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21. 发明专利

JP2003037303A Superconducting coil with permanent current switch using magnesium diboride superconducting wire material and its manufacturing method 审中-公开
标题翻译：使用二氧化钛超导线材料及其制造方法的永磁电流开关超导线圈
公开(公告)号：JP2003037303A
公开(公告)日：2003-02-07
申请号：JP2001222398
申请日：2001-07-24
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MORITA YUTAKA , TANAKA KAZUHIDE , SUZUKI YASUO , OKADA MICHIYA
IPC分类号： H01L39/20 , H01F6/06 , H01L39/12
摘要： PROBLEM TO BE SOLVED: To provide a superconducting coil with a permanent current switch which has small connection resistance and high reliability. SOLUTION: The superconducting coil with the permanent current switch which has small connection resistance and high reliability is provided by using a magnesium diboride superconductor line which has high critical temperature, a large critical magnetic field, and a large critical current as the permanent current switch and short-circuiting the superconducting coil.
摘要翻译：要解决的问题：为了提供具有小的连接电阻和高可靠性的永磁电流开关的超导线圈。解决方案：通过使用具有高临界温度，大临界磁场和大临界电流的二硼化镁超导体线作为永久电流开关，提供具有小连接电阻和高可靠性的永磁电流开关的超导线圈，短路超导线圈。

22. 发明专利

JP2002284519A SUPERCONDUCTIVE MATERIAL 失效
公开(公告)号：JP2002284519A
公开(公告)日：2002-10-03
申请号：JP2001092490
申请日：2001-03-28
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： ADACHI HIDEAKI , HIRAMOTO MASAYOSHI , MATSUKAWA NOZOMI
IPC分类号： C01G1/00 , C01B35/04 , C30B29/10 , H01L39/02 , H01L39/12 , H01L39/24
摘要： PROBLEM TO BE SOLVED: To provide a super conductive material for improving a problem that MgB2 superconductive substance, a metal compound, is low in a superconducting volume fraction in a material because the substance is difficult to synthesize into a high-density material. SOLUTION: The superconductive material is represented by a formula (A1- XMX)(B1- YTY)2 (wherein, A is a kind of element or more selected from Group IIa; M is a kind of element or more belonging to Group Ib-VIIIb or lanthanides; B is boron; and T is a kind of element or more selected from C and N). The main component of the material is expressed by a composition formula AB2 (wherein, A is a kind of element or more selected from Group IIa; and B is boron). In a structure where a layer formed mainly of the element A and a layer formed mainly of B are alternately laminated, the former layer is composed of layers having at least two kinds of chemical compositions.

23. 发明专利

JP2002266045A INTERMETALLIC-COMPOUND SUPERCONDUCTOR CONSISTING OF MAGNESIUM AND BERYLLIUM, ALLOY SUPERCONDUCTOR CONTAINING THE INTERMETALLIC COMPOUND, AND METHOD FOR MANUFACTURING THEM 失效
公开(公告)号：JP2002266045A
公开(公告)日：2002-09-18
申请号：JP2001067663
申请日：2001-03-09
申请人： JAPAN SCIENCE & TECH CORP
发明人： AKIMITSU JUN , ZENITANI YUJI , MURANAKA TAKAHIRO , KADOMURA KAZUNOBU
IPC分类号： C22C1/05 , C01B35/04 , C04B35/645 , C22C1/04 , C22C23/00 , C22C25/00 , C22C28/00 , C22C30/00 , C30B29/02 , C30B29/52 , H01B13/00 , H01L39/12
摘要： PROBLEM TO BE SOLVED: To provide an intermetallic-compound superconductor and an alloy superconductor having high superconducting transition temperature, excellent malleability and ductility, and low normal conducting resistivity over the temperature region from superconducting transition temperature to room temperature, and also to provide a method for manufacturing these superconductors by which reproducibility can be improved and manufacturing cost can be reduced. SOLUTION: The quite new intermetallic-compound superconductor consisting of magnesium(Mg) and beryllium(Be) is represented by the formula Mg1 Be2 and has hexagonal AlB2 -type crystal structure and has 35 K superconducting transition temperature (Tc ). The alloy containing the intermetallic compound has excellent malleability and ductility and 35 K superconducting transition temperature (Tc ) and has low normal conducting resistivity over the temperature region from superconducting transition temperature to room temperature. These superconductors can be manufactured by mixing Mg-containing raw-material powder and Be-containing raw-material powder and subjecting the resultant powder mixture, e.g. to hot pressing.

