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1. 发明专利

JPS5898991A SUPERCONDUCTIVE DEVICE 失效
公开(公告)号：JPS5898991A
公开(公告)日：1983-06-13
申请号：JP19676181
申请日：1981-12-09
申请人： JAPAN NATIONAL RAILWAY , HITACHI LTD
发明人： HEKI TOSHIKI , SHIRAKU YOSHINORI , OGATA HISANAO , FUJINAGA TAKAMASA
IPC分类号： H01F6/00 , H01R4/68
摘要： PURPOSE:To reduce the invasion of heat due to conduction of a current conductor of ambient temperature side and a superconductive conductor of low temperature side during energization and non-energization by connecting the conductors via a connecting conductors having a plurality of coolant passages of small sectional area. CONSTITUTION:Cryogenic coolant is stored in an interior container 24, and a vacuum is formed in the space between the container 24 and an exterior container 25. Superconductive device is contained in the cryogenic coolant, and the device is connected via a current conductor to an external power source. The conductor 27 of ambient side is divided into a conductor 28b having small thermal conductivity and a superconductor 28 of low temperature side integral with the superconductor 28a, and the conductors 27, 28 are connected via a connecting conductor 29 having a plurality of coolant passages of small sectional area. The conductor 29 has a plurality of coolant passages having, for example, 1-5mm.phi, thereby inproving the efficiency of thermal exchange.

2. 发明专利

JPS5898992A SUPERCONDUCTIVE DEVICE 失效
公开(公告)号：JPS5898992A
公开(公告)日：1983-06-13
申请号：JP19676281
申请日：1981-12-09
申请人： JAPAN NATIONAL RAILWAY , HITACHI LTD
发明人： HEKI TOSHIKI , SHIRAKU YOSHINORI , OGATA HISANAO
IPC分类号： H01F6/04 , H01F6/00 , H01L39/04 , H01R4/68
摘要： PURPOSE:To reduce the invasion of heat due to conduction of a current conductor at the ambient temperature side and a superconductive of low temperature side during energization and non-energization by connecting the conductors with a connecting conductor having coolant passages having heat transfer accelerating member. CONSTITUTION:Cryogenic coolant is stored in an interior container 24, and a vacuum is formed in the space between the container 24 and an exterior container 25. A superconductive device is contained in the coolant, and the device and an external power source are connected via a current conductor. This currnet conductor is composed of the conductor 27 of ambient temperature side and a conductor 28b having small thermal conductivity integral with a superconductor 28a, and the conductors 27, 28 are connected via a connecting conductor 27 formed to having a coolant passage with heat transfer accelerating material. Further, the coolant is fed from an inlet tube 37, and is exhausted from an exhaust tube 38.

3. 发明专利

JPS6366043B2 失效
公开(公告)号：JPS6366043B2
公开(公告)日：1988-12-19
申请号：JP6537183
申请日：1983-04-15
申请人： HITACHI LTD
发明人： OGATA HISANAO , NEMOTO TAKEO , SHIRAKU YOSHINORI , YAGI YASUOMI
IPC分类号： H01F6/00 , F17C3/08 , F17C13/08 , H01L39/04

4. 发明专利

JPS6356435B2 失效
公开(公告)号：JPS6356435B2
公开(公告)日：1988-11-08
申请号：JP7290683
申请日：1983-04-27
申请人： HITACHI LTD
发明人： YOSHIKAWA SEIICHI , OGATA HISANAO , SHIRAKU YOSHINORI , MASE MASAHIRO , TSUMAKI NOBUO , AWATA YOSHIHISA , KAJIWARA HIROTAKE
IPC分类号： F04D7/02

5. 发明专利

JPS63261763A SUPERCONDUCTING MAGNETIC SHIELD 失效
公开(公告)号：JPS63261763A
公开(公告)日：1988-10-28
申请号：JP9541287
申请日：1987-04-20
申请人： HITACHI LTD
发明人： ISHIKAWA YUICHI , SHIRAKU YOSHINORI , OGATA HISANAO , NAKAMURA YOZO
IPC分类号： H05K9/00 , H01L39/00
摘要： PURPOSE:To easily provide a complicated space of a large capacity and low residual magnetism shielded from the external magnetic field at a temperature not exceeding the critical temperature of superconduction, by a method wherein a compound body is formed by laminating the surface of high temperature superconductive fine powder layer with plastics. CONSTITUTION:A superconductor magnetism shield is composed of at least one layer of compound body comprising high temperature super conductive fine powder layer 2 formed into a sheet or tape laminated with plastics 3 or rubber. A recommended material for the high temperature superconductive material powder is a compound in the perovskite type crystal structure containing copper and oxygen. Furthermore, it is recommended that the surface, rear and both sides of this compound body are laminated with a metallic foil while permalloy of high permeability and aluminium or copper of high conductivity are optimum for the metallic foil to be laminated. The high temperature superconductive fine powder can shield the external magnetic field by the Meissner effect of superconductor. Thus, more intensive magnetic field can be shielded by laminating the compound body layers repeatedly.

