公开(公告)号：US5502384A

公开(公告)日：1996-03-26

申请号：US243907

申请日：1994-05-17

申请人： Chitose Nakaya ,  Yoshitaka Bito ,  Etsuji Yamamoto ,  Hiroshi Nishimura ,  Hiroyuki Takeuchi ,  Shigeru Watanabe ,  Akihiro Miyajima ,  Hitoshi Arai

发明人： Chitose Nakaya ,  Yoshitaka Bito ,  Etsuji Yamamoto ,  Hiroshi Nishimura ,  Hiroyuki Takeuchi ,  Shigeru Watanabe ,  Akihiro Miyajima ,  Hitoshi Arai

IPC分类号： A61B5/055 ,  G01R33/28 ,  G01R33/561 ,  G01R33/565 ,  G01R33/20

CPC分类号： G01R33/565 ,  G01R33/561

摘要： In an image reconstruction method in a nuclear magnetic resonance imaging apparatus, the method comprises first and second steps to get detected data S.sub.I for at least about half of region inclusive of an origin and data S.sub.IV in a region symmetric with respect to a line passing through an origin on one of axes from the detected region in the acquired data space and parallel to the other axis, respectively, third and fourth steps to perform inverse Fourier transform on the data S.sub.I and S.sub.IV, respectively, a fifth step to get a complex conjugate value of the result obtained from Step 3, a sixth step to get a complex conjugate value of the result obtained from Step 4, a seventh step to calculate a phase map from the results obtained from the second, third, fourth, fifth and sixth steps, an eighth step to multiply the result obtained from step 6 by the phase map obtained from step 7 and to obtain a phase corrected data, and a ninth step to sum the result obtained from the third step and the result obtained from the eighth step. The method can thus obtain the whole reconstructed image.

摘要翻译： 在核磁共振成像装置中的图像重建方法中，该方法包括第一和第二步骤，用于在相对于通过的线对称的区域中获得包含原点和数据SIV的区域的至少约一半的检测数据SI 在获取的数据空间中的检测区域中的一个轴上的原点，并且平行于另一个轴的原点;第三和第四步骤，分别对数据SI和SIV执行逆傅里叶变换，第五步骤以获得复共轭 从步骤3获得的结果的值，第六步骤，获得从步骤4获得的结果的复共轭值，第七步骤，从根据从第二，第三，第四，第五和第六步骤获得的结果计算相位图 第八步，将从步骤6获得的结果乘以从步骤7获得的相位图，并获得相位校正数据;第九步骤，将从第三步骤获得的结果与res 从第八步获得。 因此，该方法可以获得整个重建图像。

公开(公告)号：US5394872A

公开(公告)日：1995-03-07

申请号：US44778

申请日：1993-04-12

申请人： Kenji Takiguchi ,  Hidemi Shiono ,  Hiroyuki Itagaki ,  Etsuji Yamamoto

发明人： Kenji Takiguchi ,  Hidemi Shiono ,  Hiroyuki Itagaki ,  Etsuji Yamamoto

IPC分类号： A61B5/055 ,  G01R33/48 ,  G01R33/561 ,  G01R33/563 ,  G01R33/20

CPC分类号： G01R33/563 ,  G01R33/5618 ,  G01R33/56333

摘要： In a magnetic resonance imagining method, using an effect that a fluid flows out of a plane where it is selectively excited between the time of applying a 90.degree. radio frequency pulse and the time of applying of a 180.degree. radio frequency pulse, two, images are separately constructed from multiple echo signals which are sampled before applying the 180.degree. radio frequency pulse and multiple echo signals which are sampled after applying the 180.degree. radio frequency pulse. An image of the fluid flow and an image of a static part are separated from each other based on a difference between the two constructed images.

