公开(公告)号：US20050248350A1

公开(公告)日：2005-11-10

申请号：US10528759

申请日：2003-09-12

申请人： Munetaka Tsuda ,  Hiroyuki Takeuchi ,  Isao Sakamoto

发明人： Munetaka Tsuda ,  Hiroyuki Takeuchi ,  Isao Sakamoto

IPC分类号： A61B5/055 ,  G01R33/3815 ,  H01F7/20 ,  G01V3/00

CPC分类号： G01R33/3815

摘要： In order to provide a high intensity magnetic field open type MRI apparatus which suppresses electro-magnetic interference to super-conducting coils due to gradient magnetic field coils and high frequency magnetic field coils and to realize stable operation of super-conducting magnet, in a static magnetic field generating magnet 102, a pair of cryostats 117 are connected by a coupling tube 201 and disposed in vertical direction while sandwiching a space 118 where a subject is laid, and in vessels 202 and 203 filled with liquid helium in the respective cryostats super-conducting coils are accommodated. To the cryostats 117 an emergency demagnetizing unit 120 for attenuating magnetic field and a measurement unit 121 for monitoring helium liquid level belong, and signal cables therefor are connected to an inner circuit of the static magnetic field generating magnet 102 via a filter circuit 122. High frequency current induced when the gradient magnetic field coils and the high frequency magnetic field coils are driven is interrupted by the filter circuit 122 and is caused to flow to a connection point 123 via the outer casing of the cryostats 117, thereby, no influences are effected to the inner circuit in the cryostats 117.

摘要翻译： 为了提供一种高强度磁场开放型MRI装置，其抑制由于梯度磁场线圈和高频磁场线圈引起的对超导线圈的电磁干扰，并且实现超导磁体的稳定运行，在静态 磁场产生磁体102，一对低温恒温器117通过耦合管201连接并且在垂直方向上设置，同时夹着放置受试者的空间118，以及在各个低温恒温器中填充液氦的容器202和203中， 容纳导线。 对于低温恒温器117，用于衰减磁场的紧急退磁单元120和用于监测氦液位的测量单元121属于，并且其信号电缆经由滤波器电路122连接到静磁场产生磁体102的内部电路。高 当驱动梯度磁场线圈和高频磁场线圈时感应的频率电流被滤波器电路122中断，并且经由低温恒温器117的外壳流到连接点123，从而不影响其影响 到低温恒温器117中的内部电路。

公开(公告)号：US20050218894A1

公开(公告)日：2005-10-06

申请号：US10518122

申请日：2003-07-03

申请人： Shouichi Miyawaki ,  Hiroyuki Takeuchi ,  Hideki Kumai

发明人： Shouichi Miyawaki ,  Hiroyuki Takeuchi ,  Hideki Kumai

IPC分类号： G01R33/565 ,  G01V3/00

CPC分类号： G01R33/56518

摘要： An MRI apparatus having a calibration pulse sequence, wherein a group of pulse sequences for applying test gradient magnetic fields are established from a basic pulse sequence by a gradient echo method of short TR, a group of pulse sequences not applying test gradient fields are established from the basic pulse sequence, a set of three- or four-dimensional data including a time variable is created by using echo signals collected by at least one of the groups, two data sets are created as a whole by inverting the polarity of the test gradient magnetic field, the difference between phase images thereof is determined, the magnitude and time constant of eddy current induced at the fall or rise of the gradient magnetic field are determined from the phase difference image, and the variation of the magnetic field due to eddy current induced at the rise and/or fall of the gradient magnetic field can be measured in a relatively short time with a desired time resolution even if the magnetic field variation is of a very long time constant.