24. 发明专利

JP2002193606A SUPERCONDUCTING MATERIAL AND METHOD OF MANUFACTURING IT 失效
公开(公告)号：JP2002193606A
公开(公告)日：2002-07-10
申请号：JP2000390715
申请日：2000-12-22
申请人： NEC CORP
发明人： MIYAMOTO YOSHIYUKI
IPC分类号： B82B1/00 , B82B3/00 , C01B31/02 , H01B13/00 , H01L39/12
摘要： PROBLEM TO BE SOLVED: To provide a superconducting material whose superconductive transition temperature is comparatively high and which is constituted of carbon-based fullerene molecules with high chemical stability, even though the transition temperature of the usual fullerene superconductor is low, about 40 K, and an oxide superconducting material whose superconductivity appears at liquid nitrogen temperature has a low chemical stability. SOLUTION: C20 fullerene, whose interaction of electron lattice is stronger than C60, is used and taken in the gaps of the materials whose bandgap between a valence electron band and a conduction band is big so as to be polymerized to one dimension chain. Afterwards, its phase changes to the superconductivity by pouring electrons or halls by the charged electric field. The superconduct material generated in this way has more excellent chemical stability than that of the oxide superconducting material and the superconducting material whose superconductive transition temperature is high and which has superior chemical stability can be obtained.

25. 发明专利

JP3249441B2 失效
公开(公告)号：JP3249441B2
公开(公告)日：2002-01-21
申请号：JP22626197
申请日：1997-08-22
IPC分类号： C01G1/00 , C01G29/00 , C04B35/00 , C04B35/45 , C04B35/653 , H01B12/00 , H01B13/00 , H01L39/12 , H01L39/24

26. 发明专利

JP3205646B2 失效
公开(公告)号：JP3205646B2
公开(公告)日：2001-09-04
申请号：JP16226493
申请日：1993-06-30
IPC分类号： C30B15/02 , C30B29/22 , H01L39/12

27. 发明专利

JP2001233605A SUPERCONDUCTIVE OXIDE AND SUPERCONDUCTIVE OXIDE/METAL COMPOSITE MATERIAL 失效
公开(公告)号：JP2001233605A
公开(公告)日：2001-08-28
申请号：JP2000313278
申请日：2000-10-13
申请人： MASSACHUSETTS INST TECHNOLOGY
发明人： YUREK GREGORY J , VANDERSANDE JOHN B
IPC分类号： C01B13/32 , C01G1/00 , C01G3/00 , C04B35/45 , C04B35/64 , C04B35/65 , C04B35/653 , C23C16/40 , H01B12/00 , H01B12/04 , H01B12/06 , H01B13/00 , H01L39/12 , H01L39/24
摘要： PROBLEM TO BE SOLVED: To provide a superconductive oxide in such a form as to put superconductive properties to practical use. SOLUTION: The subject superconductive oxide/metal composite material is such that a continuous superconductive oxide phase is entirely intermingled with a noble metal phase; one embodiment thereof is such that a superconductive oxide phase is entirely intermingled with a noble metal phase so as to effect that the noble metal phase comprising alloy of Ag, Au, Pd and/or Pt is finely dispersed in the continuous superconductive oxide phase, and the final composite material thus obtained has improved mechanical strength and toughness, being in the form of a formed product consisting of linear material, ribbon, sheet, rod or ring, except coated product and thin film.

28. 发明专利

JP3160028B2 失效
公开(公告)号：JP3160028B2
公开(公告)日：2001-04-23
申请号：JP26824691
申请日：1991-09-18
IPC分类号： C01G1/00 , C01G29/00 , C04B35/00 , C04B35/45 , C04B35/653 , C30B29/62 , H01B12/02 , H01B13/00 , H01L39/12

29. 发明专利

JP2001505178A 失效
公开(公告)号：JP2001505178A
公开(公告)日：2001-04-17
申请号：JP52401498
申请日：1997-11-17
IPC分类号： C01G1/00 , C01G3/00 , C04B35/45 , H01B1/08 , H01L39/12

30. 发明专利

JP2000299506A METAL ULTRATHIN FILM SUPERCONDUCTOR AND MICRODISPLACEMENT MEASURING DEVICE USING MAGNETIC FIELD 失效
公开(公告)号：JP2000299506A
公开(公告)日：2000-10-24
申请号：JP14217199
申请日：1999-04-14
申请人： HINO TARO , HINO MARISHI
发明人： HINO TARO
IPC分类号： H01L39/02 , C23C14/34 , G01B11/14 , H01B13/00 , H01F1/00 , H01F6/00 , H01L39/12
摘要： PROBLEM TO BE SOLVED: To raise a transition temperature up to room temperatures using a metal or metal-state ultrathin film as a superconductivity is generated in the direction of the film surface of the ultrathin film in a structure of a dielectric body/the metal or metallic ultrathin film/a dielectric body, but in this case, the thinnner the film is, the higher this transition temperature to become the superconductivity transition temperature rises. SOLUTION: A superconductivity transition temperature has hitherto been 120K or thereabouts, but the superconductivity transition temperature of a metal or metal-state ultrathin film of a thickness thinner than one micron meter (μm) is heightened until room temperatures (23 to 25 deg.C, roughly 300K) in this method. The generation of a Meissner effect is ascertained in addition to a quenching of an electrical resistance and a room temperature superconductivity has already been verified. Moreover, in order to measure the Meissner effect, a device for measuring a microdisplacement in a magnetic field using a laser displacement meter is manufactured. The quenching of the electrical resistance and the generation of the Meissner effect show the fact that the above ultrathin film is turned into a superconductor.

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