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1. 发明申请

US20110279116A1 MAGNETIC RESONANCE DIAGNOSTIC APPARATUS 有权
标题翻译：磁共振诊断装置
公开(公告)号：US20110279116A1
公开(公告)日：2011-11-17
申请号：US13108137
申请日：2011-05-16
申请人： Yoshitomo Sakakura , Satoshi Sugiura , Tomoyuki Yoshida , Takashi Yanashima , Masateru Iwasa , Yutaka Kato , Koji Kitamura , Kazuto Nogami , Hidekazu Tanaka , Makoto Sato , Shigehide Kuhara , Taketo Kawakami , Yasutake Yasuhara , Hiroshi Sugimoto
发明人： Yoshitomo Sakakura , Satoshi Sugiura , Tomoyuki Yoshida , Takashi Yanashima , Masateru Iwasa , Yutaka Kato , Koji Kitamura , Kazuto Nogami , Hidekazu Tanaka , Makoto Sato , Shigehide Kuhara , Taketo Kawakami , Yasutake Yasuhara , Hiroshi Sugimoto
IPC分类号： G01R33/48
CPC分类号： A61B5/0555 , A61B5/015 , A61B5/1128 , A61N1/403 , A61N2/004 , G01R33/4804 , G01R33/4808
摘要： A magnetic resonance diagnostic apparatus is configured in such a manner that: a high-frequency transmission coil transmits a high-frequency electromagnetic wave at a magnetic resonance frequency to an examined subject; a heating coil performs a heating process by radiating a high-frequency electromagnetic wave onto the examined subject at a frequency different from the magnetic resonance frequency; based on a magnetic resonance signal, a measuring unit measures the temperature of the examined subject changing due to the high-frequency electromagnetic wave radiated by the heating coil; and a control unit exercises control so that the measuring unit measures the temperature while the heating coil is performing the heating process, by ensuring that the transmission of the high-frequency electromagnetic wave by the high-frequency transmission coil and the radiation of the high-frequency electromagnetic wave by the heating coil are performed in parallel.
摘要翻译：磁共振诊断装置被配置为：高频发送线圈将磁共振频率的高频电磁波发送到被检查对象; 加热线圈通过以与磁共振频率不同的频率将高频电磁波照射到被检查对象上进行加热处理; 基于磁共振信号，测量单元测量由加热线圈辐射的高频电磁波引起的检查对象变化的温度; 并且控制单元进行控制，使得测量单元在加热线圈进行加热处理时测量温度，通过确保高频传输线圈的高频电磁波的传输和高频传输线圈的辐射，并行地进行加热线圈的高频电磁波。

2. 发明授权

US08575934B2 Magnetic resonance imaging apparatus and shimming apparatus with convex to concave layered stacking of shim plates 有权
标题翻译：磁共振成像装置和具有凸形到凹凸层叠垫片的匀场装置
公开(公告)号：US08575934B2
公开(公告)日：2013-11-05
申请号：US12833495
申请日：2010-07-09
申请人： Masateru Iwasa , Yoshitomo Sakakura , Kazuto Nogami , Hidekazu Tanaka
发明人： Masateru Iwasa , Yoshitomo Sakakura , Kazuto Nogami , Hidekazu Tanaka
IPC分类号： G01R33/3873 , G01R33/3875
CPC分类号： G01R33/3873
摘要： According to one embodiment, a magnetic resonance imaging apparatus includes a static magnetic-field generating unit, a gradient magnetic-field generating unit, a plurality of metal shim plates in a plate shape, and a shim holding unit. The metal shim plates adjust uniformity of the static magnetic field. The shim holding unit holds the metal shim plates in a layered state. Each of the metal shim plates includes a convex having a certain angle at a certain position, and the metal shim plates are layered such that the convex of each one metal shim plate comes into contact with a back of the bent convex of another metal shim plate.
摘要翻译：根据一个实施例，磁共振成像装置包括静态磁场产生单元，梯度磁场产生单元，多个板状的金属垫板和垫片保持单元。金属垫板调整静磁场的均匀性。垫片保持单元将金属垫片保持在分层状态。每个金属垫板包括在特定位置具有一定角度的凸起，并且金属垫板被层叠，使得每个金属垫板的凸起与另一金属垫板的弯曲凸起的背面接触。

