公开(公告)号：US6020675A

公开(公告)日：2000-02-01

申请号：US38145

申请日：1998-03-11

申请人： Yohachi Yamashita ,  Senji Shimanuki ,  Kouichi Harada ,  Shiroh Saitoh ,  Mamoru Izumi ,  Tsuyoshi Kobayashi ,  Masaru Kawachi

发明人： Yohachi Yamashita ,  Senji Shimanuki ,  Kouichi Harada ,  Shiroh Saitoh ,  Mamoru Izumi ,  Tsuyoshi Kobayashi ,  Masaru Kawachi

IPC分类号： B06B1/06 ,  H01L41/08

CPC分类号： B06B1/0622 ,  H01L41/18 ,  H01L41/183 ,  H01L41/37

摘要： An ultrasonic probe provided with an ultrasonic wave-transmitting/receiving element comprising a 1-3 type or 2-2 type composite piezoelectric body exposing a piezoelectric monocrystal from at least one of the faces of the composite piezoelectric body, and an electrode mounted on at least one of the faces of the composite piezoelectric body, wherein the composite piezoelectric body comprises a piezoelectric monocrystal whose electromechanical coupling coefficient ratio k.sub.33 /k.sub.t is 1.6 or more, and a resin whose acoustic impedance Zp is 4.times.10.sup.6 kg/m.sup.2 s or less.

摘要翻译： 一种超声波探头，其具有超声波收发元件，该超声波收发元件包括从复合压电体的至少一个表面露出压电单晶的1-3型或2-2型复合压电体，以及安装在复合压电体的电极 复合压电体的至少一个面，其中复合压电体包括机电耦合系数比k33 / kt为1.6以上的压电单晶，声阻抗Zp为4×10 6 kg / m 2·s以下的树脂。

公开(公告)号：US5402791A

公开(公告)日：1995-04-04

申请号：US285445

申请日：1994-08-05

申请人： Shiroh Saitoh ,  Mamoru Izumi ,  Yohachi Yamashita ,  Senji Shimanuki ,  Masaru Kawachi ,  Tsuyoshi Kobayashi

发明人： Shiroh Saitoh ,  Mamoru Izumi ,  Yohachi Yamashita ,  Senji Shimanuki ,  Masaru Kawachi ,  Tsuyoshi Kobayashi

IPC分类号： B06B1/06 ,  C30B9/00 ,  H01L41/18 ,  H04R17/08 ,  A61B8/00

CPC分类号： C30B29/22 ,  B06B1/0648 ,  C30B9/00 ,  H01L41/18 ,  H04R17/08

摘要： Disclosed is a piezoelectric single crystal which has a large electromechanical coupling coefficient and hardly brings about depolarization due to the effect of heat in, e.g., the steps of manufacturing an ultrasonic transmitting/receiving element. The piezoelectric single crystal consists essentially of a general formula:Pb{[M1.sub.1/3 Nb.sub.(2/3)-(2z/3) Ta.sub.2z/3 ].sub.1-x-y Ti.sub.x M2.sub.y }O.sup. 3wherein M1 represents at least one metal selected from the group consisting of Zn, Ni, and Mg, M2 represents at least one metal selected from the group consisting of Pt, Fe, Bi, Rh, and Ir, and x, y, and z are defined as 0.05.ltoreq.x.ltoreq.0.2, 0.00001.ltoreq.y.ltoreq.0.01, and 0.ltoreq.z.ltoreq.0.1, respectively.

摘要翻译： 公开了一种压电单晶，其具有大的机电耦合系数，并且由于在例如制造超声波发射/接收元件的步骤中的热量的影响，几乎不引起去极化。 压电单晶基本上由通式：Pb {[M11 / 3Nb（2/3） - （2z / 3）Ta2z / 3] 1-x-yTixM2y} O 3组成，其中M1表示选自 由Zn，Ni和Mg组成的组，M2表示选自Pt，Fe，Bi，Rh和Ir中的至少一种金属，x，y和z定义为0.05 < =0.2,0.00001≤y≤0.01，0≤z≤0.1。

