公开(公告)号：US07514848B2

公开(公告)日：2009-04-07

申请号：US11059635

申请日：2005-02-17

申请人： Yoichi Kobane ,  Akira Fujii ,  Hideo Kamiya ,  Hiroaki Makino

发明人： Yoichi Kobane ,  Akira Fujii ,  Hideo Kamiya ,  Hiroaki Makino

IPC分类号： H01L41/08

CPC分类号： H01L41/083 ,  F02M63/0026 ,  F02M2200/21 ,  H01L41/1876 ,  H01L41/273

摘要： An object of the present invention is to provide a piezoelectric stack substantially free from deterioration in performance and having high reliability, and a production method thereof. A piezoelectric layer 111, 112 comprising PZT and an internal electrode layer 121, 122 are alternately stacked; the grain boundary-filling factor of a Pb-based glass in the crystal grain boundary of the piezoelectric layer 111, 112 is 95% or more; in producing a piezoelectric stack 1 in which a piezoelectric layer 111, 112 comprising PZT and an internal electrode layer 121, 122 are alternately stacked, unfired sheets for the piezoelectric layer 111, 112 are stacked to produce an unfired stacked body, the unfired sheet containing Pb in excess of the stoichiometric ratio in PZT and having printed thereon an electrically conducting paste for the internal electrode layer 121, 122, and the unfired stacked body is fired in an oxygen atmosphere having an oxygen concentration of 40 to 100 vol % such that the grain boundary-filling factor of a Pb-based glass in the crystal grain boundary inside the piezoelectric layer 111, 112 is 95% or more.

摘要翻译： 本发明的目的是提供一种基本上没有性能劣化并具有高可靠性的压电叠层及其制造方法。 包括PZT和内部电极层121,122的压电层111,112交替堆叠; 压电层111,112的晶粒边界中的Pb基玻璃的晶界填充系数为95％以上; 在制造压电堆叠1中，其中包含PZT的压电层111,112和内部电极层121,122交替堆叠，堆叠用于压电层111,112的未燃烧片材以产生未烧结的堆叠体， Pb超过PZT中的化学计量比并且在其上印刷有用于内部电极层121,122的导电糊料，并且将未烧结的堆叠体在氧浓度为40至100体积％的氧气氛中焙烧，使得 压电层111,112内的晶界的Pb基玻璃的晶界填充率为95％以上。

公开(公告)号：US20050206274A1

公开(公告)日：2005-09-22

申请号：US11059635

申请日：2005-02-17

申请人： Yoichi Kobane ,  Akira Fujii ,  Hideo Kamiya ,  Hiroaki Makino

发明人： Yoichi Kobane ,  Akira Fujii ,  Hideo Kamiya ,  Hiroaki Makino

IPC分类号： F02M51/00 ,  F02M47/02 ,  F02M51/06 ,  F02M63/00 ,  H01L41/083 ,  H01L41/18 ,  H01L41/187 ,  H01L41/22 ,  H01L41/273 ,  H01L41/297 ,  H01L41/39 ,  H02N2/00

CPC分类号： H01L41/083 ,  F02M63/0026 ,  F02M2200/21 ,  H01L41/1876 ,  H01L41/273

摘要： An object of the present invention is to provide a piezoelectric stack substantially free from deterioration in performance and having high reliability, and a production method thereof. A piezoelectric layer 111, 112 comprising PZT and an internal electrode layer 121, 122 are alternately stacked; the grain boundary-filling factor of a Pb-based glass in the crystal grain boundary of the piezoelectric layer 111, 112 is 95% or more; in producing a piezoelectric stack 1 in which a piezoelectric layer 111, 112 comprising PZT and an internal electrode layer 121, 122 are alternately stacked, unfired sheets for the piezoelectric layer 111, 112 stacked to produce an unfired stacked body, the unfired sheet containing Pb in excess of the stoichiometric ratio in PZT and having printed thereon an electrically conducting paste for the internal electrode layer 121, 122, and the unfired stacked body is fired in an oxygen atmosphere having an oxygen concentration of 40 to 100 vol % such that the grain boundary-filling factor of a Pb-based glass in the crystal grain boundary inside the piezoelectric layer 111, 112 is 95% or more.

