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11. 发明专利

JP2006005314A Multilayer piezoelectric element and injector using the same 审中-公开
标题翻译：多层压电元件和使用它的注射器
公开(公告)号：JP2006005314A
公开(公告)日：2006-01-05
申请号：JP2004182893
申请日：2004-06-21
申请人： Denso Corp , 株式会社デンソー
发明人： UTAKA YUKINORI , FUJII AKIRA
IPC分类号： H01L41/083 , F02M51/00 , F02M51/06 , H01L41/187 , H01L41/22 , H01L41/27 , H01L41/293 , H02N2/00
CPC分类号： H01L41/0472 , H01L41/083 , H01L41/0833
摘要： PROBLEM TO BE SOLVED: To provide a multilayer piezoelectric element which has good electrical continuity between side electrodes and internal electrodes, and to provide an injector using the multilayer piezoelectric element. SOLUTION: A multilayer piezoelectric element 1 has a ceramic laminate 10 with alternating piezoelectric layers 11 made of a piezoelectric material and layered internal electrodes 21 and 22 having conductivity. Side faces 101 and 102 of the ceramic laminate 10 are provided with a first side electrode 31 and a second side electrode 32 respectively. The internal electrodes 21 and 22 consist of alternating first internal electrodes having electrical continuity to the first side electrode 31 and second internal electrodes having electrical continuity to the second side electrode 32. Each of the side electrodes 31 and 32 is made of a conductive adhesive having conductive particles suspended in a resin material with adhesiveness. The conductive particles have an average particle diameter which is smaller than the thickness of each internal electrode in the laminating direction and is between or equal to 1 nm and 100 nm. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种在侧面电极和内部电极之间具有良好的导通性的多层压电元件，并提供使用该多层压电元件的注入器。解决方案：多层压电元件1具有陶瓷层叠体10，其具有由压电材料制成的交替压电层11和具有导电性的分层内部电极21和22。陶瓷层压体10的侧面101和102分别设置有第一侧电极31和第二侧电极32。内部电极21和22由具有与第一侧面电极31导通的交替的第一内部电极和与第二侧面电极32具有导通性的第二内部电极组成。每个侧面电极31和32由导电粘合剂制成，悬浮在具有粘合性的树脂材料中的导电颗粒。导电性粒子的平均粒径小于层叠方向的内部电极的厚度，在1nm〜100nm的范围内。版权所有（C）2006，JPO＆NCIPI

12. 发明专利

JP2006005172A Manufacturing method of laminated dielectric element 审中-公开
标题翻译：层压电介质元件的制造方法
公开(公告)号：JP2006005172A
公开(公告)日：2006-01-05
申请号：JP2004180205
申请日：2004-06-17
申请人： Denso Corp , Nippon Soken Inc , 株式会社デンソー , 株式会社日本自動車部品総合研究所
发明人： SUMIYA ATSUHIRO , YASUDA ETSURO , SUZUKI YASUNORI , SAISHO TETSUYOSHI , FUJII AKIRA
IPC分类号： C04B35/64 , H01G4/12 , H01G4/30 , H01G13/00 , H01L41/083 , H01L41/187 , H01L41/22 , H01L41/39
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method of a laminated dielectric element wherein the faultiness of its delamination, its crack, and its deformation, etc. are scarcely generated, and the laminated dielectric element of a high quality can be manufactured.
SOLUTION: The manufacturing method manufactures a laminated dielectric element 1 wherein dielectric ceramic layers 12 containing lead in their compositions and base-metal electrode layers 13 made of a base metal are laminated alternately. The manufacturing method performs an electrode printing process, a compressive bonding process, a degreasing process, and a baking process. In the electrode printing process, a paste material for the base-metal electrode is applied to each ceramic green sheet made of each ceramic material molded in the form of a sheet. In the compressive bonding process, the ceramic green sheets are so laminated mutually and are so bonded compressively to each other as to create a laminate. In the degreasing process, the laminate is heated in a heating furnace under the flow-through of the atmospheric gas containing a water vapor and inert gases. In the baking process, the laminate is baked. Also, in the degreasing process, the metal ions are fed for promoting the decompositions of organic matters.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供几乎不产生其分层错误，裂纹及其变形等的叠层电介质的制造方法，并且可以制造高质量的叠层电介质元件。解决方案：制造方法制造层压电介质元件1，其中在其组成中含有铅的电介质陶瓷层12和由贱金属制成的贱金属电极层13交替层叠。制造方法进行电极印刷工艺，压接工艺，脱脂处理和烘烤处理。在电极印刷方法中，将用于基底金属电极的糊料施加到由片状模制的每个陶瓷材料制成的每个陶瓷生片上。在压接工艺中，陶瓷生片相互层叠，并相互压合，形成层叠体。在脱脂过程中，层叠体在加热炉内在含有水蒸气和惰性气体的气氛气体的流通下被加热。在烘烤过程中，层压体被烘烤。此外，在脱脂处理中，为了促进有机物的分解，供给金属离子。版权所有（C）2006，JPO＆NCIPI