公开(公告)号：US06238481B1

公开(公告)日：2001-05-29

申请号：US09321549

申请日：1999-05-28

申请人： Yohachi Yamashita ,  Tsuyoshi Kobayashi ,  Shiroh Saitoh ,  Kouichi Harada ,  Senji Shimanuki

发明人： Yohachi Yamashita ,  Tsuyoshi Kobayashi ,  Shiroh Saitoh ,  Kouichi Harada ,  Senji Shimanuki

IPC分类号： C30B2502

CPC分类号： B06B1/0622

摘要： A method of manufacturing an ultrasonic probe includes the steps of forming electrodes on two surfaces of a piezoelectric single crystal made of a complex perovskite compound and then adhering the piezoelectric single crystal on a backing material, dicing the piezoelectric single crystal to form an arrayed piezoelectric single-crystal transducer, and poling the arrayed piezoelectric single-crystal transducer in the electric field of 0.5 to 2 kV/mm at a temperature of 80° C. or less.

摘要翻译： 一种制造超声波探头的方法包括以下步骤：在由复合钙钛矿化合物制成的压电单晶的两个表面上形成电极，然后将压电单晶粘附在背衬材料上，切割压电单晶以形成阵列压电单体 并且在80℃或更低的温度下以0.5至2kV / mm的电场极化排列的压电单晶换能器。

公开(公告)号：US6153967A

公开(公告)日：2000-11-28

申请号：US161415

申请日：1998-09-24

申请人： Tsuyoshi Kobayashi ,  Shiroh Saitoh ,  Yohachi Yamashita ,  Senji Shimanuki ,  Kouichi Harada

发明人： Tsuyoshi Kobayashi ,  Shiroh Saitoh ,  Yohachi Yamashita ,  Senji Shimanuki ,  Kouichi Harada

IPC分类号： G01N29/24 ,  A61B8/06 ,  B06B1/06 ,  H01L41/047 ,  H01L41/08 ,  H04R17/00

CPC分类号： B06B1/0622 ,  H01L41/047 ,  H01L41/0475 ,  H01L41/0477

摘要： An ultrasonic probe has strip-formed oscillators formed of a piezoelectric crystal material arranged in an array form. Metal layers are formed by a first layer of at least one of Ti, Ni and Cr, a second layer of at least one of Cu and Ni, and a third layer of at least one of Cu, Au, Pt, Ag and Pd. A backing material is fixed to the oscillators through the metal layers. With this structure, it is possible to manufacture an ultrasonic probe having a high sensitivity while maintaining a favorable dicing process, even while using a backing material having a low acoustic impedance and soft properties.

摘要翻译： 超声波探头具有由排列成阵列形式的压电晶体材料形成的带状振荡器。 金属层由Ti，Ni和Cr中的至少一种的第一层，Cu和Ni中的至少一种的第二层和Cu，Au，Pt，Ag和Pd中的至少一种的第三层形成。 背衬材料通过金属层固定到振荡器。 利用这种结构，即使使用具有低声阻抗和软性质的背衬材料，也可以制造具有高灵敏度的超声波探头，同时保持有利的切割工艺。

公开(公告)号：US5295487A

公开(公告)日：1994-03-22

申请号：US15425

申请日：1993-02-09

申请人： Shiroh Saitoh ,  Mamoru Izumi ,  Senji Shimanuki ,  Shinichi Hashimoto ,  Yohachi Yamashita

发明人： Shiroh Saitoh ,  Mamoru Izumi ,  Senji Shimanuki ,  Shinichi Hashimoto ,  Yohachi Yamashita

IPC分类号： B06B1/06 ,  A61B8/00

CPC分类号： B06B1/06

摘要： An ultrasonic probe includes an ultrasonic transmitting/receiving element which uses a piezoelectric member constituted by a solid-solution based single crystal of zinc lead niobate-lead titanate, so that low-frequency driving can be achieved, the thickness of the piezoelectric member in the direction of vibration can be decreased, matching with a transmitting/receiving circuit can be easily made, and the sensitivity can be improved. The ultrasonic probe includes an ultrasonic transmitting/receiving element having a piezoelectric member constituted by a solid-solution based single crystal of zinc lead niobate-lead titanate and a pair of electrodes formed on an ultrasonic transmitting/receiving surface of the piezoelectric member and a surface opposite to the transmitting/receiving surface, respectively.

