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1. 发明专利

JPS633404A SUPERCONDUCTING MAGNET 失效
公开(公告)号：JPS633404A
公开(公告)日：1988-01-08
申请号：JP14647986
申请日：1986-06-23
申请人： TOSHIBA CORP
发明人： SASAKI KATSUTOKI , OKUMA KEIJI
IPC分类号： H01L39/04 , A61B5/055 , A61B10/00 , G01R33/38 , G01R33/3815 , H01F6/00
摘要： PURPOSE:To prevent the vibration generating when the title magnet is in transit by a method wherein both end parts in axial direction of a radial shield are suspended from the inner surface of the outer cylinder of a vacuum container, both end parts in axial direction of a cryogenic temperature container are hung down from the radial shield using a load support respectively, and they are supported by an axis support in axial direction. CONSTITUTION:The cryogenic temperature container 12, to be arranged in the heat-insulated vacuum space 11c of a vacuum container 11, and both end parts of a radial shield 15 are suspended from a load support 16. Besides, a plurality of points on the outer circumferential surface at both end part sides of the container 12 are supported in axial direction to the corner part on the inner circumferential side of the first radiant shield 15a using the first supporting member 17a respectively, and also a plurality of points on the outer circumferential surface on both end part sides of the shield 15a are supported in axial direction to the corner part on the inner circumferential side of the outer cylinder 11b of the container 11 by the second supporting member 17b.

2. 发明专利

JPH03116907A SUPERCONDUCTING ELECTROMAGNET 失效
公开(公告)号：JPH03116907A
公开(公告)日：1991-05-17
申请号：JP25588189
申请日：1989-09-29
申请人： TOSHIBA CORP
发明人： SASAKI KATSUTOKI
IPC分类号： H01F6/04
摘要： PURPOSE:To increase the mechanical strength of the title electromagnet by a method wherein the coupling point of the inner end of a support and a cryogenic temperature container is determined in such a manner that the amount of heat shrinkage on the whole length of the support and the amount of heat shrinkage of the cryogenic temperature container from the support inner end to coupling point will be made equal. CONSTITUTION:The outer edges of supports 9a to 9c,... are coupled to the inner surface of the outer cylinder 1a of a vacuum container 1, also the inner edge of each support is passed through a radiant shield 8, and coupled to the terminal plates 5a and 5b of a cryogenic temperature container 4. In this case, after completion of assembling of the vacuum container 4, a cryogenic temperature liquid 6 is injected into the cryogenic temperature container 4, and a superconducting coil 7 is used in a superconducting state. Even when the supports 9a to 9c shrink, when the cryogenic temperature liquid 6 is injected, the cryogenic temperature liquid 6 is also thermally shrinks, and besides, the amounts of both thermal shrinkage are equal. As a result, there is no change in the center of magnetic field when the superconducting coil 7 is cooled, and the generation of looseness and thermal stress on the supports 9a to 9c can also be prevented.

3. 发明专利

JPS6336504A VERY LOW TEMPERATURE EQUIPMENT 失效
公开(公告)号：JPS6336504A
公开(公告)日：1988-02-17
申请号：JP17913486
申请日：1986-07-30
申请人： TOSHIBA CORP
发明人： SASAKI KATSUTOKI
IPC分类号： H01L39/04 , A61B5/055 , A61B10/00 , G01R33/3815 , H01F6/04
摘要： PURPOSE:To improve the detection accuracy of the leak test by keeping the adsorbing agent of the discharged gas away from the inside of the vacuum container at the leak test time. CONSTITUTION:At the initial cooling time, a first valve 8 is first closed, a second valve 10 is opened and a adsorbing agent reservoir 7 is evacuated by a vacuum pump 12 in advance, and in this condition, the inside of a vacuum container 3 is subjected to a leak test. Therefore, since an adsorbing agent 6 has not yet been inserted into an adsorbing agent receiver 5 attached to a very low temperature container 1, if a liquid helium has leaks out from the very low temperature container 1, it can positively be detected. Then, when it is ensured that the liquid helium does not leak, the second valve 10 is closed and the first valve 8 is opened. Whereupon, the adsorbing agent 6 falls from the adsorbing agent reservoir 7 through the first valve 8 and a conduit 9 into the adsorbing agent receiver 5, and the discharged gas at the cooling time is adsorbed by the adsorbing agent 6.

