公开(公告)号：US4604370A

公开(公告)日：1986-08-05

申请号：US753136

申请日：1985-07-09

申请人： Kohei Sarumaru ,  Takeshi Shibano ,  Yoichi Ishii ,  Etsuji Yamamoto

发明人： Kohei Sarumaru ,  Takeshi Shibano ,  Yoichi Ishii ,  Etsuji Yamamoto

IPC分类号： C07C47/22 ,  B01J23/92 ,  B01J23/94 ,  B01J27/28 ,  B01J38/12 ,  C07B61/00 ,  C07C45/00 ,  C07C45/35 ,  C07C67/00

CPC分类号： B01J38/12 ,  B01J23/92 ,  C07C45/35 ,  Y02P20/584

摘要： A process for regenerating a Mo.Bi-based multi-oxide catalyst the catalytic performance of which has deteriorated as a result of its use in vapor-phase catalytic oxidation of propylene or isobutene to prepare acrolein or methacrolein, respectively, which process comprises: heating the deteriorated Mo.Bi-based multi-oxide catalyst in an atmosphere consisting essentially of air at a temperature of 380.degree. C. to 540.degree. C., so as to attain at least partial restoration of the catalytic performance thereof.

摘要翻译： 一种用于再生基于Mo.Bi的多氧化物催化剂的方法，其催化性能由于其在丙烯或异丁烯的气相催化氧化中的用途而分别降低，以制备丙烯醛或异丁烯醛，该方法包括：加热 在基本上由380℃至540℃的空气组成的气氛中的Mo.Bi基多氧化物催化剂劣化，从而至少部分恢复其催化性能。

公开(公告)号：US06963298B2

公开(公告)日：2005-11-08

申请号：US10152638

申请日：2002-05-23

申请人： Masanori Otsuka ,  Kazuo Yamakido ,  Etsuji Yamamoto ,  Shinya Sano

发明人： Masanori Otsuka ,  Kazuo Yamakido ,  Etsuji Yamamoto ,  Shinya Sano

IPC分类号： H03M1/36 ,  H03M1/12

CPC分类号： H03M1/363

摘要： An AD converter which uses no buffer for receiving the input signals or uses the buffer having relaxed requirements concerning the range of input signals and the output impedance. Voltage at the connection points of a resistor ladder in which a plurality of resistor elements are connected in series, are compared with a reference voltage by a plurality of voltage comparators, a first current circuit is provided on the high potential side of the resistor ladder, a second current circuit is provided on the low potential side thereof, and analog input voltages are fed by providing an input terminal at any place of the resistor ladder except both ends thereof.

摘要翻译： AD转换器，其不使用缓冲器来接收输入信号，或者使用具有放宽的关于输入信号的范围和输出阻抗的要求的缓冲器。 将多个电阻元件串联连接的电阻梯的连接点的电压与多个电压比较器与参考电压进行比较，在电阻梯的高电位侧设置第一电流电路， 在其低电位侧提供第二电流电路，并且通过在除电阻梯的两端的任何位置设置输入端子来馈送模拟输入电压。

公开(公告)号：US5602480A

公开(公告)日：1997-02-11

申请号：US422234

申请日：1995-04-14

申请人： Yukari Onodera ,  Etsuji Yamamoto ,  Hiroyuki Itagaki ,  Yo Taniguchi

发明人： Yukari Onodera ,  Etsuji Yamamoto ,  Hiroyuki Itagaki ,  Yo Taniguchi

IPC分类号： G01R33/3875 ,  G01R33/54 ,  G01R33/20

CPC分类号： G01R33/3875 ,  G01R33/4835

摘要： An inspection method by means of an inspection apparatus using nuclear magnetic resonance and having magnetic field generating apparatus for generating a static magnetic field, gradient magnetic fields and an RF magnetic field; magnetic field generating apparatus by means of additional shim coils, which vary homogeneity of the static magnetic field by varying current flowing therethrough; signal detecting apparatus for detecting nuclear magnetic resonance signals from an object to be inspected; an apparatus for processing signals detected by the signal detecting apparatus; and control apparatus for controlling currents flowing through the shim coils, which method using nuclear magnetic resonance comprises a step of storing shim currents corresponding to each of a plurality of slices, capable of improving homogeneity of the static magnetic field for each of the plurality of slices, and a step of switching over the shim currents to those corresponding to a relevant slice to be measured prior to measurements of nuclear magnetic resonance signals from the slice. This inspection method can be applied also to a case where measurements of other slices are effected in intervals of measurements of the relevant slice.

