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1. 发明授权

US07796002B2 Magnetic field generator for MRI 有权
标题翻译：磁场发生器用于MRI
公开(公告)号：US07796002B2
公开(公告)日：2010-09-14
申请号：US11664261
申请日：2004-09-30
申请人： Shigeo Hashimoto , Masaaki Aoki
发明人： Shigeo Hashimoto , Masaaki Aoki
IPC分类号： H01F7/02
CPC分类号： G01R33/3802 , G01R33/3806 , G01R33/383
摘要： There is provided a magnetic field generator for MRI 10 applicable to a variety of magnetic field generators, and capable of preventing separation of permanent magnets 20 which constitute permanent magnet groups 14a, 14b. The magnetic field generator for MRI 10 includes a pair of permanent magnet groups 14a, 14b. The pair of permanent magnet groups 14a, 14b each including a plurality of permanent magnets 20 bonded to each other, are opposed to each other with a space in between. The permanent magnet groups 14a, 14b have projections 18 projecting more outward than the area of contact with respective pole pieces 16a, 16b. A flange-shaped member 34 is attached to each outer circumferential surface of the pole pieces 16a, 16b, covering a space-facing surface 18a of the projection 18.
摘要翻译：提供了一种用于MRI 10的磁场发生器，其适用于各种磁场发生器，并且能够防止构成永磁体组14a，14b的永磁体20的分离。用于MRI 10的磁场发生器包括一对永磁体组14a，14b。一对永久磁铁组14a，14b，每一个包括彼此结合的多个永久磁铁20，彼此相对，并具有间隔。永久磁体组14a，14b具有比与各个极片16a，16b接触的区域更向外突出的突出部18。凸缘状构件34安装在极靴16a，16b的每个外圆周表面上，覆盖凸起18的面向空间的表面18a。

2. 发明申请

US20060168799A1 Recycling method for magnetic field generator 有权
标题翻译：磁场发生器回收方法
公开(公告)号：US20060168799A1
公开(公告)日：2006-08-03
申请号：US11393652
申请日：2006-03-31
申请人： Masaaki Aoki , Shigeo Hashimoto
发明人： Masaaki Aoki , Shigeo Hashimoto
IPC分类号： H01F7/06 , H01F1/00
CPC分类号： B09B5/00 , G01R33/383 , H01F7/0278 , H01F7/04 , H01F13/006 , Y10T29/49009 , Y10T29/4902 , Y10T29/49075 , Y10T29/49753
摘要： A magnetic field generator comprises a pair of plate yokes connected by a column yoke. The pair of plate yokes has a pair of opposed surfaces each provided with a permanent magnet including a plurality of neodymium magnets. In a method in which the neodymium magnets are demagnetized and adhesive is ground, the magnetic field generator is heated to 200° C.˜350° C. After the neodymium magnets are demagnetized, the adhesive is removed and the neodymium magnets are removed and collected from the magnetic field generator. In a method in which the adhesive is carbonized, the magnetic field generator is heated. to 350° C.˜1000° C. After carbonizing the adhesive, the neodymium magnets are removed and collected. Surfaces of the collected neodymium magnets are polished and the neodymium magnets are reused. Further, the collected neodymium magnets are re-aged and reused.
摘要翻译：磁场发生器包括由柱轭连接的一对板状轭铁。所述一对板状轭铁具有一对相对的面，每一面具有包括多个钕磁体的永磁体。在钕磁体被去磁并且粘合剂研磨的方法中，磁场产生器被加热到200℃〜350℃。在钕磁体退磁之后，去除粘合剂并且去除和收集钕磁铁来自磁场发生器。在粘合剂被碳化的方法中，磁场发生器被加热。至350℃〜1000℃。在将粘合剂碳化后，去除并收集钕磁体。所收集的钕磁体的表面被抛光，并且钕磁体被重复使用。此外，收集的钕磁体被重新使用并重新使用。

