公开(公告)号：US5277182A

公开(公告)日：1994-01-11

申请号：US723692

申请日：1991-06-24

申请人： Hideaki Koizumi ,  Ryuzaburo Takeda ,  Hideki Kohno ,  Tetsuo Yokoyama ,  Yoshiyuki Miyamoto ,  Koichi Sano

发明人： Hideaki Koizumi ,  Ryuzaburo Takeda ,  Hideki Kohno ,  Tetsuo Yokoyama ,  Yoshiyuki Miyamoto ,  Koichi Sano

IPC分类号： A61B5/055 ,  G01R33/563

CPC分类号： A61B5/055 ,  G01R33/563

摘要： A method for imaging the coronary artery of a living body using nuclear magnetic resonance, wherein a patient is located in a static magneic field and the heart cycle of the patient is detected with the heart dilation period of the patient being determined in accordance with the detected heart cycle. Then, the coronary artery of the patient is portrayed on the nuclear magnetic resonance signal generated by applying high-frequency energy to the patient during the determined heart dilation period.

摘要翻译： 一种使用核磁共振对活体的冠状动脉成像的方法，其中患者位于静态磁场中，并且根据检测到的患者的心脏扩张周期被确定，患者的心脏周期被检测到 心脏周期。 然后，在确定的心脏扩张期间，将患者的冠状动脉描绘在通过对患者施加高频能量而产生的核磁共振信号上。

公开(公告)号：US4889127A

公开(公告)日：1989-12-26

申请号：US37855

申请日：1987-04-13

申请人： Ryuzaburo Takeda ,  Hideaki Koizumi ,  Yoshiyuki Miyamoto

发明人： Ryuzaburo Takeda ,  Hideaki Koizumi ,  Yoshiyuki Miyamoto

IPC分类号： A61B10/00 ,  A61B5/055 ,  G01R33/48 ,  G01R33/563

CPC分类号： G01R33/563

摘要： A nuclear magnetic resonance imaging apparatus for deriving a signal from a moving part of an object to be imaged, includes a gradient magnetic field generator for applying a gradient magnetic field to the object; and a radio frequency magnetic field generator for applying a radio frequency magnetic field to the object to present a nuclear magnetic resonance phenomenon. Pulses of a 180 degree pulse method are generated to remove an adverse effect of ununiformity of a static magnetic field; two gradient magnetic fields having the same amplitude and grading oppositely to each other are applied at a certain time interval therebetween to the moving part of the object in the direction of motion of the moving object; a radio frequency magnetic field is generated by applying a pulse in the pulses of the 180 degree pulse method succeeding a 180 degree pulse at the time corresponding to the center of an echo signal generated by the 180 degree pulse, the radio frequency magnetic field making a nuclear spin vector at the stationary part of the object in parallel to the static magnetic field; a resonance signal is detected which is produced from the object upon application of the radio frequency magnetic field; the above process is performed to further obtain another resonance signal, reversing the polarities of the gradient magnetic fields; and a difference between the two resonance signals is derived as a signal from the moving part of the object.

摘要翻译： 用于从待成像对象的移动部分导出信号的核磁共振成像装置包括用于向对象施加梯度磁场的梯度磁场发生器; 以及用于对物体施加射频磁场以呈现核磁共振现象的射频磁场发生器。 产生180度脉冲方式的脉冲以消除静磁场不均匀性的不利影响; 以相对于彼此相反的幅度和等级的两个梯度磁场在其间的特定时间间隔被施加到物体的运动部分在运动物体的运动方向上; 通过在对应于由180度脉冲产生的回波信号的中心的时间的180度脉冲之后的180度脉冲方式的脉冲中施加脉冲，产生射频磁场来产生射频磁场， 核自旋矢量在物体的静止部分平行于静磁场; 检测在应用射频磁场时从物体产生的共振信号; 执行上述处理以进一步获得另一谐振信号，反转梯度磁场的极性; 并且导出两个谐振信号之间的差异作为来自物体的运动部分的信号。