4. 发明专利

JPS6288379A CRYOGENIC APPARATUS 失效
公开(公告)号：JPS6288379A
公开(公告)日：1987-04-22
申请号：JP22772985
申请日：1985-10-15
申请人： TOSHIBA CORP
发明人： KIMURA HIROYUKI , SASAKI KATSUTOKI
IPC分类号： F25D3/10 , F25B9/00 , H01L39/04
摘要： PURPOSE:To support vibrations during transportation or at the time of earthquake rigidly and to make quantity of intruded heat very small, by linking a cryogenic fluid tank and a radiation shield, linking the radiation shield and a vacuum container, and proving weight supports, which mainly support weight, and reinforcing supports, which mainly support horizontal loads. CONSTITUTION:Vibrating loads act on inner and outer weight supports 4 and 6 and inner and outer reinforcing supports 5 and 7 during transportation or at the time of earthquake. The loads in the up and down directions are mainly supported by the inner and outer weight supports 4 and 6. The loads in the horizontal directions are mainly supported by the inner and outer reinforcing supports 5 and 7. The elevation angle of the inner and outer weight supports 4 and 6 with respect to the horizontal loads is made to be 60 deg.. Therefore, the horizontal loads can be shared by the weight supports. The elevation angle of the reinforcing angle with respect to the vertical loads is 20 deg.-40 deg., e.g., elevation angle of 30 deg.. Therefore the vertical loads can be partially supported.

5. 发明专利

JPS57118608A Super-conductive coil 失效
标题翻译：超导线圈
公开(公告)号：JPS57118608A
公开(公告)日：1982-07-23
申请号：JP469081
申请日：1981-01-16
申请人： Toshiba Corp
发明人： SASAKI KATSUTOKI , OOSAKI OSAMU
IPC分类号： H01F6/04 , H01F6/06
CPC分类号： H01F6/06
摘要： PURPOSE:To enhance cooling efficiency, keep stability, and enable the device to be more compact, by providing an inter-layer spacer which is made thinner at the outside diameter than at the inside diameter of a coil corresponding to an eddy current loss produced between layers of super-conductive wire. CONSTITUTION:A super-conductive wire 2 is wound coaxially around a winding frame 1. An inter-turn insulator 3 is provided to insulate between the super- conductive wire 2 turns. Inter-layer spacers 41, 42, 43, 44, 45 are provided among layers of the super-conductive wire 2 to make thinner at the outside diameter than at the inside diameter of a coil. This makes cooling channels 51, 52, 53, 54, 55 formed among these inter-layer spacers and the layers narrower in the same direction and smaller in sectional area. The thickness of inter-layer spacer is determined by obtaining an eddy current loss produced in the super-conductive wire due to magnetic flux distribution of the coil in every layer unit, so that the void rate of liquid helium at the critical temperature of this wire material is wholly constant within all of the cooling channels.
摘要翻译：目的：为了提高冷却效率，保持稳定性，并且通过提供在外径上比在线圈的内径更薄的层间间隔件，使得器件更紧凑，对应于线圈内径产生的涡流损耗超导电线层。构成：超导线2围绕绕组框架1同轴缠绕。提供匝间绝缘体3以在超导线2匝之间绝缘。层间间隔物41,42,43,44,45设置在超导电线2的层之间，以使得在外径处比线圈的内径更薄。这使得形成在这些间隔层之间的冷却通道51,52,53,54,55，并且层在相同方向上变窄并且截面积变小。层间间隔物的厚度通过由于线圈的每个层单位的磁通分布而获得在超导线中产生的涡流损耗来确定，使得在该线的临界温度下液氦的空隙率材料在所有的冷却通道内是完全恒定的。

6. 发明专利

JPH11342349A MAGNETIC SEPARATOR 失效
公开(公告)号：JPH11342349A
公开(公告)日：1999-12-14
申请号：JP15129298
申请日：1998-06-01
申请人： TOSHIBA CORP
发明人： MIHASHI JUNKO , SASAKI KATSUTOKI
IPC分类号： B03C1/00
摘要： PROBLEM TO BE SOLVED: To provide a magnetic separator capable of recovering the magnetic grains in a treated fluid efficiently and capable of being easily backwashed. SOLUTION: A vacuum vessel 16 in which superconducting coils 15 are housed is constituted of an annular body having a notch 161 at a part and arranged to surround a canister 11. The canister 11 is linearly moved and drawn out of the notch 161, and the superconducting coils 15 are kept away from the canister 11 when the separator is backwashed.

