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1. 发明授权

US4730494A Method for examining a surface of a sample by means of ultrasound 失效
标题翻译：通过超声波检查样品表面的方法
公开(公告)号：US4730494A
公开(公告)日：1988-03-15
申请号：US904400
申请日：1986-09-08
申请人： Isao Ishikawa , Hiroshi Kanda , Kageyoshi Katakura
发明人： Isao Ishikawa , Hiroshi Kanda , Kageyoshi Katakura
IPC分类号： G01N29/26 , G01B17/00 , G01B17/02 , G01H3/12 , G01N29/00 , G01N29/06 , G01N29/34 , G01N29/04
CPC分类号： G01B17/025 , G01H3/125 , G01N29/348 , G01N2291/02854
摘要： A method for examining a layer having defects and in particular the thickness of a machining damaged layer on a surface of a sample by means of a focused ultrasound beam and a device for realizing the method are disclosed, in which a focused ultrasound beam is generated and ultrasound reflected by the sample is detected. Curves (called V(z) curves) representing the relation of the distance between a transducer detecting the reflected ultrasound and the sample versus the detection output are traced while varying the distance and this measurement is repeated while varying the frequency of the focused ultrasound beam. The propagation velocity of surface acoustic wave in the sample is calculated on the basis of the period in each of the plurality of V(z) curves and a frequency dependence characteristic curve for the propagation velocity is obtained. The thickness of the machining damaged layer in the surface portion of the sample is evaluated from inflection points in the frequency dependence characteristic curve.
摘要翻译：公开了一种通过聚焦超声波束和用于实现该方法的装置来检查具有缺陷，特别是样品表面上的加工损伤层的厚度的层的方法，其中产生聚焦超声波束，检测由样品反射的超声波。在改变距离的同时，跟踪表示检测反射超声波检测器的传感器与样本与检测输出之间的距离的关系的曲线（称为V（z）曲线），并且在改变聚焦超声波束的频率的同时重复该测量。基于多个V（z）曲线中的每一个的周期来计算样本中表面声波的传播速度，并且获得用于传播速度的频率依赖特性曲线。样品表面部分的加工损伤层的厚度根据频率相关特性曲线的拐点进行评价。

2. 发明授权

US4394824A Acoustic microscope 失效
标题翻译：声学显微镜
公开(公告)号：US4394824A
公开(公告)日：1983-07-26
申请号：US261032
申请日：1981-05-06
申请人： Hiroshi Kanda , Isao Ishikawa , Toshio Kondo , Kageyoshi Katakura
发明人： Hiroshi Kanda , Isao Ishikawa , Toshio Kondo , Kageyoshi Katakura
IPC分类号： G01N29/06 , G01H3/12 , G01S15/89 , G01N29/00
CPC分类号： G01S15/8906 , G01H3/125
摘要： In an acoustic microscope wherein a piezoelectric transducer disposed on one face of an ultrasonic wave focusing lens radiates an ultrasonic wave into the lens and also converts into an electric signal a reflected wave from a specimen arranged on the side of the other face of the lens, a reflected wave from the interface of the lens and the reflected wave from the specimen are caused to interfere with each other.
摘要翻译：在其中设置在超声波聚焦透镜的一个面上的压电换能器将超声波辐射到透镜中并且还将来自设置在透镜另一面侧的试样的反射波转换成电信号的声学显微镜中，使来自透镜的界面的反射波和来自试样的反射波相互干扰。

3. 发明授权

US4597293A Scanning acoustic microscope 失效
标题翻译：扫描声学显微镜
公开(公告)号：US4597293A
公开(公告)日：1986-07-01
申请号：US689955
申请日：1985-01-09
申请人： Hiroshi Kanda , Isao Ishikawa , Kageyoshi Katakura , Chitose Nakaya
发明人： Hiroshi Kanda , Isao Ishikawa , Kageyoshi Katakura , Chitose Nakaya
IPC分类号： G01N29/06 , G10K11/02 , G01N29/04
CPC分类号： G01N29/06 , G10K11/02 , G01N2291/02854
摘要： An acoustic microscope wherein an ultrasonic beam is projected on a sample through a propagating medium by an ultrasonic transducer having a short focus, reflected acoustic waves from the sample are detected by the transducer, and a microscopic image of the sample is obtained by scanning the sample mechanically in two dimensions, comprises a cover member which is interposed between the sample and the propagating medium and which has an acoustic impedance higher than those of the two. The intensity of a reflection signal depends upon multipath reflection within the cover member, and an intense reflection signal is obtained even for a sample which differs slightly in the acoustic impedance from the propagating medium.
摘要翻译：一种声学显微镜，其中超声波束通过具有短焦距的超声波换能器通过传播介质投射在样本上，由换能器检测来自样品的反射声波，并通过扫描样品获得样品的显微图像在两个维度上机械地包括盖构件，其插入在样品和传播介质之间，并且具有比两者更高的声阻抗。反射信号的强度取决于盖构件内的多径反射，并且即使对于声阻抗与传播介质略有差异的样本也可获得强反射信号。