摘要翻译： 使用核磁共振的检查装置的检查方法，具有用于产生静磁场的磁场产生装置，梯度磁场和RF磁场; 通过附加的垫片线圈产生磁场产生装置，其通过改变流过其中的电流来改变静态磁场的均匀性; 信号检测装置，用于检测来自被检体的核磁共振信号; 用于处理由信号检测装置检测的信号的装置; 以及用于控制流过所述垫片线圈的电流的控制装置，所述使用核磁共振的方法包括存储对应于多个片中的每一个的片状电流的步骤，能够提高所述多个片中的每一个的静态磁场的均匀性 以及在来自切片的核磁共振信号的测量之前，将垫片电流切换到与要测量的相关切片相对应的片电流的步骤。 该检查方法也可以应用于在相关切片的测量的间隔中实现其他切片的测量的情况。

公开(公告)号：US5600245A

公开(公告)日：1997-02-04

申请号：US319724

申请日：1994-10-07

申请人： Etsuji Yamamoto ,  Hisaaki Ochi ,  Hiroyuki Itagaki ,  Yukari Onodera ,  Hiroyuki Takeuchi

发明人： Etsuji Yamamoto ,  Hisaaki Ochi ,  Hiroyuki Itagaki ,  Yukari Onodera ,  Hiroyuki Takeuchi

IPC分类号： G01R33/385 ,  G01R33/565 ,  G01V3/00

CPC分类号： G01R33/385 ,  G01R33/56518

摘要： An inspection apparatus using magnetic resonance includes magnetic field generators for generating a static magnetic field, a gradient magnetic field and a radio frequency magnetic field, respectively, a signal detector for detecting magnetic resonance signals from an inspected object, a computer for executing arithmetic operations for detection signals from the signal detector and an output device of the result of the arithmetic operations by the computer. The gradient magnetic field generator includes first and second gradient coils, the first gradient coil is a coil fixed to a magnet for generating a static magnetic field, the second gradient coil is a movable coil, and the magnetic field generated by the second gradient coil at a conducting portion of the magnet is offset by the magnetic field generated by the first gradient coil. According to this construction, an eddy current that occurs with the time change of the gradient magnetic field can be reduced.

摘要翻译： 使用磁共振的检查装置包括分别产生静磁场，梯度磁场和射频磁场的磁场发生器，用于检测来自被检查物体的磁共振信号的信号检测器，用于执行用于 来自信号检测器的检测信号和计算机的算术运算结果的输出装置。 梯度磁场发生器包括第一和第二梯度线圈，第一梯度线圈是固定到磁体上以产生静态磁场的线圈，第二梯度线圈是可动线圈，并且由第二梯度线圈产生的磁场在 磁体的导电部分由第一梯度线圈产生的磁场偏移。 根据该结构，可以减少随着梯度磁场的时间变化而发生的涡电流。

公开(公告)号：US5510714A

公开(公告)日：1996-04-23

申请号：US926517

申请日：1992-08-10

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： In a bird cage resonator, the axial length of rungs is changed between orthogonal elements. By doing this, the real view fields of orthogonal ports A and B in the sagittal direction are changed and the sensitivity difference between both view fields is reduced. For an object with an elliptical section to be inspected such as the human body, a remarkable difference in detection sensitivity between each orthogonal ports is eliminated and the receiving sensitivity of MRI apparatus employing the QD method is improved.

摘要翻译： 在鸟笼式谐振器中，梯级的轴向长度在正交元件之间变化。 通过这样做，矢状方向上的正交端口A和B的真实视场被改变，并且两个视场之间的灵敏度差减小。 对于具有诸如人体等待检查的椭圆形截面的物体，消除了每个正交端口之间的检测灵敏度的显着差异，并且提高了采用QD方法的MRI装置的接收灵敏度。

公开(公告)号：US5477145A

公开(公告)日：1995-12-19

申请号：US177393

申请日：1994-01-05

申请人： Tetsuhiko Takahashi ,  Yoshikuni Matsunaga ,  Etsuji Yamamoto

发明人： Tetsuhiko Takahashi ,  Yoshikuni Matsunaga ,  Etsuji Yamamoto

IPC分类号： A61B5/055 ,  G01R33/32 ,  G01R33/34 ,  G01R33/36 ,  G01V3/00

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

摘要： In an RF probe comprising a resonator and a pickup coil, the pickup coil is an 8-shaped coil, and a center portion of this pickup coil is constituted in such a manner that crossing coils become parallel to each other at the portion. The center portion where the coils of the pickup coil are parallel to each other is so disposed as to extend along, and in the vicinity of, a part of a conductor loop of the resonator.

