翻译：为了提供即使在压电致动器在高电压和高压下长时间连续操作的情况下，位移量也不会改变的耐久性优异的层叠型压电元件，则层叠型压电体器件包括通过将压电层和内部电极彼此交替堆叠而形成的堆叠和形成在堆叠的第一侧面和第二侧面上的外部电极，其中相邻的内部电极中的一个连接到形成在其上的外部电极第一侧面和另一个内部电极连接到形成在第二侧面上的外部电极，同时含有5ppm至300ppm范围内的碱金属含量。

4. 发明申请

US20070205700A1 Multi-Layer Piezoeletric Element 有权
标题翻译：多层压电元件
公开(公告)号：US20070205700A1
公开(公告)日：2007-09-06
申请号：US10573339
申请日：2004-09-22
申请人： Takeshi Okamura , Katsushi Sakaue , Mitsuo Kondo
发明人： Takeshi Okamura , Katsushi Sakaue , Mitsuo Kondo
IPC分类号： H01L41/083
CPC分类号： H01L41/1876 , F02M51/0603 , F02M61/167 , H01L41/0471 , H01L41/0472 , H01L41/0477
摘要： To provide a multi-layer piezoelectric device having excellent durability in which the amount of displacement does not change even when the piezoelectric actuator is subjected to continuous operation over a long period of time under a high voltage and a high pressure, the multi-layer piezoelectric device comprises a stack formed by stacking piezoelectric layers and internal electrodes alternately one on another and external electrodes formed on a first side face and on a second side face of the stack, wherein one of the adjacent internal electrodes is connected to the external electrode formed on the first side face and the other internal electrode is connected to the external electrode formed on the second side face, while content of alkali metal in a range from 5 ppm to 300 ppm is contained.
摘要翻译：为了提供即使在压电致动器在高电压和高压下长时间连续操作的情况下，位移量也不会改变的耐久性优异的层叠型压电元件，则层叠型压电体器件包括通过将压电层和内部电极彼此交替堆叠而形成的堆叠和形成在堆叠的第一侧面和第二侧面上的外部电极，其中相邻的内部电极中的一个连接到形成在其上的外部电极第一侧面和另一个内部电极连接到形成在第二侧面上的外部电极，同时含有5ppm至300ppm范围内的碱金属含量。

5. 发明授权

US07633210B2 Multi-layer electronic component and method for manufacturing the same, multi-layer piezoelectric element 有权
标题翻译：多层电子元件及其制造方法，层叠型压电元件
公开(公告)号：US07633210B2
公开(公告)日：2009-12-15
申请号：US10566044
申请日：2004-07-28
申请人： Susumu Ono , Takeshi Okamura , Katsushi Sakaue , Takaaki Hira , Masaki Terazono
发明人： Susumu Ono , Takeshi Okamura , Katsushi Sakaue , Takaaki Hira , Masaki Terazono
IPC分类号： H01L41/083
CPC分类号： H01L41/083 , H01L41/0471 , H01L41/273
摘要： In order to provide a multi-layer electronic component in which the occurrence of delamination between the ceramic layer and the internal electrode is restricted and a method for manufacturing the same, the multi-layer electronic component of the present invention comprises a stack formed by stacking piezoelectric layers and internal electrodes one on another alternately and a pair of external electrodes formed on two opposing side faces of the stack, wherein the internal electrode consists of a first internal electrode connected to the external electrode formed on one of the two side faces and a second internal electrode located between the first internal electrode and connected to the external electrode formed on the other one of the two side faces, and wherein the internal electrodes and the piezoelectric layers are faced in proximity so that a space between them is 2 μm or less over an area occupying 50% or more of the active region where the first internal electrode and the second internal electrode oppose each other.
摘要翻译：为了提供限制陶瓷层和内部电极之间的分层的发生的多层电子部件及其制造方法，本发明的多层电子部件包括：叠层体压电层和内部电极彼此交替设置，一对外部电极形成在堆叠的两个相对侧面上，其中内部电极由连接到形成在两个侧面中的一个侧面上的外部电极的第一内部电极和所述第二内部电极位于所述第一内部电极之间并且与形成在所述两个侧面中的另一个侧面上的所述外部电极连接，并且其中所述内部电极和所述压电层面对，使得它们之间的空间为2μm或更小在占有第一内部电极和第二内部电极的有源区域的50％以上的区域上 d内部电极彼此相对。

