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    Permanent current switch
    4.
    发明授权
    Permanent current switch 有权
    永久电流开关

    公开(公告)号：US07602269B2

    公开(公告)日：2009-10-13

    申请号：US11654008

    申请日：2007-01-17

    申请人： Masaya Takahashi ,  Kazuhide Tanaka ,  Michiya Okada

    发明人： Masaya Takahashi ,  Kazuhide Tanaka ,  Michiya Okada

    IPC分类号： H01F7/00 ,  H01F1/00 ,  H01F6/00

    CPC分类号： H01L39/20

    摘要： There is disclosed a permanent current switch which has a high temperature margin and which is thermally stable and which securely performs a switching operation between a superconducting state and a normal conducting state. The permanent current switch of the present invention has a coiled superconducting wire and a heater wire which switches the superconducting wire between the superconducting state and the normal conducting state, the superconducting wire is a magnesium diboride superconducting wire having a high-resistance metal on an outer side and a magnesium diboride superconducting portion on an inner side and prepared by forming a superconducting metal on a layer between the high-resistance metal and the magnesium diboride superconducting portion, and the permanent current switch further comprises a superconductive connecting section superconductively connected to a lead wire guided from the superconducting wire and a superconducting wire for a wiring line.

    摘要翻译： 公开了一种具有高温裕度并且是热稳定的并且可靠地执行超导状态和正常导通状态之间的开关操作的永久电流开关。 本发明的永久电流开关具有线圈超导线和在超导状态和正常导通状态之间切换超导线的加热线，超导线是在外部具有高电阻金属的二硼化硼超导线 侧面和二硼化镁超导部分，并且通过在高电阻金属和二硼化硼超导部分之间的层上形成超导金属而制备，并且所述永久电流开关还包括超导连接部分，其超导连接到引线 从超导线引导的线和用于布线的超导线。

    Metal sheath magnesium diboride superconducting wire and its manufacturing method
    5.
    发明授权
    Metal sheath magnesium diboride superconducting wire and its manufacturing method 失效
    金属皮二硼化镁超导线及其制造方法

    公开(公告)号：US07569520B2

    公开(公告)日：2009-08-04

    申请号：US11346317

    申请日：2006-02-03

    申请人： Kazuhide Tanaka ,  Masaya Takahashi ,  Michiya Okada ,  Hiroaki Kumakura ,  Hitoshi Kitaguchi

    发明人： Kazuhide Tanaka ,  Masaya Takahashi ,  Michiya Okada ,  Hiroaki Kumakura ,  Hitoshi Kitaguchi

    IPC分类号： H01L39/24 ,  H01L39/14

    CPC分类号： H01L39/141 ,  H01L39/2487 ,  Y10S505/704

    摘要： In a metal sheath MgB2 superconducting wire, it is intended to achieve a wire having increased current density and a long length at the same time, by densitying superconducting core part. The superconducting wire is manufactured by forming diffusion hardened layer on the inner surface of the sheath such that the hardness of the inner surface becomes higher than that of the outer surface, filling MgB2 superconductor, and further if necessary, a critical current density increasing material such as indium, copper, and tin, in a metal sheath, to subject it to wire drawing. For the metal sheath, a material with toughness such as steel is used. Even if the sheath is made to a long wire, it does not break, thereby, enabling to density superconducting core part.

    摘要翻译： 在金属护套MgB2超导线中，通过密度超导芯部部分，旨在实现同时具有增加的电流密度和长的长度的导线。 超导线是通过在护套的内表面上形成扩散硬化层而制造的，使得内表面的硬度变得高于外表面的硬度，填充MgB 2超导体，并且如果需要，还需要临界电流密度增加材料 作为铟，铜和锡，在金属护套中进行拉丝。 对于金属护套，使用具有韧性的材料如钢。 即使鞘被制成长的线，也不会破裂，从而能够密集超导芯部。

    Superconductive wire and method for producing the same
    6.
    发明申请
    Superconductive wire and method for producing the same 审中-公开
    超导线及其制造方法

    公开(公告)号：US20080318794A1

    公开(公告)日：2008-12-25

    申请号：US12153483

    申请日：2008-05-20

    申请人： Masaya Takahashi ,  Kazuhide Tanaka ,  Michiya Okada

    发明人： Masaya Takahashi ,  Kazuhide Tanaka ,  Michiya Okada

    IPC分类号： H01B12/04 ,  H01L39/24

    CPC分类号： H01L39/141 ,  C04B35/58057 ,  C04B2235/401 ,  C04B2235/421 ,  C04B2235/6581 ,  C04B2235/94 ,  H01L39/2487 ,  Y10T29/49014

    摘要： A superconductive wire wherein the superconductive wire has a core portion containing magnesium diboride as the main component and a continuous metallic sheath firmly adhered to the core portion; the core portion is kept substantially vacuum; and the content of an inert gas such as an Ar gas contained in the core portion is in the range of 0.00002 to 10 ppm. Further, disclosed is a method for producing a superconductive wire, wherein the method comprises the steps of mixing powder of a source material constituting magnesium diboride to form a core portion of the superconductive wire in an inert gas, filling a pipe with the mixed material powder in vacuum environment, sealing the pipe with vacuum after filled with the material powder, forming magnesium diboride powder by heating the vacuum-sealed pipe (sheath), and forming the core portion by wiredrawing the pipe in the state where the magnesium diboride powder is sealed with vacuum, and the core portion firmly sticks to the wiredrawn metallic pipe. The core portion is kept vacuum, and the content of an inert gas contained in the core portion is in the range of 0.00002 to 10 ppm.

