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公开(公告)号：US06657526B2
公开(公告)日：2003-12-02
申请号：US10028993
申请日：2001-12-21
申请人： Ken Nagashima , Masaru Tomita , Kaoru Nemoto , Toshiki Herai , Masato Murakami
发明人： Ken Nagashima , Masaru Tomita , Kaoru Nemoto , Toshiki Herai , Masato Murakami
IPC分类号： H01F600
CPC分类号： H01L39/143 , H01R4/68 , Y10S505/706 , Y10S505/879
摘要： There is provided a power lead for a superconductive magnet capable of controlling the invasion of heat to liquid helium for storing superconductive coils therein and of sufficiently feeding power to the superconductive coils. The power lead for a superconductive magnet of a superconductor magneto unit for supplying a current to the superconductive coils which are cooled at a liquid helium temperature through a radiant heat shielded section which is cooled at a liquid nitrogen temperature, wherein at least a part of sections positioned inside the radiant heat shielded section of a current lead member of the superconductive magnet comprises a high temperature oxide superconductor bulk body having a critical temperature exceeding a liquid nitrogen temperature. In this case, it is preferable to apply a resin impregnation treatment to the bulk body to enforce the high temperature oxide superconductor bulk body section. If at least a part of sections other than the bulk body is formed of a braided wire, a stress caused by the relative displacement between constituents of the unit does not influence upon the bulk body, thereby reducing the risk of breakage of the unit.
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公开(公告)号：US5958843A
公开(公告)日：1999-09-28
申请号：US924337
申请日：1997-09-05
CPC分类号： H01L39/2419
摘要： A bulk superconductor is produced by subjecting REBa.sub.2 Cu.sub.3 O.sub.y oxide to oxygen annealing after many holes have been formed in the oxide body.
摘要翻译： 通过在氧化物体中形成许多孔之后使REBa2Cu3Oy氧化物进行氧退火来制造体超导体。
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公开(公告)号：US5920246A
公开(公告)日：1999-07-06
申请号：US825700
申请日：1997-03-19
CPC分类号： H01L39/143 , Y10S505/776
摘要： A composite material having a plurality of sections integrated into a unitary structure and each including a bulk of a superconductive metal oxide of RE--Ba--Cu--O wherein RE represents a rare earth element, the bulk of each of the sections having pinning centers and capable of trapping a magnetic field. A first one of the sections has a superconductive current density different from that of a second one of the sections. The composite material may be produced by assembling preformed respective sections into a unitary structure or by immersing one of the sections in a solution to grow crystal of Y--Ba--Cu--O superconductive on that section, followed by trimming.
摘要翻译： 一种复合材料，其具有整合成单一结构的多个部分，并且每个部分包括大部分RE-Ba-Cu-O的超导金属氧化物，其中RE表示稀土元素，每个部分的主体具有钉扎中心和 能够捕获磁场。 这些部分中的第一部分具有与第二部分的超导电流密度不同的超导电流密度。 复合材料可以通过将预成形的各个部分组装成单一结构或将其中一个部分浸入溶液中来生产，以在该部分上生长Y-Ba-Cu-O超导的晶体，然后进行修整。
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公开(公告)号：US06870452B2
公开(公告)日：2005-03-22
申请号：US10057819
申请日：2002-01-25
申请人： Masaru Tomita , Masato Murakami , Koichiro Sawa
发明人： Masaru Tomita , Masato Murakami , Koichiro Sawa
CPC分类号： H01L39/2474 , H01H33/004
摘要： In order to provide an inexpensive mechanical persistent current switch with a short operation time and a large capacity without causing energy loss, a mechanical persistent current switch comprises a bulk member which is made of RE—Ba—Cu—O superconductor (RE is a rare earth element), connector material, and the bulk member made of RE—Ba—Cu—O superconductor is made by a melt process in which resin is impregnated, and an current terminal and a voltage terminal pasted onto the bulk member.
摘要翻译： 为了提供具有短的操作时间和大容量而不会造成能量损失的廉价的机械持续电流开关，机械持续电流开关包括由RE-Ba-Cu-O超导体制成的体部件（RE是罕见的 接地元件），连接器材料和由RE-Ba-Cu-O超导体制成的块体通过浸渍树脂的熔融法制成，并且将电流端子和电压端子粘贴到散装件上。
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公开(公告)号：US06413624B1
公开(公告)日：2002-07-02
申请号：US09521271
申请日：2000-03-08
申请人： Masaru Tomita , Masato Murakami
发明人： Masaru Tomita , Masato Murakami
IPC分类号： B23B2704
CPC分类号： H01L39/126 , H01L39/247 , Y10T428/249955
摘要： An oxide superconductor is capable of assuring a high trapped magnetic field and maintaining its performance for a long period of time without being affected by internal or external forces, such as thermal strain or by corrosive environments. The oxide superconductor contains a resin impregnated layer incorporated with a filler material having a low value of linear thermal expansion coefficient, or contains the resin impregnated layer or a resin impregnated layer incorporated with a filler material and covered with a resin layer incorporated with the filler material having a low value of linear thermal expansion coefficient, or contains an oxide superconductive bulk body having an adhesively covering layer of resin impregnated fabric on the outside surface, or contains an oxide superconductive bulk body having on the surface thereof a resin or a resin-impregnated layer dispersedly incorporated with a filler material.
