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：US5528145A

公开(公告)日：1996-06-18

申请号：US275348

申请日：1994-07-15

申请人： Satoshi Hirata ,  Yoshitaka Bito ,  Etsuji Yamamoto

发明人： Satoshi Hirata ,  Yoshitaka Bito ,  Etsuji Yamamoto

IPC分类号： G01R33/561 ,  G01R33/565 ,  G01R33/20

CPC分类号： G01R33/5615 ,  G01R33/5616 ,  G01R33/56527 ,  G01R33/56554

摘要： A high-speed magnetic resonance spectroscopic imaging method for obtaining information relating to an object placed in a space by irradiating the object placed in the space applied with a static magnetic field and field gradients in three different directions so as to excite a nuclear spin in the object. At least one of the field gradients is applied while inverting a sign thereof periodically and a magnetic resonance signal generated by excitation of the nuclear spin is measured. A Fourier transform is applied to the measured magnetic resonance signal thereby to obtain a chemical shift image and a measurement spectral bandwidth is set to a value not larger than a frequency difference between two different chemical shifts having frequencies remotest from each other among a plurality of chemical shifts intended to be measured, the measurement spectral bandwidth being determined by a reciprocal of an inversion period of the field gradient which is applied while inverting a sign thereof periodically. The method enables setting of spatial resolution and spectral bandwidth independently.

摘要翻译： 一种高速磁共振光谱成像方法，用于通过照射放置在施加有三个不同方向的静磁场和场梯度的空间中的物体来获得与放置在空间中的物体相关的信息，以便激发在 目的。 应用场梯度中的至少一个，同时周期性地反转其符号，并且测量由核自旋的激发产生的磁共振信号。 对所测量的磁共振信号进行傅里叶变换，从而获得化学位移图像，并且将测量谱带宽设定为不同于多个化学物质中具有彼此偏离的频率的两个不同化学位移之间的频率差的值 测量频谱带宽由周期性地反转其符号时施加的场梯度的反转周期的倒数确定。 该方法可以独立设置空间分辨率和光谱带宽。

公开(公告)号：US5489847A

公开(公告)日：1996-02-06

申请号：US252624

申请日：1994-06-01

申请人： Takayuki Nabeshima ,  Tetsuhiko Takahashi ,  Yoshikuni Matsunaga ,  Etsuji Yamamoto ,  Kageyoshi Katakura

发明人： Takayuki Nabeshima ,  Tetsuhiko Takahashi ,  Yoshikuni Matsunaga ,  Etsuji Yamamoto ,  Kageyoshi Katakura

IPC分类号： A61B5/055 ,  G01R33/34 ,  G01R33/36 ,  G01V3/00

CPC分类号： G01R33/34053 ,  G01R33/3415 ,  G01R33/365 ,  G01R33/3678 ,  G01R33/3628

摘要： An RF probe for MRI, in which a plurality of unit coils including conductive loops having resonance capacitors and inductors connected with the conductive loops in series are arranged so as to be distant from each other with a predetermined distance, electromagnetic coupling being produced between at least two inductors to remove electromagnetic coupling between the unit coils.

摘要翻译： 一种用于MRI的RF探针，其中包括具有谐振电容器的导电回路和串联的导电回路的电感器的多个单位线圈布置成彼此远离预定距离，至少在至少 两个电感器去除单元线圈之间的电磁耦合。

公开(公告)号：US5382902A

公开(公告)日：1995-01-17

申请号：US985645

申请日：1992-12-07

申请人： Yo Taniguchi ,  Etsuji Yamamoto

发明人： Yo Taniguchi ,  Etsuji Yamamoto

IPC分类号： A61B5/055 ,  G01R33/32 ,  G01R33/563 ,  G01R33/567 ,  G01V3/00

CPC分类号： G01R33/5676

摘要： A magnetic resonance imaging method for obtaining an image of an object laid in a space in which a static magnetic field is applied, so as to substantially eliminate motional artifacts. The method includes sequentially measuring a plurality of magnetic resonance views with a plurality of encodings by repeating a measurement sequence of exciting nuclear spins in said object, applying a phase-encoding field gradient along a first direction with programmed time integral to encode the excited spins, and detecting the encoded spins in the presence of a readout field gradient along a second direction to generate a magnetic resonance view so that measurements of magnetic resonance views with at least low-order encoding are obtained during the repetition of the measurement sequence. Thereafter respective magnetic resonance views are subjected to a first Fourier transformation so as to generate a plurality of projection views with a plurality of encodings forming a data matrix in a hybrid domain, displacements in respective projection views due to motion of the object are corrected using displacement information obtained from projection views with low-order encodings so as to generate a corrected data matrix in the hybrid domain, and the corrected data matrix is subjected to a second Fourier transformation so as to generate the image of the object.

