公开(公告)号：US5757257A

公开(公告)日：1998-05-26

申请号：US309415

申请日：1994-09-20

Applicant: Toshiya Doi ,  Takesi Ozawa ,  Katsuzo Aihara ,  Tomoichi Kamo ,  Kazuhisa Mori ,  Nobuhiro Hara

Inventor： Toshiya Doi ,  Takesi Ozawa ,  Katsuzo Aihara ,  Tomoichi Kamo ,  Kazuhisa Mori ,  Nobuhiro Hara

IPC: H01F6/00 ,  H01L39/20 ,  H01F1/00

CPC classification number: H01F6/008 ,  H01L39/20

Abstract: Superconducting magnet system using a liquid helium for its operation and a permanent current switch and a system thereof applied to the superconducting magnet system employing a permanent current loop created by a superconducting material developing superconductivity when cooled. The system includes a superconducting magnet dipped in the liquid helium, the permanent current switch for driving or interrupting the superconducting magnet, and a cryostat for accommodating the superconducting magnet and the permanent current switch, and the permanent current switch is arranged over a liquid surface of the liquid helium.

Abstract translation: 使用液氦作为其操作的超导磁体系统和永久电流开关及其系统应用于超导磁体系统，该超导磁体采用由冷却时产生超导材料的超导材料产生的永久电流回路。 该系统包括浸在液氦中的超导磁体，用于驱动或中断超导磁体的永久电流开关，以及用于容纳超导磁体和永久电流开关的低温恒温器，并且永磁电流开关设置在 液氦。

公开(公告)号：US06316391B1

公开(公告)日：2001-11-13

申请号：US09536043

申请日：2000-03-27

Applicant: Toshiya Doi ,  Takesi Ozawa ,  Toyotaka Yuasa ,  Kazutoshi Higashiyama

Inventor： Toshiya Doi ,  Takesi Ozawa ,  Toyotaka Yuasa ,  Kazutoshi Higashiyama

IPC: H01B1200

CPC classification number: H01L39/2454 ,  H01F6/06 ,  H01L39/143

Abstract: The present invention provides superconductors capable of being used at temperatures to which the superconductor can be cooled in liquid nitrogen and of carrying current in a high critical current density in a magnetic field, and superconducting apparatuses employing the superconductors and more advantageous in costs than the conventional superconducting apparatuses. A superconducting wire is formed by combining a metallic body of a cubic aggregate structure and an oxide superconducting substance. The present invention provides superconductors, superconducting wires, superconducting magnets and applied superconducting apparatuses having a high superconducting critical current density. The applied super conducting apparatuses employing the superconductors or the superconducting wires in accordance with the present invention are able to operate when cooled in liquid nitrogen-and can be manufactured at costs lower than those of the conventional superconducting apparatuses.

Abstract translation: 本发明提供了能够在超导体可以在液氮中冷却并在磁场中以高临界电流密度承载电流的温度下使用的超导体，以及使用超导体的超导装置，并且比常规的成本更有利 超导装置。 通过组合立方体聚集体结构的金属体和氧化物超导物质来形成超导线。 本发明提供具有高超导临界电流密度的超导体，超导线，超导磁体和应用的超导装置。 使用根据本发明的超导体或超导线的应用的超导传导装置能够在液氮中冷却时操作，并且可以以比常规超导装置的成本低的成本制造。

公开(公告)号：US5545610A

公开(公告)日：1996-08-13

申请号：US115056

申请日：1993-09-02

Applicant: Kazutoshi Higashiyama ,  Toshiya Doi ,  Takesi Ozawa ,  Seizi Takeuchi ,  Tomoichi Kamo ,  Shinpei Matsuda ,  Yutaka Yoshida

Inventor： Kazutoshi Higashiyama ,  Toshiya Doi ,  Takesi Ozawa ,  Seizi Takeuchi ,  Tomoichi Kamo ,  Shinpei Matsuda ,  Yutaka Yoshida

IPC: C01G1/00 ,  C01G21/00 ,  H01B12/06 ,  H01L39/24 ,  B32B9/00 ,  H01B12/00 ,  H01L39/12

CPC classification number: H01L39/248 ,  Y10S428/93 ,  Y10S505/704 ,  Y10S505/733 ,  Y10S505/74 ,  Y10S505/783

Abstract: An oxide-based superconductor ccmprising Tl, Pb, Sr, Ca and Cu or Tl, Pb, Ba, Sr, Ca and Cu, prepared by subjecting a low melting point composition comprising the superconductor-constituting elements and a solid composition comprising the superconductor-constituting elements, prepared in advance, to reaction under melting conditions for the low melting point composition, has distinguished current pass characteristics in a high magnetic field due to improvement of electric contact among grains through reduction of non-superconductor phase, increase in crystal grain sizes (reduction of crystal boundaries), orientation of crystal and cleaning of crystal boundaries.

Abstract translation: 通过对包含超导体构成元素的低熔点组合物和包含超导体构成元素的固体组合物进行处理而制备的通过对包含超导体构成元素的低熔点组合物进行制备的Tl，Pb，Sr，Ca和Cu或Tl，Pb，Ba，Sr，Ca和Cu的氧化物基超导体， 预先制备的用于低熔点组合物的熔融条件下的反应的组成元素由于非超导体相的还原而改善晶粒之间的电接触而导致高磁场中的电流通过特性，晶粒尺寸的增加 （晶体边界的减少），晶体取向和晶界的清洗。