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1. 发明授权

US06856223B1 Open-type magnet device for MRI 失效
标题翻译：用于MRI的开放型磁铁装置
公开(公告)号：US06856223B1
公开(公告)日：2005-02-15
申请号：US10070998
申请日：2000-09-13
申请人： Hirotaka Takeshima , Takao Honmei , Hiroshi Tazaki , Kazuki Moritsu , Shigenori Kuroda , Hajime Tanabe
发明人： Hirotaka Takeshima , Takao Honmei , Hiroshi Tazaki , Kazuki Moritsu , Shigenori Kuroda , Hajime Tanabe
IPC分类号： A61B5/055 , G01R33/38 , G01R33/3815 , G01R33/3873 , G01R33/3875 , H01F6/00 , G01V3/00
CPC分类号： G01R33/3873 , G01R33/3806
摘要： An open-type magnet device for MRI includes a pair of upper and lower magnet assemblies, and shims are provided on opposite sides of their cooling containers and/or in holes passing through central portions of the cooling containers so as to facilitate providing a highly homogeneous static magnetic field.
摘要翻译：用于MRI的开放型磁铁装置包括一对上下磁体组件，并且垫片设置在其冷却容器的相对侧和/或穿过冷却容器的中心部分的孔中，以便于提供高度均匀的静磁场。

2. 发明授权

US06781492B2 Superconducting magnetic apparatus 失效
标题翻译：超导磁性设备
公开(公告)号：US06781492B2
公开(公告)日：2004-08-24
申请号：US10191466
申请日：2002-07-10
申请人： Hirotaka Takeshima , Takao Hommei , Hajime Kawano , Hiroshi Tazaki , Takeshi Yatsuo , Shigenori Kuroda , Hajime Tanabe
发明人： Hirotaka Takeshima , Takao Hommei , Hajime Kawano , Hiroshi Tazaki , Takeshi Yatsuo , Shigenori Kuroda , Hajime Tanabe
IPC分类号： H01F600
CPC分类号： G01R33/3806 , G01R33/3815 , G01R33/383 , G01R33/3873
摘要： A superconducting magnet apparatus. By forming one or more holes in each of platelike ferromagnetic substances forming a magnetic shield for focusing the magnetic flux generated by superconducting coils, the flow of lines of magnetic flux is adjusted. Thereby, a static magnetic field in a measurement space is corrected. By disposing coupling tubes for supporting two cooling vessels housing superconducting coils on the rear side with respect to a central axis (Z axis) of the measurement space of the vertical direction, access to the subject is facilitated. In addition, the magnetic shield has an opening portion wider than the superconducting magnet on its side face. After the magnetic shield has been assembled, the superconducting magnet can be inserted from the opening portion.
摘要翻译：超导磁体装置。通过在形成用于聚焦超导线圈产生的磁通的磁屏蔽的板状铁磁性物质的每一个中形成一个或多个孔，调节磁通线的流动。由此，校正测量空间中的静磁场。通过设置用于支撑相对于垂直方向的测量空间的中心轴线（Z轴）在后侧容纳超导线圈的两个冷却容器的联接管，便于对对象的访问。此外，磁屏蔽件的侧面具有比超导磁体宽的开口部。在组装磁屏蔽之后，可以从开口部分插入超导磁体。

3. 发明授权

US06437672B1 Superconducting magnetic device 失效
标题翻译：超导磁性装置
公开(公告)号：US06437672B1
公开(公告)日：2002-08-20
申请号：US09101048
申请日：1998-06-29
申请人： Hirotaka Takeshima , Takao Hommei , Hajime Kawano , Hiroshi Tazaki , Takeshi Yatsuo , Shigenori Kuroda , Hajime Tanabe
发明人： Hirotaka Takeshima , Takao Hommei , Hajime Kawano , Hiroshi Tazaki , Takeshi Yatsuo , Shigenori Kuroda , Hajime Tanabe
IPC分类号： H01F600
CPC分类号： G01R33/3806 , G01R33/3815 , G01R33/383 , G01R33/3873
摘要： A superconducting magnet apparatus. By forming one or more holes in each of platelike ferromagnetic substances forming a magnetic shield for focusing the magnetic flux generated by superconducting coils, the flow of lines of magnetic flux is adjusted. Thereby, a static magnetic field in a measurement space is corrected. By disposing coupling tubes for supporting two cooling vessels housing superconducting coils on the rear side with respect to a central axis (Z axis) of the measurement space of the vertical direction, access to the subject is facilitated. In addition, the magnetic shield has an opening portion wider than the superconducting magnet on its side face. After the magnetic shield has been assembled, the superconducting magnet can be inserted from the opening portion.
摘要翻译：超导磁体装置。通过在形成用于聚焦超导线圈产生的磁通的磁屏蔽的板状铁磁性物质的每一个中形成一个或多个孔，调节磁通线的流动。由此，校正测量空间中的静磁场。通过设置用于支撑相对于垂直方向的测量空间的中心轴线（Z轴）在后侧容纳超导线圈的两个冷却容器的联接管，便于对对象的访问。此外，磁屏蔽件的侧面具有比超导磁体宽的开口部。在组装磁屏蔽之后，可以从开口部分插入超导磁体。