摘要翻译： 一种磁共振成像方法，用于获得放置在施加静磁场的空间中的物体的图像，以便基本上消除运动伪像。 该方法包括通过重复所述物体中激发的核自旋的测量序列来顺序地测量具有多个编码的多个磁共振视图，沿着第一方向施加相位编码场梯度以编程的时间积分来编码激励的自旋， 以及在沿着第二方向存在读出场梯度的情况下检测编码的旋转以产生磁共振视图，使得在重复测量序列期间获得具有至少低阶编码的磁共振视图的测量。 然后对各磁共振视图进行第一傅里叶变换，以便在混合域中产生多个形成数据矩阵的编码的多个投影视图，由于对象的运动而在各个投影视图中的位移使用位移进行校正 从具有低阶编码的投影视图获得的信息，以便在混合域中产生校正数据矩阵，并且对经校正的数据矩阵进行第二傅立叶变换，以便生成对象的图像。

公开(公告)号：US4875010A

公开(公告)日：1989-10-17

申请号：US174424

申请日：1988-03-28

申请人： Koichi Yokosawa ,  Etsuji Yamamoto ,  Hideaki Nakane ,  Masao Yabusaki ,  Yukiko Ogura

发明人： Koichi Yokosawa ,  Etsuji Yamamoto ,  Hideaki Nakane ,  Masao Yabusaki ,  Yukiko Ogura

IPC分类号： A61B5/055 ,  A61B10/00 ,  G01R33/035 ,  G01R33/32 ,  G01R33/36

CPC分类号： G01R33/326 ,  G01R33/0358

摘要： In a signal detecting circuit of, for example, an NMR apparatus, a signal transmission path transmits an AC magnetic flux signal to be superposed on a DC magnetic field whose strength does not change with time during a period of signal detection. The signal transmission path comprises a superconducting closed loop including a receiving coil receiving the AC magnetic flux signal, an input coil applying the received AC magnetic flux signal as an input to a flux meter, and a variable resistor replacing part of the superconducting closed loop and having its resistance value changed in relation to a change in the strength of the DC magnetic field.

摘要翻译： 在例如NMR装置的信号检测电路中，在信号检测期间，信号传输路径传输要叠加在强度不随时间变化的直流磁场上的交流磁通信号。 信号传输路径包括超导闭环，包括接收交流磁通信号的接收线圈，输入线圈将接收到的交流磁通信号作为输入馈送到通量计，以及替代部分超导闭环的可变电阻器，以及 其电阻值相对于直流磁场强度的变化而变化。

公开(公告)号：US4803190A

公开(公告)日：1989-02-07

申请号：US29645

申请日：1987-03-24

申请人： Kohei Sarumaru ,  Etsuji Yamamoto

发明人： Kohei Sarumaru ,  Etsuji Yamamoto

IPC分类号： B01J23/881 ,  B01J23/88 ,  B01J23/883 ,  B01J27/192 ,  B01J37/04 ,  C07B61/00 ,  C07C45/00 ,  C07C45/35 ,  C07C45/37 ,  C07C47/22 ,  C07C51/25 ,  C07C57/05 ,  C07C67/00 ,  C07C253/26 ,  C07C255/08 ,  B01J21/00 ,  B01J23/16 ,  B01J27/18

CPC分类号： B01J23/8876 ,  B01J23/002 ,  B01J27/192 ,  C07C253/26 ,  C07C45/35 ,  C07C45/37 ,  C07C51/252 ,  B01J2523/00 ,  Y02P20/52

摘要： In the production of a Mo-Bi-Na composite oxide catalyst by the process comprising incorporating compounds as respective element sources into a composite and subjecting the composite to heating treatment in an aqueous system, bismuth oxide and/or bismuth subcarbonate are/is used as a Bi source copmpound and at least a part of the heat treatment is conducted at a temperature of 450.degree. to 600.degree. C. The activity of the catalyst is significantly improved by introducing Bi in the form of the specified water insoluble compound into the catalyst.

