公开(公告)号：US06567685B2

公开(公告)日：2003-05-20

申请号：US09764215

申请日：2001-01-19

申请人： Hiromitsu Takamori ,  Ayumi Katsunuma ,  Hitoshi Kanazawa ,  Takeshiro Suzuki ,  Seiji Nozaki ,  Masatoshi Hanawa ,  Yoshio Machida ,  Masaaki Yamanaka ,  Masao Yui

发明人： Hiromitsu Takamori ,  Ayumi Katsunuma ,  Hitoshi Kanazawa ,  Takeshiro Suzuki ,  Seiji Nozaki ,  Masatoshi Hanawa ,  Yoshio Machida ,  Masaaki Yamanaka ,  Masao Yui

IPC分类号： A61B505

CPC分类号： G01R33/3854

摘要： A magnetic resonance imaging apparatus generates an MR signal from an object by applying a gradient field pulse generated by a gradient field coil and a high-frequency magnetic field pulse generated by a high-frequency coil to the object in a static field, and reconstructs an image on the basis of the MR signal. The gradient field coil is housed in a sealed vessel. The internal air in the sealed vessel is exhausted by the pump to prevent noise. By controlling the operation of the pump using a control circuit, noise in imaging operation can be reduced more effectively.

摘要翻译： 磁共振成像装置通过将由梯度场线圈产生的梯度场脉冲和由高频线圈产生的高频磁场脉冲施加到静态场中的对象来生成来自对象的MR信号，并且重建 基于MR信号的图像。 梯度场线圈容纳在密封容器中。 密封容器中的内部空气被泵排出，以防止噪音。 通过使用控制电路控制泵的操作，可以更有效地降低成像操作中的噪声。

公开(公告)号：US09383422B2

公开(公告)日：2016-07-05

申请号：US13682846

申请日：2012-11-21

申请人： Motohisa Yokoi ,  Kanta Kobuchi ,  Sho Kawajiri ,  Masaaki Yamanaka ,  Naoki Imamura ,  Hitoshi Kanazawa

发明人： Motohisa Yokoi ,  Kanta Kobuchi ,  Sho Kawajiri ,  Masaaki Yamanaka ,  Naoki Imamura ,  Hitoshi Kanazawa

IPC分类号： G01V3/00 ,  G01R33/34 ,  G01R33/48 ,  G01R33/54 ,  G01R33/36 ,  G01R33/385

CPC分类号： G01R33/543 ,  G01R33/307 ,  G01R33/34 ,  G01R33/3614 ,  G01R33/3815 ,  G01R33/3852 ,  G01R33/3856 ,  G01R33/48 ,  G01R33/56

摘要： According to one embodiment, a magnetic resonance imaging apparatus includes a mode switching part and an imaging system. The mode switching part is configured to put a circuit system consuming a power into a shutdown state when a first trigger has been detected and put the circuit system being the shutdown state into a startup state when a second trigger has been detected. The first trigger shows that an imaging does not start for a certain period. The second trigger shows that the imaging starts. The imaging system is configured to perform the imaging by using the circuit system being the startup state.

摘要翻译： 根据一个实施例，磁共振成像设备包括模式切换部分和成像系统。 模式切换部被配置为当已经检测到第一触发时将消耗电力的电路系统置于关闭状态，并且当已经检测到第二触发时将电路系统处于关闭状态。 第一个触发器显示成像在一段时间内不会开始。 第二个触发器显示成像开始。 成像系统被配置为通过使用作为启动状态的电路系统来执行成像。