4. 发明授权

US06600318B1 Open MRI system with a vertical static field and an imaging volume closer to the lower than to the upper magnet assembly 失效
标题翻译：开放式MRI系统具有垂直静电场和成像体积，接近低于上磁体组件
公开(公告)号：US06600318B1
公开(公告)日：2003-07-29
申请号：US09529874
申请日：2000-04-20
申请人： Shigeru Kakugawa , Shouji Kitamura , Nobuhiro Hara , Akiyoshi Komura , Noriaki Hino , Hajime Kawano , Takao Honmei , Hirotaka Takeshima , Takeshi Yatsuo , Hiroshi Tazaki
发明人： Shigeru Kakugawa , Shouji Kitamura , Nobuhiro Hara , Akiyoshi Komura , Noriaki Hino , Hajime Kawano , Takao Honmei , Hirotaka Takeshima , Takeshi Yatsuo , Hiroshi Tazaki
IPC分类号： G01V300
CPC分类号： G01R33/3806
摘要： A magnet device is provided with two static magnetic field generating sources 14a and 14b disposed so as to oppose each other while placing a person to be inspected therebetween, a vessel 15 containing the static magnetic field generating source 14a and a vessel 16 containing the static magnetic field generating source 14b, and the vessels 15 and 16 are disposed at positions asymmetric with respect to the person to be inspected. Thereby, a magnet device and an MRI device using the same which can extend a space above the person to be inspected on a bed while avoiding introduction of a large scale device which causes to increase the manufacturing cost thereof.
摘要翻译：磁体装置设置有两个静态磁场产生源14a和14b，它们彼此相对设置，同时放置要检查的人，包含静磁场发生源14a的容器15和容纳静磁场的容器16 场发生源14b，容器15和16设置在相对于被检查者不对称的位置。因此，使用该磁体装置和MRI装置的磁体装置和MRI装置可以在同时避免引入导致增加其制造成本的大规模装置。

5. 发明授权

US06853281B1 Magnet apparatus and mri apparatus 失效
标题翻译：磁铁设备和仪器
公开(公告)号：US06853281B1
公开(公告)日：2005-02-08
申请号：US09554155
申请日：1998-12-01
申请人： Shigeru Kakugawa , Shouji Kitamura , Nobuhiro Hara , Akiyoshi Komura , Noriaki Hino , Hajime Kawano , Takao Honmei , Hirotaka Takeshima , Takeshi Yatsuo , Hiroshi Tazaki
发明人： Shigeru Kakugawa , Shouji Kitamura , Nobuhiro Hara , Akiyoshi Komura , Noriaki Hino , Hajime Kawano , Takao Honmei , Hirotaka Takeshima , Takeshi Yatsuo , Hiroshi Tazaki
IPC分类号： G01R33/38 , G01R33/381 , G01R33/3815 , G01V3/00
CPC分类号： G01R33/3806 , G01R33/381 , G01R33/3815
摘要： A magnet device includes two sets of static magnetic field generation sources spaced from each other in the vertical direction such that the uniform magnetic field region (patient space) is between then. Each set has concentric current carrying coils to generate a uniform magnetic field in a first direction (the vertical direction). Several such coils are used in each set, disposed such that when a first axis which is parallel to the first (vertical) direction and passes substantially through the centers of the current carrying coils crosses, at a first point, a second axis which is orthogonal to the first axis and is at substantially equal distance from the respective static magnetic field generation sources, the current carrying coils are disposed in such a manner that when geometrical centers of cross sections of the current carrying coils are projected on a first straight line that is in a first plane containing the first axis, the second axis and the first point and passing through the first point, the directions of the currents of the carrying coils at the respective corresponding projections align alternatively in positive and negative directions on the first straight line.
摘要翻译：磁体装置包括在垂直方向彼此间隔开的两组静态磁场产生源，使得均匀的磁场区域（患者空间）在之间。每组具有同心的载流线圈，以在第一方向（垂直方向）上产生均匀的磁场。在每组中使用若干这样的线圈，这样设置成使得当第一轴线平行于第一（垂直）方向并且基本上穿过载流线圈的中心穿过时，在第一点处与正交的第二轴线交叉到第一轴线并且距离相应的静态磁场产生源基本上相等的距离，载流线圈以这样的方式设置，使得当载流线圈的横截面的几何中心投影在第一直线上时在包含第一轴线，第二轴线和第一点并穿过第一点的第一平面中，各个相应突起处的输送线圈的电流方向在第一直线上在正向和负向上交替排列。

