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公开(公告)号：JPH01162310A
公开(公告)日：1989-06-26
申请号：JP32171087
申请日：1987-12-19
Applicant: TOSHIBA CORP
Inventor： TANAKA MINORU
Abstract: PURPOSE:To obtain the title oxide superconducting power lead wire having high critical current density by a method wherein oxide superconducting powder is filled in a metal tube, the powder is calcined, the oxide superconducting material on the part where a metal film was removed is brought into the state of high density, and the quantity of generation of Joule heat is reduced. CONSTITUTION:Oxide superconducting powder is filled in a metal tube having low electric resistance and excellent oxidation-resistant property, and after an area-reducing processing has been conducted, the powder is calcinated. After the calcinating operation has been conducted, the metal film is removed excluding the part which is used as a terminal. Subsequently, the oxide superconducting material on the metal film removed part is brought into the state of high density. The metal having low electric resistance and excellent oxidation-resistant property is silver. The oxide superconducting material is a perovskite type oxide superconducting substance containing a rare-earth element. As a result, the generating amount of Joule heat can be reduced, and the oxide superconducting power lead wire having high critical current density can be obtained.
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公开(公告)号：JPS6489476A
公开(公告)日：1989-04-03
申请号：JP24608787
申请日：1987-09-30
Applicant: TOSHIBA CORP
Inventor： TANAKA MINORU , MURASE AKIRA , TAKANO ICHIRO
Abstract: PURPOSE:To be small-sized and highly efficient for heightening reliability by using an oxide ceramics superconductor as the superconductor of a superconductive permanent current switch and burying this and a heater in ceramics base metal. CONSTITUTION:An oxide ceramics superconductive wire 1 is made of perovskite type oxide ceramics containing rare earth elements, for instance, constituting YBaCuO system oxide ceramics, and this is laser-processed to make a supercouductive wire rod. A ceramic base material 3 shall be an oxide ceramics of the same system with the superconductive wire 1. At the time of pressure firing of this ceramics base material 3, the oxide ceramics superconductive wire 1 and a heater wire 2 are simultaneously buried therein en bloc. Thereby, the superconductive wire 1 and the heater wire 2 are strongly made en bloc with good acclimation, and especially, even when they are cooled under the superconductive transition temperature, no thermal strain is generated so as to heighten reliability.
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公开(公告)号：JPS61194405A
公开(公告)日：1986-08-28
申请号：JP3443985
申请日：1985-02-25
Applicant: TOSHIBA CORP
Inventor： FUKUSHIMA EIJI , TANAKA MINORU
Abstract: PURPOSE:To prevent a breakage by sticking a strain gauge on an image guide or a light guide where they are bent and generating an alarm signal when they are bent to less than a specific radius. CONSTITUTION:A strain gauge 9 is stuck on the image guide or light guide where it is bent, and the alarm signal 11 of sound or light is generated through a signal system 10 when the guide is bent to less than the specific radius. Consequently, the image guide or light guide is prevented from being broken.
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公开(公告)号：JPS6132024A
公开(公告)日：1986-02-14
申请号：JP15200684
申请日：1984-07-24
Applicant: Toshiba Corp
Inventor： FUKUSHIMA EIJI , TANAKA MINORU
Abstract: PURPOSE: To enable to observe images at separated position in juxtaposition easily in the state of very low temperature by juxtaposing glass fiber in an image guide in the same face plate.
CONSTITUTION: The state of two faces of a test specimen 3 in liquid helium 2 of a cryostat 1 is observed by objective lens systems 4, 4'. The image is taken out by image guides 5, 5' and composed by a guide 6, and observed by an ocular system 17 and a video camera 8. Thus, two faces of the specimen 3 can be observed easily and simultaneously comparing change with time in the state of very low temperature composing two picture element systems of the glass fiber.