4. 发明授权

US4563898A Acoustic microscope 失效
标题翻译：声学显微镜
公开(公告)号：US4563898A
公开(公告)日：1986-01-14
申请号：US586806
申请日：1984-03-06
申请人： Hiroshi Kanda , Kageyoshi Katakura , Isao Ishikawa
发明人： Hiroshi Kanda , Kageyoshi Katakura , Isao Ishikawa
IPC分类号： G01H3/12 , G01N29/06 , G01N29/00
CPC分类号： G01H3/125 , G01N29/06
摘要： An acoustic microscope comprising an acoustic transducer which performs both generation and detection of acoustic wave beams, and a sample holding member which opposes to an acoustic wave transmitting and receiving surface of the transducer, to hold an object sample through an acoustic wave propagating medium and to offer behind the sample a layer of an acoustic impedance unequal to that of the sample, so that the sample holding member is moved in parallel, thereby to detect acoustic waves reflected from front and rear surfaces of the sample and acoustic waves reflected from a surface of the sample holding member without reaching the sample and to measure amplitudes and returning periods of time of the reflected acoustic waves, so as to measure the velocity of sound through the sample of unknown thickness, the acoustic impedance of the sample, etc. from the measured values.
摘要翻译：一种声学显微镜，包括执行声波波束的产生和检测的声换能器，以及与所述换能器的声波发射和接收表面相对的样本保持构件，以通过声波传播介质保持对象样本，并且在样品后面提供与样品不同的声阻抗层，使得样品保持构件平行移动，从而检测从样品的前表面和后表面反射的声波以及从样品的表面反射的声波样品保持构件未到达样品并测量反射声波的振幅和返回时间段，以便测量来自测量的未知厚度样品的声音速度，样品的声阻抗等价值观。

5. 发明授权

US4446738A Acoustic scanning microscope 失效
标题翻译：声扫描显微镜
公开(公告)号：US4446738A
公开(公告)日：1984-05-08
申请号：US330779
申请日：1981-12-14
申请人： Isao Ishikawa , Hiroshi Kanda , Kageyoshi Katakura
发明人： Isao Ishikawa , Hiroshi Kanda , Kageyoshi Katakura
IPC分类号： G01S7/52 , G01D5/48 , G01H3/12 , G01N29/06 , G01S15/89 , G01N29/04
CPC分类号： G01H3/125 , G01D5/48 , G01N29/06 , G01N2291/2697
摘要： An acoustic scanning microscope includes a specimen table for supporting a specimen illuminated by an ultrasonic wave. The specimen table is supported in a non-contacting manner under aerostatic pressure or alternatively magnetic repulsion.
摘要翻译：声扫描显微镜包括用于支撑由超声波照射的样本的样本台。样品台在空气静压或磁排斥下以非接触的方式支撑。

6. 发明授权

US5109858A Pulse doppler measuring apparatus 失效
标题翻译：脉冲多普勒测量仪
公开(公告)号：US5109858A
公开(公告)日：1992-05-05
申请号：US650421
申请日：1991-02-04
申请人： Hisashi Nishiyama , Yasuhiro Hashimoto , Hiroshi Kanda , Kageyoshi Katakura
发明人： Hisashi Nishiyama , Yasuhiro Hashimoto , Hiroshi Kanda , Kageyoshi Katakura
IPC分类号： G01P5/00 , A61B8/06 , G01S15/52 , G01S15/58
CPC分类号： G01S15/52 , G01S15/582 , G01S15/584
摘要： The present invention relates to a pulse Doppler measuring apparatus using the so-called acceleration method. In order to prevent production of a secondary aliasing (where a phase vector is subjected to an aliasing), the apparatus is provided with an MTI filter, which decomposes a first phase vector of a reflected wave obtained by mixing a reflection signal with a reference signal into a real part and an imaginary part, obtains a first regression line for variations of each of the parts and extracts a second phase vector corresponding only to the high frequency component of the reflected wave by calculating differences of the real part and the imaginary part from the first regression line; and/or an angular component .DELTA..theta. of the phase difference vector is obtained; a second regression line is obtained for this phase difference angle .DELTA..theta.; and the phase difference angle .DELTA..theta. is corrected by using this second regression line, to prevent the production of a secondary aliasing.
摘要翻译：本发明涉及使用所谓的加速法的脉冲多普勒测量装置。为了防止产生二次混叠（其中相位矢量经历混叠），该装置设置有MTI滤波器，其分解通过将反射信号与参考信号混合而获得的反射波的第一相位矢量获得用于各部分的变化的第一回归线，并且通过计算实部和虚部的差异来提取仅对应于反射波的高频分量的第二相位矢量第一回归线和/或相位差矢量的角分量DELTAθ; 对于该相位差角度ΔTATA获得第二回归线; 并且通过使用该第二回归线来校正相位差角度ΔTATA，以防止二次混叠的产生。