摘要翻译： 在包括谐振器和拾取线圈的RF探针中，拾取线圈是8形线圈，并且该拾取线圈的中心部分以这样的方式构成，使得交叉线圈在该部分处彼此平行。 拾波器线圈的线圈彼此平行的中心部分被布置成沿着谐振器的导体环的一部分延伸并且在谐振器的导体环的一部分附近。

公开(公告)号：US5427102A

公开(公告)日：1995-06-27

申请号：US331156

申请日：1994-10-28

申请人： Shin'ichi Shimode ,  Hiroshi Inouye ,  Norihide Saho ,  Shinya Okabe ,  Masayuki Otsuka ,  Yukiji Iwase ,  Etsuji Yamamoto ,  Hidemi Shiono ,  Kenji Takiguchi

发明人： Shin'ichi Shimode ,  Hiroshi Inouye ,  Norihide Saho ,  Shinya Okabe ,  Masayuki Otsuka ,  Yukiji Iwase ,  Etsuji Yamamoto ,  Hidemi Shiono ,  Kenji Takiguchi

IPC分类号： A61B5/055 ,  G01N33/38 ,  G01R33/28 ,  G01R33/385 ,  G01R33/54 ,  G10K11/178 ,  H04R1/40 ,  H04R3/00 ,  H04B15/00

CPC分类号： G01R33/3854 ,  G10K11/1786 ,  H04R1/40 ,  H04R3/00 ,  G01R33/283 ,  G01R33/385 ,  G01R33/543 ,  G10K2210/1161 ,  G10K2210/3026 ,  G10K2210/3027 ,  Y10S128/925

摘要： An active noise cancellation apparatus of an MRI apparatus, including a detector for detecting vibration of a bobbin or a driving signal of a magnetism generator as a noise source signal, error signal detectors for detecting actual noise near the ears of a patient, a circuit for generating a noise cancellation signal having an opposite phase to a phase of a noise signal generated by an MRI apparatus and having an amplitude proportional to the output of the error signal detectors, from the detected noise source signal and the output of the error signal detectors, and a sound generator for generating a sound wave by the noise cancellation signal.

摘要翻译： 一种MRI装置的主动噪声消除装置，包括用于检测线轴的振动的检测器或作为噪声源信号的磁性发生器的驱动信号，用于检测患者耳部附近的实际噪声的误差信号检测器， 产生噪声消除信号，所述噪声消除信号具有与由MRI装置产生的噪声信号的相位相反的相位，并且具有与所述误差信号检测器的输出成比例的振幅，所述噪声消除信号与所述检测到的噪声源信号和所述误差信号检测器的输出相对应， 以及用于通过噪声消除信号产生声波的声音发生器。

公开(公告)号：US5371465A

公开(公告)日：1994-12-06

申请号：US850589

申请日：1992-03-13

申请人： Yukari Onodera ,  Etsuji Yamamoto ,  Ryuichi Suzuki

发明人： Yukari Onodera ,  Etsuji Yamamoto ,  Ryuichi Suzuki

IPC分类号： G01R33/24 ,  G01R33/3875 ,  G01R33/565 ,  G01R33/20

CPC分类号： G01R33/3875 ,  G01R33/24 ,  G01R33/56563

摘要： In an inspection apparatus using nuclear magnetic resonance (NMR), a spatial distribution of homogeneity of a static magnetic field can be quickly measured even when a heterogeneous object is inspected, by measuring simultaneously phase data and a transverse relaxation time at the same spatial position of the heterogeneous object, removing the difference of a phase term due to a chemical shift by anticipating components at that position and obtaining only the phase data resulting from static magnetic field inhomogeneity. A plurality of low-pass filters are provided to a shim power supply unit for driving a shim coil for generating additional static magnetic fields to correct static magnetic field homogeneity so that a low-pass filter having a small time constant is used at the time of adjustment of static magnetic field homogeneity so as quickly adjust static magnetic field homogeneity, and a low-pass filter having a large time constant is used at the time of the actual measurement of the object in order to prevent degradation of S/N of signals.