COPYRIGHT: (C)1986,JPO&JapioAbstract translation: 目的：通过在同一面板中的图像引导件中并列玻璃纤维，能够在非常低的温度下容易地在并列位置观察分离位置的图像。 构成：由物镜4,4'观察低温恒温器1的液氦2中的试样3的两个面的状态。 图像由图像引导件5,5'取出并由引导件6组成，并由目镜系统17和摄像机8观察。因此，可以容易地观察到样本3的两个面，同时将变化与时间进行比较 在构成玻璃纤维的两个像素系统的非常低的温度的状态下。
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公开(公告)号：JPS54146592A
公开(公告)日：1979-11-15
申请号：JP5466078
申请日：1978-05-09
Applicant: Toshiba Corp
Inventor： MATSUDA MASAHARU , TANAKA MINORU
IPC: H01F6/00
Abstract: PURPOSE:To ensure an effective excitation for the large-current superconductive coil by giving an alternate conduction and heating to the heaters which are provided to plural number of superconductive wires featuring the high critical magnetic field and large critical current and then enclosing the magnetic fields sequentially to secure the pumping function. CONSTITUTION:When conduction and heating is applied to heater 14 with the normal conduction given to superconductive wire 11, the magnetic field is led to superconductive circuit A formed with superconductive wires 11 and 12. With discontinuation of conduction for heater 14, wire 11 is turned superconductive again and the magnetic field is enclosed into circuit A. Thus, the current corresponding to the magnetic flux amount of the magnetic field enclosed flows to circuit A. Then when the conduction and heating is given to heater 15 with the normal conduction secured to wire 12, the current of circuit A flows to superconductive circuit B containing superconductive coil 13. With conduction stopped to heater 15, wire 12 is turned conductive again and the current flows to the superconductive circuit comprising wires 11 and 12 plus coil 13. Thus, coil 13 is excited. In this way, the pumping function is obtained by applying he conduction and heating to heaters 14 and 15 and enclosing the magnetic fields in sequnce, thus obtaining the fixed excitation at coil 13.
Abstract translation: 目的：为了确保对大电流超导线圈的有效激励，给予提供给具有高临界磁场和大临界电流的多个超导线的加热器的交替传导和加热，然后依次包围磁场 以确保泵送功能。 构成：当对加热器14进行导通和加热时，对导体11施加正常导通，磁场被引导到由超导导线11和12形成的超导电路A.随着加热器14的导通停止，导线11转动 再次导通并且磁场被包围到电路A中。因此，与封闭磁场的磁通量相对应的电流流向电路A.然后当导通和加热被给予加热器15，其中正常导通固定到电线 如图12所示，电路A的电流流向包含超导线圈13的超导电路B.由于导通停止到加热器15，导线12再次导通，并且电流流向包括导线11和12加上线圈13的超导电路。因此，线圈 13兴奋 以这种方式，通过将其传导和加热施加到加热器14和15并将其包围在磁场中来获得泵送功能，从而在线圈13获得固定的激励。
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Patent Agency Ranking
公开(公告)号：JPH07142244A
公开(公告)日：1995-06-02
申请号：JP28662493
申请日：1993-11-16
Applicant: TOSHIBA CORP
Inventor： NOMURA SHIYUNJI , YAMADA MINORU , ONODA HIROKO , TANAKA MINORU
IPC: H01F6/06
Abstract: PURPOSE:To obtain a flat superconducting coil which reduces an AC loss and which can take an arbitrary shape or deformation by a method wherein a flat boardlike superconducting coil is formed to be a spiral shape or a whirlpool shape and individual adjacent superconductor layers are isolated from each other via space parts. CONSTITUTION:A superconductor layer 2 is applied and formed integrally on at least one main face of a flexible metal support body 1. A carbon-dioxe-gas- laser machining operation is executed to the formed oxide superconductor layer 2 and to the flexible metal support body 1 which supports it, the oxide superconductor layer 2 and the flexible metal support body 1 which supports it are cut off and removed selectively and partly, and a whirlpool-shaped (or spiral- shaped) flat boardlike superconducting coil is formed. The flat boardlike superconducting coil is constituted to be a spiral shape or a whirlpool shape, individual adjacent superconductor layers are isolated from each other via space parts, an AC loss due to a coupling current or an eddy current is reduced and prevented effectively, and the coil functions as a superconducting coil of high reliability.
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公开(公告)号：JPH04115436A
公开(公告)日：1992-04-16
申请号：JP23281990
申请日：1990-09-03
Applicant: TOSHIBA CORP
Inventor： TANAKA MINORU , TANIMOTO HIROSHI
Abstract: PURPOSE:To improve the reliability of a switch circuit by providing a switch element in a floating circuit system of a switchboard or the like with a variable impedance circuit and a feeder circuit. CONSTITUTION:A switch element 1 which has a control terminal is provided between a first terminal T1 and a second terminal T2 in a floating circuit system. A feeder circuit 2 which selectively supplies a DC drive voltage is also provided. A variable impedance circuit 3 is provided between the control terminal of the switch element 1 and the first terminal T1 or the second terminal T2. In addition, an impedance control circuit 4 which controls the variable impedance circuit 3 in accordance with the state of the switch element 1 either conducting or non-conducting. Then, the impedance between the control terminal and the first terminal T1 or the second terminal T2 is variably controlled in synchronization with the ON/OFF operation of the switch element l. Thus, an operation error to be caused by external interferences can be prevented to secure stable operation.