6. 发明授权

US06667676B2 Superconducting magnet and magnetic resonance imaging apparatus using the same 失效
标题翻译：超导磁体和使用其的磁共振成像装置
公开(公告)号：US06667676B2
公开(公告)日：2003-12-23
申请号：US10292003
申请日：2002-11-12
申请人： Hiroyuki Watanabe , Tsutomu Yamamoto , Yoshihide Wadayama , Hirotaka Takeshima , Kenji Sakakibara , Takao Honmei
发明人： Hiroyuki Watanabe , Tsutomu Yamamoto , Yoshihide Wadayama , Hirotaka Takeshima , Kenji Sakakibara , Takao Honmei
IPC分类号： G01V300
CPC分类号： H01F6/04 , F17C13/087 , F17C2203/0687 , F17C2221/017 , F17C2223/0161 , G01R33/3806 , G01R33/3815 , G01R33/3854
摘要： Effect of vibration of a refrigerator on a superconducting coil is reduced to reduce disturbance in an image. A coolant tank for supplying a coolant to coil containers is provided separately from the coil containers, and the refrigerator is placed in the coolant tank, and a coolant circulation passage connects between the coolant tank and the coil containers.
摘要翻译：降低冰箱对超导线圈的振动的影响，以减少图像中的干扰。与线圈容器分开设置用于向线圈容器供应冷却剂的冷却剂罐，并且将冰箱放置在冷却剂箱中，并且冷却剂循环通道连接在冷却剂箱和线圈容器之间。

7. 发明授权

US06909348B2 Low-leakage magnetic-field magnet and shield coil assembly 失效
标题翻译：低泄漏磁场磁体和屏蔽线圈组件
公开(公告)号：US06909348B2
公开(公告)日：2005-06-21
申请号：US10433428
申请日：2001-12-04
申请人： Shigeru Kakugawa , Katsunori Azuma , Tsuyoshi Wakuda , Yoshihide Wadayama , Hirotaka Takeshima , Kenji Sakakibara , Takeshi Yatsuo , Takao Honmei
发明人： Shigeru Kakugawa , Katsunori Azuma , Tsuyoshi Wakuda , Yoshihide Wadayama , Hirotaka Takeshima , Kenji Sakakibara , Takeshi Yatsuo , Takao Honmei
IPC分类号： G01R33/38 , G01R33/3815 , G01R33/421 , H01F7/00
CPC分类号： G01R33/421 , G01R33/3806 , G01R33/3815
摘要： A magnet device provided with a shield current carrying means in which two sets of magneto-static field generating sources for generating magnetic fields directed towards a first direction are disposed facing each other across a finite region and at least one set of the magneto-static field generating sources are disclosed on at least two almost concentric circles. A first plane includes a first axis, a second axis and a first point. The first point is a point of insertion between the first axis parallel to the first direction and passing almost through the center of the shield current carrying means. The second axis crosses at right angles to the first axis and is spaced almost equal distance from the two sets of the generating sources. The alternately arranged positive and negative current carrying directions of the shield current carrying means are set in the order of increasing value of θn.
摘要翻译：一种具有屏蔽电流承载装置的磁体装置，其中用于产生朝向第一方向的磁场的两组磁静电场产生源跨越有限区域并且至少一组磁静态场在至少两个几乎同心圆上公开发生源。第一平面包括第一轴，第二轴和第一点。第一点是在第一轴平行于第一方向并且几乎穿过屏蔽载流装置的中心之间的插入点。第二轴线与第一轴线成直角交叉，与两组发电源的距离几乎相等。屏蔽电流承载装置的交替布置的正和负电流承载方向被设置为以该数量增加的顺序。

8. 发明授权

US06816051B2 Superconducting magnet and magnetic resonance imaging apparatus using the same 失效
标题翻译：超导磁体和使用其的磁共振成像装置
公开(公告)号：US06816051B2
公开(公告)日：2004-11-09
申请号：US10633508
申请日：2003-08-05
申请人： Hiroyuki Watanabe , Tsutomu Yamamoto , Yoshihide Wadayama , Hirotaka Takeshima , Kenji Sakakibara , Takao Honmei
发明人： Hiroyuki Watanabe , Tsutomu Yamamoto , Yoshihide Wadayama , Hirotaka Takeshima , Kenji Sakakibara , Takao Honmei
IPC分类号： G01V300
CPC分类号： H01F6/04 , F17C13/087 , F17C2203/0687 , F17C2221/017 , F17C2223/0161 , G01R33/3806 , G01R33/3815 , G01R33/3854
摘要： Effect of vibration of a refrigerator on a superconducting coil is reduced to reduce disturbance in an image. A coolant tank for supplying a coolant to coil containers is provided separately from the coil containers, and the refrigerator is placed in the coolant tank, and a coolant circulation passage connects between the coolant tank and the coil containers.
摘要翻译：冷却器对超导线圈的振动的影响减小，以减少图像中的干扰。用于向线圈容器供应冷却剂的冷却剂罐与线圈容器分开设置，并且将冰箱放置在冷却剂箱中，并且将冷却剂循环通道连接在冷却剂箱和线圈容器之间。