    摘要翻译： 一种超导线，其中超导线具有含有二硼化镁作为主要成分的核心部分，并且连续的金属护套牢固地粘附在芯部分上; 芯部保持基本上真空; 并且包含在芯部中的诸如Ar气体的惰性气体的含量在0.00002至10ppm的范围内。 此外，公开了一种超导线的制造方法，其特征在于，包括以下步骤：混合构成二硼化硼的源材料的粉末，在惰性气体中形成超导线的芯部，用混合材料粉末填充管 在真空环境中，填充材料粉末后真空密封管道，通过加热真空密封管（护套）形成二硼化镁粉末，并在二硼化镁粉末密封的状态下通过拉丝管形成芯部 并且芯部牢固地粘附在拉丝金属管上。 核心部分保持真空，并且包含在芯部中的惰性气体的含量在0.00002至10ppm的范围内。

    Superconducting circuit, production method of superconducting joints, superconducting magnet, and production method of superconducting magnet
    7.
    发明授权
    Superconducting circuit, production method of superconducting joints, superconducting magnet, and production method of superconducting magnet 有权
    超导电路，超导接头的制造方法，超导磁体以及超导磁体的制造方法

    公开(公告)号：US08513527B2

    公开(公告)日：2013-08-20

    申请号：US12845474

    申请日：2010-07-28

    申请人： Motomune Kodama ,  Michiya Okada ,  Masaya Takahashi

    发明人： Motomune Kodama ,  Michiya Okada ,  Masaya Takahashi

    IPC分类号： H01B12/10 ,  H01L39/02

    CPC分类号： H01L39/02 ,  H01F6/065 ,  Y10T428/12819

    摘要： A superconducting circuit including a superconducting joint that joints a niobium titanium superconducting wire having a structure where a filament made of niobium titanium alloy is arranged in a matrix made of copper or copper alloy and other superconducting wire, in which a volume ratio or a surface density of an α-Ti precipitation in the niobium titanium alloy of the filament in the superconducting joint is smaller than the volume ratio or the surface density of the α-Ti precipitation in the niobium titanium alloy of the filament in the niobium titanium superconducting wire in a portion other than the superconducting joint.

    摘要翻译： 包括超导接头的超导电路，其连接铌钛超导线，该铌钛超导线具有将由铌钛合金制成的长丝布置在由铜或铜合金制成的基体和其它超导线中，其中体积比或表面密度 在超导接头中的长丝的铌钛合金中的α-Ti析出小于铌钛超导线中的铌钛合金中的α-Ti析出物的体积比或表面密度 超导接头以外的部分。

    ANTENNA COIL FOR NMR PROBE AND WIRE ROD FOR SAME AND NMR SYSTEM
    10.
    发明申请
    ANTENNA COIL FOR NMR PROBE AND WIRE ROD FOR SAME AND NMR SYSTEM 审中-公开
    用于NMR探测器的天线线圈和用于相同和NMR系统的线缆

    公开(公告)号：US20080061778A1

    公开(公告)日：2008-03-13

    申请号：US11836882

    申请日：2007-08-10

    申请人： Masaya Takahashi ,  Kazuhide Tanaka ,  Kenji Kawasaki ,  Toshiyuki Shiino ,  Michiya Okada

    发明人： Masaya Takahashi ,  Kazuhide Tanaka ,  Kenji Kawasaki ,  Toshiyuki Shiino ,  Michiya Okada

    IPC分类号： G01V3/00 ,  H01F1/00

    CPC分类号： G01R33/34046 ,  G01R33/34007 ,  G01R33/34023 ,  G01R33/34053 ,  G01R33/34092 ,  G01R33/56536

    摘要： An antenna coil is formed by a wire rod obtained by combining and integrating two or more kinds of materials having different magnetisms. The wire rod has a circular or polygonal cross sectional shape. The two or more kinds of materials having different magnetisms are combined so that the magnetisms of the combined materials are set off. The wire rod is wound around a bobbin so as to have a solenoid shape. Desirably, the low-magnetic wire rod is placed in an atmosphere whose temperature has been reduced to 10° K or less or superconductive filaments are formed in the outermost layer. Preferably, a part of the superconductive filaments are exposed.

    摘要翻译： 天线线圈由通过组合和集成两种或更多种具有不同磁性的材料而得到的线材形成。 线材具有圆形或多边形横截面形状。 将具有不同磁性的两种或更多种材料组合，使得组合材料的磁性脱落。 线圈缠绕在线轴上以形成螺线管形状。 理想的是，将低磁性线材置于温度降至10°K以下的气氛中，或在最外层形成超导丝。 优选地，一部分超导细丝被暴露。