6. 发明申请

US20100156250A1 Multi-Layer Piezoelectric Element and Method for Manufacturing the Same 有权
标题翻译：多层压电元件及其制造方法
公开(公告)号：US20100156250A1
公开(公告)日：2010-06-24
申请号：US12717018
申请日：2010-03-03
申请人： Mitsuo Kondo , Masaki Terazono , Takeshi Okamura , Katsushi Sakaue
发明人： Mitsuo Kondo , Masaki Terazono , Takeshi Okamura , Katsushi Sakaue
IPC分类号： H01L41/16 , H01L41/047
CPC分类号： H01L41/0472 , H01L41/0471 , H01L41/0477 , H01L41/273 , Y10T29/42
摘要： A multi-layer piezoelectric element having high durability which allows it to increase the amount of displacement of a piezoelectric actuator under high voltage and high pressure and does not undergo a change in the amount of displacement during continuous operation in a high electric field and under a high pressure over a long time period is provided.The multi-layer piezoelectric element comprises a stack of at least one piezoelectric layer and a plurality of internal electrodes consisting of first and second internal electrodes placed one on another, a first external electrode formed on a first side face of the stack and connected to the first internal electrode and a second external electrode formed on a second side face of the stack and connected to the second internal electrode, wherein the bonding strength between the piezoelectric layer and the internal electrode is weaker than the bending strength of the piezoelectric layer.
摘要翻译：一种具有高耐久性的多层压电元件，其能够在高电压和高压下增加压电致动器的位移量，并且在高电场和在高电压下连续操作期间不会发生位移量变化提供了长时间的高压。所述层叠型压电元件包括由至少一个压电体层叠的多个内部电极和由彼此重叠的第一和第二内部电极组成的多个内部电极，形成在所述堆叠体的第一侧面上的第一外部电极，第一内部电极和第二外部电极，形成在所述堆叠的第二侧面上并与所述第二内部电极连接，其中所述压电层和所述内部电极之间的接合强度弱于所述压电层的弯曲强度。

7. 发明申请

US20090045701A1 Multi-Layer Piezoelectric Device 有权
标题翻译：多层压电器件
公开(公告)号：US20090045701A1
公开(公告)日：2009-02-19
申请号：US12191168
申请日：2008-08-13
申请人： Takeshi Okamura , Katsushi Sakaue , Mitsuo Kondo
发明人： Takeshi Okamura , Katsushi Sakaue , Mitsuo Kondo
IPC分类号： H01L41/083
CPC分类号： H01L41/1876 , F02M51/0603 , F02M61/167 , H01L41/0471 , H01L41/0472 , H01L41/0477
摘要： To provide a multi-layer piezoelectric device having excellent durability in which the amount of displacement does not change even when the piezoelectric actuator is subjected to continuous operation over a long period of time under a high voltage and a high pressure, the multi-layer piezoelectric device comprises a stack formed by stacking piezoelectric layers and internal electrodes alternately one on another and external electrodes formed on a first side face and on a second side face of the stack, wherein one of the adjacent internal electrodes is connected to the external electrode formed on the first side face and the other internal electrode is connected to the external electrode formed on the second side face, while content of alkali metal in a range from 5 ppm to 300 ppm is contained.
摘要翻译：为了提供即使在压电致动器在高电压和高压下长时间连续操作的情况下，位移量也不会改变的耐久性优异的层叠型压电元件，则层叠型压电体器件包括通过将压电层和内部电极彼此交替堆叠而形成的堆叠和形成在堆叠的第一侧面和第二侧面上的外部电极，其中相邻的内部电极中的一个连接到形成在其上的外部电极第一侧面和另一个内部电极连接到形成在第二侧面上的外部电极，同时含有5ppm至300ppm范围内的碱金属含量。