摘要翻译： 具有校准脉冲序列的MRI装置，其中通过短TR的梯度回波方法从基本脉冲序列建立用于施加测试梯度磁场的一组脉冲序列，建立不应用测试梯度场的一组脉冲序列 通过使用由至少一个组收集的回波信号来创建包括时间变量的三维或四维数据的基本脉冲序列的集合，通过反转测试梯度的极性来整体地创建两个数据集 磁场，确定其相位图像之间的差异，从相位差图像确定在倾斜磁场的下降或上升期间感应的涡流的大小和时间常数，以及由于涡流引起的磁场的变化 在梯度磁场的上升和/或下降时可以在相对短的时间内以期望的时间分辨率测量，即使磁场 d变化是非常长的时间常数。

公开(公告)号：US20050192128A1

公开(公告)日：2005-09-01

申请号：US10967296

申请日：2004-10-19

申请人： Hiroyuki Takeuchi ,  Takeshi Ashino

发明人： Hiroyuki Takeuchi ,  Takeshi Ashino

IPC分类号： A63B49/04 ,  A63B49/00 ,  A63B49/14 ,  A63B51/00 ,  A63B51/10

CPC分类号： A63B51/10 ,  A63B49/022

摘要： Supposing that an upper part of the ball-hitting face (F) is set as a 0-degree position, a string protection member (21) is mounted on at least one portion of a head part of the racket frame in a range from a clockwise 45-degree position to a clockwise 135-degree position and in a range from a clockwise 225-degree position to a clockwise 315-degree position by interposing a viscoelastic member between the string protection member and the racket frame. The moment (Is) of inertia of the tennis racket in a swing direction is set to not less than 450,000 g/cm2 nor more than 490,000 g/cm2, when strings are not tensionally mounted thereon. The moment (Ic) of inertia of the tennis racket in a center direction is set to not less than 15,000 g/cm2 nor more than 19,000 g/cm2, when the strings are not tensionally mounted thereon.

摘要翻译： 假设将击球面（F）的上部设定为0度位置，则在球拍框架的头部的至少一部分上安装绳保护构件（21）的范围从 顺时针方向45度位置，顺时针方向135度位置，并在顺时针方向的225度位置到顺时针方向的315度位置，方法是将一个粘弹组件插入到球杆保护构件和球拍框架之间。 网球拍在摆动方向的惯性力矩（Is）设定为不小于45万g / cm 2以上，不大于490,000g / cm 2以下，当 弦没有紧固地安装在其上。 网球拍在中心方向的惯性矩（Ic）设定为15000g / cm 2以上19000g / cm 2以下，当 弦不会紧紧地安装在其上。

公开(公告)号：US20050177338A1

公开(公告)日：2005-08-11

申请号：US10988515

申请日：2004-11-16

申请人： Hiroyuki Takeuchi ,  Takuya Harada

发明人： Hiroyuki Takeuchi ,  Takuya Harada

IPC分类号： G01P3/489 ,  G01B5/02 ,  G01D5/244 ,  G01D5/245

CPC分类号： G01D5/2457

摘要： A rotation position detecting device includes an angular signal generator which generates pulses the cycle period of which is even or equal when a rotating object rotates at a constant rotation speed and a non-pulse portion which corresponds to a reference position, an up-down command circuit for generating an up-down command signal the frequency of which is divided to a half of the frequency of the angular signal, a pair of first counters for counting up or down the clock signal when the up-down command signal changes from a first level to a second level to reset and subsequently counting down the clock signal when the up-down command signal changes from the second level to the first level, a pair of processing circuits for providing a first and second reference values, a pair of counters which generates detection signals when the counted number of the counters becomes smaller than the first or the second reference value.

摘要翻译： 旋转位置检测装置包括角度信号发生器，其产生当旋转物体以恒定旋转速度旋转的循环周期均匀或相等的脉冲和对应于基准位置的非脉冲部分的脉冲，上下指令 电路，用于产生其频率被分频为角度信号的频率的一半的上下指令信号;一对第一计数器，用于当上下命令信号从第一 当上升命令信号从第二电平变为第一电平时，复位并随后对时钟信号进行递减，一对用于提供第一和第二参考值的处理电路，一对计数器 当计数的计数数量小于第一或第二参考值时，产生检测信号。