7. 发明授权

US5246006A Apparatus for ultrasonic color flow mapping 失效
标题翻译：用于超声色彩流动绘图的设备
公开(公告)号：US5246006A
公开(公告)日：1993-09-21
申请号：US781840
申请日：1991-10-24
申请人： Hiroshi Kanda , Shinichiro Umemura , Hisashi Nishiyama , Ryuichi Shinomura , Kageyoshi Katakura , Shizuo Ishikawa , Koji Tanabe , Satoshi Tamano
发明人： Hiroshi Kanda , Shinichiro Umemura , Hisashi Nishiyama , Ryuichi Shinomura , Kageyoshi Katakura , Shizuo Ishikawa , Koji Tanabe , Satoshi Tamano
IPC分类号： A61B8/06 , G01P5/24 , G01S7/52 , G01S15/89
CPC分类号： G01S15/8981 , A61B8/06 , A61B8/13 , G01P5/244 , G01S7/52071
摘要： An ultrasonic flow mapping apparatus transmits and reflects waves from sampling points on a two-dimensional cross-section. The waves are detected while transmitting repeatedly ultrasonic pulses. The phase shifts of different reflected waves are calculated, and displayed in color to show a distribution of blood flow velocity. Artifact due to reflected waves from body organs, which remain even by using MTI filters, is detected from phase signals, which have not passed through the MTI filters, and the artifact is removed by lowering display brightness for a sampling point corresponding to a relevant detection output.
摘要翻译：超声流量测绘装置在二维横截面上从采样点发射和反射波。在发送重复的超声波脉冲时检测波。计算不同反射波的相移，并以彩色显示，以显示血流速度的分布。从没有通过MTI滤波器的相位信号中检测出由于身体器官的反射波而产生的人造物体，甚至通过使用MTI滤波器仍然保持人造物，并且通过降低对应于相关检测的采样点的显示亮度来消除伪像输出。

8. 发明授权

US4044273A Ultrasonic transducer 失效
标题翻译：超声波换能器
公开(公告)号：US4044273A
公开(公告)日：1977-08-23
申请号：US635086
申请日：1975-11-25
申请人： Hiroshi Kanda , Kageyoshi Katakura , Takaji Suzuki
发明人： Hiroshi Kanda , Kageyoshi Katakura , Takaji Suzuki
IPC分类号： G01S7/52 , A61B8/00 , G01N29/04 , G01S7/521 , G01S15/89 , G10K11/32 , H04R1/32 , H04R17/00 , H01L41/04
CPC分类号： G10K11/32 , H04R17/00 , G01N2291/02872
摘要： A transducer included in an ultrasonic source is a concave ultrasonic transducer made of a piezoelectric material. The concave ultrasonic transducer is shaped into such body of revolution that a section of the transducer forms a revolutionary arc surface consisting of two arcs. Owing to the shape, an ultrasonic source similar to a conventional ring type source is constructed.
摘要翻译：包括在超声波源中的换能器是由压电材料制成的凹形超声换能器。凹形超声波换能器成形为这样的旋转体，换能器的一部分形成由两个弧组成的革命性的弧形表面。由于形状，构成了类似于常规环型源的超声波源。

