公开(公告)号：US20070068266A1

公开(公告)日：2007-03-29

申请号：US11492961

申请日：2006-07-26

申请人： Tsukasa Fujimori ,  Natsuki Yokoyama ,  Hiroshi Fukuda ,  Yuko Hanaoka ,  Takashi Azuma

发明人： Tsukasa Fujimori ,  Natsuki Yokoyama ,  Hiroshi Fukuda ,  Yuko Hanaoka ,  Takashi Azuma

IPC分类号： G01L9/12

CPC分类号： G01L9/0073 ,  B60C23/0408 ,  G01D5/2417 ,  G01L9/12 ,  G01L27/007

摘要： A sensor and sensor module with small power consumption and high reliability are disclosed. The sensor includes a capacitor having a capacitance varying with a physical quantity, a capacitance-voltage conversion circuit for converting the capacitance of the capacitor into a voltage, and a control signal generation circuit for generating a plurality of control signals. The capacitor has a frequency-capacitance characteristic with a resonant frequency. In a measurement of the physical quantity, the capacitance of the capacitor is measured with one of the control signals having a first frequency which is much higher or much lower than the resonant frequency. In a self-diagnosis of the sensor, the capacitance of the capacitor is measured with another one of the control signals having a second frequency which is equal or close to the resonant frequency.

摘要翻译： 公开了具有小功耗和高可靠性的传感器和传感器模块。 传感器包括具有物理量变化的电容的电容器，用于将电容器的电容转换为电压的电容 - 电压转换电路，以及用于产生多个控制信号的控制信号产生电路。 电容器具有谐振频率的频率 - 电容特性。 在物理量的测量中，电容器的电容被测量，其中一个控制信号具有比谐振频率高得多或低得多的第一频率。 在传感器的自诊断中，电容器的电容用另一个控制信号测量，其中第二频率等于或接近谐振频率。

公开(公告)号：US20060284519A1

公开(公告)日：2006-12-21

申请号：US11341655

申请日：2006-01-30

申请人： Shinichiro Umemura ,  Takashi Azuma ,  Tatsuya Nagata ,  Hiroshi Fukuda ,  Toshiyuki Mine ,  Syuntaro Machida

发明人： Shinichiro Umemura ,  Takashi Azuma ,  Tatsuya Nagata ,  Hiroshi Fukuda ,  Toshiyuki Mine ,  Syuntaro Machida

IPC分类号： H01L41/00

CPC分类号： B06B1/0292

摘要： The present invention aims to stabilize sound-electricity conversion characteristics of a diaphragm-type sound-electricity conversion device as well as to decrease the noise level of an ultrasonic diagnostic apparatus using the sound-electricity conversion device. The sound-electricity conversion device is configured by a capacitor cell including a lower electrode formed on a silicon substrate and an upper electrode over the lower electrode, the lower and upper electrodes sandwiching a cavity. An electrode short-circuit prevention film is formed on the upper electrode on the cavity side. The electrode short-circuit prevention film is formed of a material with an electrical time constant shorter than 1 second and longer than 10 microseconds, such as silicon nitride containing a stoichiometrically excessive amount of silicon. As a result, the electrode short-circuit prevention film has small electric conductivity, and thus it is made possible to prevent the film from being charged with electric charge and to avoid the drift of the electric charge. Consequently, the sound-electricity conversion characteristics of the sound-electricity conversion device stabilize, and further the sound noise level of the ultrasonic diagnostic apparatus decreases.

摘要翻译： 本发明旨在稳定隔膜式声电转换装置的声电转换特性，并且降低使用声电转换装置的超声波诊断装置的噪声水平。 声电转换装置由包括形成在硅基板上的下电极和下电极上的上电极的电容器单元构成，下电极和上电极夹着空腔。 在空腔侧的上部电极上形成电极短路防止膜。 电极短路防止膜由电气时间常数短于1秒且长于10微秒的材料形成，例如含有化学计量过量的硅的氮化硅。 结果，电极短路防止膜具有小的导电性，因此可以防止膜被充电并避免电荷的漂移。 因此，声电转换装置的声电转换特性稳定，超声波诊断装置的声音噪声水平进一步降低。

公开(公告)号：US06929717B2

公开(公告)日：2005-08-16

申请号：US09899601

申请日：2001-07-06

申请人： Takashi Azuma ,  Makoto Suzuki ,  Nobuhiro Horiuchi

发明人： Takashi Azuma ,  Makoto Suzuki ,  Nobuhiro Horiuchi

IPC分类号： D21F13/00

CPC分类号： D21F13/00

摘要： An apparatus for making paper includes a stirring tank and a paper making portion. The stirring tank includes: an outer cylinder; a middle cylinder disposed concentrically with the outer cylinder; a raw-material feeding port for feeding raw-material into said stirring tank; a stirring mechanisms; and a top plate for holding the outer and middle cylinders in a predetermined position. The paper making portion is installed below the stirring tank and includes: a wire cloth and a paper making frame having an opening for holding said wire cloth, and the opening is connected to a suction unit. The stirring mechanisms are uniformly disposed above the wire cloth. In addition, a plurality of raw-material feeding ports are uniformly disposed above the wire cloth.

