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    • 1. 发明申请
    • Laminated-type piezoelectric element
    • 层压型压电元件
    • US20060232172A1
    • 2006-10-19
    • US11405493
    • 2006-04-18
    • Hiroaki AsanoHidekazu HattoriYoichi Kobane
    • Hiroaki AsanoHidekazu HattoriYoichi Kobane
    • H01L41/083
    • H01L41/0472F02M51/005F02M51/0603
    • A laminated-type piezoelectric element 1 is provided, which comprises a first external electrode layer 33, which is located at a side area of the laminated-type piezoelectric element 1, is electrically continuous to internal electrode layers 21, and comprises plural expansible and contractible opening portions 33a in a stacking direction of the laminated-type piezoelectric element 1. As the first external electrode layer 33 is connected to the laminated-type piezoelectric element 1 with an electrically conductive adhesive member 32 and the electrically conductive adhesive member 32 is narrower than the first external electrode layer 33, the electrically conductive adhesive member 32 penetrates into the opening portions 33a of the first external electrode layer 33 to form connections in a shape of an anchor. Therefore, the first external electrode layer 33 is firmly connected to the laminated-type piezoelectric element 1.
    • 设置层压型压电元件1,其包括位于层叠型压电元件1的侧面区域的第一外部电极层33与内部电极层21电连接,并且包括多个可膨胀和收缩的 层叠型压电元件1的层叠方向的开口部33a。 由于第一外部电极层33与导电性粘合部件32连接到层叠型压电元件1,导电性粘接部件32比第一外部电极层33窄,所以导电性粘接部件32贯通到 第一外部电极层33的开口部分33a以形成锚固件的连接。 因此,第一外部电极层33牢固地连接到层叠型压电元件1。
    • 3. 发明授权
    • Multilayer piezoelectric element
    • 多层压电元件
    • US07429817B2
    • 2008-09-30
    • US11822014
    • 2007-06-29
    • Hiroaki AsanoYoichi Kobane
    • Hiroaki AsanoYoichi Kobane
    • H01L41/047
    • H01L41/0472
    • A multilayer piezoelectric element has a pair of outer electrodes and a multilayer ceramic body composed of piezoelectric layers and inner electrode layers which are alternately stacked. The outer electrodes are formed on a pair of electrode connecting surfaces in the outer circumference surfaces of the multilayer ceramic body. Each outer electrode electrically connected to the inner electrode layers through connecting material is composed of a fixed part, a free part having plural expandable-openings, and a rigid part. The fixed part is electrically contacted with the connection material. A sectional area of the rigid part is rather than that of each of the fixed part and the free part in a width direction of the outer electrode. Each outer electrode has at least one part where the fixed part, the free part and the rigid part are arranged in order in the width direction.
    • 多层压电元件具有一对外电极和由交替堆叠的压电层和内电极层构成的多层陶瓷体。 外电极形成在多层陶瓷体的外周面的一对电极连接面上。 通过连接材料电连接到内部电极层的每个外部电极由固定部分,具有多个可扩张开口的自由部分和刚性部分组成。 固定部分与连接材料电接触。 刚性部分的截面积不是外部电极的宽度方向上的固定部分和自由部分的截面面积。 每个外电极具有固定部分,自由部分和刚性部分在宽度方向上依次布置的至少一个部分。
    • 5. 发明授权
    • Laminated-type piezoelectric element
    • 层压型压电元件
    • US07439655B2
    • 2008-10-21
    • US11405493
    • 2006-04-18
    • Hiroaki AsanoHidekazu HattoriYoichi Kobane
    • Hiroaki AsanoHidekazu HattoriYoichi Kobane
    • H01L41/08
    • H01L41/0472F02M51/005F02M51/0603
    • A laminated-type piezoelectric element 1 is provided, which comprises a first external electrode layer 33, which is located at a side area of the laminated-type piezoelectric element 1, is electrically continuous to internal electrode layers 21, and comprises plural expansible and contractible opening portions 33a in a stacking direction of the laminated-type piezoelectric element 1. As the first external electrode layer 33 is connected to the laminated-type piezoelectric element 1 with an electrically conductive adhesive member 32 and the electrically conductive adhesive member 32 is narrower than the first external electrode layer 33, the electrically conductive adhesive member 32 penetrates into the opening portions 33a of the first external electrode layer 33 to form connections in a shape of an anchor. Therefore, the first external electrode layer 33 is firmly connected to the laminated-type piezoelectric element 1.