公开(公告)号：US20070023027A1

公开(公告)日：2007-02-01

申请号：US10571131

申请日：2004-06-03

申请人： Masanori Nakai ,  Masaaki Yamanaka ,  Yoshizumi Ishitobi

发明人： Masanori Nakai ,  Masaaki Yamanaka ,  Yoshizumi Ishitobi

IPC分类号： B28D1/08

CPC分类号： B65H54/2872 ,  B23D57/0061 ,  B23D61/185 ,  B24B27/0633 ,  Y10T83/9292

摘要： A superabrasive wire saw-wound structure includes a superabrasive wire saw (10) formed with an average diameter D and a reel (1). The superabrasive wire saw (10) includes a core wire (11), a bonding material (12) surrounding a surface of the core wire (11), and a plurality of superabrasive grains (13) bonded to the surface of the core wire (11) with the bonding material (12). The reel (1) includes a peripheral surface (2) having one end (3) and the other end (4). The superabrasive wire saw (10) which is to be unreeled successively toward a workpiece is wound around the peripheral surface (2) reciprocatingly between the one end (3) and the other end (4) to be multi-layered. A pitch P for winding the superabrasive wire saw (10) around the peripheral surface (2) between the one end (3) and the other end (4) satisfies a relation of D

摘要翻译： 超级磨损线锯绕结构包括形成有平均直径D和卷轴（1）的超级磨损线锯（10）。 所述超细金属丝锯（10）包括芯线（11），围绕所述芯线（11）的表面的接合材料（12）以及与所述芯线的表面接合的多个超磨粒（13） 11）与接合材料（12）。 卷轴（1）包括具有一端（3）和另一端（4）的外周表面（2）。 将要向工件连续取出的超级磨料钢丝绳（10）围绕在一端（3）和另一端（4）之间往复运动的外周表面（2）缠绕成多层。 围绕一端（3）和另一端（4）之间的周边表面（2）缠绕超级磨料线锯（10）的间距P满足D

公开(公告)号：US5670225A

公开(公告)日：1997-09-23

申请号：US561464

申请日：1995-11-21

申请人： Masaaki Yamanaka ,  Masaki Shiina

发明人： Masaaki Yamanaka ,  Masaki Shiina

IPC分类号： C08J9/00 ,  B29C55/02 ,  B29K23/00 ,  B29L9/00 ,  B32B5/18 ,  B32B5/32 ,  B32B7/02 ,  B32B7/06 ,  B32B7/10 ,  B32B27/00 ,  B32B27/20 ,  B32B27/32 ,  G09F3/02 ,  G09F3/10 ,  B42D15/00

CPC分类号： G09F3/02 ,  B32B27/20 ,  G09F3/10 ,  G09F2003/0254 ,  Y10S428/91 ,  Y10T428/14 ,  Y10T428/1452 ,  Y10T428/1471 ,  Y10T428/249978 ,  Y10T428/249979 ,  Y10T428/24998 ,  Y10T428/2848

摘要： A uniaxially stretched multilayered film obtained by uniaxially stretching a laminated film at a stretch ratio of from 3 to 10 to form many closed fine voids in each layer, said laminated film comprising a base layer (A) made of a resin composition comprising resinous ingredients comprising from 50 to 90% by weight crystalline polyolefin (a) and from 50 to 10% by weight thermoplastic resin (b) having a lower melting point than the crystalline polyolefin (a) and an inorganic fine powder (c) in an amount of from 0 to 35% by weight based on the sum of the weight of the resinous ingredients and, formed on at least one side of said base layer (A), a surface layer (B) made of a resin composition comprising from 20 to 80% by weight inorganic fine powder (d) and from 80 to 20% by weight crystalline polyolefin (e), said uniaxially stretching being conducted at a temperature lower than the melting point of said crystalline polyolefin (a) and lower than the melting point of said crystalline polyolefin (e) but at a temperature higher than the melting point of said thermoplastic resin (b).

摘要翻译： 一种单轴拉伸多层膜，其通过以3〜10的拉伸倍率单轴拉伸层叠膜，在各层中形成多个封闭的微细孔，所述层压膜包含由包含树脂成分的树脂组合物构成的基材层（A），所述树脂组合物包含 50至90重量％的结晶聚烯烃（a）和50至10重量％的具有比结晶聚烯烃（a）熔点低的热塑性树脂（b）和无机细粉末（c） 0〜35重量％，基于所述树脂成分重量的总和，在所述基材层（A）的至少一面上形成由树脂组合物构成的表面层（B），所述树脂组合物含有20〜80重量％ 的无机细粉末（d）和80〜20重量％的结晶聚烯烃（e），所述单轴拉伸在比所述结晶聚烯烃（a）的熔点低的温度下进行，低于所述 结晶多糖 （e），但温度高于所述热塑性树脂（b）的熔点。