3. 发明授权

US07065860B2 Method for assembling a magnetic field generator for MRI 失效
标题翻译：用于组装MRI磁场发生器的方法
公开(公告)号：US07065860B2
公开(公告)日：2006-06-27
申请号：US10254634
申请日：2002-09-26
申请人： Masaaki Aoki , Shigeo Hashimoto
发明人： Masaaki Aoki , Shigeo Hashimoto
IPC分类号： H01F7/06
CPC分类号： G01R33/3806 , G01R33/3802 , G01R33/383 , Y10T29/49002 , Y10T29/4902 , Y10T29/49073 , Y10T29/49075 , Y10T29/49901 , Y10T29/49902 , Y10T156/1089
摘要： A plate yoke has an upper surface formed with a projection and a guiding rail. A new magnet block is transported by sliding on the upper surface of the plate yoke, and is bonded side by side with the projection or a magnet block which is already fixed. During the above operation, a magnetic member is held above the plate yoke. Preferably, the new magnet block is transported toward a corner portion, with side surfaces of the magnet block held parallel to a side surface of the projection and a side surface of the guiding rail respectively. When the magnet unit and the column yoke is connected, the column yoke or the magnet unit is lowered so that a guiding rod attached to an end face of the column yoke is inserted into a hole formed in the magnetic unit. Further, the column yoke is guided by a guiding member disposed between a permanent magnet on the plate yoke and a position where the column yoke is to be connected on the plate yoke.
摘要翻译：板状轭铁具有形成有突起和导轨的上表面。新的磁体块通过滑动在板状轭铁的上表面上运动，并且与已经固定的突起或磁体块并排地并入。在上述操作期间，磁性部件保持在板状轭铁的上方。优选地，将新的磁体块朝向拐角部分传送，磁体块的侧表面分别保持平行于突起的侧表面和导轨的侧表面。当磁体单元和列轭连接时，柱轭或磁体单元被降低，使得附接到柱轭的端面的引导杆插入到形成在磁单元中的孔中。此外，柱轭被设置在板轭铁上的永磁体与柱轭连接在板轭上的位置之间的引导构件引导。

4. 发明授权

US07737813B2 Magnetic field generator for MRI 有权
公开(公告)号：US07737813B2
公开(公告)日：2010-06-15
申请号：US11664261
申请日：2004-09-30
申请人： Shigeo Hashimoto , Masaaki Aoki
发明人： Shigeo Hashimoto , Masaaki Aoki
IPC分类号： H01F7/02
摘要： There is provided a magnetic field generator for MRI 10 applicable to a variety of magnetic field generators, and capable of preventing separation of permanent magnets 20 which constitute permanent magnet groups 14a, 14b. The magnetic field generator for MRI 10 includes a pair of permanent magnet groups 14a, 14b. The pair of permanent magnet groups 14a, 14b each including a plurality of permanent magnets 20 bonded to each other, are opposed to each other with a space in between. The permanent magnet groups 14a, 14b have projections 18 projecting more outward than the area of contact with respective pole pieces 16a, 16b. A flange-shaped member 34 is attached to each outer circumferential surface of the pole pieces 16a, 16b, covering a space-facing surface 18a of the projection 18.

5. 发明授权

US07051425B2 Recycling method for magnetic field generator 有权
标题翻译：磁场发生器回收方法
公开(公告)号：US07051425B2
公开(公告)日：2006-05-30
申请号：US10647238
申请日：2003-08-26
申请人： Masaaki Aoki , Shigeo Hashimoto
发明人： Masaaki Aoki , Shigeo Hashimoto
IPC分类号： H01F7/06
CPC分类号： B09B5/00 , G01R33/383 , H01F7/0278 , H01F7/04 , H01F13/006 , Y10T29/49009 , Y10T29/4902 , Y10T29/49075 , Y10T29/49753
摘要： A recycling method for a magnetic field generator, which includes a plate yoke, and a permanent magnet provided on the plate yoke, the magnetic field generator further including a plurality of neodymium magnets bonded together by an adhesive. The magnetic field generator is heated to 200° C.˜1000° C., then at least one of the plurality of neodymium magnets is removed; and a surface of the removed neodymium magnet is polished for reusing the neodymium magnet.
摘要翻译：一种磁场发生器的回收方法，包括板式轭铁和设置在板式轭铁上的永磁体，磁场发生器还包括通过粘合剂粘合在一起的多个钕磁体。将磁场发生器加热至200℃〜1000℃，然后除去多个钕磁铁中的至少一个; 并且去除的钕磁体的表面被抛光以重新使用钕磁体。