摘要翻译： 本发明的目的是提供一种基本上没有性能劣化并具有高可靠性的压电叠层及其制造方法。 包括PZT和内部电极层121,122的压电层111,112交替堆叠; 压电层111,112的晶粒边界中的Pb基玻璃的晶界填充系数为95％以上; 在制造压电叠堆1中，其中包含PZT和内部电极层121,122的压电层111,112交替堆叠，堆叠制成未烧结堆叠体的压电层111,112的未烧结片材，未烧结的片材含有Pb 超过PZT中的化学计量比并且在其上印刷有用于内部电极层121,122的导电糊料，并且在氧浓度为40至100体积％的氧气氛中烧制未烧结的堆叠体，使得颗粒 压电层111,112内的晶界的Pb基玻璃的边界填充率为95％以上。

公开(公告)号：US20110240768A1

公开(公告)日：2011-10-06

申请号：US13076795

申请日：2011-03-31

申请人： Fumihiro FUJIKAKE ,  Yoichi Kobane ,  Tsukasa Yamashita

发明人： Fumihiro FUJIKAKE ,  Yoichi Kobane ,  Tsukasa Yamashita

IPC分类号： F02M63/00

CPC分类号： F02M47/027 ,  F02M63/0005 ,  F02M2547/001 ,  F02M2547/008

摘要： In a fuel injection device, a pressure control valve is configured to make communication between an outflow port and a return channel and to interrupt the communication so as to control pressure of a fuel in a pressure control chamber, a valve member is configured to open and close a valve portion in response to the pressure of the fuel in the pressure control chamber, and a pressing member is arranged to be reciprocated and displaced in the pressure control chamber. The pressing member has an outer wall surface portion that is opposite to an inner wall surface portion of the control body to be capable of contacting the inner wall surface portion of the control body, and at least one of the outer wall surface portion of the pressing member and the inner wall surface portion of the control body is provided with a recess portion that is recessed to a side separated from the other one of the outer wall surface portion of the pressing member and the inner wall surface portion of the control body.

摘要翻译： 在燃料喷射装置中，压力控制阀被构造成在流出口和返回通道之间进行连通并且中断通信，以便控制压力控制室中的燃料的压力，阀构件被构造成打开，并且 响应于压力控制室中的燃料的压力关闭阀部分，并且压力构件布置成在压力控制室中往复运动。 按压构件具有与控制体的内壁面部相对的能够与控制体的内壁面部接触的外壁面部，以及压接部的外壁面部中的至少一方 构件和控制体的内壁面部分设置有凹部，该凹部在与按压构件的外壁面部分和控制体的内壁面部分中的另一个分离的一侧凹陷。

公开(公告)号：US20060232173A1

公开(公告)日：2006-10-19

申请号：US11405520

申请日：2006-04-18

申请人： Yoichi Kobane ,  Hiroaki Asano ,  Hidekazu Hattori

发明人： Yoichi Kobane ,  Hiroaki Asano ,  Hidekazu Hattori

IPC分类号： H01L41/083

CPC分类号： H01L41/083 ,  F02M47/027 ,  F02M51/005 ,  F02M51/0603 ,  H01L41/0472 ,  H01L41/0833 ,  H01L41/25

摘要： 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).

摘要翻译： 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）。

公开(公告)号：US07567020B2

公开(公告)日：2009-07-28

申请号：US12043473

申请日：2008-03-06

申请人： Shinichi Okamoto ,  Hiroaki Asano ,  Yoichi Kobane

发明人： Shinichi Okamoto ,  Hiroaki Asano ,  Yoichi Kobane

IPC分类号： H01L41/08

CPC分类号： F02M63/0026 ,  F02M47/027 ,  H01L41/0833 ,  H01L41/0838 ,  H01L41/313 ,  Y10T428/265

摘要： A laminated piezoelectric element according to the present invention includes a plurality of unit laminates and a plurality of adhesive layers. The unit laminates are stacked together. Each of the unit laminates includes a plurality of piezoelectric ceramic layers and a plurality of internal electrode layers that are alternately laminated with the piezoelectric ceramic layers in the lamination direction of the unit laminate. Each of the adhesive layers is formed between adjacent two of the unit laminates to bond the two unit laminates together. Further, each of the adhesive layers has a thickness of 1 μm or less and an adhesive strength of 1.3 MPa or higher.

摘要翻译： 根据本发明的叠层压电元件包括​​多个单元层叠体和多个粘合剂层。 单元层压板堆叠在一起。 每个单元层叠体包括多个压电陶瓷层和多个内部电极层，其在单元层叠体的层叠方向上与压电陶瓷层交替层叠。 每个粘合剂层形成在相邻的两个单元层压板之间，以将两个单元层压体粘合在一起。 此外，各粘合剂层的厚度为1μm以下，粘合强度为1.3MPa以上。

公开(公告)号：US07429817B2

公开(公告)日：2008-09-30

申请号：US11822014

申请日：2007-06-29

申请人： Hiroaki Asano ,  Yoichi Kobane

发明人： Hiroaki Asano ,  Yoichi Kobane

IPC分类号： H01L41/047

CPC分类号： H01L41/0472

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20080001503A1

公开(公告)日：2008-01-03

申请号：US11822014

申请日：2007-06-29

申请人： Hiroaki Asano ,  Yoichi Kobane

发明人： Hiroaki Asano ,  Yoichi Kobane

IPC分类号： H01L41/083

CPC分类号： H01L41/0472

摘要： 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.

