公开(公告)号：US20070266795A1

公开(公告)日：2007-11-22

申请号：US11747960

申请日：2007-05-14

申请人： Kazuhide Tanaka ,  Masaya Takahashi ,  Michiya Okada ,  Hideki Abe ,  Motoharu Imai

发明人： Kazuhide Tanaka ,  Masaya Takahashi ,  Michiya Okada ,  Hideki Abe ,  Motoharu Imai

IPC分类号： G01F1/56

CPC分类号： G01F23/246

摘要： An object is to provide a liquid level sensor device for liquefied gas enabling measurement on a liquid level of liquefied gas having a boiling point in the vicinity of 21 K, e.g. liquid hydrogen, accurately and with good reproducibility and enabling simple production with good reproducibility. The present invention is a liquid level sensor device for liquefied gas including compound containing magnesium and boron arranged in succession in the longitudinal direction over the entire or a part of surface of a linear conductor made of metal and a portion of the compound thereof dipped in liquid is in a superconductive state at liquid level measurement.

摘要翻译： 本发明的目的是提供一种用于液化气体的液面传感器装置，其能够测量沸点在21K附近的液化气体液面，例如液体。 液态氢，准确，重现性好，可重复性好，生产简单。 本发明是一种用于液化气体的液位传感器装置，其包括在由金属制成的直线导体的整个或一部分表面上沿纵向连续布置的含有镁和硼的化合物，并且其部分化合物浸入液体中 在液位测量时处于超导状态。

公开(公告)号：US08266958B2

公开(公告)日：2012-09-18

申请号：US11747960

申请日：2007-05-14

申请人： Kazuhide Tanaka ,  Masaya Takahashi ,  Michiya Okada ,  Hideki Abe ,  Motoharu Imai

发明人： Kazuhide Tanaka ,  Masaya Takahashi ,  Michiya Okada ,  Hideki Abe ,  Motoharu Imai

IPC分类号： G01F23/24

CPC分类号： G01F23/246

摘要： An object is to provide a liquid level sensor device for liquefied gas enabling measurement on a liquid level of liquefied gas having a boiling point in the vicinity of 21 K, e.g. liquid hydrogen, accurately and with good reproducibility and enabling simple production with good reproducibility. The present invention is a liquid level sensor device for liquefied gas including compound containing magnesium and boron arranged in succession in the longitudinal direction over the entire or a part of surface of a linear conductor made of metal and a portion of the compound thereof dipped in liquid is in a superconductive state at liquid level measurement.

摘要翻译： 本发明的目的是提供一种用于液化气体的液面传感器装置，其能够测量沸点在21K附近的液化气体液面，例如液体。 液态氢，准确，重现性好，可重复性好，生产简单。 本发明是一种用于液化气体的液位传感器装置，其包括在由金属制成的直线导体的整个或一部分表面上沿纵向连续布置的含有镁和硼的化合物，并且其部分化合物浸入液体中 在液位测量时处于超导状态。

公开(公告)号：US20070194870A1

公开(公告)日：2007-08-23

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： 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。

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。

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。

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。

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。

公开(公告)号：US20090176649A1

公开(公告)日：2009-07-09

申请号：US12399068

申请日：2009-03-06

申请人： Masaya Takahashi ,  Kazuhide Tanaka ,  Michiya Okada

发明人： Masaya Takahashi ,  Kazuhide Tanaka ,  Michiya Okada

IPC分类号： 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。

公开(公告)号：US20090170710A1

公开(公告)日：2009-07-02

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： H01B12/10 ,  H01B12/04 ,  H01L39/24

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。

公开(公告)号：US07152302B2

公开(公告)日：2006-12-26

申请号：US10387591

申请日：2003-03-14

申请人： Hiroshi Morita ,  Kazuhide Tanaka ,  Yasuo Suzuki ,  Michiya Okada

发明人： Hiroshi Morita ,  Kazuhide Tanaka ,  Yasuo Suzuki ,  Michiya Okada

IPC分类号： H01L39/24 ,  H01B12/00

CPC分类号： H01L39/02 ,  H01R4/68 ,  Y10T29/49014

摘要： A method of producing an electrical connection structure between at least two superconducting lines. The method comprises adding metal powder or alloy powder to a superconducting material comprising magnesium diboride, intervening the superconducting material between at least two superconducting lines, and heating said superconducting lines and said superconducting material to a temperature lower than the melting point of said superconducting material prior to the addition of said metal powder or alloy powder thereto, but higher than the melting point of said metal powder or alloy powder.

摘要翻译： 一种在至少两条超导线之间产生电连接结构的方法。 该方法包括将金属粉末或合金粉末添加到包含二硼化硼的超导材料中，将超导材料介于至少两条超导线之间，并将所述超导线和所述超导材料加热到低于所述超导材料的熔点的温度 涉及添加所述金属粉末或合金粉末，但高于所述金属粉末或合金粉末的熔点。