摘要翻译： 氧化物超导体能够确保高的捕获磁场并保持其长时间的性能而不受内部或外部力（例如热应变或腐蚀性环境）的影响。 氧化物超导体包含与线膨胀系数低的填充材料结合的树脂浸渍层，或者包含树脂浸渍层或与填充材料结合的树脂浸渍层，并覆盖有填充材料的树脂层 具有低的线性热膨胀系数，或包含在外表面上具有树脂浸渍织物的粘合覆盖层的氧化物超导体，或者包含氧化物超导体，其表面上具有树脂或树脂浸渍 层分散结合有填料。
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6.发明授权Process of producing a superconducting magnet made of a high-temperature bulk superconductor 有权制造由高温体超导体制成的超导磁体的方法公开(公告)号：US08512799B2
公开(公告)日：2013-08-20
申请号：US11372429
申请日：2006-03-09
申请人： Masaru Tomita , Masato Murakami
发明人： Masaru Tomita , Masato Murakami
CPC分类号： H01L39/126 , H01F6/00 , H01L39/2464 , Y10T29/49014
摘要： There is established a superconducting magnet made of a high-temperature bulk superconductor and capable of trapping a high magnetic field with ease and stably. The superconducting magnet made of the high-temperature bulk superconductor, for use by trapping a magnetic field, is made of the bulk superconductor with an artificial hole therein, a low-melting metal impregnated into, and filling up at least the artificial hole, and a heat-conducting metal material embedded in portions of the high-temperature bulk superconductor, impregnated with, and filled with the low-melting metal. The superconducting magnet can be produced by a process involving the steps of providing the artificial hole in the high-temperature bulk superconductor, disposing the heat-conducting metal material in at least the artificial hole, applying a process of impregnating and filling up at least the artificial hole with the low-melting metal, and subsequently, executing a process of magnetizing.
摘要翻译： 建立了由高温体超导体制成的超导磁体，能够容易且稳定地捕获高磁场。 由用于捕获磁场的高温体超导体制成的超导磁体由其中具有人造孔的体超导体制成，浸入并填充至少人造孔的低熔点金属，以及 嵌入高温体超导体部分的导热金属材料，浸渍并填充低熔点金属。 超导磁体可以通过以下步骤制造，该方法包括以下步骤：在高温体超导体中提供人造孔，将导热金属材料设置在至少人造孔中，施加浸渍和填充至少 具有低熔点金属的人造孔，并且随后执行磁化处理。
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7.发明授权公开(公告)号：US06313725B1
公开(公告)日：2001-11-06
申请号：US09668617
申请日：2000-09-22
IPC分类号： H01F700
CPC分类号： H01F6/006
摘要： The invention is to establish means of producing easily and at low cost “a coupled body of superconducting magnets”, comprised of multi-pole bulk superconducting magnets lined up such that the polarities thereof alternately vary so as to cause a magnetic field gradient to occur. The magnetizing method for producing a coupled body comprised of multi-pole bulk superconducting magnets with respective polarities varying comprises the steps of coupling adjacent members for bulk superconducting magnets of a plurality of members for bulk superconducting magnets with each other in such a way as to be freely superposable, foldable, and unfoldable, superposing all the members for the bulk superconducting magnets on top of one after another, and applying a magnetizing process thereto in as superposed state, and unfolding alternately and juxtaposing the respective bulk superconducting magnets as superposed after the magnetizing process as shown in FIG. 1(A) to FIG. 1(D).
摘要翻译： 本发明是建立容易且低成本地制造“超导磁体的耦合体”的方法，其包括排列成多极本体超导磁体的极性，使得其极性交替变化，从而产生磁场梯度。 用于制造由具有各自极性变化的多极体超导磁体组成的耦合体的磁化方法包括以下步骤：将多个用于块状超导磁体的多个构件的体超导磁体的相邻构件彼此连接， 自由地叠置，可折叠和不可折叠的，将大体积超导磁体的所有构件重叠在一个接一个的顶部，并且作为叠加状态施加磁化处理，并且在磁化之后交替地并置叠置的大块超导磁体 过程如图1所示。 图1（A）〜 1（D）。
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8.发明申请公开(公告)号：US20060261919A1
公开(公告)日：2006-11-23
申请号：US11372429
申请日：2006-03-09
申请人： Masaru Tomita , Masato Murakami
发明人： Masaru Tomita , Masato Murakami
IPC分类号： H01F6/00
CPC分类号： H01L39/126 , H01F6/00 , H01L39/2464 , Y10T29/49014
摘要： There is established a superconducting magnet made of a high-temperature bulk superconductor and capable of trapping a high magnetic field with ease and stably. The superconducting magnet made of the high-temperature bulk superconductor, for use by trapping a magnetic field, is made of the bulk superconductor provided with an artificial hole, a low melting metal impregnated into, and filling up at least the artificial hole, and a heat conducting metal material embedded with portions of the high-temperature bulk superconductor, impregnated with, and filled with the low melting metal. The superconducting magnet can be produced by a process comprising the steps of providing the artificial hole in the high-temperature bulk superconductor, disposing the heat conducting metal material in at least the artificial hole, applying a process of impregnating and filling up at least the artificial hole with the low melting metal, and subsequently, executing a process of magnetizing.