6. 发明专利

JPS63260818A OXIDE SUPERCONDUCTING MATERIAL AND PRODUCTION THEREOF 失效
公开(公告)号：JPS63260818A
公开(公告)日：1988-10-27
申请号：JP9310287
申请日：1987-04-17
申请人： OGUSHI TETSUYA , HITACHI LTD
发明人： OGUSHI TETSUYA , SHIRAKU YOSHINORI
IPC分类号： C01G1/00 , C01G3/00 , C04B35/00 , C04B35/45 , H01B12/00 , H01B13/00 , H01L39/12 , H01L39/24
摘要： PURPOSE:To readily obtain an oxide superconducting material, having high superconducting temperature and useful in the field of utilizing superconducting technology, by thermally reacting specific mixed powder at a high temperature in a vacuum or oxidizing atmosphere and sintering the resultant reaction product. CONSTITUTION:A (pure) powder of one or more L element oxides selected from group Va elements, such as V, Nb or Ta, of the periodic table of elements or group IVa elements, such as Ti, Zr or Hf, of the periodic table of elements is blended with a powder of one or more A element carbonates selected from alkaline earth elements, such as Ba, Sr or Ca, and copper element oxide or pure metallic powder thereof at a desired blending ratio to provide a blended powder, which is then thermally reacted at a high temperature in a vacuum, etc., and sintered to afford the aimed oxide superconducting material, consisting of a perovskite-like crystal structure expressed by the formula (x is 0

7. 发明专利

JPS63260007A SUPERCONDUCTING EQUIPMENT 失效
公开(公告)号：JPS63260007A
公开(公告)日：1988-10-27
申请号：JP9305687
申请日：1987-04-17
申请人： HITACHI LTD
发明人： NEMOTO TAKEO , OGATA HISANAO , SHIRAKU YOSHINORI , MORI HIDEAKI
IPC分类号： H01L39/04 , F17C3/08 , H01F6/00
摘要： PURPOSE:To enable a vacuum container to maintain heat insulating performance in satisfactory conditions by a method wherein a freezer with a 1st stage and a 2nd stage whose freezing temperatures are different from each other is employed and the 1st stage is utilized for cooling a superconducting magnet and the 2nd stage is utilized as a cryopump. CONSTITUTION:A 1st stage 13 and a 2nd stage 14 are cooled by driving a freezer 4. The 2nd stage 14 of the freezer 4 is a cooling source used for a cryopump and the heat of the 2nd stage 14 is transmitted from a casing 15 to a cryopanel 10 with a high efficiency at a low thermal temperature by gas 16 and a contactor 17. Therefore, as the temperature of the cryopanel 10 is maintained at 10-20K, gases emitted in a vacuum container 19, especially carbon monoxide, nitrogen, oxygen, hydrogen, helium and so forth which are not adsorbed at the temperature level of 80K, are adsorbed by the cryopanel 10 so that the vacuum inside the vacuum container can be maintained in satisfactory conditions. Therefore, a superconducting equipment with a high heat insulating performance can be provided in the vacuum container 19.

8. 发明专利

JPS63228696A ELECTRONIC DEVICE 失效
公开(公告)号：JPS63228696A
公开(公告)日：1988-09-22
申请号：JP6091787
申请日：1987-03-18
申请人： HITACHI LTD
发明人： OGATA HISANAO , SHIRAKU YOSHINORI , AOKI MASAAKI
IPC分类号： H01L39/02 , H01L23/12 , H05K3/46
摘要： PURPOSE:To obtain high-speed without fining line width by adopting a superconductor for a multilayer interconnection substrate carrying an element. CONSTITUTION:A chip 1 consisting of an IC is connected with a wiring 4a on a substrate 3 with solder 2. The substrate 3 is multilayered as 3a-3c and wirings 4a-4c are formed on each layer being mutually connected. The substrate 3 is made of ceramics being sintered in piles of 5-scores of layers. The wirings 4a-4c are oxide superconductors being ceramics wherein at least not less than two elements from among lanthanum, barium, strontium or the like in addition to copper and oxygen are compound and sintered. Further, a superconductor can be also used for a wiring inside a chip 1. Thereby, so far as being operated at not more than a superconductor transition temperature, electric resistance is zero so as to simplify high-speed even when a wiring is lengthened. Accordingly, fining of wiring is not required.

9. 发明专利

JPS61276276A SUPERFLUID HELIUM GENERATOR 失效
公开(公告)号：JPS61276276A
公开(公告)日：1986-12-06
申请号：JP11640585
申请日：1985-05-31
申请人： HITACHI LTD
发明人： SHIRAKU YOSHINORI , OGATA HISANAO
IPC分类号： H01L39/04
摘要： PURPOSE:To supply an inlet on the high pressure side of a heat exchanger stably with normal fluid helium at a value close to 4K, and to form superfluid helium stably with high efficiency by positioning a boundary surface between normal fluid helium and superfluid helium on its midway of a path communicating an upper chamber and a lower chamber. CONSTITUTION:Normal fluid helium (1atm, 4.2K) 2 in an upper chamber 1 is introduced to the high pressure side of a heat exchanger 14, and JT-expanded by a JT valve 16, a temperature thereof is lowered to a lambda point temperature or less, the temperature of superfluid helium is obtained, and the normal fluid helium is heat-exchanged with liquid helium in a lower chamber 6 by a heat exchanger 17, and brought to the lambdapoint temperature or less, thus forming superfluid helium 7 (approximately 1.8K, 1atm). Saturated superfluid helium passing through the heat exchanger 17 is evaporated, enters a low-pressure side line 18, and is introduced to an exhaust pipe 19 while cooling liquid helium 2 passing through a filter 13 to a temperature close to the lambda point temperature by sensible heat. A boundary surface between normal fluid helium and superfluid helium is set into a path 8 connecting the upper chamber 1 and the lower chamber 6, and the temperature of a connecting section with the upper section of the path is set by a heater so as to reach 4-4.2K.

10. 发明专利

JPS61265464A MAGNETIC REFRIGERATOR 失效
公开(公告)号：JPS61265464A
公开(公告)日：1986-11-25
申请号：JP10580185
申请日：1985-05-20
申请人： HITACHI LTD
发明人： SHIRAKU YOSHINORI , OGATA HISANAO
IPC分类号： F25B21/00

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