公开(公告)号：US20090118617A1

公开(公告)日：2009-05-07

申请号：US12348135

申请日：2009-01-02

Applicant: Takashi Azuma ,  Shin-ichiro Umemura ,  Hirotaka Baba

Inventor： Takashi Azuma ,  Shin-ichiro Umemura ,  Hirotaka Baba

IPC: A61B8/14

CPC classification number: A61B8/00 ,  G01S7/52077 ,  G01S15/8995

Abstract: In an ultrasonic imaging device having an image synthesizing unit, correlation between images to be synthesized is computed for balancing between an improvement in contrast resolution and an improvement in spatial resolution, and an amount of displacement between the images is computed. When the amount of displacement is large, the signals after envelop detection are synthesized. When the amount of displacement is small, RF signals are synthesized. Alternatively, the mixing frequency may be variable according to the amount of displacement, and the balance between an improvement in spatial resolution and that in contract resolution is achieved according to a degree of the positional displacement.

Abstract translation: 在具有图像合成单元的超声波成像装置中，计算要合成的图像之间的相关性，以在对比度分辨率的提高和空间分辨率的改善之间进行平衡，并且计算图像之间的位移量。 当位移量大时，合成包络检测后的信号。 当位移量小时，合成RF信号。 或者，混合频率可以根据位移量而变化，并且根据位置偏移的程度来实现空间分辨率和合同分辨率的改善之间的平衡。

公开(公告)号：US07473226B2

公开(公告)日：2009-01-06

申请号：US10562465

申请日：2004-06-09

Applicant: Takashi Azuma ,  Shin-ichiro Umemura ,  Hirotaka Baba

Inventor： Takashi Azuma ,  Shin-ichiro Umemura ,  Hirotaka Baba

IPC: A61B8/00

CPC classification number: A61B8/00 ,  G01S7/52077 ,  G01S15/8995

Abstract: In an ultrasonic imaging device having an image synthesizing unit, correlation between images to be synthesized is computed for balancing between an improvement in contrast resolution and an improvement in spatial resolution, and an amount of displacement between the images is computed. When the amount of displacement is large, the signals after envelop detection are synthesized. When the amount of displacement is small, RF signals are synthesized. Alternatively, the mixing frequency may be variable according to the amount of displacement, and the balance between an improvement in spatial resolution and that in contract resolution is achieved according to a degree of the positional displacement.

Abstract translation: 在具有图像合成单元的超声波成像装置中，计算要合成的图像之间的相关性，以在对比度分辨率的提高和空间分辨率的改善之间进行平衡，并且计算图像之间的位移量。 当位移量大时，合成包络检测后的信号。 当位移量小时，合成RF信号。 或者，混合频率可以根据位移量而变化，并且根据位置偏移的程度来实现空间分辨率和合同分辨率的改善之间的平衡。

公开(公告)号：US07473225B2

公开(公告)日：2009-01-06

申请号：US10618750

申请日：2003-07-15

Applicant: Takashi Azuma ,  Shin-ichiro Umemura ,  Yuichi Miwa

Inventor： Takashi Azuma ,  Shin-ichiro Umemura ,  Yuichi Miwa

IPC: A61B8/00

CPC classification number: G01S7/52049 ,  G01S7/52026 ,  G01S15/899 ,  G10K11/346

Abstract: There are provided an ultrasonic imaging system and method which can correct a phase shift effect to image a real change in acoustic impedance in a living body.An ultrasonic probe transmits an ultrasonic beam to an object to receive an echo. A transmit beamformer transmits a transmit signal via transmit/receive SWs to the probe in delay time matched with a transmit focal point according to the signal under the control of a control system. An ultrasonic signal returned from the object to the probe is converted to an electric signal by the probe to be transmitted via the transmit/receive SWs to a complex receive beamformer. The complex receive beamformer performs dynamic focus adjusting delay time according to reception timing. A phase shift correction part uses the output of the complex beamformer outputting beams of a real part and an imaginary part to correct phase shift. due to frequency-dependent attenuation, correct phase shift in the lateral direction of the beam, or correct both. After phase shift correction, an acoustic impedance change amount operation part obtains a derivative about the space position of acoustic impedance. The signal subject to filtering processing is image displayed via a scan converter on a display part.