公开(公告)号：US5148109A

公开(公告)日：1992-09-15

申请号：US579531

申请日：1990-09-10

申请人： Atsushi Takane ,  Yoshiyuki Miyamoto ,  Ryuzaburo Takeda ,  Koichi Sano

发明人： Atsushi Takane ,  Yoshiyuki Miyamoto ,  Ryuzaburo Takeda ,  Koichi Sano

IPC分类号： A61B5/055 ,  G01R33/48 ,  G01R33/50 ,  G01R33/561 ,  G01R33/563

CPC分类号： G01R33/563 ,  G01R33/50 ,  G01R33/561

摘要： A spin in a predetermined voxel of the brain surface is excited to cause the spin to perform steady state free precession which causes signals, of which a time-reversed FID signal relating to spin-spin relaxation time T2 is enhanced to form an image representative of a thickness of cerebrospinal fluid existent in the brain surface, that is, of a brain surface structure. The spin can be caused to perform the steady state free precession by applying a pulse at the rate of a short repetition time and therefore an image of the brain surface can be obtained within a short period of time.

摘要翻译： 激发大脑表面的预定体素中的旋转以使自旋进行稳态自由进动，这导致信号，其中与自旋 - 自旋弛豫时间T2相关的时间反转的FID信号被增强以形成代表 脑表面存在脑脊液的厚度，即脑表面结构。 可以通过以短的重复时间的速率施加脉冲来使自旋进行稳态自由进动，因此可以在短时间内获得脑表面的图像。

公开(公告)号：US5165411A

公开(公告)日：1992-11-24

申请号：US672757

申请日：1991-03-22

申请人： Yoshiyuki Miyamoto ,  Ryuzaburo Takeda ,  Toshiaki Aritomi

发明人： Yoshiyuki Miyamoto ,  Ryuzaburo Takeda ,  Toshiaki Aritomi

IPC分类号： G01R33/54 ,  A61B5/055 ,  A61B10/00 ,  G01R33/32 ,  G01R33/567

CPC分类号： G01R33/5676

摘要： A radio frequency magnetic field is applied to a sample or object to be examined which is placed in a static magnetic field and oscillates periodically, and nuclear magnetic resonance signals are generated from the sample. The NMR signal is transformed to a signal having a form wherein a still image component and an artifact component resulting from the periodic oscillation, that are contained in the NMR signal, are mutually separated, and then processing is applied to the signal thus transformed so as to remove the artifact component therefrom. Inverse transform to the transform described above is applied to the signal thus processed.

摘要翻译： 将射频磁场施加到放置在静态磁场中并被周期性振荡的待检查的样品或物体，并且从样品产生核磁共振信号。 NMR信号被变换为具有形式的信号，其中包含在NMR信号中的由周期性振荡产生的静态图像分量和伪像分量相互分离，然后将处理应用于如此变换的信号，以便 从中删除工件组件。 将对上述变换的逆变换应用于由此处理的信号。

公开(公告)号：US08035383B2

公开(公告)日：2011-10-11

申请号：US12064514

申请日：2006-12-21

申请人： Hisaaki Ochi ,  Masayoshi Dohata ,  Atsushi Ninomiya ,  Yoshiyuki Miyamoto

发明人： Hisaaki Ochi ,  Masayoshi Dohata ,  Atsushi Ninomiya ,  Yoshiyuki Miyamoto

IPC分类号： G01V3/00

CPC分类号： G01R33/34046 ,  G01R33/34069 ,  G01R33/3415 ,  G01R33/3806 ,  G01R33/5611

摘要： This invention provides a receiving coil that allows a high-quality image of high depth sensitivity to be obtained during vertical magnetic field MRI without limiting selection of a cross section to be imaged and of a phase-encoding axis. A subject's field of view is broadened without deterioration of the coil characteristics. Two orthogonal solenoid coils (3-1 and 4-1) and sub-coils (5-1, 6-1, and 7-1) whose sensitivity distributions each become an odd function in an x-direction, a y-direction, and a z-direction, respectively, with respect to the origin of the sensitivity distribution of each of the solenoid coils are used as multiple sub-coils to construct the receiving coil. This receiving coil is suitable for a high-speed imaging method in which an image is acquired using reduced phase encoding and the image is reconstructed using image folding. In addition, the subject's field of view can be broadened by arranging conductors of the coil appropriately.