13. 发明专利

JP2005142222A Stacked dielectric element and its manufacturing method 有权
标题翻译：堆叠式电介质元件及其制造方法
公开(公告)号：JP2005142222A
公开(公告)日：2005-06-02
申请号：JP2003374630
申请日：2003-11-04
申请人： Denso Corp , Nippon Soken Inc , 株式会社デンソー , 株式会社日本自動車部品総合研究所
发明人： SUMIYA ATSUHIRO , SHINDO HITOSHI , YASUDA ETSURO , FUJII AKIRA , YAMAMOTO TAKASHI , NAGAYA TOSHIATSU , SAWAGUCHI HISAMI , KAI AKISATO
IPC分类号： C04B35/46 , C04B35/472 , C04B35/49 , C04B35/491 , H01G4/12 , H01L41/083 , H01L41/187 , H01L41/22 , H01L41/273 , H01L41/297 , H01L41/39 , H01L41/24
摘要： PROBLEM TO BE SOLVED: To provide a stacked dielectric element of high quality which is free from delamination, and to provide its manufacturing method. SOLUTION: The manufacturing method manufactures a stacked dielectric element 1 in which a dielectric ceramic layer 12 and a base metal electrode layer 13 are laminated alternately, and is provided with an electrode printing process for applying paster material for base metal electrode to at least one surface of the ceramic green sheet; a crimping process for laminating the ceramic green sheets, sticking them by pressure, and producing lamination; a cleaning process for degreasing the lamination; an electrode reduce process for heating the lamination under circulation of controlled atmosphere, reducing the paste material for base metal electrode, and obtaining the base metal electrode layer; and a calcination process for calcinating the lamination. In the electrode reduce process, the paste material for base metal electrode is reduced in such a manner that the amount of survival of base metal oxide contained in the base metal electrode layer is at most 20 wt%, and the amount of material isolated from the ceramic material becomes at most 30 atomic% from a surface of base material electrode layer in at most 5000 Å. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种高质量的层叠电介质元件，其不会发生分层，并提供其制造方法。解决方案：制造方法制造其中电介质陶瓷层12和贱金属电极层13交替层叠的叠层电介质元件1，并且设置有用于将贱金属电极的贴片材料施加到电极印刷工艺陶瓷生片的至少一个表面; 用于层压陶瓷生片的压接方法，通过压力粘贴它们并产生层压; 清洗层压脱脂方法; 用于在受控气氛的循环下加热层压的电极减少工艺，减少贱金属电极的糊料，并获得贱金属电极层; 和用于煅烧层压的煅烧过程。在电极还原过程中，用于贱金属电极的糊剂材料以使得贱金属电极层中所含的贱金属氧化物的存活量为至多20重量％的方式进行还原，陶瓷材料从基材电极层的表面变为至多30原子％以下。版权所有（C）2005，JPO＆NCIPI