摘要翻译： 制造纸的装置包括搅拌槽和造纸部。 搅拌槽包括：外筒; 与所述外筒同心地设置的中筒; 原料供给口，用于将原料供给到所述搅拌槽中; 搅拌机制; 以及用于将外筒和中筒保持在预定位置的顶板。 造纸部安装在搅拌槽的下方，包括：丝网和具有用于保持丝网的开口的造纸架，开口连接到抽吸单元。 搅拌机构均匀地设置在丝布上方。 此外，多个原料供给口均匀地设置在丝布的上方。

公开(公告)号：US4321886A

公开(公告)日：1982-03-30

申请号：US177431

申请日：1980-08-12

申请人： Takashi Azuma

发明人： Takashi Azuma

IPC分类号： G01N27/72 ,  G03G15/08 ,  G03G15/09

CPC分类号： G03G15/0853

摘要： An apparatus for controlling toner concentration utilizing a hollow body upon which a detecting coil is wound. The hollow body responses to the inductance of the developer passing through. The apparatus further comprises: a first digital oscillator with the frequency thereof being variable according to changes in the inductance, a second digital oscillator producing a reference signal at predetermined frequency, and a first and second digital frequency dividers for dividing the outputs of the first and second oscillators, respectively. The fist and second dividers are cleared by the divided output of the other divider. A toner supply mechanism is energized when the first frequency divider is cleared and is de-energized when the second frequency divider is cleared.

摘要翻译： 一种利用卷绕有检测线圈的中空体来控制调色剂浓度的装置。 中空体响应于通过的显影剂的电感。 该装置还包括：第一数字振荡器，其频率根据电感的变化而变化，产生预定频率的参考信号的第二数字振荡器，以及用于分割第一和第二数字分频器的输出的第一和第二数字分频器 第二振荡器。 第一和第二分频器被另一个分频器的分频输出清零。 当第一个分频器清零时，调色剂供应机构通电，并在第二个分频器清零时断电。

公开(公告)号：US09439620B2

公开(公告)日：2016-09-13

申请号：US13992083

申请日：2011-12-01

申请人： Marie Tabaru ,  Takashi Azuma ,  Hideki Yoshikawa ,  Kunio Hashiba

发明人： Marie Tabaru ,  Takashi Azuma ,  Hideki Yoshikawa ,  Kunio Hashiba

IPC分类号： A61B8/00 ,  A61B8/08 ,  G01S7/52

CPC分类号： A61B8/08 ,  A61B8/0825 ,  A61B8/0891 ,  A61B8/485 ,  G01S7/52049 ,  G01S7/52071 ,  G01S7/52073

摘要： When multiple tissues having differing speeds of sound are intermixed in the viewing field of a measured subject such as a living body, the invention measures hardness, such as modulus of elasticity or viscosity, with high precision.

摘要翻译： 当具有不同声速的多个组织混合在诸如生物体的被测量对象的视野中时，本发明以高精度测量诸如弹性模量或粘度的硬度。

公开(公告)号：US09165363B2

公开(公告)日：2015-10-20

申请号：US14236347

申请日：2012-07-24

申请人： Hideki Yoshikawa ,  Takashi Azuma

发明人： Hideki Yoshikawa ,  Takashi Azuma

IPC分类号： G06K9/32 ,  G06T7/00 ,  A61B6/03 ,  A61B6/00 ,  A61B8/08 ,  A61B5/055

CPC分类号： G06T7/003 ,  A61B5/055 ,  A61B6/032 ,  A61B6/461 ,  A61B6/469 ,  A61B6/481 ,  A61B6/486 ,  A61B6/5211 ,  A61B6/5235 ,  A61B6/5241 ,  A61B6/5264 ,  A61B6/58 ,  A61B8/485 ,  A61B8/5207 ,  A61B8/5215 ,  A61B8/5246 ,  A61B2576/00 ,  G06T7/337 ,  G06T2200/24 ,  G06T2207/20104 ,  G06T2207/30004

摘要： Provided is an image diagnostic device with which it is possible to correct location misalignment of an image capture subject, and to improve the reliability of the result of the correction, in time series image data. An image diagnostic device may include an input part (13) which receives image data input; a correction unit (14) which computes a correction vector which denotes location misalignment of an image capture subject, and selects image data used with an image correction unit; an image correction part (20) which carries out a correction process on the image data based on the correction vector and creates corrected image data; a control part (21) which controls the correction unit and the image correction part; a memory (22) which stores the corrected image data and measurement data as stored data; an output unit (23) which outputs the stored data externally; a display unit (24) which displays the stored data; and an external input device (30) where an operator makes an input operation.