摘要翻译： 本发明提供了一种接收线圈，其允许在垂直磁场MRI期间获得高深度灵敏度的高质量图像，而不限制要成像的横截面和相位编码轴的选择。 受试者的视野扩大而不会降低线圈特性。 两个正交电磁线圈（3-1和4-1）和子线圈（5-1,6-1和7-1）的灵敏度分布在x方向，y方向， 和相对于每个螺线管线圈的灵敏度分布的原点的z方向被用作构成接收线圈的多个子线圈。 该接收线圈适用于使用减少的相位编码获取图像并且使用图像折叠重建图像的高速成像方法。 此外，可以通过适当地布置线圈的导体来扩大被摄体的视野。

公开(公告)号：US20110031970A1

公开(公告)日：2011-02-10

申请号：US12521336

申请日：2007-12-26

申请人： Atsushi Ninomiya ,  Yoshimi Kasai ,  Hisaaki Ochi ,  Masayoshi Dohata ,  Yoshiyuki Miyamoto ,  Shizuka Nagai

发明人： Atsushi Ninomiya ,  Yoshimi Kasai ,  Hisaaki Ochi ,  Masayoshi Dohata ,  Yoshiyuki Miyamoto ,  Shizuka Nagai

IPC分类号： G01R33/34

CPC分类号： G01R33/3415 ,  A61B5/055 ,  G01R33/34007 ,  G01R33/34084

摘要： The present invention provides a vertical magnetic field MRI apparatus which is capable of speeding up imaging for taking an image of any cross section of a wide area such as a total body, while suppressing increase of the number of channels and maintaining high sensitivity in a deep portion of a subject. A receiver coil unit 500 incorporates a bed coil unit 600 whose longitudinal direction agrees with a body axis direction of the test object 103, and an upper coil unit 700 which is detachably mounted on the bed coil unit 600. The bed coil unit 600 is provided with a carrying surface 601 for placing the test object 103 thereon and multiple lower sub-coils arranged in a lower part of the carrying surface 601, and the upper coil unit 700 is provided with multiple upper sub-coils which are connected to the lower sub-coils. The upper sub-coils are separated into two parts; one arranged in a flexible inner support 20-1 covering the installation surface 601 and another arranged in a flexible outer support 20-2 covering the external side of the inner support 20-1. The upper sub-coils and the lower sub-coils are connected by mounting the upper coil unit 700 on the bed coil unit 600, thereby forming the multiple types of sub-coils.

摘要翻译： 本发明提供一种垂直磁场MRI装置，其能够加速摄像以拍摄诸如全身的广泛区域的任何横截面的图像，同时抑制通道数量的增加并保持深度的高灵敏度 科目的一部分。 接收线圈单元500包括其纵向方向与测试对象103的主体轴线方向一致的床线圈单元600以及可拆卸地安装在床线圈单元600上的上线圈单元700.提供床线圈单元600 具有用于放置测试对象103的承载表面601和布置在承载表面601的下部的多个下部子线圈，并且上部线圈单元700设置有多个上部子线圈，其连接到下部子 线圈 上部子线圈分为两部分; 一个布置在覆盖安装表面601的柔性内部支撑件20-1中，另一个布置在覆盖内部支撑件20-1的外侧的柔性外部支撑件20-2中。 通过将上线圈单元700安装在床线圈单元600上而连接上子线圈和下子线圈，从而形成多种子线圈。

公开(公告)号：US20090299706A1

公开(公告)日：2009-12-03

申请号：US12376090

申请日：2007-05-24

申请人： Yoshiyuki Miyamoto

发明人： Yoshiyuki Miyamoto

IPC分类号： G06F17/11 ,  G06F17/14

CPC分类号： H01L29/78 ,  B82Y10/00 ,  H01L29/0665 ,  H01L29/0673

摘要： The present invention provides with a method for enabling a highly accurate simulation by calculating dynamical response of electrons in the electric field without using a “fitting parameter”. According to the present invention, the method for simulating a field distribution of a nano substance in an electric field comprises the step of a Fourier transform process by virtually applying a model on which a three-dimensional periodic boundary condition is imposed to the a field distribution of a nano substance in an electric field.Further, the method for simulating a field distribution of a nano substance in an electric field comprises the steps of arranging a virtual charge distribution on a space mesh, and evaluating a field distribution of a nano substance by calculating a potential distribution by way of Fourier-transforming a charge distribution into a reciprocal lattice space.