3. 发明申请

US20060230769A1 Superconducting magnet device-monitoring system, method of monitoring superconducting magnet device and MRI device 审中-公开
标题翻译：超导磁体装置监测系统，超导磁体装置监测方法及MRI装置
公开(公告)号：US20060230769A1
公开(公告)日：2006-10-19
申请号：US11324328
申请日：2006-01-04
申请人： Kazuto Nogami
发明人： Kazuto Nogami
IPC分类号： G01K13/00 , G01M1/38 , G01V3/00
CPC分类号： G01R33/3815
摘要： A superconducting magnet device-monitoring system includes detecting unit, remaining amount estimating unit, and output unit. The detecting unit detects a remaining amount of liquid helium, in which a superconducting coil is immersed stored in a liquid helium container of a superconducting magnet device. The remaining amount estimating unit calculates an estimated remaining amount, which shows an estimated value of the remaining amount, on the basis of the remaining amount of liquid helium preliminarily detected by the detecting unit. The output unit outputs monitoring information on the superconducting magnet device on the basis of the detected remaining amount and estimated remaining amount of liquid helium.
摘要翻译：超导磁体装置监视系统包括检测单元，剩余量估计单元和输出单元。检测单元检测超导线圈浸没在超导磁体装置的液氦容器中的液氦的剩余量。剩余量估计单元基于由检测单元预先检测的液氦的剩余量来计算显示剩余量的估计值的估计剩余量。输出单元基于检测到的剩余量和估计的液氦余量，输出超导磁体装置上的监视信息。

4. 发明授权

US08305079B2 Magnetic resonance imaging apparatus and gradient coil cooling control method 有权
标题翻译：磁共振成像装置和梯度线圈冷却控制方法
公开(公告)号：US08305079B2
公开(公告)日：2012-11-06
申请号：US12567461
申请日：2009-09-25
申请人： Masateru Iwasa , Kazuto Nogami , Tomoyuki Yoshida , Fumitoshi Kojima , Yoshitomo Sakakura , Kohei Adachi
发明人： Masateru Iwasa , Kazuto Nogami , Tomoyuki Yoshida , Fumitoshi Kojima , Yoshitomo Sakakura , Kohei Adachi
IPC分类号： G01V3/00
CPC分类号： G01R33/3856 , G01R33/3804 , G01R33/3873
摘要： A feedforward control unit predicts the maximum value of the temperature of a gradient coil based on a power duty and a scan time of a pulse sequence, and a present temperature of the gradient coil. When the maximum value exceeds a predetermined upper limit, the feedforward control unit then instructs a temperature adjusting unit to start a water circulation in a chiller at the start of a prescan, and the temperature adjusting unit starts the water circulation based on the instruction.
摘要翻译：前馈控制单元基于脉冲序列的功率占空比和扫描时间以及梯度线圈的当前温度来预测梯度线圈的温度的最大值。当最大值超过预定上限时，前馈控制单元然后指示温度调节单元在预扫描开始时开始冷却器中的水循环，并且温度调节单元基于该指令开始水循环。

5. 发明申请

US20110006769A1 MAGNETIC RESONANCE IMAGING APPARATUS AND SHIMMING APPARATUS 有权
标题翻译：磁共振成像装置和制作装置
公开(公告)号：US20110006769A1
公开(公告)日：2011-01-13
申请号：US12833495
申请日：2010-07-09
申请人： Masateru Iwasa , Yoshitomo Sakakura , Kazuto Nogami , Hidekazu Tanaka
发明人： Masateru Iwasa , Yoshitomo Sakakura , Kazuto Nogami , Hidekazu Tanaka
IPC分类号： G01R33/48
CPC分类号： G01R33/3873
摘要： According to one embodiment, a magnetic resonance imaging apparatus includes a static magnetic-field generating unit, a gradient magnetic-field generating unit, a plurality of metal shim plates in a plate shape, and a shim holding unit. The metal shim plates adjust uniformity of the static magnetic field. The shim holding unit holds the metal shim plates in a layered state. Each of the metal shim plates includes a convex having a certain angle at a certain position, and the metal shim plates are layered such that the convex of each one metal shim plate comes into contact with a back of the bent convex of another metal shim plate.
摘要翻译：根据一个实施例，磁共振成像装置包括静态磁场产生单元，梯度磁场产生单元，多个板状的金属垫板和垫片保持单元。金属垫板调整静磁场的均匀性。垫片保持单元将金属垫片保持在分层状态。每个金属垫板包括在特定位置具有一定角度的凸起，并且金属垫板被层叠，使得每个金属垫板的凸起与另一金属垫板的弯曲凸起的背面接触。