6. 发明授权

US06634089B1 Method for dismantling a magnetic field generator 有权
标题翻译：拆除磁场发生器的方法
公开(公告)号：US06634089B1
公开(公告)日：2003-10-21
申请号：US09615729
申请日：2000-07-13
申请人： Masaaki Aoki , Shigeo Hashimoto
发明人： Masaaki Aoki , Shigeo Hashimoto
IPC分类号： H01F706
CPC分类号： B09B5/00 , G01R33/383 , H01F7/0278 , H01F7/04 , H01F13/006 , Y10T29/49009 , Y10T29/4902 , Y10T29/49075 , Y10T29/49753
摘要： A method for dismantling a magnetic field generator, which includes the steps of providing a plate yoke, and a permanent magnet provided on the plate yoke and having a plurality of neodymium magnets bonded together by an adhesive for the magnetic field generator; heating the magnetic field generator at a temperature of 200° C.˜1000° C.; and thereafter dismantling the magnetic field generator. The dismantling method further includes the step of providing a column yoke connected to the plate yoke for the magnetic field generator.
摘要翻译：一种用于拆除磁场发生器的方法，包括提供板式磁轭的步骤和设置在板式磁轭上的永磁体，并且具有通过用于磁场发生器的粘合剂粘合在一起的多个钕磁体; 在200℃〜1000℃的温度下加热磁场发生器。然后拆除磁场发生器。拆卸方法还包括提供连接到用于磁场发生器的板轭的柱轭的步骤。

7. 发明授权

US06275128B1 MRI magnetic field generator 有权
标题翻译： MRI磁场发生器
公开(公告)号：US06275128B1
公开(公告)日：2001-08-14
申请号：US09380129
申请日：1999-09-17
申请人： Masaaki Aoki , Shigeo Hashimoto
发明人： Masaaki Aoki , Shigeo Hashimoto
IPC分类号： H01F500
CPC分类号： G01R33/383 , G01R33/3873
摘要： An object of the present invention is to provide an MRI magnetic field generator with which the magnetic field uniformity within the imaging field of view of the air gap can be adjusted easily and safely, without having to detach the gradient coils, after the MRI magnetic field generator has been installed with gradient coils already mounted on a pair of magnetic pole pieces. After the holder disk 13 has been placed on and fastened to the base disk 11, the magnetic material pellets or permanent magnet pellets for adjusting the magnetic field uniformity are inserted into the required pits disposed in a specific pattern, and if needed, spacers are placed in the gaps between [the pellets] and the cover disk 14 to position everything, after which the cover disk 14 is screwed on to hold everything together. The resulting shim holder 10 is aligned with and fastened to the gradient coil 6 or its support member.
摘要翻译：本发明的目的是提供一种磁共振磁场发生器，其可以在MRI磁场之后不需要分离梯度线圈就可以容易且安全地调节成气道视场内的磁场均匀性发电机已安装有已安装在一对磁极片上的梯度线圈。在保持盘13已经被放置并固定到基盘11上之后，将用于调节磁场均匀性的磁性材料颗粒或永磁体颗粒插入到以特定图案设置的所需凹坑中，并且如果需要，将间隔件放置在[颗粒]和盖盘14之间的间隙中以定位所有内容，之后将盖盘14拧紧以将所有物体保持在一起。所得到的垫片保持件10与梯度线圈6或其支撑构件对准并紧固。

8. 外观设计

USD438619S1 Magnetic field generating device for use in MRI 失效
公开(公告)号：USD438619S1
公开(公告)日：2001-03-06
申请号：US29107120
申请日：1999-06-25
申请人： Shigemasu Okada , Masaaki Aoki , Shigeo Hashimoto
设计人： Shigemasu Okada , Masaaki Aoki , Shigeo Hashimoto