14. 发明专利

JP2005005680A Piezoelectric actuator 审中-公开
标题翻译：压电致动器
公开(公告)号：JP2005005680A
公开(公告)日：2005-01-06
申请号：JP2004122214
申请日：2004-04-16
申请人： Denso Corp , 株式会社デンソー
发明人： KOBAYASHI MASAYUKI , KAWAZOE NAOYUKI , FUJII AKIRA
IPC分类号： F02M51/06 , H01L41/047 , H01L41/083 , H01L41/187 , H01L41/22 , H01L41/297 , H02N2/00
CPC分类号： H01L41/0472 , F02M51/0603 , H01L41/083 , H01L41/0833 , H01L41/25
摘要： PROBLEM TO BE SOLVED: To provide a piezoelectric actuator which is suitable for injector etc. and excellent in durability and stable in its characteristics. SOLUTION: The piezoelectric actuator 1 comprises a piezoelectric device unit 15 in which a ceramic layer 151 and internal electrode layers 153 and 154 are accumulated. The piezoelectric device unit 15 is formed by accumulating more than 50 layers of the piezoelectric ceramic layer 151. It includes a pair of external electrodes 5 and 6 of different potential on its sides. The internal electrodes 153 and 154, having electrode exposed parts 158 and 159 that are exposed in sides of the piezoelectric device unit 15, are connected to one of the pair of external electrodes 5 and 6 through these exposed parts and alternated their counterparts every layer. In the periphery of the internal electrode layers 153 and 154, recessed parts 155 in which these layers are recessed from the side of the piezoelectric device unit 15 are partially formed. The minimum width L of the recessed part 155 and its error W satisfy 0.1mm≤L≤1.0mm, W≤0.5mm. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种适用于喷射器等并且耐久性优异并且其特性稳定的压电致动器。解决方案：压电致动器1包括其中堆积有陶瓷层151和内部电极层153和154的压电器件单元15。压电器件单元15通过累积超过50层的压电陶瓷层151而形成。它包括在其侧面上具有不同电位的一对外部电极5和6。具有暴露在压电元件单元15的侧面的电极暴露部分158和159的内部电极153和154通过这些暴露部分连接到一对外部电极5和6中的一个，并且每层交替对置。在内部电极层153,154的周边部分地形成有这些层从压电元件单元15侧凹入的凹部155。凹部155的最小宽度L及其误差W满足0.1mm≤L≤1.0mm，W≤0.5mm。版权所有（C）2005，JPO＆NCIPI

15. 发明专利

JP2009200358A Laminated piezoelectric element 审中-公开
标题翻译：层压压电元件
公开(公告)号：JP2009200358A
公开(公告)日：2009-09-03
申请号：JP2008042104
申请日：2008-02-22
申请人： Denso Corp , 株式会社デンソー
发明人： FUJII AKIRA , IWASE AKIO , KADOTANI SHIGERU
IPC分类号： H01L41/083 , C04B35/49 , C04B35/491 , H01L41/187 , H01L41/22 , H01L41/27 , H01L41/293 , H01L41/297 , H01L41/39
摘要： PROBLEM TO BE SOLVED: To provide a laminated piezoelectric element which can prevent the occurrence of breakdowns, without hardly impairing the displacement performance. SOLUTION: The laminated piezoelectric element 1 is provided with a ceramic laminate 19, which is formed by alternately stacking a plurality of piezoelectric ceramic layers 2 and a plurality of internal electrode layers 3, 4, and a pair of side electrodes 11 and 12 formed on their outer circumferential surfaces 195. An insulation reinforced layer 25, which is higher in insulation resistance than that of the piezoelectric ceramic layer 2, is formed along a boundary 315 between first internal electrodes 311 and 411 and first reserved portions 321 and 421 and/or boundaries 315 and 415, between a second internal electrode and a second reserved portion, in first adjacent electrode layers 35 and 45 and/or the second adjacent electrode layer. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种可以防止发生故障的层压型压电元件，而不会很难损害位移性能。解决方案：层叠压电元件1设置有陶瓷层压体19，其通过交替地堆叠多个压电陶瓷层2和多个内部电极层3,4以及一对侧面电极11和形成在其外周面195上的绝缘增强层25的绝缘电阻高于压电陶瓷层2的绝缘强度层25沿着第一内部电极311和411与第一保留部321和421之间的边界315形成和/或边界315和415，位于第二相邻电极层35和45和/或第二相邻电极层之间的第二内部电极和第二预留部分之间。版权所有（C）2009，JPO＆INPIT