8. 发明申请

US20070209173A1 Laminated Piezoelectric Device 有权
标题翻译：层压压电器件
公开(公告)号：US20070209173A1
公开(公告)日：2007-09-13
申请号：US10596475
申请日：2004-12-17
申请人： Takaaki Hira , Takeshi Okamura , Masaki Terazono , Hirotaka Tsuyoshi , Ryuusuke Tsuyoshi , Katsushi Sakaue
发明人： Takaaki Hira , Takeshi Okamura , Masaki Terazono , Hirotaka Tsuyoshi , Ryuusuke Tsuyoshi , Katsushi Sakaue
IPC分类号： H03H3/02 , H01L41/08 , H02N2/00 , B41J2/045
CPC分类号： F02M51/0603 , H01L41/0471 , H01L41/0477 , H01L41/1876 , H01L41/273 , Y10T29/42
摘要： A laminated piezoelectric device obtained by alternately laminating the piezoelectric layers containing Pb and the conducting layers containing palladium as a conducting component, wherein the piezoelectric layer formed between the two conducting layers has layer regions where Pb and Pd are mixed together in the interfacial portions thereof relative to the conducting layers, the layer regions having a thickness of not larger than 3% of the thickness of the piezoelectric layer. The laminated piezoelectric device is formed by co-firing the Pb-containing piezoelectric layers and the palladium (Pd)-containing layers, the piezoelectric layers therein having a large insulation resistance and good piezoelectric characteristics.
摘要翻译：通过交替层叠含有Pb的压电层和含有钯的导电层作为导电成分而获得的叠层压电元件，其中形成在两个导电层之间的压电层具有其相互界面部分中Pb和Pd混合在一起的层区域对于导电层，层区域的厚度不大于压电层的厚度的3％。叠层压电元件通过共烧烧含有Pb的压电层和含钯（Pd）的层，其中具有绝缘电阻大的压电层和良好的压电特性而形成。

9. 发明授权

US07902726B2 Multi-layer piezoelectric device 有权
标题翻译：多层压电器件
公开(公告)号：US07902726B2
公开(公告)日：2011-03-08
申请号：US12191168
申请日：2008-08-13
申请人： Takeshi Okamura , Katsushi Sakaue , Mitsuo Kondo
发明人： Takeshi Okamura , Katsushi Sakaue , Mitsuo Kondo
IPC分类号： H01L41/08
CPC分类号： H01L41/1876 , F02M51/0603 , F02M61/167 , H01L41/0471 , H01L41/0472 , H01L41/0477
摘要： To provide a multi-layer piezoelectric device having excellent durability in which the amount of displacement does not change even when the piezoelectric actuator is subjected to continuous operation over a long period of time under a high voltage and a high pressure, the multi-layer piezoelectric device comprises a stack formed by stacking piezoelectric layers and internal electrodes alternately one on another and external electrodes formed on a first side face and on a second side face of the stack, wherein one of the adjacent internal electrodes is connected to the external electrode formed on the first side face and the other internal electrode is connected to the external electrode formed on the second side face, while content of alkali metal in a range from 5 ppm to 300 ppm is contained.
摘要翻译：为了提供即使在压电致动器在高电压和高压下长时间连续操作的情况下，位移量也不会改变的耐久性优异的层叠型压电元件，则层叠型压电体器件包括通过将压电层和内部电极彼此交替堆叠而形成的堆叠和形成在堆叠的第一侧面和第二侧面上的外部电极，其中相邻的内部电极中的一个连接到形成在第一侧面和另一个内部电极连接到形成在第二侧面上的外部电极，同时含有5ppm至300ppm范围内的碱金属含量。

10. 发明授权

US07679272B2 Multi-layer piezoelectric element 有权
标题翻译：多层压电元件
公开(公告)号：US07679272B2
公开(公告)日：2010-03-16
申请号：US10573339
申请日：2004-09-22
申请人： Takeshi Okamura , Katsushi Sakaue , Mitsuo Kondo
发明人： Takeshi Okamura , Katsushi Sakaue , Mitsuo Kondo
IPC分类号： H01L41/08
CPC分类号： H01L41/1876 , F02M51/0603 , F02M61/167 , H01L41/0471 , H01L41/0472 , H01L41/0477
摘要： To provide a multi-layer piezoelectric device having excellent durability in which the amount of displacement does not change even when the piezoelectric actuator is subjected to continuous operation over a long period of time under a high voltage and a high pressure, the multi-layer piezoelectric device comprises a stack formed by stacking piezoelectric layers and internal electrodes alternately one on another and external electrodes formed on a first side face and on a second side face of the stack, wherein one of the adjacent internal electrodes is connected to the external electrode formed on the first side face and the other internal electrode is connected to the external electrode formed on the second side face, while content of alkali metal in a range from 5 ppm to 300 ppm is contained.
摘要翻译：为了提供即使在压电致动器在高电压和高压下长时间连续操作的情况下，位移量也不会改变的耐久性优异的层叠型压电元件，则层叠型压电体器件包括通过将压电层和内部电极彼此交替堆叠而形成的堆叠和形成在堆叠的第一侧面和第二侧面上的外部电极，其中相邻的内部电极中的一个连接到形成在其上的外部电极第一侧面和另一个内部电极连接到形成在第二侧面上的外部电极，同时含有5ppm至300ppm范围内的碱金属含量。

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