9. 发明申请

US20080100406A1 Magnetic Field Generator For Mri 有权
标题翻译：磁场发生器
公开(公告)号：US20080100406A1
公开(公告)日：2008-05-01
申请号：US11664261
申请日：2004-09-30
申请人： Shigeo Hashimoto , Masaaki Aoki
发明人： Shigeo Hashimoto , Masaaki Aoki
IPC分类号： H01F7/02
CPC分类号： G01R33/3802 , G01R33/3806 , G01R33/383
摘要： There is provided a magnetic field generator for MRI 10 applicable to a variety of magnetic field generators, and capable of preventing separation of permanent magnets 20 which constitute permanent magnet groups 14a, 14b. The magnetic field generator for MRI 10 includes a pair of permanent magnet groups 14a, 14b. The pair of permanent magnet groups 14a, 14b each including a plurality of permanent magnets 20 bonded to each other, are opposed to each other with a space in between. The permanent magnet groups 14a, 14b have projections 18 projecting more outward than the area of contact with respective pole pieces 16a, 16b. A flange-shaped member 34 is attached to each outer circumferential surface of the pole pieces 16a, 16b, covering a space-facing surface 18a of the projection 18.
摘要翻译：提供了适用于各种磁场发生器的用于MRI 10的磁场发生器，并且能够防止构成永磁体组14a，14b的永磁体20的分离。用于MRI 10的磁场发生器包括一对永磁体组14a，14b。每对包括彼此结合的多个永磁体20的一对永磁体组14a，14b彼此相对，并且之间具有空间。永磁体组14a，14b具有比与各个极片16a，16b接触的区域更向外突出的突出部18。凸缘状构件34附接到覆盖突起18的面向空间的表面18a的极靴16a，16b的每个外圆周表面上。

10. 发明授权

US07143507B2 Recycling method for magnetic field generator 有权
标题翻译：磁场发生器回收方法
公开(公告)号：US07143507B2
公开(公告)日：2006-12-05
申请号：US11393652
申请日：2006-03-31
申请人： Masaaki Aoki , Shigeo Hashimoto
发明人： Masaaki Aoki , Shigeo Hashimoto
IPC分类号： H01F7/06 , H01F7/02
CPC分类号： B09B5/00 , G01R33/383 , H01F7/0278 , H01F7/04 , H01F13/006 , Y10T29/49009 , Y10T29/4902 , Y10T29/49075 , Y10T29/49753
摘要： A magnetic field generator comprises a pair of plate yokes connected by a column yoke. The pair of plate yokes has a pair of opposed surfaces each provided with a permanent magnet including a plurality of neodymium magnets. In a method in which the neodymium magnets are demagnetized and adhesive is ground, the magnetic field generator is heated to 200° C.˜350° C. After the neodymium magnets are demagnetized, the adhesive is removed and the neodymium magnets are removed and collected from the magnetic field generator. In a method in which the adhesive is carbonized, the magnetic field generator is heated to 350° C.˜1000° C. After carbonizing the adhesive, the neodymium magnets are removed and collected. Surfaces of the collected neodymium magnets are polished and the neodymium magnets are reused. Further, the collected neodymium magnets are re-aged and reused.
摘要翻译：磁场发生器包括由柱轭连接的一对板状轭铁。所述一对板状轭铁具有一对相对的面，每一面具有包括多个钕磁体的永磁体。在钕磁体被去磁并且粘合剂研磨的方法中，磁场产生器被加热到200℃〜350℃。在钕磁体退磁之后，去除粘合剂并且去除和收集钕磁铁来自磁场发生器。在粘合剂被碳化的方法中，将磁场发生器加热至350℃〜1000℃。在粘合剂碳化之后，去除并收集钕磁体。所收集的钕磁体的表面被抛光，并且钕磁体被重复使用。此外，收集的钕磁体被重新使用并重新使用。

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