7. 发明专利

JPH0722231A SUPERCONDUCTING MAGNET FOR MRI SYSTEM 失效
公开(公告)号：JPH0722231A
公开(公告)日：1995-01-24
申请号：JP14897593
申请日：1993-06-21
申请人： TOSHIBA CORP
发明人： OTA TADATOSHI , TANAKA AKIO , TSURUGA SHIGENORI , OGUCHI YOSHIHIRO , KIHARA KEIKO , NAKAYA KOICHI , SASAKI KATSUTOKI
IPC分类号： H01F6/00
摘要： PURPOSE:To protect a radiation shield against fracture, deformation and vibration due to electromagnetic force even upon quenching of a superconducting coil and to eliminate influence on the image information. CONSTITUTION:The superconducting coil for MRI system comprises a cylindrical superconducting coil 1, a radiation shield 4 comprising a cylindrical body 4a surrounding the superconducting coil 1 provided with a plurality of slits 8 in the axial direction at an appropriate interval, and a vacuum vessel 5 having a central normal temperature bore housing the superconducting coil 1 and the radiation shield 4 substantially coaxially, wherein the radiation shield 4 is provided with an FRP layer covering each slit 8 on the inner and/or outer peripheral surfaces of the cylindrical body 4a.

8. 发明专利

JPH05154124A SUPERCONDUCTING MAGNET FOR MRI DEVICE 失效
公开(公告)号：JPH05154124A
公开(公告)日：1993-06-22
申请号：JP32434091
申请日：1991-12-09
申请人： TOSHIBA CORP
发明人： SASAKI KATSUTOKI , KISHI YOSHIYASU
IPC分类号： A61B5/055 , G01R33/035 , H01F6/00
摘要： PURPOSE:To improve the dimensional accuracy of a coil and the consequent uniformity of magnetic fields and to provide the superconducting magnet for the MRI device having a high insulating characteristic. CONSTITUTION:An insulating member 3b is molded on the outer peripheral surface of an inside cylinder 3a of a helium container to form a winding frame. The insulating member 3b is formed by winding a glass coated with an epoxy resin or molding the resin by a filament winding method, then finishing the molding to prescribed accuracy by machining.

9. 发明专利

JPH0420326A STATIC MAGNETIC FIELD MAGNET DEVICE FOR MRI DEVICE 失效
公开(公告)号：JPH0420326A
公开(公告)日：1992-01-23
申请号：JP12305390
申请日：1990-05-15
申请人： TOSHIBA CORP
发明人： SASAKI KATSUTOKI
IPC分类号： A61B5/055 , G01R33/3815 , G01R33/421 , H05K9/00
摘要： PURPOSE:To improve the uniformity of a magnetic field and to decrease the leakage of magnetic field by providing a magnet supporting body on the inside peripheral surface part of a cylindrical shell body consisting of a magnetic material, and supporting a static magnetic field magnet by the magnet supporting body concerned. CONSTITUTION:A cylindrical shell body 1 consisting of magnetic material and an end cover 2 having a center opening consisting of a magnetic material are coupled with a bolt 3, and by supporting them by a shielding body leg 4, and attaching a magnet supporting body 5 onto the inside peripheral surface of the cylindrical shell body 1, a magnetic shielding body is formed. By said constitution, the cylindrical shell body 1 is adopted, and also, a superconductive magnet 10 can be contained in the inside of the magnetic shielding body, therefore, the number of notches and holes decrease, and disturbance of a magnetic flux caused by the notch and the hole decreases, uniformity of the magnetic field can be improved, and also, a leakage magnetic field can be made small.

10. 发明专利

JPS63252407A MAGNETIC SHIELDING MATERIAL OF MAGNETOSTATIC FIELD MAGNET FOR MAGNETIC RESONANCE IMAGING EQUIPMENT 失效
公开(公告)号：JPS63252407A
公开(公告)日：1988-10-19
申请号：JP13377687
申请日：1987-05-29
申请人： TOSHIBA CORP
发明人： SASAKI KATSUTOKI , OKUMA KEIJI , MATSUTANI KINYA
IPC分类号： G12B17/02 , A61B5/055 , A61B10/00 , G01R33/20 , G01R33/421 , H01F7/20 , H05K9/00
摘要： PURPOSE:To assemble and install a magnetostatic field magnet and its shielding material by human power only by a method wherein a cylindrical shell is so constructed as to be separated and moved horizontally and the magnetostatic field magnet and the magnetic shielding material are separated when they are conveyed in a hospital. CONSTITUTION:A magnetic shielding unit 24 can be divided into two along a horizontal direction from a parting plane 33 by removing bolts 35 and can be moved horizontally along the directions of arrows 37 easily by inserting conveying tools such as rollers or casters under the legs 36. The method of assemblying for installation in the room of a hospital or the like is such that the casters 38 are attached to the legs of the divided shielding units 24a and 24b and the divided units 24a and 24b are moved along the directions of the arrows 37 to cover a fixed magnetostatic field magnet 15 and the divided units 24a and 24b are jointed at the parting plane 33. With this constitution, the assembly and the installation can be carried out by human power only.

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