摘要翻译： 在使用核磁共振（NMR）的检查装置中，即使在异质物体被检查时也可以快速地测量静态磁场的均匀性的空间分布，通过同时测量相位数据和相同空间位置处的横向弛豫时间 异质物体，通过预测该位置处的分量来消除由于化学位移引起的相位项的差异，并且仅获得由静态磁场不均匀性产生的相位数据。 多个低通滤波器被提供给垫片电源单元，用于驱动垫片线圈以产生额外的静态磁场，以校正静态磁场均匀性，使得在使用具有小时间常数的低通滤波器时 调整静磁场均匀性，以便快速调整静磁场均匀性，并且在物体的实际测量时使用具有大时间常数的低通滤波器，以防止信号的S / N的劣化。

公开(公告)号：US5195524A

公开(公告)日：1993-03-23

申请号：US647563

申请日：1991-01-29

申请人： Kenji Takiguchi ,  Etsuji Yamamoto ,  Hideki Kohno

发明人： Kenji Takiguchi ,  Etsuji Yamamoto ,  Hideki Kohno

IPC分类号： G01P13/00 ,  A61B5/026 ,  A61B5/055 ,  G01R33/44 ,  G01R33/48 ,  G01R33/563

CPC分类号： A61B5/0263 ,  G01R33/56308 ,  G01R33/5635 ,  G01R33/56366

摘要： An MRI flow imaging method and apparatus wherein a width of a relevant region in a direction is set, in which fluid in a subject body flows, and a first 90.degree. radio frequency pulse is applied thereto to excite selectively a relevant region; a gradient magnetic field is applied thereto in a direction, in which it is desired to project the fluid, after an application of a first 90.degree. radio frequency pulse so that a magnetization signal in a projection direction is zero, a second radio frequency pulse is applied to a relevant region to excite the relevant region selectively, after new fluid has poured in the relevant region, an echo signal is measured by applying an encoding gradient magnetic field and a reading out gradient magnetic field in a form of a flow sensitive pulse capable of detecting an echo signal from the fluid, and an echo signal is processed to obtain a two-dimensional image of the fluid.

摘要翻译： 一种MRI流程成像方法和装置，其中设定了被检体内的流体流过的朝向方向的相关区域的宽度，并且向其施加第一90°射频脉冲以选择性地激发相关区域; 在施加第一90°射频脉冲之后，在期望投射流体的方向上施加梯度磁场，使得投影方向上的磁化信号为零，第二射频脉冲为 应用于相关区域以选择性地激发相关区域，在新流体流入相关区域之后，通过施加编码梯度磁场和读出梯度磁场来测量回波信号，其形式为流敏脉冲能力 检测来自流体的回波信号，并且处理回波信号以获得流体的二维图像。

公开(公告)号：US5162737A

公开(公告)日：1992-11-10

申请号：US807625

申请日：1991-12-13

申请人： Tatsuo Nozokido ,  Etsuji Yamamoto ,  Hideki Kohno

发明人： Tatsuo Nozokido ,  Etsuji Yamamoto ,  Hideki Kohno

IPC分类号： G01R33/485 ,  G01R33/54 ,  G01R33/565

CPC分类号： G01R33/4828 ,  G01R33/485 ,  G01R33/56563

摘要： A multi-echo NMR imaging method of obtaining images separated from each other with respect to two kinds of chemical shifts, typically, a fat image and a water image, includes performing the measurement of an object to be examined through a multi-echo sequence in which phase differences of .theta..sub.1 .noteq.n.pi. and .theta..sub.2 =2n.pi. (n=.+-.1, .+-.2, ---) are respectively produced for first and second echoes between two kinds of spins to be separated from each other, deriving first and second complex images of the object from the first and second echoes, respectively, performing the measurement of a phantom exhibiting one of the chemical shifts through the multi-echo sequence and deriving third and fourth complex images of the phantom, eliminating phase errors due to a static magnetic field inhomogeneity from the first and second images using phase data of the third and fourth images respectively, and eliminating phase error due to a magnetic permeability distribution to the object.

摘要翻译： 一种多回波核磁共振成像方法，通过多个回波序列来获得相对于两种化学位移（通常为脂肪图像和水分图像）彼此分离的图像，包括： 分别产生用于从每一个分离出的两种旋转之间的第一和第二回波的θ1的相位差分别为n pi和theta 2 = 2n pi（n = + / - 1，+/- 2，...） 另外，分别从第一和第二回波导出对象的第一和第二复合图像，执行通过多回波序列显示化学位移之一的体模的测量，并导出体模的第三和第四复合图像，消除 分别使用第三和第四图像的相位数据从第一和第二图像的静态磁场不均匀性引起的相位误差，并消除由于对物体的磁导率分布引起的相位误差。