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1. 发明授权

US07518295B2 Multilayer piezoelectric element 有权
标题翻译：多层压电元件
公开(公告)号：US07518295B2
公开(公告)日：2009-04-14
申请号：US11907904
申请日：2007-10-18
申请人： Kazuo Mochizuki , Kazuo Nagata , Yuzo Sawara
发明人： Kazuo Mochizuki , Kazuo Nagata , Yuzo Sawara
IPC分类号： H01L41/083
CPC分类号： H01L41/0471 , H01L41/0472 , H01L41/0838
摘要： A multilayer piezoelectric element has a laminate body in which a plurality of piezoelectric bodies and a plurality of internal electrodes are alternately laminated and sintered. The plurality of internal electrodes comprise a first electrode and a second electrode. The laminate body is provided with a metal oxide layer formed of a material with a melting point higher than a sintering temperature of the piezoelectric bodies. The laminate body has an active portion in which the first electrode and the second electrode are arranged to overlap in a laminate direction of the laminate body, and inactive portions in which the first electrode and the second electrode are arranged not to overlap in the laminate direction of the laminate body. The inactive portions are provided on both sides of the active portion. The metal oxide layer has a first region formed in the same layer as the internal electrode in the inactive portion, and a second region formed so as to extend from the first region toward the active portion and overlap the internal electrode.
摘要翻译：多层压电元件具有交替层叠并烧结多个压电体和多个内部电极的层叠体。多个内部电极包括第一电极和第二电极。层叠体设置有由熔点高于压电体的烧结温度的材料形成的金属氧化物层。层压体具有活性部分，其中第一电极和第二电极布置成在层叠体的层叠方向上重叠，并且其中第一电极和第二电极布置成在层叠方向上不重叠的非活性部分的层压体。非活动部分设置在活动部分的两侧。金属氧化物层具有与非活性部分中的内部电极形成在同一层中的第一区域和形成为从第一区域朝向有源部分延伸并与内部电极重叠的第二区域。

2. 发明申请

US20080136293A1 Multilayer piezoelectric element 有权
标题翻译：多层压电元件
公开(公告)号：US20080136293A1
公开(公告)日：2008-06-12
申请号：US11907904
申请日：2007-10-18
申请人： Kazuo Mochizuki , Kazuo Nagata , Yuzo Sawara
发明人： Kazuo Mochizuki , Kazuo Nagata , Yuzo Sawara
IPC分类号： H01L41/083 , H01L41/187
CPC分类号： H01L41/0471 , H01L41/0472 , H01L41/0838
摘要： A multilayer piezoelectric element has a laminate body in which a plurality of piezoelectric bodies and a plurality of internal electrodes are alternately laminated and sintered. The plurality of internal electrodes comprise a first electrode and a second electrode. The laminate body is provided with a metal oxide layer formed of a material with a melting point higher than a sintering temperature of the piezoelectric bodies. The laminate body has an active portion in which the first electrode and the second electrode are arranged to overlap in a laminate direction of the laminate body, and inactive portions in which the first electrode and the second electrode are arranged not to overlap in the laminate direction of the laminate body. The inactive portions are provided on both sides of the active portion. The metal oxide layer has a first region formed in the same layer as the internal electrode in the inactive portion, and a second region formed so as to extend from the first region toward the active portion and overlap the internal electrode.
摘要翻译：多层压电元件具有交替层叠并烧结多个压电体和多个内部电极的层叠体。多个内部电极包括第一电极和第二电极。层叠体设置有由熔点高于压电体的烧结温度的材料形成的金属氧化物层。层压体具有活性部分，其中第一电极和第二电极在层叠体的层叠方向上重叠，并且其中第一电极和第二电极在层叠方向上不重叠的非活性部分的层压体。非活动部分设置在活动部分的两侧。金属氧化物层具有与非活性部分中的内部电极形成在同一层中的第一区域和形成为从第一区域朝向有效部分延伸并与内部电极重叠的第二区域。

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