公开(公告)号：US4663216A

公开(公告)日：1987-05-05

申请号：US739818

申请日：1985-05-31

申请人： Takashi Toyoda ,  Akira Akimoto ,  Masaaki Yamanaka ,  Yonetarou Kobayasi

发明人： Takashi Toyoda ,  Akira Akimoto ,  Masaaki Yamanaka ,  Yonetarou Kobayasi

IPC分类号： B32B27/00 ,  B32B27/20 ,  B41M5/00 ,  B41M5/50 ,  B41M5/52 ,  C08J7/04 ,  B32B5/16

CPC分类号： B41M5/5254 ,  B32B27/20 ,  B41M5/502 ,  B41M5/508 ,  B41M5/52 ,  Y10T428/24942 ,  Y10T428/25 ,  Y10T428/264 ,  Y10T428/31 ,  Y10T428/31725 ,  Y10T428/3175 ,  Y10T428/31757

摘要： A synthetic paper printable in high gloss comprises (1) a multilayer support, (2) a layer of a transparent film of a thermoplastic resin free from an inorganic fine powder formed on one surface of the support (1), and (3) a primer layer of a specific material. The support (1) comprises (1a) a base layer of a biaxially stretched film of a thermoplastic resin and a surface and a back layer (1b) and (1c) composed of a monoaxially stretched film of a thermoplastic resin containing from 8 to 65% by weight of an inorganic fine powder.

摘要翻译： 可高分辨印刷的合成纸包括（1）多层载体，（2）形成在载体（1）的一个表面上的无机细粉末的热塑性树脂的透明膜层，（3） 底漆层的特定材料。 支撑体（1）包括（1a）热塑性树脂的双轴拉伸膜的基底层和由含有8至65的热塑性树脂的单轴拉伸膜组成的表面和背层（1b）和（1c） 重量％的无机细粉末。

公开(公告)号：US09157973B2

公开(公告)日：2015-10-13

申请号：US13412665

申请日：2012-03-06

申请人： Masaaki Yamanaka

发明人： Masaaki Yamanaka

IPC分类号： G01R33/34 ,  G01R33/385

CPC分类号： G01R33/3852

摘要： A magnetic resonance imaging (MRI) apparatus storage unit stores different eddy current correction parameters that respectively correspond to different imaging positions to correct for influence of an eddy current magnetic field. An eddy current correcting unit receives the waveform of the gradient magnetic field calculated in accordance with an imaging condition, performs calculation onto the received waveform using an eddy current correction parameter selected in accordance with an imaging position, and outputs the calculation result as a corrected waveform to a gradient magnetic field power supply.

摘要翻译： 磁共振成像（MRI）装置存储单元存储分别对应于不同成像位置的不同的涡流校正参数，以校正涡流磁场的影响。 涡流校正单元接收根据成像条件计算出的倾斜磁场的波形，使用根据成像位置选择的涡流校正参数对接收波形进行计算，并将该计算结果作为校正波形输出 到梯度磁场电源。

公开(公告)号：US09013183B2

公开(公告)日：2015-04-21

申请号：US12938713

申请日：2010-11-03

申请人： Masaaki Yamanaka

发明人： Masaaki Yamanaka

IPC分类号： G01R33/28 ,  G01R33/34 ,  G01R33/563

CPC分类号： G01R33/288 ,  G01R33/34046 ,  G01R33/56375

摘要： An MRI apparatus includes an image generating unit and an SAR calculating unit. The image generating unit receives a magnetic resonance signal generated as a result of transmission of an RF pulse from an object, and generates image data of the object based on the magnetic resonance signal. The SAR calculating unit performs a correction operation on an energy control value of the RF pulse according to an imaging condition, and calculates an SAR value based on an energy value subjected to the correction operation.