16. 发明专利

JP2005235862A Piezoelectric stack and manufacturing method thereof 审中-公开
标题翻译：压电堆及其制造方法
公开(公告)号：JP2005235862A
公开(公告)日：2005-09-02
申请号：JP2004040440
申请日：2004-02-17
申请人： Denso Corp , 株式会社デンソー
发明人： KOBANE YOICHI , FUJII AKIRA
IPC分类号： H01L41/083 , H01L41/18 , H01L41/187 , H01L41/22 , H01L41/39 , H01L41/43 , H02N2/00 , H01L41/24
CPC分类号： H01L41/273 , H01L41/083 , H01L41/1876
摘要： PROBLEM TO BE SOLVED: To provide a reliable piezoelectric stack whose performance cannot deteriorate easily, and to provide a method for manufacturing the piezoelectric stack. SOLUTION: Piezoelectric layers 111, 112 made of PZT (lead zirconate titanate) and internal electrode layers 121, 122 are alternately laminated. In the crystal grain boundary of the piezoelectric layers 111, 112, a grain boundary fill factor by Pb-W-based glass and/or Pb-Mo-based glass is 95% or higher. Raw material powder for piezoelectric layers containing a W-based grain boundary fill additive and/or Mo-based grain boundary fill additive is manufactured, a non-burned sheet for piezoelectric sheets is manufactured from raw material powder for the piezoelectric layer, conductive paste for internal electrode layers is printed and laminated on the non-burned sheet for piezoelectric layers for manufacturing the non-burned laminate. The non-burned laminate is baked into the crystal grain boundary of the piezoelectric layers 111, 112 so that Pb-W-based glass and/or Pb-Mo-based glass is deposited and the grain boundary fill factor becomes 95% or higher. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种性能不容易劣化的可靠的压电叠层，并提供一种制造压电叠层的方法。解决方案：由PZT（锆钛酸铅）和内部电极层121,122制成的压电层111,112交替层压。在压电体层111,112的晶界中，Pb-W系玻璃和/或Pb-Mo系玻璃的晶界填充率为95％以上。制造含有W基晶界填充添加剂和/或Mo系晶界填充添加剂的压电体用原料粉末，由压电体用原料粉末制造压电片用非烧成片，将内部电极层印刷并层压在用于制造未烧制层压体的压电层的未燃烧片材上。将未烧制的层压体烘烤成压电体层111,112的晶界，从而沉积Pb-W系玻璃和/或Pb-Mo系玻璃，晶界填充率为95％以上。版权所有（C）2005，JPO＆NCIPI