摘要翻译： 超声波探头包括使用由铌酸锌铅钛酸铅的固溶体单晶构成的压电元件的超声波发送/接收元件，从而可实现低频驱动，压电元件的厚度 可以减少振动方向，可以容易地进行与发送/接收电路的匹配，并且可以提高灵敏度。 超声波探头具有超声波收发元件，该超声波收发元件具有由铌酸铅铅钛酸铅的固溶体型单晶构成的压电元件和形成在压电元件的超声波收发面上的一对电极， 分别与发射/接收表面相对。

公开(公告)号：US5410209A

公开(公告)日：1995-04-25

申请号：US187055

申请日：1994-01-27

申请人： Yohachi Yamashita ,  Shiroh Saitoh

发明人： Yohachi Yamashita ,  Shiroh Saitoh

IPC分类号： H01L41/18 ,  H01L41/187 ,  H01L41/08 ,  C04B35/49

CPC分类号： C04B35/493 ,  C01G23/006 ,  C01G25/006 ,  C01G33/006 ,  C01G53/006 ,  C04B35/499 ,  C04B35/645 ,  H01L41/187 ,  H01L41/1875 ,  H01L41/1876 ,  C01P2002/50 ,  C01P2002/78 ,  C01P2006/40 ,  C04B2235/3201 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3224 ,  C04B2235/3227 ,  C04B2235/3239 ,  C04B2235/3241 ,  C04B2235/3248 ,  C04B2235/3251 ,  C04B2235/3255 ,  C04B2235/3256 ,  C04B2235/3258 ,  C04B2235/3262 ,  C04B2235/3272 ,  C04B2235/3275 ,  C04B2235/3279 ,  C04B2235/3284 ,  C04B2235/3294 ,  C04B2235/3298 ,  C04B2235/656 ,  C04B2235/72

摘要： A piezoelectric material with a high fracture toughness and a large electromechanical coupling coefficient is disclosed. This piezoelectric material contains a composition which is represented by xPb(Sc.sub.1/2 Nb.sub.1/2)O.sub.3 -yPbTiO.sub.3 -zPbZrO.sub.3 -wPb(Me.sub.1/3 Nb.sub.2/3)O.sub.3, where Me is at least one metal selected from the group consisting of Mg, Zn and Ni, and x+y+z+w=1.00, x, y, z, and w being values falling within region which is defined by connecting points a, b, c, and d and which excludes a line ab, the points a, b, c, and d existing on the faces of a regular trigonal pyramid having apices P.sub.1, P.sub.2, P.sub.3, and P.sub.4 which correspond to Pb(Sc.sub.1/2 Nb.sub.1/2)O.sub.3, PbTiO.sub.3, PbZrO.sub.3 and Pb(Me.sub.1/3 Nb.sub.2/3)O.sub.3, respectively, and the points a, b, c, and d having the following coordinate values when the apices P.sub.1, P.sub.2, P.sub.3, and P.sub.4 have coordinate values of (X.sub.1, Y.sub.1, Z.sub.1, W.sub.1 =1, 0, 0, 0), (X.sub.2, Y.sub.2, Z.sub.2, W.sub.2 =0, 1, 0, 0, 0), (X.sub.3, Y.sub.3, Z.sub.3, W.sub.3 =0, 0, 1, 0), and (X.sub.4, Y.sub.4, Z.sub.4, W.sub.4 =0, 0, 0, 1):______________________________________ X Y Z W ______________________________________ a 0.72 0.28 0.00 0.00 b 0.02 0.98 0.00 0.00 c 0.02 0.28 0.70 0.00 d 0.02 0.20 0.00 0.78 ______________________________________