摘要翻译： 本发明提供了一种通过在电场中计算电子的动态响应而不使用“拟合参数”来实现高精度模拟的方法。 根据本发明，用于模拟电场中的纳米物质的场分布的方法包括：通过将对其施加三维周期边界条件的模型实际应用于场分布的傅立叶变换处理步骤 的电场中的纳米物质。 此外，用于模拟电场中的纳米物质的场分布的方法包括以下步骤：在空间网格上布置虚拟电荷分布，并且通过傅里叶变换计算电位分布来评估纳米物质的场分布， 将电荷分布转换为互逆晶格空间。

公开(公告)号：US20060286022A1

公开(公告)日：2006-12-21

申请号：US10558333

申请日：2004-05-20

申请人： Yoshiyuki Miyamoto ,  Takazumi Kawai

发明人： Yoshiyuki Miyamoto ,  Takazumi Kawai

IPC分类号： C01B31/02

CPC分类号： B01D53/02 ,  B01J20/20 ,  B01J20/205 ,  B01J20/28007 ,  B01J20/28045 ,  B82Y10/00 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/152 ,  C01B32/162 ,  H01L51/0045 ,  Y10T428/30

摘要： According to the present invention, there are provided a novel graphite-like three-dimensional structure which has a partial structure bent-up with such a steeper curvature than that observed for a carbonaceous material having a conventional nanosize three-dimensional structure such as fullerene and nanotube, has such a feature as light weight and high mechanical strength, as well as a process for manufacturing the same. In the present invention, under a high temperature and a low pressure, a plurality of nanosize graphite layer fragments are forced to coming into collision at a high speed in a relative orientation where the layer planes are not set in parallel to form a carbonaceous three-dimensional structure where at least a plurality of graphite-layer-like layer planes having a hexagonal network structure made up of carbon are arranged such that they mutually cross or are in contact with each other and at the sites for the contact between the plurality of layer planes, connections via carbon-carbon covalent bonds are aligned in the shape of a cross-line.

摘要翻译： 根据本发明，提供了一种新颖的石墨状三维结构，其具有弯曲曲率的部分结构，比具有常规纳米尺寸三维结构的碳质材料观察到的曲线更为弯曲，例如富勒烯和 纳米管具有重量轻和机械强度高的特征，以及其制造方法。 在本发明中，在高温低压下，多层纳米尺寸石墨层片段相对取向不会平行地高度相互碰撞而形成碳质三维层状， 其中至少多个具有由碳组成的六边形网状结构的石墨层状层平面彼此交叉或彼此接触并且在多个层​​之间的接触位置 平面，通过碳 - 碳共价键的连接以交叉线的形状对准。

公开(公告)号：US06531091B2

公开(公告)日：2003-03-11

申请号：US09783595

申请日：2001-02-15

申请人： Yoshiyuki Miyamoto ,  Takashi Yashiki

发明人： Yoshiyuki Miyamoto ,  Takashi Yashiki

IPC分类号： C22C1400

CPC分类号： F01N13/16

摘要： A muffler of a muffler made of a titanium alloy wherein advantages of lightness and corrosion-resistance that the titanium alloy originally has are used, and heat-resistance and oxidization-resistance are heightened without damaging costs or workability so that the span of life and flexibility for design are improved. A muffler made of a titanium alloy, wherein the titanium alloy comprises 0.5-2.3% by mass of Al and optionally one or more other alloying elements. The metal texture may comprise more than 90% by volume of the &agr; phase and 20% or less of the &bgr; phase. This muffler is superior in heat-resistance, oxidization-resistance, weldability and so on.

公开(公告)号：US20110305129A1

公开(公告)日：2011-12-15

申请号：US13104358

申请日：2011-05-10

申请人： Takashi Goto ,  Yoshiyuki Miyamoto ,  Takashi Sasaki

发明人： Takashi Goto ,  Yoshiyuki Miyamoto ,  Takashi Sasaki

IPC分类号： G11B20/18

CPC分类号： G11B7/00458 ,  G11B7/0045 ,  G11B7/1263 ,  G11B19/041 ,  G11B19/28 ,  G11B20/10 ,  G11B2020/1099 ,  G11B2220/2537

摘要： A recording device includes: a recording and reproducing unit that records or reproduces data stored on a recording medium; and a control unit that interrupts recording during recording performed by the recording and reproducing unit, acquires an evaluation value of a recording quality of a recorded portion, changes recording speed based on the evaluation value, and resuming the recording.

摘要翻译： 记录装置包括：记录和再现记录介质上存储的数据的记录和再现单元; 以及控制单元，其在由记录和再现单元执行的记录期间中断记录，获取记录部分的记录质量的评估值，基于评估值改变记录速度，并恢复记录。