17. 发明专利

JP2004297041A Laminated piezoelectric element 审中-公开
公开(公告)号：JP2004297041A
公开(公告)日：2004-10-21
申请号：JP2004013412
申请日：2004-01-21
申请人： Denso Corp , 株式会社デンソー
发明人： SATO KAZUHIDE , FUJII AKIRA , OKAMOTO SHINICHI
IPC分类号： F02M51/00 , F02M51/06 , H01L41/083 , H01L41/187 , H01L41/22 , H01L41/297 , H02N2/00
CPC分类号： H01L41/0833 , H01L41/0838
摘要： PROBLEM TO BE SOLVED: To provide a laminated piezoelectric element which is enhanced in the reliability of the insulation structure between internal electrode layers and side electrodes. SOLUTION: On a side face 101 with a first side electrode 31, a first recessed groove 41 in which ends of a second internal electrode 22 is exposed at bottoms 410 is formed. While, on a side face 102 with a second side electrode 32, a second recessed groove 42 in which ends of a first internal electrode 21 is exposed is formed. In the first groove 41 and the second groove 42, an insulation filler 5 having an electrical insulation property is filled so that it covers the ends of the second internal electrode 21 and the first internal electrode 21, respectively. The insulation filler 5 is composed of an insulation resin 50 having an electrical insulation property and inorganic particles 51 of an inorganic material contained in the insulation resin 50. COPYRIGHT: (C)2005,JPO&NCIPI

18. 发明专利

JP2009206109A Laminated piezoelectric element 有权
标题翻译：层压压电元件
公开(公告)号：JP2009206109A
公开(公告)日：2009-09-10
申请号：JP2008042111
申请日：2008-02-22
申请人： Denso Corp , 株式会社デンソー
发明人： SUZUKI SOJI , MURAI ATSUSHI , ASANO HIROAKI , NODA KOSHI , NAGAYA TOSHIATSU , FUJII AKIRA , IWASE AKIO , KADOTANI SHIGERU
IPC分类号： H01L41/083 , H01L41/187 , H01L41/22 , H01L41/27 , H01L41/293 , H01L41/297 , H01L41/39
CPC分类号： H01L41/0838 , F02M63/0026 , H01L41/273
摘要： PROBLEM TO BE SOLVED: To provide a laminated piezoelectric element which has superior durability by more surely preventing a degradation in the insulation resistance while almost not impairing displacement performance. SOLUTION: The laminated piezoelectric element 1 includes a ceramic laminated body 15 wherein piezoelectric ceramic layers 10 and internal electrode layers 13, 14 are alternately laminated; and a pair of side surface electrodes 17. The internal electrode layers 13, 14 are provided with internal electrode sections 131, 141 and margin sections 132, 142. The ceramic laminated body 15 includes stress relaxing sections 11, 12. Among the margin sections 132, 142 of the internal electrode layers 13, 14 that sandwich the stress relaxing sections 11, 12, margin distances of the margin sections 132, 142 positioned on the same side surface of the stress relaxing sections 11, 12 are longer than the depths of the stress relaxing sections 11, 12. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种具有优异的耐久性的叠层压电元件，其更可靠地防止绝缘电阻的劣化，同时几乎不损害位移性能。解决方案：层叠压电元件1包括陶瓷层叠体15，其中压电陶瓷层10和内部电极层13,14交替层叠; 和一对侧面电极17.内部电极层13,14设置有内部电极部分131,141和边缘部分132,142。陶瓷层叠体15包括应力缓和部分11,12。在边缘部分132 夹着应力缓和部11,12的内部电极层13,14的142，位于应力缓和部11,12的同一侧面的边缘部132,142的边缘距离比所述应力缓和部11,12的深度长压力放松部分11,12。版权所有（C）2009，JPO＆INPIT