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公开(公告)号：JPH0433272A
公开(公告)日：1992-02-04
申请号：JP13722090
申请日：1990-05-29
Applicant: TOSHIBA CORP
Inventor： SHIBUYA SUMIICHI , SUZUKI MINORU , URATA MASAMI , MAEDA HIDEAKI , MURASE AKIRA , TANAKA MINORU
Abstract: PURPOSE:To feed a large critical current to a connection section by twisting tube-shaped Nb filaments of superconducting wires for connection, then heat- treating the Nb filaments to form Nb3Sn wires. CONSTITUTION:End sections of two superconducting wires manufactured by the tubing method are dipped in a nitric acid solution to dissolve a matrix material 1, and the end sections of the tubular Nb filaments 2 are exposed from the matrix material 1. Two superconducting wires to be connected are arranged in parallel or in series, and filaments 2 exposed from the matrix material 1 are twisted. The twisted portions are connected by the solid phase diffusion connecting method or the ultrasonic connecting method to connect two superconducting wires. The twisted portions of the filaments 2 are covered with the matrix material 1 or a Cu tube 13, it is heated in a vacuum heating furnace, then the filaments 2 and Sn filaments 4 assembled inside are reacted together, and Nb3Sn wires 6 are formed. Two superconducting wires are connected with low resistance, and a large critical current can be fed to a connection section.
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公开(公告)号：JPH02213910A
公开(公告)日：1990-08-27
申请号：JP3536989
申请日：1989-02-15
Applicant: TOSHIBA CORP
Inventor： TANAKA MINORU
Abstract: PURPOSE:To increase the freedom degree for designating of a circuit without complicating the circuit constitution by discriminating the temperature gradient direction based on the polarity and its level value of the unbalanced voltage of a bridge circuit consisting of a heat detection means having a temperature coefficient and controlling a heat source set in the lower temperature direction for compensation of the temperature gradient. CONSTITUTION:In case the heat generating source of a circuit set in an area 1 having its temperature to be controlled is included in a part shown by a broken line, each detected resistance has its highest level at Ra near the heat generating source owing to the temperature difference caused by a temperature gradient. Meanwhile the temperature of other detected resistances are not increased so much and therefore the resistance values of them are not increased. Thus the balance conditions of a bridge circuit are lost and the unbalanced voltage is produced at the input of a detecting circuit 3 so that the plus polarity is secured at a joint (b). The circuit 3 send the polarity and the level value as necessary of the unbalanced voltage to a control circuit 4. The circuit 4 judges to increase the temperature of a heat source H3 for elimination of the temperature slope owing to the plus polarity of the joint (b). Then the circuit 4 controls the output side so as to supply a current to the source H3. Thus a complicated temperature compensating circuit is not required and the circuit designing variation is improved.
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公开(公告)号：JPS63271614A
公开(公告)日：1988-11-09
申请号：JP10711687
申请日：1987-04-30
Applicant: TOSHIBA CORP
Inventor： TANAKA MINORU , KUNUGI MASAHIKO , SHINOHARA JUNICHI
Abstract: PURPOSE:To make a decision intelligently at a high speed corresponding to an accident by distributing processing contents to a procedure type system and a knowledge base system according to the contents of the occurring accident. CONSTITUTION:This monitor and control equipment consists of an electric power system 1 to be monitored, transmission and reception stations 2 and 3, an electronic computer 4, and a CRT display device 5. Then the electronic computer 4 consists of a data base 41 stored with electric power system facility data including observation information, a system state decision system 42, the knowledge base system 43 which makes inference to derive its result, and the procedure type system 44. Then state data is inputted to a discrimination system 42, which performs distribution processing according to a specific reference; when it is judged that the state data indicates, for example, a simple accident, the procedure type system 44 performs fast processing, but when a complicate accident is judged, the knowledge base system 43 performs intelligent processing with is slow.
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