摘要翻译： 在磁共振想象方法中，使用流体从施加90°射频脉冲的时间和施加180°射频脉冲的时间之间选择性激发的平面流出的效果，两个图像 分别由在应用180°射频脉冲之前被采样的多个回波信号和在施加180°射频脉冲之后被采样的多个回波信号构成。 基于两个构造的图像之间的差异，流体流动的图像和静态部分的图像彼此分离。

公开(公告)号：US4458172A

公开(公告)日：1984-07-03

申请号：US406015

申请日：1982-08-06

申请人： Hiroshi Takeuchi ,  Yukio Ito ,  Etsuji Yamamoto ,  Shigeru Jyomura ,  Sakichi Ashida

发明人： Hiroshi Takeuchi ,  Yukio Ito ,  Etsuji Yamamoto ,  Shigeru Jyomura ,  Sakichi Ashida

IPC分类号： B06B1/06 ,  H01L41/187 ,  G10K11/36 ,  H01L41/18

CPC分类号： B06B1/0622 ,  H01L41/187

摘要： An ultrasonic probe includes a resonator made of a piezoelectric ceramic material which is obtained by subjecting a ceramic composition containing 44.7 to 46.3 mol % of PbO, 50.9 to 51.7 mol % of TiO.sub.2, 1.8 to 2.7 mol % of Sm.sub.2 O.sub.3 and 0.5 to 1.0 mol % of MnO.sub.2 to poling treatment in such a manner that the ceramic composition is applied with an electric field of 60 to 80 kV/cm at a temperature of 130.degree. to 160.degree. C.

摘要翻译： 超声波探头包括由压电陶瓷材料制成的谐振器，该共振器通过使含有44.7〜46.3摩尔％的PbO，50.9〜51.7摩尔％的TiO 2，1.8〜2.7摩尔％的Sm 2 O 3和0.5〜1.0摩尔％的陶瓷组合物， 的MnO 2以使陶瓷组合物在130〜160℃的温度下施加60〜80kV / cm的电场的方式进行极化处理。

公开(公告)号：US07136669B2

公开(公告)日：2006-11-14

申请号：US10935034

申请日：2004-09-07

申请人： Etsuji Yamamoto

发明人： Etsuji Yamamoto

IPC分类号： H04B1/00

CPC分类号： H04B1/401

摘要： A radio communication apparatus including an operator control section with at least one actuator for appointing a function setting that may be recorded in a first data structure and thereafter detected and recorded in a second data structure wherein a microprocessor may compare the two settings and issue a modification notification indicating that the initial setting has been changed.

摘要翻译： 一种无线电通信装置，包括具有至少一个致动器的操作员控制部分，用于指定可以记录在第一数据结构中的功能设置，然后以第二数据结构检测和记录，其中微处理器可以比较两个设置并发布修改 指示初始设置已更改的通知。

公开(公告)号：US06788955B2

公开(公告)日：2004-09-07

申请号：US09997119

申请日：2001-11-28

申请人： Etsuji Yamamoto

发明人： Etsuji Yamamoto

IPC分类号： H04Q720

CPC分类号： H04B1/401

摘要： In a radio communication apparatus according to the present invention, an expansion of the functional capabilities to allow for checking whether functional settings made for a previous communication are different from functional settings for a current communication. Then, if so, notification is made so that the functional settings can be restored to their original states. When an operator sets status registration mode by means of predetermined keys on an operator section for the occasion of an operator change, for example, the micro controller unit (MCU) records functional setting data at that point in the data table of a RAM. Then, when the operator sets a status confirmation mode by the use of predetermined keys in order to resume communication, the MCU records functional setting data at that point corresponding to the functional setting data for the previous communication and the functional items associated therewith. Then, the MCU makes a comparison between the current functional setting data and the previous functional setting data, for each functional item. If the current functional setting data does not coincide with the previous functional setting data, notification is made by the use of an indicator lamp and a liquid crystal display section.