公开(公告)号：US06600317B1

公开(公告)日：2003-07-29

申请号：US09869577

申请日：2001-06-27

申请人： Hideki Kumai ,  Hiroyuki Takeuchi

发明人： Hideki Kumai ,  Hiroyuki Takeuchi

IPC分类号： G01V300

CPC分类号： G01R33/4835

摘要： In processing of measurement data of each slab obtained by 3D-TOF multi-slab measurement, data in the overlapped portion of the slabs are weighted and added for each slice position. The weight function is calculated based on parameters set previously and is the same as the slab profile or an approximation curve thereof. The weighted and added data are normalized and reconstructed to obtain images. In the obtained image, signal difference between slabs can be suppressed.

摘要翻译： 在通过3D-TOF多板测量获得的每个板的测量数据的处理中，对于每个切片位置对板的重叠部分中的数据进行加权和加法。 重量函数是根据先前设定的参数计算的，并且与平板轮廓或其近似曲线相同。 加权和添加的数据被归一化和重构以获得图像。 在获得的图像中，可以抑制板之间的信号差。

公开(公告)号：US06462638B2

公开(公告)日：2002-10-08

申请号：US09884157

申请日：2001-06-20

申请人： Katsuhisa Imada ,  Motoi Nishii ,  Hiroyuki Takeuchi ,  Naotaka Oiwa ,  Yoshihiro Nishinaga

发明人： Katsuhisa Imada ,  Motoi Nishii ,  Hiroyuki Takeuchi ,  Naotaka Oiwa ,  Yoshihiro Nishinaga

IPC分类号： H01F500

CPC分类号： H01F17/0013

摘要： When a plurality of devices are disposed in parallel in a magnetic ceramic laminated member to form a complex electronic component, an insulating member is disposed between adjacent devices. When adjacent devices among a plurality of devices are disposed on different planes in a magnetic ceramic laminated member to form a complex electronic component, an insulating member is disposed at least at a part of an intermediate layer positioned between the adjacent devices in the lamination direction.

摘要翻译： 当多个装置并联设置在磁性陶瓷层叠构件中以形成复杂的电子部件时，绝缘构件设置在相邻的装置之间。 当多个器件中的相邻器件设置在磁性陶瓷层叠部件的不同平面上以形成复杂的电子部件时，绝缘部件至少位于层叠方向上位于相邻器件之间的中间层的一部分。

公开(公告)号：US06329026B1

公开(公告)日：2001-12-11

申请号：US09155852

申请日：1998-10-05

申请人： Dietrich Demus ,  Ryokichi Tarao ,  Hiroyuki Takeuchi ,  Kazutoshi Miyazawa

发明人： Dietrich Demus ,  Ryokichi Tarao ,  Hiroyuki Takeuchi ,  Kazutoshi Miyazawa

IPC分类号： C09K1902

CPC分类号： G11B7/25 ,  G02F1/133362 ,  G02F1/139 ,  G02F3/022 ,  Y10T428/10

摘要： Devices useful for storage of information which comprises mixtures of suitable chiral materials with nematic liquid crystals and in which by irradiation with light of two different wavelengths the chirality of the mixture can be reversibly switched between two stable states of different chirality, corresponding to two states of different optical properties.

摘要翻译： 用于存储信息的装置，其包括合适的手性材料与向列液晶的混合物，并且其中通过用两种不同波长的光照射混合物的手性可以在两种不同手性的稳定状态之间可逆地切换，对应于两种状态 不同的光学性能。

公开(公告)号：US06294976B1

公开(公告)日：2001-09-25

申请号：US09110139

申请日：1998-07-06

申请人： Katsuhisa Imada ,  Motoi Nishii ,  Hiroyuki Takeuchi ,  Naotaka Oiwa ,  Yoshihiro Nishinaga

发明人： Katsuhisa Imada ,  Motoi Nishii ,  Hiroyuki Takeuchi ,  Naotaka Oiwa ,  Yoshihiro Nishinaga

IPC分类号： H01F500

CPC分类号： H01F17/0013

摘要： When a plurality of devices are disposed in parallel in a magnetic ceramic laminated member to form a complex electronic component, an insulating member is disposed between adjacent devices. When adjacent devices among a plurality of devices are disposed on different planes in a magnetic ceramic laminated member to form a complex electronic component, an insulating member is disposed at least at a part of an intermediate layer positioned between the adjacent devices in the lamination direction.