摘要翻译： 提供了一种图像诊断装置，可以在时间序列图像数据中校正图像拍摄对象的位置未对准，并且提高校正结果的可靠性。 图像诊断装置可以包括接收图像数据输入的输入部分（13） 校正单元（14），其计算表示图像拍摄对象的位置未对准的校正矢量，并选择与图像校正单元一起使用的图像数据; 图像校正部（20），其基于所述校正矢量对所述图像数据进行校正处理，并生成校正后的图像数据; 控制部件（21），其控制校正单元和图像校正部件; 存储校正图像数据和测量数据作为存储数据的存储器（22）; 输出单元（23），其从外部输出所存储的数据; 显示单元（24），显示所存储的数据; 以及操作者进行输入操作的外部输入装置（30）。

公开(公告)号：US08979759B2

公开(公告)日：2015-03-17

申请号：US13521776

申请日：2011-02-02

申请人： Tomohiko Tanaka ,  Takashi Azuma ,  Marie Tabaru ,  Kunio Hashiba

发明人： Tomohiko Tanaka ,  Takashi Azuma ,  Marie Tabaru ,  Kunio Hashiba

IPC分类号： A61B8/04 ,  A61B8/08 ,  A61B8/14

CPC分类号： A61B8/0883 ,  A61B8/04 ,  A61B8/485 ,  A61B8/486

摘要： Ultrasonic imaging device noninvasively measures cardiac muscle stiffness or intracardiac pressure. The device includes: an ultrasonic probe (2) transmitting and receiving ultrasonic waves to and from the heart; a signal-processing section (15) processing reflected echo signals; a display section (14) displaying results of signal processing as an image; and an input section (10) setting a predetermined point on the image. The signal-processing section (15) includes: a shape-extracting section (152) perceiving information on the shape of the heart from the reflected echo signals; a natural-frequency detecting section (153) detecting natural frequency of the heart from the reflected echo signals; and a calculating section (154) calculating stiffness of the cardiac muscle or the intracardiac pressure, wherein the calculating section (154) accurately calculates the stiffness of the cardiac muscle from the natural frequency of the heart and calculates the intracardiac pressure from the stiffness of the cardiac muscle that has been calculated.

摘要翻译： 超声成像装置无侵害性地测量心肌僵硬或心内压。 该装置包括：超声波探头（2），用于向心脏和/或从心脏传递和接收超声波; 处理反射回波信号的信号处理部（15） 显示部分（14），显示作为图像的信号处理的结果; 以及设置图像上的预定点的输入部（10）。 信号处理部（15）包括：形状提取部（152），从反射的回波信号中感知关于心脏的形状的信息; 自然频率检测部分，从反射回波信号中检测心脏的固有频率; 以及计算心肌的心率或心脏内压的计算部（154），其中，计算部（154）从心脏的固有频率精确地计算心肌的刚度，并从心脏的刚度算出心内压 已经计算出的心肌。

公开(公告)号：US08647276B2

公开(公告)日：2014-02-11

申请号：US13386184

申请日：2010-08-04

申请人： Marie Tabaru ,  Takashi Azuma ,  Kunio Hashiba

发明人： Marie Tabaru ,  Takashi Azuma ,  Kunio Hashiba

IPC分类号： A61B8/00

CPC分类号： A61B8/08 ,  A61B8/14 ,  A61B8/4488 ,  A61B8/485 ,  G01S7/52026 ,  G01S7/52038 ,  G01S7/52042 ,  G01S15/8954

摘要： In a radiation-pressure elastography technique for transmitting a ultrasound focused beam into a test object body and diagnosing the hardness thereof, it is required to consider high sensitivity and safety.In the present invention, the focused beam is transmitted to two positions as a means for displacing a tissue and exciting a shear wave. In addition, time control is performed in such a manner that a transmit beam serves as a burst-chirp signal, and ultrasound waves are transmitted and received while sweeping a transmit frequency. On this occasion, when the distance between the two focused points and the transmit frequency become integral multiple of the wavelength, two waves interfere with each other, thereby obtaining a large amplitude. Furthermore, when the transmit frequency becomes equal to a resonance frequency peculiar to the tissue, the amplitude also becomes larger. Accordingly, a small intensity of transmit waveform enhances sensitivity. In addition, transmission using the burst-chirp signal facilitates widening of a bandwidth of the transmit frequency, enabling usage of a frequency highly sensitive for a target measurement site. Optional number of focused points and arbitrary positions thereof allow a wide area to be covered.