    • 设置层压型压电元件1,其包括位于层叠型压电元件1的侧面区域的第一外部电极层33与内部电极层21电连接,并且包括多个可膨胀和收缩的 层叠型压电元件1的层叠方向的开口部33a。 由于第一外部电极层33与导电性粘合部件32连接到层叠型压电元件1,导电性粘接部件32比第一外部电极层33窄,所以导电性粘接部件32贯通到 第一外部电极层33的开口部分33a以形成锚固件的连接。 因此,第一外部电极层33牢固地连接到层叠型压电元件1。
    • 6. 发明申请
    • Laminated piezoelectric element
    • 层叠压电元件
    • US20060232173A1
    • 2006-10-19
    • US11405520
    • 2006-04-18
    • Yoichi KobaneHiroaki AsanoHidekazu Hattori
    • Yoichi KobaneHiroaki AsanoHidekazu Hattori
    • H01L41/083
    • H01L41/083F02M47/027F02M51/005F02M51/0603H01L41/0472H01L41/0833H01L41/25
    • A laminated piezoelectric element (1) comprises a laminated piezoelectric element (1) piezoelectric layers (11) composed of a ceramic capable of expanding and contracting upon application of a voltage, and internal electrode layers (21a and 21b) that supply voltage to the piezoelectric layers, the internal electrode layers and piezoelectric layers being alternately provided, a first external electrode layer (31) provided on a side of the laminated piezoelectric element (1) and electrically connected with the internal electrode layers (21a and 21b), and a second external electrode layer (32) provided on a side of the laminated piezoelectric element (1) and electrically connected with the internal electrode layers (21a and 21b) via the first external electrode layer (31); wherein, when the maximum width of the laminated piezoelectric element (1) in the direction perpendicular to the direction of lamination is taken to be W0, the width of the first external electrode layer (31) is taken to be W1, and the width of the second external electrode layer (32) is taken to be W2, a relationship exists in which W1>W2 and 2.5≦(W2/W0)×100≦60, and the laminated piezoelectric element (1) has a piezoelectric active section (1a) that expands and contracts when a voltage is applied, and the second external electrode layer (32) is provided continuously in the direction of lamination of the piezoelectric layers (11) in the piezoelectric active section (1a).
    • 叠层压电元件(1)包括层叠压电元件(1)由施加电压时能够伸缩的陶瓷构成的压电层(11),以及供给电压的内部电极层(21a和21b) 交替设置压电层,内部电极层和压电体层,设置在层压型压电元件1的一侧并与内部电极层(21a和21b)电连接的第一外部电极层(31) 以及设置在所述层叠压电元件(1)的一侧并经由所述第一外部电极层(31)与所述内部电极层(21a和21b)电连接的第二外部电极层(32)。 其中,当层压压电元件(1)在垂直于叠层方向的方向上的最大宽度取为W 0时,第一外部电极层(31)的宽度取为W 1, 另外,第二外部电极层(32)的宽度为W 2,存在W 1> W 2和2.5 <=(W 2 / W 0)×100 <= 60的关系,层压型压电元件 )具有在施加电压时膨胀和收缩的压电有源部分(1a),并且第二外部电极层(32)沿着压电层(11)在压电有源部分 1 a)。
    • 8. 发明授权
    • Laminated piezoelectric element
    • 层叠压电元件
    • US07339310B2
    • 2008-03-04
    • US11405520
    • 2006-04-18
    • Yoichi KobaneHiroaki AsanoHidekazu Hattori
    • Yoichi KobaneHiroaki AsanoHidekazu Hattori
    • H01L41/047
    • H01L41/083F02M47/027F02M51/005F02M51/0603H01L41/0472H01L41/0833H01L41/25
    • A laminated piezoelectric element (1) comprises a laminated piezoelectric element (1) piezoelectric layers (11) composed of a ceramic capable of expanding and contracting upon application of a voltage, and internal electrode layers (21a and 21b) that supply voltage to the piezoelectric layers, the internal electrode layers and piezoelectric layers being alternately provided, a first external electrode layer (31) provided on a side of the laminated piezoelectric element (1) and electrically connected with the internal electrode layers (21a and 21b), and a second external electrode layer (32) provided on a side of the laminated piezoelectric element (1) and electrically connected with the internal electrode layers (21a and 21b) via the first ecternal electrode layer wherein there are specific external electrode width relationships.
    • 叠层压电元件(1)包括层叠压电元件(1)由施加电压时能够伸缩的陶瓷构成的压电层(11),以及供给电压的内部电极层(21a和21b) 交替设置压电层,内部电极层和压电体层,设置在层压型压电元件1的一侧并与内部电极层(21a和21b)电连接的第一外部电极层(31) 以及设置在所述层压型压电元件(1)的一侧并且经由所述第一外部电极层与所述内部电极层(21a和21b)电连接的第二外部电极层(32),其中存在特定的外部电极宽度 关系。