9. 发明授权

US5457996A Receiving beam former and an ultrasonic imaging system using the same 失效
标题翻译：接收波束形成器和使用其的超声波成像系统
公开(公告)号：US5457996A
公开(公告)日：1995-10-17
申请号：US64925
申请日：1993-05-24
申请人： Shin-ichi Kondo , Hiroshi Kanda , Kageyoshi Katakura , Ryuichi Shinomura , Yuichi Miwa
发明人： Shin-ichi Kondo , Hiroshi Kanda , Kageyoshi Katakura , Ryuichi Shinomura , Yuichi Miwa
IPC分类号： A61B8/00 , G01N29/34 , G01N29/36 , G01N29/40 , G01N29/44 , G01S7/52 , G10K11/34 , G01N29/00
CPC分类号： G10K11/345 , G01N29/34 , G01N29/36 , G01N29/40 , G01S7/52046 , G01S7/52095 , G01N2291/106 , G01S7/52025
摘要： A receiving beamformer is provided which simultaneously generates a plurality of receiving beam signals corresponding to receiving beams of a plurality of directions on the basis of signals received by an array of vibrator elements for receiving an ultrasonic wave. This receiving beamformer includes a variable amplifying unit for amplifying the received signals in accordance with the depth of measurement to produce output signals, an A/D converting unit for converting the output signals from the variable amplifying unit into digital signals at a predetermined sampling period, a digital delay unit for receiving each of the digital signals and for producing a plurality of delayed signals corresponding to the receiving beams for each of the digital signals, and a first adding unit for adding the delayed signals corresponding to each of the receive beams and to the respective digital signals. The digital delay unit includes a first delay unit for delaying the respective digital signals at a unit delay time same as the sampling period to produce first delayed signals, and a second delay unit for delaying each of the first delayed signals at a unit delay time shorter than the sampling period to produce a plurality of delayed signals for each of the first delayed signals.
摘要翻译：提供接收波束形成器，其基于由用于接收超声波的振动器元件阵列接收的信号同时产生对应于多个方向的接收波束的多个接收波束信号。该接收波束形成器包括可变放大单元，用于根据测量深度放大接收信号以产生输出信号; A / D转换单元，用于在预定采样周期将来自可变放大单元的输出信号转换为数字信号，数字延迟单元，用于接收每个数字信号并产生与每个数字信号相对应的接收波束的多个延迟信号;以及第一加法单元，用于将对应于每个接收波束的延迟信号相加，相应的数字信号。数字延迟单元包括第一延迟单元，用于以与采样周期相同的单位延迟时间延迟相应的数字信号，以产生第一延迟信号;以及第二延迟单元，用于将每个第一延迟信号以单位延迟时间缩短比采样周期产生用于每个第一延迟信号的多个延迟信号。

10. 发明授权

US5415173A Ultrasound diagnosis system 失效
标题翻译：超声诊断系统
公开(公告)号：US5415173A
公开(公告)日：1995-05-16
申请号：US197766
申请日：1994-02-16
申请人： Yuichi Miwa , Kageyoshi Katakura , Hideyuki Ban , Hiroshi Masuzawa , Hiroshi Kanda
发明人： Yuichi Miwa , Kageyoshi Katakura , Hideyuki Ban , Hiroshi Masuzawa , Hiroshi Kanda
IPC分类号： G01S7/52 , G01S15/89 , G10K11/34 , A61B8/00
CPC分类号： G10K11/346 , G01S7/52049 , G01S15/8918 , G01S15/892 , G01S15/8927 , G01S7/5205
摘要： An ultrasound diagnosis system including a plurality of elements arrayed for transmitting ultrasonic wave to a testing object and for receiving ultrasonic wave reflected from the testing object, a device for giving a delay time distribution to respective transmitting and receiving signals of the elements to thereby form an ultrasonic beam having directivity in a predetermined direction, a device for displaying a sectional image of the testing object, and a sound velocity distribution control device for changing sound velocities in the testing object to be set up in respective elements in accordance with a focal point position of the ultrasonic beam and the respective positions of the elements in order to determine the delay time distribution, wherein the system further includes a sound velocity distribution control device for changing sound velocities to be set up in the respective elements on the basis of functions forming a system of orthogonal functions in which array number successively given to respective array positions of the elements in a transmitting and receiving aperture composed of a predetermined number of the elements is regarded as a variable, and on the basis of expanding coefficients by which respective functions forming the system of orthogonal functions are multiplied respectively.
摘要翻译：一种超声诊断系统，包括：多个元件，其被排列成用于将超声波发射到测试对象并用于接收从测试对象反射的超声波;一个装置，用于给各元件的各个发送和接收信号提供延迟时间分布，从而形成具有预定方向的方向性的超声波束，用于显示检查对象的截面图像的装置，以及声速分布控制装置，用于根据焦点位置改变在各个要素中设定的检测对象物的声速和所述元件的相应位置，以便确定所述延迟时间分布，其中所述系统还包括声速分布控制装置，用于基于形成所述多个元件的功能来改变要在各个元件中建立的声速正交函数系统中数组成功将由预定数量的元件构成的发送和接收孔径中的元件的各个阵列位置视为变量，并且基于构成正交函数系统的各个功能的扩展系数分别相乘。

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