摘要翻译： 公开了具有高断裂韧性和大机电耦合系数的压电材料。 该压电材料含有由xPb（Sc1 / 2Nb1 / 2）O3-yPbTiO3-zPbZrO3-wPb（Me1 / 3Nb2 / 3）O3表示的组成，其中Me是选自Mg，Zn 并且x + y + z + w =​​ 1.00，x，y，z和w是落在由连接点a，b，c和d定义并且不包括线ab的区域内的值， 存在于具有对应于Pb（Sc1 / 2Nb1 / 2）O3，PbTiO3，PbZrO3和Pb（Me1 / 3Nb2 / Pb）的顶点P1，P2，P3和P4的正三角锥的表面上的a，b，c和d， 3）O3，并且当顶点P1，P2，P3和P4具有坐标值（X1，Y1，Z1，W1 = 1,0，...）时具有以下坐标值的点a，b，c和d， 0，0），（X2，Y2，Z2，W2 = 0,1,0,0,0），（X3，Y3，Z3，W3 = 0,0,1,0）和（X4，Y4，Z4 ，W4 = 0,0,0,1）：-XYZW -a 0.72 0.28 0.00 0.00 -b 0.02 0.98 0.00 0.00 -c 0.02 0.28 0.70 0.00 -d 0.02 0.20 0.00 0.78 -

公开(公告)号：US5912679A

公开(公告)日：1999-06-15

申请号：US603599

申请日：1996-02-21

申请人： Satoshi Takayama ,  Noriko Kudo ,  Shiroh Saitoh ,  Mamoru Izumi ,  Chiaki Tanuma

发明人： Satoshi Takayama ,  Noriko Kudo ,  Shiroh Saitoh ,  Mamoru Izumi ,  Chiaki Tanuma

IPC分类号： B41J2/14 ,  B41J29/38 ,  B41J2/045 ,  B41J2/135 ,  B41J2/205

CPC分类号： B41J2/14008 ,  B41J2002/14322

摘要： A driving circuit controls a time for applying a drive signal to a piezoelectric element so as to bring a control in the number of ink droplets squirted from a liquid surface of liquid ink according to a gray scale level of an image to be printed on a printed object. According to application of the drive signal, acoustic waves emitted from a piezoelectric element array are focused in a main scanning direction, made incident to an acoustic lens via an acoustic matching layer, further focused in a direction orthogonal to the main scanning direction and focused in a vicinity of the liquid surface in a point form. In the vicinity of the liquid surface, an ink liquid mound is formed by means of pressure (discharging pressure) generated by the focused acoustic waves and then from a tip of the ink liquid mound an ink droplet according to the application time is squirted. The squirted ink droplet is ejected and stuck to the printed object. By performing main and subscanning to the printed object, a two-dimensional image is printed thereon.

摘要翻译： 驱动电路控制将驱动信号施加到压电元件的时间，以便根据待印刷的图像的灰度级别对液体墨水的液面喷射的墨滴数量进行控制 目的。 根据驱动信号的应用，从压电元件阵列发出的声波在主扫描方向上聚焦，通过声匹配层入射到声透镜，进一步在与主扫描方向正交的方向上聚焦并聚焦在 以点形式的液面附近。 在液体表面附近，通过聚焦声波产生的压力（排出压力）形成油墨液体堆，然后从油墨液体的顶部喷射根据施加时间的墨滴。 喷射的墨滴被喷射并粘贴到印刷对象上。 通过对打印对象执行主和副扫描，在其上打印二维图像。

公开(公告)号：US5553618A

公开(公告)日：1996-09-10

申请号：US209528

申请日：1994-03-14

申请人： Takuji Suzuki ,  Satoshi Aida ,  Katsuhiko Fujimoto ,  Mariko Shibata ,  Yoshiharu Ishibashi ,  Mamoru Izumi ,  Shiroh Saitoh ,  Kazuya Okamoto

发明人： Takuji Suzuki ,  Satoshi Aida ,  Katsuhiko Fujimoto ,  Mariko Shibata ,  Yoshiharu Ishibashi ,  Mamoru Izumi ,  Shiroh Saitoh ,  Kazuya Okamoto

IPC分类号： A61B5/055 ,  A61B8/00 ,  A61B17/00 ,  A61B19/00 ,  A61N7/02 ,  G01R33/28 ,  G01R33/48 ,  A61B6/00

CPC分类号： G01R33/28 ,  A61N7/02 ,  G01R33/4804 ,  A61B2017/00694 ,  A61B2017/00707 ,  A61B2017/00716 ,  A61B2090/374 ,  A61B2090/504 ,  A61B5/055 ,  A61B6/506 ,  A61B8/00

摘要： An ultrasound medical treatment system capable of determining the hot spot at high spatial resolution, and preventing the displacement of the hot spot from the focal point. In the system, the imaging device for obtaining image data of a treatment portion containing a treatment target and an irradiation device for applying radiation onto the treatment target are controlled in such a manner that the imaging device is controlled to obtain hot spot detection image data after the irradiation device is controlled to apply radiation at a prescribed level, so that a hot spot indicating a change due to a temperature change caused by the radiation at the prescribed level can be detected from the hot spot detection image data. The irradiation device is then controlled to apply a treatment radiation at a treatment level higher than the prescribed level according to the detected hot spot.