公开(公告)号：US08695892B2

公开(公告)日：2014-04-15

申请号：US13022795

申请日：2011-02-08

申请人： Yoichi Kobane ,  Shuichi Matsumoto ,  Naofumi Adachi ,  Tsukasa Yamashita ,  Fumihiro Fujikake

发明人： Yoichi Kobane ,  Shuichi Matsumoto ,  Naofumi Adachi ,  Tsukasa Yamashita ,  Fumihiro Fujikake

IPC分类号： F02M41/16

CPC分类号： F02M47/027 ,  F02M45/00 ,  F02M2547/001

摘要： In a fuel injection device, a control body has a pressure control chamber, an inflow port and an outflow port. The inflow port and the outflow port are opened at an abutting surface exposed to the pressure control chamber. In the pressure control chamber is arranged a floating plate for pressing the abutting surface by a pressing surface with the pressure of the fuel to interrupt communication between the inflow port and the pressure control chamber. The abutting surface of the control body is provided with an outer opposite surface portion opposite to an outer edge of the pressing surface in a displacement axis direction of the floating plate, and the outer opposite surface portion has a special depressed portion that is depressed in the displacement axis direction and that extends along the shape of the outer edge of the pressing surface.

摘要翻译： 在燃料喷射装置中，控制体具有压力控制室，流入口和流出口。 流入口和流出口在暴露于压力控制室的邻接表面处开口。 在压力控制室中设置有浮动板，用于利用燃料的压力通过按压表面按压抵接表面，以中断流入端口和压力控制室之间的连通。 控制体的抵接面在浮板的位移轴方向上设置有与按压面的外缘相反的外侧面部，该外侧相对面部具有凹陷部 并且沿着按压表面的外边缘的形状延伸。

公开(公告)号：US07439655B2

公开(公告)日：2008-10-21

申请号：US11405493

申请日：2006-04-18

申请人： Hiroaki Asano ,  Hidekazu Hattori ,  Yoichi Kobane

发明人： Hiroaki Asano ,  Hidekazu Hattori ,  Yoichi Kobane

IPC分类号： H01L41/08

CPC分类号： H01L41/0472 ,  F02M51/005 ,  F02M51/0603

摘要： 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.

摘要翻译： 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。

公开(公告)号：US09127629B2

公开(公告)日：2015-09-08

申请号：US13318527

申请日：2011-03-31

申请人： Masato Yamada ,  Yoichi Kobane ,  Naofumi Adachi ,  Tsukasa Yamashita

发明人： Masato Yamada ,  Yoichi Kobane ,  Naofumi Adachi ,  Tsukasa Yamashita

IPC分类号： F02M61/10 ,  F02M61/00 ,  F02M47/02 ,  F02M61/16

CPC分类号： F02M47/027 ,  F02M47/025 ,  F02M61/161 ,  F02M2547/008

摘要： A fuel injection device (100) includes a control body (40) provided with an injection hole (44), a nozzle needle (60) that opens or closes the injection hole (44), a pressure control chamber (53) controlling a movement of the nozzle needle (60), an inflow channel (52) through which high-pressure fuel is introduced to the pressure control chamber (53), an outflow channel (54) through which the fuel from the pressure control chamber (53) is discharged, and a floating plate (70) that opens or closes the inflow channel (52). In the fuel injection device (100), the control body (40) includes a cylinder (56) defining the pressure control chamber (53) in a radial direction thereof, and an inner wall portion (56a) of the cylinder (56) includes a communication groove (57a) which causes an inflow chamber (53a) that is provided within the pressure control chamber (53) at a side of the inflow channel (52) relative to the floating plate (70), to communicate with a back pressure chamber (53b) that is provided within the pressure control chamber (53) at a side of the nozzle needle (60) relative to the floating plate (70).

摘要翻译： 燃料喷射装置（100）包括设置有喷射孔（44）的控制体（40），打开或关闭喷射孔（44）的喷嘴针（60），控制运动的压力控制室 所述喷嘴针（60）的流入通道（52），将高压燃料引入所述压力控制室（53）的流入通道（52），来自所述压力控制室（53）的燃料通过所述流出通道 以及打开或关闭流入通道（52）的浮板（70）。 在燃料喷射装置（100）中，控制体（40）包括在径向上限定压力控制室（53）的气缸（56），气缸（56）的内壁部（56a） 连通槽（57a），其使得在所述压力控制室（53）内设置在所述流入通道（52）的相对于所述浮板（70）的一侧的流入室（53a）与背压 在所述压力控制室（53）内设置在所述喷嘴针（60）的相对于所述浮板（70）的一侧的室（53b）。