6. 发明授权

US08598879B2 Magnetic resonance diagnostic apparatus 有权
标题翻译：磁共振诊断仪
公开(公告)号：US08598879B2
公开(公告)日：2013-12-03
申请号：US13108137
申请日：2011-05-16
申请人： Yoshitomo Sakakura , Satoshi Sugiura , Tomoyuki Yoshida , Takashi Yanashima , Masateru Iwasa , Yutaka Kato , Koji Kitamura , Kazuto Nogami , Hidekazu Tanaka , Makoto Sato , Shigehide Kuhara , Taketo Kawakami , Yasutake Yasuhara , Hiroshi Sugimoto
发明人： Yoshitomo Sakakura , Satoshi Sugiura , Tomoyuki Yoshida , Takashi Yanashima , Masateru Iwasa , Yutaka Kato , Koji Kitamura , Kazuto Nogami , Hidekazu Tanaka , Makoto Sato , Shigehide Kuhara , Taketo Kawakami , Yasutake Yasuhara , Hiroshi Sugimoto
IPC分类号： G01V3/00
CPC分类号： A61B5/0555 , A61B5/015 , A61B5/1128 , A61N1/403 , A61N2/004 , G01R33/4804 , G01R33/4808
摘要： A magnetic resonance diagnostic apparatus is configured in such a manner that: a high-frequency transmission coil transmits a high-frequency electromagnetic wave at a magnetic resonance frequency to an examined subject; a heating coil performs a heating process by radiating a high-frequency electromagnetic wave onto the examined subject at a frequency different from the magnetic resonance frequency; based on a magnetic resonance signal, a measuring unit measures the temperature of the examined subject changing due to the high-frequency electromagnetic wave radiated by the heating coil; and a control unit exercises control so that the measuring unit measures the temperature while the heating coil is performing the heating process, by ensuring that the transmission of the high-frequency electromagnetic wave by the high-frequency transmission coil and the radiation of the high-frequency electromagnetic wave by the heating coil are performed in parallel.
摘要翻译：磁共振诊断装置被配置为：高频发送线圈将磁共振频率的高频电磁波发送到被检查对象; 加热线圈通过以与磁共振频率不同的频率将高频电磁波照射到被检查对象上进行加热处理; 基于磁共振信号，测量单元测量由加热线圈辐射的高频电磁波引起的检查对象变化的温度; 并且控制单元进行控制，使得测量单元在加热线圈进行加热处理时测量温度，通过确保高频传输线圈的高频电磁波的传输和高频传输线圈的辐射，并行地进行加热线圈的高频电磁波。

7. 发明授权

US07541812B2 MRI apparatus, NMR analyzer, and gantry 有权
标题翻译： MRI装置，NMR分析仪和台架
公开(公告)号：US07541812B2
公开(公告)日：2009-06-02
申请号：US12010959
申请日：2008-01-31
申请人： Kazuto Nogami
发明人： Kazuto Nogami
IPC分类号： G01V3/00
CPC分类号： G01R33/3854 , G01R33/3873
摘要： A magnetic resonance imaging apparatus includes a static magnetic field generating unit, a main coil (gradient magnetic coil), a radio frequency coil, and a shimming structure unit. The shimming structure unit includes first iron shims and second iron shims. The first iron shims are disposed between the main coil and a shield coil of the gradient magnetic coil and disposed in a central axial center of the static magnetic field generating unit. The second iron shims are disposed on an outer side of the main coil and the shield coil and disposed on a central axial end of the static magnetic field generating unit.
摘要翻译：磁共振成像装置包括静磁场产生单元，主线圈（梯度磁线圈），射频线圈和匀场结构单元。匀场结构单元包括第一铁垫片和第二铁垫片。第一铁垫片设置在主线圈和梯度磁线圈的屏蔽线圈之间，并设置在静磁场产生单元的中心轴心处。第二铁垫片设置在主线圈和屏蔽线圈的外侧，并设置在静磁场产生单元的中心轴向端。

8. 发明申请

US20080191698A1 MRI apparatus, NMR analyzer, and gantry 有权
标题翻译： MRI装置，NMR分析仪和台架
公开(公告)号：US20080191698A1
公开(公告)日：2008-08-14
申请号：US12010959
申请日：2008-01-31
申请人： Kazuto Nogami
发明人： Kazuto Nogami
IPC分类号： G01R33/32
CPC分类号： G01R33/3854 , G01R33/3873
摘要： A magnetic resonance imaging apparatus includes a static magnetic field generating unit, a main coil (gradient magnetic coil), a radio frequency coil, and a shimming structure unit. The shimming structure unit includes first iron shims and second iron shims. The first iron shims are disposed between the main coil and a shield coil of the gradient magnetic coil and disposed in a central axial center of the static magnetic field generating unit. The second iron shims are disposed on an outer side of the main coil and the shield coil and disposed on a central axial end of the static magnetic field generating unit.
摘要翻译：磁共振成像装置包括静磁场产生单元，主线圈（梯度磁线圈），射频线圈和匀场结构单元。匀场结构单元包括第一铁垫片和第二铁垫片。第一铁垫片设置在主线圈和梯度磁线圈的屏蔽线圈之间，并设置在静磁场产生单元的中心轴心处。第二铁垫片设置在主线圈和屏蔽线圈的外侧，并设置在静磁场产生单元的中心轴向端。

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