摘要翻译： 在根据本发明的无线电通信装置中，扩展功能能力以允许检查对于先前通信进行的功能设置是否不同于当前通信的功能设置。 然后，如果是这样，就进行通知，使得功能设置可以恢复到其原始状态。 例如，当操作员在操作员部分为预定的键设置状态登记模式时，例如，微控制器单元（MCU）记录RAM的数据表中该点的功能设置数据。 然后，当操作者通过使用预定密钥设置状态确认模式以恢复通信时，MCU记录在与先前通信的功能设置数据相对应的那一点处的功能设置数据和与其相关联的功能项。 然后，对于每个功能项目，MCU对当前功能设置数据和先前功能设置数据进行比较。 如果当前的功能设定数据与先前的功能设定数据不一致，则通过使用指示灯和液晶显示部进行通知。

公开(公告)号：US06650529B1

公开(公告)日：2003-11-18

申请号：US09470089

申请日：1999-12-21

申请人： Satoshi Murata ,  Etsuji Yamamoto ,  Kenji Ozawa ,  Minoru Tamada ,  Yoshihiro Nishinaga

发明人： Satoshi Murata ,  Etsuji Yamamoto ,  Kenji Ozawa ,  Minoru Tamada ,  Yoshihiro Nishinaga

IPC分类号： H01F1502

CPC分类号： H01F41/041 ,  H01F17/045

摘要： An inductor includes a bar-shaped ferrite core and a spiral coil. The spiral coil is formed by removing a portion of a conductive film formed at least around the peripheral surface of the ferrite core. The surface of the ferrite core is impregnated with an insulating glass before the conductive film is formed. The content of the glass is preferably about 0.1% to about 20% by weight of the ferrite core. The ferrite core is preferably an Ni—Zn-based ferrite core.

摘要翻译： 电感器包括棒状铁氧体磁芯和螺旋线圈​​。 螺旋线圈通过去除至少在铁氧体磁芯的外周表面形成的导电膜的一部分而形成。 在形成导电膜之前，用绝缘玻璃浸渍铁氧体磁芯的表面。 玻璃的含量优选为铁氧体磁芯的约0.1重量％至约20重量％。 铁氧体磁芯优选为Ni-Zn系铁氧体磁芯。

公开(公告)号：US06535093B1

公开(公告)日：2003-03-18

申请号：US09671054

申请日：2000-09-28

申请人： Satoshi Murata ,  Hideyuki Mihara ,  Etsuji Yamamoto ,  Minoru Tamada

发明人： Satoshi Murata ,  Hideyuki Mihara ,  Etsuji Yamamoto ,  Minoru Tamada

IPC分类号： H01F2702

CPC分类号： H01F17/0033 ,  H01F17/045 ,  H01F27/292 ,  H01F27/34

摘要： An inductor includes input-output terminal electrodes, a coil conductor connected between the input-output terminal electrodes, and dividing grooves arranged to extend outwardly of the coil conductor from the end portions of the coil conductor over the terminal electrodes so as to be substantially perpendicular to the winding direction of the spiral coil conductor.

摘要翻译： 电感器包括输入输出端子电极，连接在输入 - 输出端子电极之间的线圈导体和布置成从线圈导体的端部延伸到线圈导体的外侧的分隔槽，其在端子电极之上以基本上垂直 到螺旋线圈导体的卷绕方向。

公开(公告)号：US5808467A

公开(公告)日：1998-09-15

申请号：US653315

申请日：1996-05-24

申请人： Hisaaki Ochi ,  Yo Taniguchi ,  Kenichi Okajima ,  Yoshitaka Bito ,  Etsuji Yamamoto

发明人： Hisaaki Ochi ,  Yo Taniguchi ,  Kenichi Okajima ,  Yoshitaka Bito ,  Etsuji Yamamoto

IPC分类号： G01R33/3415 ,  G01V3/00

CPC分类号： G01R33/3415

摘要： In the inspection system using nuclear magnetic resonance comprising magnetic field generators such as a static magnetic field, a gradient magnetic field, and an RF magnetic field, an RF probe for detecting an NMR signal from a subject, and a calculator for operating a detected signal by the RF probe, a RF probe for detection comprises a plurality of coils arranged in the predetermined direction and includes a plurality of switching elements and the inspection system selects two or more coils from the plurality of coils for each measurement of NMR signals, turns the switching elements connected to the selected coils ON, turns the switching elements connected to coils other than the selected coils OFF, changes a combination of two or more coils for each measurement of NMR signals, and changes the sensitivity distribution of the RF probe in the predetermined direction according to the Wavelet basis function for each measurement of NMR signals.