9. 发明授权

US06664876B2 Superconducting magnet and magnetic resonance imaging apparatus using the same 失效
标题翻译：超导磁体和使用其的磁共振成像装置
公开(公告)号：US06664876B2
公开(公告)日：2003-12-16
申请号：US10170392
申请日：2002-06-14
申请人： Hiroyuki Watanabe , Tsutomu Yamamoto , Yoshihide Wadayama , Hirotaka Takeshima , Kenji Sakakibara , Takao Honmei
发明人： Hiroyuki Watanabe , Tsutomu Yamamoto , Yoshihide Wadayama , Hirotaka Takeshima , Kenji Sakakibara , Takao Honmei
IPC分类号： H01F500
CPC分类号： H01F6/04 , G01R33/3806 , G01R33/3815 , G01R33/3854
摘要： Effect of vibration of a refrigerator on a superconducting coil is reduced to reduce disturbance in an image. A coolant tank for supplying a coolant to coil containers is provided separately from the coil containers, and the refrigerator is placed in the coolant tank, and a coolant circulation passage connects between the coolant tank and the coil containers.
摘要翻译：冷却器对超导线圈的振动的影响减小，以减少图像中的干扰。用于向线圈容器供应冷却剂的冷却剂罐与线圈容器分开设置，并且将冰箱放置在冷却剂箱中，并且将冷却剂循环通道连接在冷却剂箱和线圈容器之间。

10. 发明授权

US6037850A Superconducting magnet apparatus and method of regulating magnetization thereof 失效
标题翻译：超导磁体装置及其磁化强度的调节方法
公开(公告)号：US6037850A
公开(公告)日：2000-03-14
申请号：US952722
申请日：1998-01-16
申请人： Takao Honmei , Hirotaka Takeshima , Hajime Kawano , Yutaka Takuma , Munenori Kotabe , Naoki Maki , Nobuhiro Hara , Shigeru Kakugawa , Noriaki Hino
发明人： Takao Honmei , Hirotaka Takeshima , Hajime Kawano , Yutaka Takuma , Munenori Kotabe , Naoki Maki , Nobuhiro Hara , Shigeru Kakugawa , Noriaki Hino
IPC分类号： H01F13/00 , G01R33/3815 , H01F6/00 , H01F1/00
CPC分类号： H01F6/00 , G01R33/3815
摘要： A small-sized high-precision superconducting magnet apparatus which can prevent an occurrence of the principal factor in generating a quench and can restrain the magnetic flux from varying with time, and a method of regulating the magnetization of such a superconducting magnet apparatus, by which the superconducting magnet apparatus can be uniformly magnetized. Superconducting magnet apparatus of the present invention has: a cooling container; a holding medium for holding a persistent current therein, which is placed in said cooling container and is operative to generate a magnetic flux in a uniform magnetic field region (FOV); static-magnetic-field generating means composed of a plurality of cylinders using superconducting composite plate materials; a cylinder supporting base for holding the plurality of cylinders; and temperature regulating devices (not shown in FIG. 67) embedded in the cylinders, respectively. Magnetization of the static-magnetic-field generating means is performed by induction-magnetizing. Further, the regulation of a magnetization value of the static-magnetic-field generating means is regulated by controlling the temperature of the cylinders by means of the temperature regulating devices.
摘要翻译： PCT No.PCT / JP97 / 00951 Sec。 371日期1998年1月16日 102（e）日期1998年1月16日PCT 1997年3月21日PCT公布。出版物WO97 / 35328 日期1997年9月25日一种小型高精度超导磁体装置，其能够防止产生淬火的主要因素的发生并且可以抑制磁通量随时间变化，以及调节这种超导体的磁化的方法磁铁装置可以使超导磁体装置均匀地磁化。本发明的超导磁体装置具有：冷却容器; 用于保持持久电流的保持介质，其被放置在所述冷却容器中并且可操作以在均匀的磁场区域（FOV）中产生磁通量; 使用超导复合板材料的多个气缸构成的静磁场产生装置; 用于保持多个气缸的气缸支撑基座; 和分别嵌入在气缸中的温度调节装置（图67中未示出）。通过感应磁化来进行静磁场产生装置的磁化。此外，通过温度调节装置控制气缸的温度来调节静磁场产生装置的磁化值的调节。

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