摘要翻译： 建立了由高温体超导体制成的超导磁体，能够容易且稳定地捕获高磁场。 由用于捕获磁场的高温大容量超导体制成的超导磁体由设置有人造孔，低熔点金属浸入并填充至少人造孔的体超导体制成，并且 导热金属材料嵌入高温体超导体的一部分，浸渍并填充低熔点金属。 超导磁体可以通过以下步骤制造，该方法包括以下步骤：在高温体超导体中提供人造孔，将导热金属材料设置在至少人造孔中，施加浸渍和填充至少人造 并且随后执行磁化处理。
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9.发明授权公开(公告)号：US07046110B2
公开(公告)日：2006-05-16
申请号：US10454723
申请日：2003-06-04
申请人： Masaru Tomita , Masato Murakami
发明人： Masaru Tomita , Masato Murakami
IPC分类号： H01F1/00
CPC分类号： H01L39/126 , H01F6/00 , H01L39/2464 , Y10T29/49014
摘要： There is established a superconducting magnet made of a high-temperature bulk superconductor and capable of trapping a high magnetic field with ease and stably. The superconducting magnet made of the high-temperature bulk superconductor, for use by trapping a magnetic field, is made of the bulk superconductor provided with an artificial hole, a low melting metal impregnated into, and filling up at least the artificial hole, and a heat conducting metal material embedded with portions of the high-temperature bulk superconductor, impregnated with, and filled with the low melting metal. The superconducting magnet can be produced by a process comprising the steps of providing the artificial hole in the high-temperature bulk superconductor, disposing the heat conducting metal material in at least the artificial hole, applying a process of impregnating and filling up at least the artificial hole with the low melting metal, and subsequently, executing a process of magnetizing.
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10.发明授权Oxide superconductor having excellent crack-resistant property and process of producing same 有权具有优异抗裂性能的氧化物超导体及其制造方法公开(公告)号：US06365553B1
公开(公告)日：2002-04-02
申请号：US09648195
申请日：2000-08-25
申请人： Masaru Tomita , Masato Murakami
发明人： Masaru Tomita , Masato Murakami
IPC分类号： H01B1200
CPC分类号： H01L39/2419 , H01L39/126 , Y10S505/729 , Y10S505/785
摘要： The invention provides an oxide superconductor capable of sufficiently withstanding external forces such as a large electromagnetic force and thermal stresses accompanying rapid heating and cooling while in service, and internal stresses so as to be able to exhibit a high trapped magnetic field stably over a long period of time. The oxide superconductor such as, for example, “a copper oxide superconductor containing rare earth elements”, is composed of an oxide superconductive bulk body impregnated with a low melting metal or an oxide superconductive bulk body impregnated with a low melting metal and having a thin film of the low melting metal formed on the external surface thereof. Such oxide superconductors as described above can be produced by a process whereby the oxide superconductive bulk body kept in an atmosphere of reduced pressure is brought into contact with the low melting metal. Further, if the oxide superconductive bulk body is provided with pores beforehand, so that contact faces thereof with the low melting metal in a molten state are both the external surface of the oxide superconductive bulk body and the inner surface of the respective pores, further improvements in production efficiency and product performance can be expected.
摘要翻译： 本发明提供一种氧化物超导体，其能够在使用时充分耐受诸如大电磁力和伴随快速加热和冷却的热应力等外力，以及内部应力，以便能够长时间稳定地显示出高的捕获磁场 的时间。 氧化物超导体，例如“含有稀土元素的氧化铜超导体”，由浸渍有低熔点金属或氧化物超导体的氧化物超导体本体浸渍有低熔点金属并具有薄的 在其外表面上形成的低熔点金属薄膜。 这样的氧化物超导体可以通过使保持在减压气氛中的氧化物超导体与低熔点金属接触的方法来制造。 此外，如果氧化物超导体本体预先设置有孔，使得其与熔融状态的低熔点金属的接触面既是氧化物超导体本体的外表面和各孔的内表面，则进一步改进 在生产效率和产品性能方面都可以预期。
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