摘要翻译： 在使用包括诸如静磁场，梯度磁场和RF磁场的磁场发生器的核磁共振的检查系统中，用于检测来自被检体的NMR信号的RF探针和用于操作检测信号的计算器 通过RF探头，用于检测的RF探针包括沿预定方向布置的多个线圈，并且包括多个开关元件，并且检查系统从每个测量NMR信号中选择来自多个线圈的两个或更多个线圈， 连接到所选择的线圈的开关元件接通，将与所选线圈以外的线圈相连的开关元件断开，对每个NMR信号的测量改变两个或更多个线圈的组合，并将RF探针的灵敏度分布改变为预定的 根据每个NMR信号测量的小波基函数的方向。

公开(公告)号：US5559434A

公开(公告)日：1996-09-24

申请号：US516892

申请日：1995-08-18

申请人： Tetsuhiko Takahashi ,  Etsuji Yamamoto ,  Yoshiki Murakami ,  Yoshikuni Matsunaga

发明人： Tetsuhiko Takahashi ,  Etsuji Yamamoto ,  Yoshiki Murakami ,  Yoshikuni Matsunaga

IPC分类号： G01R33/34 ,  G01R33/36 ,  G01V3/00

CPC分类号： G01R33/34046 ,  G01R33/3642 ,  G01R33/3657 ,  G01R33/3678

摘要： An MRI RF coil including first and second ring elements having a plurality of peripheral segments connected in ring shape which are apart from each other along a common vertical axial line. The RF coil also includes a plurality of axial conductive segments for connecting the first and second ring elements electrically to each other at the contacts of the plurality of peripheral segments with a plurality of current loops being formed by neighboring axial conductive segments and two peripheral segments connected thereby. Further, at least one control signal feeding point is positioned at any one of the peripheral segments of the first or second ring elements.

摘要翻译： 一种MRI RF线圈，其包括第一和第二环形元件，所述第一和第二环形元件具有连接成环形的多个周边段，它们沿着共同的垂直轴线彼此分开。 RF线圈还包括多个轴向导电段，用于在多个周边段的触点处将第一和第二环形元件彼此电连接，多个电流环由相邻的轴向导电段形成，并且两个外围段连接 从而。 此外，至少一个控制信号馈送点位于第一或第二环形元件的任何一个外围段上。

公开(公告)号：US5539311A

公开(公告)日：1996-07-23

申请号：US160807

申请日：1993-12-03

申请人： Kenji Takiguchi ,  Hiroyuki Itagaki ,  Hidemi Shiono ,  Etsuji Yamamoto

发明人： Kenji Takiguchi ,  Hiroyuki Itagaki ,  Hidemi Shiono ,  Etsuji Yamamoto

IPC分类号： G01R33/561 ,  G01V3/00

CPC分类号： G01R33/56554

摘要： In magnetic resonance imaging, a first echo train is obtained by applying a readout gradient magnetic field to a region of interest to be imaged and periodically inverting the polarity of the readout gradient magnetic field, without applying an encoding gradient magnetic field to the region of interest. A periodic change of phase shift of the first echo train is detected from the first echo train. Information indicating phase shifts of all of the echoes in the first echo train is obtained using the periodic change of phase shift. A second echo train is obtained by applying a readout gradient magnetic field and an encoding magnetic field to the region of interest and periodically inverting the polarity of the readout gradient magnetic field. Phases of echoes in the second echo train are corrected using the information indicating phase shifts of all of the echoes in the first echo train.

摘要翻译： 在磁共振成像中，通过将读出梯度磁场施加到要成像的感兴趣区域并周期性地反转读出梯度磁场的极性，而不对感兴趣的区域施加编码梯度磁场，获得第一回波串 。 从第一回波列检测第一回波串的相移的周期性变化。 使用相移的周期性变化来获得指示第一回波列中的所有回波的相移的信息。 通过将读出梯度磁场和编码磁场施加到感兴趣的区域并周期性地反转读出梯度磁场的极性来获得第二回波串。 使用指示第一回波列中的所有回波的相移的信息来校正第二回波列中的回波相位。