摘要翻译： 当多个装置并联设置在磁性陶瓷层叠构件中以形成复杂的电子部件时，绝缘构件设置在相邻的装置之间。 当多个器件中的相邻器件设置在磁性陶瓷层叠部件的不同平面上以形成复杂的电子部件时，绝缘部件至少位于层叠方向上位于相邻器件之间的中间层的一部分。

公开(公告)号：US5721490A

公开(公告)日：1998-02-24

申请号：US597959

申请日：1996-02-07

申请人： Hiroshi Takano ,  Hiroyuki Takeuchi ,  Keiichi Chabata ,  Takuya Domoto ,  Takanobu Hatakeyama

发明人： Hiroshi Takano ,  Hiroyuki Takeuchi ,  Keiichi Chabata ,  Takuya Domoto ,  Takanobu Hatakeyama

IPC分类号： G01R33/385 ,  G01V3/00

CPC分类号： G01R33/3852

摘要： A power source apparatus distributes a current command value to be supplied to a load to a plurality of output current amplifiers connected in parallel with the load, and each of the output current amplifiers supplies an output current corresponding to the current command value so distributed. This power source apparatus prevents a circulating current between the output current amplifiers by controlling each output current amplifier so that the difference between the output current from each output current amplifier and the distributed current command value becomes zero, or by inserting current limiting devices into the output line of each output current amplifier.

摘要翻译： 电源装置将要提供给负载的电流指令值分配给与负载并联连接的多个输出电流放大器，并且每个输出电流放大器提供与分配的当前指令值相对应的输出电流。 该电源装置通过控制每个输出电流放大器来防止输出电流放大器之间的循环电流，使得来自每个输出电流放大器的输出电流与分布电流指令值之间的差变为零，或者通过将限流装置插入输出 每路输出电流放大器。

公开(公告)号：US5655532A

公开(公告)日：1997-08-12

申请号：US448111

申请日：1995-05-22

申请人： Yukihiro Yasugi ,  Koji Kajiyama ,  Hiroyuki Takeuchi

发明人： Yukihiro Yasugi ,  Koji Kajiyama ,  Hiroyuki Takeuchi

IPC分类号： A61B5/055 ,  G01R33/48 ,  G01R33/54 ,  G01R33/56 ,  G01R33/561

CPC分类号： G01R33/5602 ,  G01R33/482 ,  G01R33/56

摘要： A magnetic resonance imaging method includes the steps of setting a repetition time in accordance with an intensity of an encoding gradient magnetic field, applying a gradient magnetic field for a slice, the set encoding gradient magnetic field, a readout gradient magnetic field, and RF pulses to a subject in a predetermined sequence of the set repetition time, measuring nuclear magnetic resonance (NMR) signals inside the subject in a full encode range with a first repetition time, continuously measuring, at least one time, NMR signals in a first range containing a zero encoding quantity and sandwiched between two predetermined intensities of the encoding gradient magnetic field with a repetition time which is different from the first repetition time, and reconstructing an image by combining the measured NMR signals with one another.

摘要翻译： 磁共振成像方法包括以下步骤：根据编码梯度磁场的强度设置重复时间，对切片施加梯度磁场，设定编码梯度磁场，读出梯度磁场和RF脉冲 以设定的重复时间的预定顺序对对象进行测量，在第一重复时间的全编码范围内测量受试者内部的核磁共振（NMR）信号，连续测量至少一次在包含第一范围的第一范围内的NMR信号 零编码量并且夹在具有不同于第一重复时间的重复时间的编码梯度磁场的两个预定强度之间，并且通过将测量的NMR信号彼此组合来重构图像。