摘要翻译： MRI装置包括图像生成单元和SAR计算单元。 图像生成单元接收作为从对象发送RF脉冲的结果而生成的磁共振信号，并且基于磁共振信号生成对象的图像数据。 SAR计算单元根据成像条件对RF脉冲的能量控制值执行校正操作，并且基于经过校正操作的能量值来计算SAR值。

公开(公告)号：US08677986B2

公开(公告)日：2014-03-25

申请号：US12937118

申请日：2009-04-08

申请人： Katsuo Kazahaya ,  Yasushi Matsumoto ,  Toshio Fukunishi ,  Munehiro Tsujimoto ,  Hideki Ogawa ,  Masaaki Yamanaka ,  Kenji Fukushima

发明人： Katsuo Kazahaya ,  Yasushi Matsumoto ,  Toshio Fukunishi ,  Munehiro Tsujimoto ,  Hideki Ogawa ,  Masaaki Yamanaka ,  Kenji Fukushima

IPC分类号： B28D1/06

CPC分类号： B24D18/0018 ,  B23D61/185 ,  B23D65/00 ,  B24D11/00

摘要： An electrodeposited wire tool has a core wire extending in a longitudinal direction, a plating layer provided on an outer peripheral surface of the core wire, superabrasive grains held by the plating layer and coating layers covering the outer peripheral surfaces of the superabrasive grains. The coating layers are constituted of electroless Ni—P platings. The coating layers are heat-treated, and the electroless Ni—P platings are partially or entirely crystallized.

摘要翻译： 电沉积线工具具有沿长度方向延伸的芯线，设置在芯线的外周面上的镀层，由镀层保持的超硬磨粒和覆盖超级磨粒的外周面的涂层。 涂层由无电Ni-P镀层构成。 涂层被热处理，无电Ni-P镀层部分或全部结晶。

公开(公告)号：US20120229139A1

公开(公告)日：2012-09-13

申请号：US13412665

申请日：2012-03-06

申请人： Masaaki Yamanaka

发明人： Masaaki Yamanaka

IPC分类号： G01R33/34

CPC分类号： G01R33/3852

摘要： The magnetic resonance imaging apparatus according to the present embodiment includes a storage unit, an eddy current correcting unit, and a gradient magnetic field power supply. The storage unit stores therein eddy current correction parameters that each correspond to the imaging positions to correct the influence of an eddy current magnetic field. The eddy current correcting unit receives the waveform of the gradient magnetic field calculated in accordance with the imaging condition, performs calculation onto the received waveform of the gradient magnetic field by use of an eddy current correction parameter selected in accordance with the position, and outputs the corrected waveform obtained as the calculation result to the gradient magnetic field power supply. The gradient magnetic field power supply receives the corrected waveform and applies a gradient magnetic field in accordance with the corrected waveform.

摘要翻译： 根据本实施例的磁共振成像装置包括存储单元，涡流校正单元和梯度磁场电源。 存储单元存储各自对应于成像位置的涡流校正参数，以校正涡流磁场的影响。 涡流校正单元接收根据成像条件计算出的倾斜磁场的波形，通过使用根据该位置选择的涡流校正参数对倾斜磁场的接收波形进行计算，并输出 作为计算结果获得的校正波形对梯度磁场电源。 梯度磁场电源接收经校正的波形，并根据校正的波形施加梯度磁场。

公开(公告)号：US20050134273A1

公开(公告)日：2005-06-23

申请号：US11016996

申请日：2004-12-21

申请人： Masaaki Yamanaka

发明人： Masaaki Yamanaka

IPC分类号： G01R33/48 ,  A61B5/055 ,  G01R33/28 ,  G01V3/00

CPC分类号： G01R33/28 ,  G01R33/443

摘要： A method of controlling a magnetic resonance imaging apparatus is provided with generating a gradient magnetic field in a predetermined space, calculating a duration time period of a rate of a change of the gradient magnetic field, and determining whether the rate of the change of the gradient magnetic field is within a permitted time period.

摘要翻译： 提供了一种控制磁共振成像装置的方法，其在预定空间中产生梯度磁场，计算梯度磁场变化速率的持续时间周期，以及确定梯度变化率 磁场在允许的时间段内。