摘要翻译： 一种能够以高空间分辨率确定热点并防止热点从焦点位移的超声医疗系统。 在该系统中，控制用于获得含有处理对象的处理部分的图像数据的成像装置和用于向处理对象施加辐射的照射装置，使得成像装置被控制以获得热点检测图像数据 照射装置被控制为以规定的水平施加辐射，从而可以从热点检测图像数据检测到指示由于由规定水平的辐射导致的温度变化的变化的热点。 然后根据检测到的热点，照射装置被控制为以高于规定水平的处理水平施加治疗放射线。

公开(公告)号：US4958327A

公开(公告)日：1990-09-18

申请号：US238399

申请日：1988-08-31

申请人： Shiroh Saitoh ,  Mamoru Izumi ,  Syuzi Suzuki ,  Kazuhide Abe

发明人： Shiroh Saitoh ,  Mamoru Izumi ,  Syuzi Suzuki ,  Kazuhide Abe

IPC分类号： A61B8/00 ,  B06B1/06 ,  G01N29/04 ,  G01N29/24 ,  H04R3/00

CPC分类号： B06B1/064 ,  Y10S367/903

摘要： An ultrasonic imaging apparatus includes an ultrasonic transducer for outputting an ultrasonic beam and converting the echo of the ultrasonic beam into an echo signal, a transmitter section for supplying a drive signal to the ultrasonic transducer, a receiver section for receiving the echo signal output from the ultrasonic transducer and converting the echo signal into an image signal, and a coaxial cable for coupling the ultrasonic transducer to the transmitter and receiver sections. The ultrasonic transducer is constituted by a two-layer ultrasonic transducer having an impedance smaller than an impedance of the coaxial cable.

摘要翻译： 超声波成像装置包括超声波换能器，用于输出超声波束并将超声波束的回波转换成回波信号;发送器部，用于向超声波换能器提供驱动信号;接收部，用于接收来自超声波束的回波信号 超声波换能器并将回波信号转换成图像信号，以及用于将超声换能器耦合到发射器和接收器部分的同轴电缆。 超声波换能器由具有比同轴电缆的阻抗小的阻抗的​​双层超声换能器构成。

公开(公告)号：US5163436A

公开(公告)日：1992-11-17

申请号：US673086

申请日：1991-03-21

申请人： Shiroh Saitoh ,  Mamoru Izumi ,  Syuzi Suzuki ,  Shinichi Hashimoto

发明人： Shiroh Saitoh ,  Mamoru Izumi ,  Syuzi Suzuki ,  Shinichi Hashimoto

IPC分类号： A61B8/00 ,  A61B8/06 ,  A61B8/14 ,  B06B1/06 ,  G01N29/24 ,  H04R17/00

CPC分类号： B06B1/0614 ,  B06B1/064

摘要： An ultrasonic probe system is disclosed, which is designed to allow connection of a DC power supply capable of applying a voltage higher than the coercive electric field of each of a plurality of piezoelectric layers thereto, and includes a polarization turn over circuit means for, when the DC power supply is driven, turning over the polarity of the DC power supply so as to direct electric fields of every two adjacent layers constituting the piezoelectric layers in substantially opposite directions or electric fields of all the layers in the same direction. When the polarization turn over circuit means turns over the polarity of a voltage to be applied to direct electric fields of every two adjacent layers of the piezoelectric layers in substantially opposite directions or electric fields of all the layers in the same direction, the polarization turn over circuit means performs control to apply the voltage during a blanking time of an operating time of the system, thereby performing conversion of a resonance frequency, and selectively generating ultrasonic waves having a plurality of different frequencies.