Abstract translation: 提供了一种超声波成像系统和方法，其可以校正相移效应以对活体中的声阻抗的真实变化进行成像。 超声探头将超声波束发送到物体以接收回波。 发射波束形成器根据在控制系统的控制下的信号，以与发射焦点相匹配的延迟时间，经由发射/接收SW向发射器发射发射信号。 从物体返回到探头的超声波信号被探头转换成电信号，以通过发射/接收SW发送到复接收波束形成器。 复接收波束形成器根据接收定时执行动态聚焦调整延迟时间。 相移校正部分使用输出实部和虚部的波束形成器的输出来校正相移。 由于频率依赖的衰减，在横向的方向上的正确相移，或者纠正两者。 在相移校正之后，声阻抗变化量操作部分获得关于声阻抗的空间位置的导数。 经过滤波处理的信号是通过显示部分上的扫描转换器显示的图像。

公开(公告)号：US20080208054A1

公开(公告)日：2008-08-28

申请号：US11947020

申请日：2007-11-29

Applicant: Takashi Azuma ,  Kenichi Kawabata

Inventor： Takashi Azuma ,  Kenichi Kawabata

IPC: A61B8/13

CPC classification number: A61B8/463 ,  A61B8/481 ,  G01S7/52022 ,  G01S7/52038 ,  G01S15/102 ,  G01S15/895 ,  G01S15/8977

Abstract: An ultrasonic imaging apparatus, detecting a signal peculiar to a contrast agent emitted when liquid formed in a fine particle vaporizes due to ultrasonic waves and imaging space distribution thereof. A narrow band is used for transmission, a broad band is used for a received signal, and in a state of high space resolution of the received signal, a transmission signal and the received signal are discriminated.

Abstract translation: 一种超声波成像装置，用于检测由于超微波而产生的微粒子中形成的液体发生的造影剂特有的信号及其成像空间分布。 窄带用于传输，宽频带用于接收信号，并且在接收信号的高空间分辨率的状态下，识别发射信号和接收信号。

公开(公告)号：US20070068266A1

公开(公告)日：2007-03-29

申请号：US11492961

申请日：2006-07-26

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

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

IPC: G01L9/12

CPC classification number: G01L9/0073 ,  B60C23/0408 ,  G01D5/2417 ,  G01L9/12 ,  G01L27/007

Abstract: 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.

Abstract translation: 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

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

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

IPC: H01L41/00

CPC classification number: B06B1/0292

Abstract: 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.

Abstract translation: 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

Applicant: Takashi Azuma ,  Makoto Suzuki ,  Nobuhiro Horiuchi

Inventor： Takashi Azuma ,  Makoto Suzuki ,  Nobuhiro Horiuchi

IPC: D21F13/00

CPC classification number: D21F13/00

Abstract: 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.

Abstract translation: 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

Applicant: Takashi Azuma

Inventor： Takashi Azuma

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

CPC classification number: G03G15/0853

Abstract: 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.

Abstract translation: 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

Applicant: Marie Tabaru ,  Takashi Azuma ,  Hideki Yoshikawa ,  Kunio Hashiba

Inventor： Marie Tabaru ,  Takashi Azuma ,  Hideki Yoshikawa ,  Kunio Hashiba

IPC: A61B8/00 ,  A61B8/08 ,  G01S7/52

CPC classification number: A61B8/08 ,  A61B8/0825 ,  A61B8/0891 ,  A61B8/485 ,  G01S7/52049 ,  G01S7/52071 ,  G01S7/52073

Abstract: 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.

Abstract translation: 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

Applicant: Hideki Yoshikawa ,  Takashi Azuma

Inventor： Hideki Yoshikawa ,  Takashi Azuma

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

CPC classification number: 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

Abstract: 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.

Abstract translation: 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）。