摘要翻译： 在制备Mo-Bi-Na复合氧化物催化剂的过程中，包括将化合物作为各元素源并入复合材料中，并使复合材料在水性体系中进行加热处理，将氧化铋和/或亚碳酸铋用作 Bi源组成，至少一部分热处理在450〜600℃的温度下进行。通过将特定的水不溶性化合物的Bi引入催化剂，催化剂的活性显着提高。

公开(公告)号：US20050026645A1

公开(公告)日：2005-02-03

申请号：US10935034

申请日：2004-09-07

申请人： Etsuji Yamamoto

发明人： Etsuji Yamamoto

IPC分类号： H04B1/38 ,  H04Q7/20

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：US06557558B1

公开(公告)日：2003-05-06

申请号：US09648453

申请日：2000-08-28

申请人： Fujio Tajima ,  Masakatsu Fujie ,  Hiroshi Takeuchi ,  Etsuji Yamamoto ,  Koichi Sano ,  Kazutoshi Kan

发明人： Fujio Tajima ,  Masakatsu Fujie ,  Hiroshi Takeuchi ,  Etsuji Yamamoto ,  Koichi Sano ,  Kazutoshi Kan

IPC分类号： A61B1900

CPC分类号： A61B8/565 ,  A61B17/00 ,  A61B17/02 ,  A61B17/0281 ,  A61B34/10 ,  A61B34/70 ,  A61B90/36 ,  A61B2017/00022 ,  A61B2017/306 ,  G06F19/00

摘要： A medical treatment apparatus capable of performing exact medical treatment is provided. The medical treatment apparatus includes detection means for detecting the condition of a human body to be treated, medical treatment means for treating said human body, and display means for displaying results of computing by computing means for computing a plan for said medical treatment on the basis of detection results from said detection means.

摘要翻译： 提供能够进行精确医疗的医疗处理装置。 医疗处理装置包括检测被检体人的状况的检测单元，对所述人体进行处理的医疗处理单元，以及显示单元，用于显示用于计算用于所述医疗处理的计划的计算单元的计算结果 的来自所述检测装置的检测结果。

公开(公告)号：US5751600A

公开(公告)日：1998-05-12

申请号：US671255

申请日：1996-06-26

申请人： Hisaaki Ochi ,  Etsuji Yamamoto ,  Kumio Sawaya ,  Saburo Adachi

发明人： Hisaaki Ochi ,  Etsuji Yamamoto ,  Kumio Sawaya ,  Saburo Adachi

IPC分类号： G01R29/08 ,  A61B5/055 ,  G01R29/10 ,  G06F17/50

CPC分类号： G01R29/10

摘要： Analysis of electromagnetics for an antenna analyzes a current on a conductor having a junction between a linear conductor and a planar conductor relying upon a moment method. A planar dipole segment 9 includes a planar monopole 91-2 in which the current flows in the same direction as the current flowing through part of a quadrangle 41-2-4 of a radial segment 41, and a planar monopole 91-1 in which the current flows in the same direction as the current flowing in a planar monopole 35-1 of a planar dipole segment 35. In the vicinity of the junction between the linear conductor and the planar conductor, currents are expressed that flow through the vicinity of the junction where three segments consisting of a radial segment and two planar dipole segments are overlapped one upon the other.

摘要翻译： 用于天线的电磁学分析根据瞬时方法分析具有线性导体和平面导体之间的结的导体上的电流。 平面偶极子段9包括平面单极子91-2，其中电流沿与径向段41的四边形41-2-4的一部分流动的电流相同的方向流动，平面单极子91-1 电流以与在平面偶极子段35的平面单极子35-1中流动的电流相同的方向流动。在线性导体和平面导体之间的接合点附近，表示流过 其中由径向段和两个平面偶极子段组成的三个区段彼此重叠。