摘要翻译： 在用于将超声聚焦光束传输到测试对象体内并且诊断其硬度的放射压弹性成像技术中，需要考虑高灵敏度和安全性。 在本发明中，聚焦光束作为用于移动组织并激发剪切波的装置传送到两个位置。 此外，以发射波束用作脉冲串啁啾信号的方式执行时间控制，并且在扫描发射频率的同时发射和接收超声波。 在这种情况下，当两个聚焦点和发射频率之间的距离成为波长的整数倍时，两个波彼此干涉，从而获得大的振幅。 此外，当发射频率等于组织特有的共振频率时，振幅也变大。 因此，小的发射波长强度提高了灵敏度。 此外，使用脉冲串啁啾信号的传输有助于扩大发射频率的带宽，使得能够使用对于目标测量站点高度敏感的频率。 可选数量的聚焦点和任意位置允许覆盖广泛的区域。

公开(公告)号：US20130317361A1

公开(公告)日：2013-11-28

申请号：US13982801

申请日：2011-12-28

申请人： Marie Tabaru ,  Takashi Azuma ,  Hideki Yoshikawa ,  Kunio Hashiba

发明人： Marie Tabaru ,  Takashi Azuma ,  Hideki Yoshikawa ,  Kunio Hashiba

IPC分类号： A61B8/08

CPC分类号： A61B8/485 ,  A61B8/42 ,  A61B8/469 ,  A61B8/5246 ,  G01S7/52042

摘要： An ultrasound diagnostic apparatus with which elastic modulus can be measured when measuring elastic modulus using shear wave generation. The ultrasound diagnostic apparatus includes an ultrasound probe that sends and receives echo signals, a strain-computing unit that receives an echo signal from the body by radiating a first displacement-detecting beam and computes strain information in a Region 1, a measurement position-selecting unit that selects a Region 2, within Region 1, based on the strain information, a displacement-generating unit that radiates a focused beam into the body and displaces the tissue, an elastic modulus-computing unit that receives an echo signal from the body by radiating a second displacement-detecting beam, detects the shear wave displacement that results from the focused beam, and computes the elastic modulus in Region 2, and a display unit that displays the strain image that is based on the strain information in Region 1 and the elastic modulus.

摘要翻译： 一种使用剪切波产生测量弹性模量时可以测量弹性模量的超声波诊断装置。 超声波诊断装置包括发送和接收回波信号的超声波探头，应变计算单元，其通过辐射第一位移检测光束从身体接收回波信号，并计算区域1中的应变信息，测量位置选择 基于应变信息在区域1内选择区域2的单元，将聚焦光束照射到体内并使组织发生位移的位移产生单元，弹性模量计算单元，其从身体接收回波信号， 辐射第二位移检测光束，检测由聚焦光束产生的剪切波位移，并计算区域2中的弹性模量;以及显示单元，其显示基于区域1中的应变信息的应变图像，以及 弹性模量。

公开(公告)号：US20130109968A1

公开(公告)日：2013-05-02

申请号：US13808255

申请日：2011-07-15

申请人： Takashi Azuma

发明人： Takashi Azuma

IPC分类号： A61B8/14 ,  A61B8/08 ,  A61B8/06 ,  A61B8/00

CPC分类号： A61B8/145 ,  A61B8/06 ,  A61B8/461 ,  A61B8/488 ,  A61B8/5207 ,  A61B8/5269 ,  A61B8/54 ,  G01S7/52046 ,  G01S7/52077 ,  G01S15/8961 ,  G01S15/8979

摘要： Disclosed is an ultrasonic imaging device having an improved signal-to-noise ratio. After A/D conversion, by performing filtering between channels or two-dimensional filtering between channels and along the time axis, reduction in spatial resolution is suppressed as much as possible to thereby improve the signal-to-noise ratio.

摘要翻译： 公开了一种具有改善的信噪比的超声波成像装置。 在A / D转换之后，通过在信道之间进行滤波或者沿时间轴进行二维滤波，尽可能地抑制空间分辨率的降低，从而提高信噪比。