19. 发明专利

JP2009182311A Laminated piezoelectric element and method of manufacturing the same 审中-公开
标题翻译：层叠压电元件及其制造方法
公开(公告)号：JP2009182311A
公开(公告)日：2009-08-13
申请号：JP2008022891
申请日：2008-02-01
申请人： Denso Corp , 株式会社デンソー
发明人： KADOTANI SHIGERU , IWASE AKIO , FUJII AKIRA
IPC分类号： H01L41/083 , H01L41/187 , H01L41/22 , H01L41/27 , H01L41/273 , H01L41/293 , H01L41/297 , H02N2/00
摘要： PROBLEM TO BE SOLVED: To provide a laminated piezoelectric element having a structure excellent in durability and reliability, and to provide a method of manufacturing the same. SOLUTION: The laminated piezoelectric element 1 has a ceramic laminated body 10 constituted by alternately laminating a piezoelectric ceramic layer 11 and an internal electrode layer 20, and a pair of external electrodes 33 provided on the side faces 101 and 102 of the ceramic laminated body 10. The ceramic laminated body 10 has a drive part 108 which is a region where the entire internal electrode layers 20 are overlapped when seen through in a laminating direction and a non-drive part 109 which is a region where only some of the internal electrode layers 20 are overlapped. The internal electrode layer 20 has a drive internal electrode part 21 present in the drive part 108 and a non-driven internal electrode part 22 present in the non-drive part 109. The non-drive internal electrode part 22 has a slit part 29 consisting of a gap in the inside and presents a double structure through the slit part 29, and the slit part 29 is formed so as to be exposed to the outer peripheral surface 103 of the ceramic laminated body 10. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供具有耐久性和可靠性优异的结构的层叠型压电元件，并提供其制造方法。解决方案：层叠压电元件1具有通过交替层叠压电陶瓷层11和内部电极层20而构成的陶瓷层叠体10和设置在陶瓷的侧面101和102上的一对外部电极33 陶瓷层叠体10具有驱动部108，驱动部108是在层叠方向上观察时整体内部电极层20重叠的区域和非驱动部109，非驱动部109是仅一部分内部电极层20重叠。内部电极层20具有存在于驱动部分108中的驱动内部电极部分21和存在于非驱动部分109中的非驱动内部电极部分22.非驱动内部电极部分22具有狭缝部分29，通过狭缝部分29形成双重结构，并且狭缝部分29形成为暴露于陶瓷层叠体10的外周表面103。版权所有（C） 2009年，JPO＆INPIT

20. 发明专利

JP2006049813A Laminated piezo-electric element and injector using the same 有权
标题翻译：层压式电动元件和使用其的注射器
公开(公告)号：JP2006049813A
公开(公告)日：2006-02-16
申请号：JP2005084211
申请日：2005-03-23
申请人： Denso Corp , 株式会社デンソー
发明人： OKAMOTO SHINICHI , FUJII AKIRA
IPC分类号： H01L41/083 , F02M51/06 , H01L41/187 , H01L41/22 , H01L41/27 , H01L41/293 , H01L41/297 , H01L41/39 , H02N2/00
CPC分类号： H01L41/083 , H01L41/0471 , H01L41/0472 , H01L41/0833
摘要： PROBLEM TO BE SOLVED: To provide a laminated piezo-electric element whose reliability of insulating structure and excellent piezo-electric performance are compatible. SOLUTION: The laminated piezo-electric element has a ceramic laminated body 10 where a piezo-electric layer 11 and inside electrodes 21, 22 are laminated alternately and where a first side electrode 31 and a second side electrode 32 are located on the sides 101, 102 of the ceramic laminated body 10. Recess channels 41(42), where the ends of the inside electrodes 21(22) are exposed in bottoms 410(420), are located on the sides 101(102) with the side electrodes 31(32) located. Insulating filler materials 5 having electric insulation are filled into the recess channel 41(42) covering the ends of the inside electrodes 21(22). The insulating filler materials 5 have values(coefficient of linear expansion×elastic modulus) of 100 Pa/°C to 15,000 Pa/°C. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种层压压电元件，其绝缘结构的可靠性和优异的压电性能是兼容的。解决方案：层叠压电元件具有陶瓷层叠体10，其中压电层11和内部电极21,22交替层叠，并且第一侧电极31和第二侧电极32位于陶瓷层叠体10的侧面101,102。内侧电极21（22）的端部露出在底部410（420）中的凹部通道41（42）位于侧面101（102）上，侧面电极31（32）。具有电绝缘性的绝缘填充材料5填充到覆盖内侧电极21（22）的端部的凹槽41（42）中。绝缘填充材料5具有100Pa /℃至15,000Pa /℃的值（线性膨胀系数×弹性模量）。版权所有（C）2006，JPO＆NCIPI

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