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11. 发明专利

JPH0155426B2 失效
公开(公告)号：JPH0155426B2
公开(公告)日：1989-11-24
申请号：JP1861581
申请日：1981-02-10
申请人： MITSUBISHI ELECTRIC CORP
发明人： SUGA TOSHIRO , MATSUMOTO ITSURO , MATSUDA SETSUYUKI , WATANABE TSUGIO , YAMADA NAOYA
IPC分类号： G01R31/12

12. 发明专利

JPS63281410A ELECTROMAGNET WITH MAGNETIC SHIELD 失效
公开(公告)号：JPS63281410A
公开(公告)日：1988-11-17
申请号：JP11484687
申请日：1987-05-13
申请人： MITSUBISHI ELECTRIC CORP
发明人： TAKECHI MORIAKI , WATANABE TSUGIO , KURODA SHIGENORI
IPC分类号： A61B5/055 , G01R33/38 , G01R33/3875 , G01R33/421 , H01F7/20
摘要： PURPOSE:To make it possible to provide for a high shield effect, a less magnetic field gradient and reduction of the correction coil output by increasing the board thickness of the magnetic shield member within a argument of 90 deg. centering the dynamic diameter passing through the side hole as compared with other portion. CONSTITUTION:The end boards of a magnetic shield 3 comprises one end board 5a having a central opening 6 and a side hole 10, and the other end board 5b having a central opening 6. The end board 5a having the side hole 10 is provided with a thick-board portion 11 wherein the board thickness of a fan-shaped area of any opening angle within 180 deg. centering the side hole 10 is formed more thickly as compared with the other portion. In other words, the thick-board portion 11 is formed within a region of an argument of 90 deg., centering the dynamic diameter passing through the side hole 10. If the side hole 10 is provided in the portion of the end board 5a defined by Z>0 and y>0, it becomes magnetically asymmetrical relative to the original point o so that a magnetic field gradient occurs and the magnetic field uniformity degrades, but, if the board thickness of the end board 5a is increased, the increase of the magnetic reluctance is suppressed to suppress the generation of the magnetic field gradient, thereby improving the magnetic field uniformity.

13. 发明专利

JPS63166203A SUPERCONDUCTIVE MAGNET 失效
公开(公告)号：JPS63166203A
公开(公告)日：1988-07-09
申请号：JP31410286
申请日：1986-12-27
申请人： MITSUBISHI ELECTRIC CORP
发明人： TAKECHI MORIAKI , KURODA SHIGENORI , WATANABE TSUGIO
IPC分类号： G01R33/20 , A61B5/055 , A61B10/00 , H01F6/00
摘要： PURPOSE:To prevent magnetic characteristics of superconductive main coil being damaged, and improve them, by making axial centers of a superconductive main coil and an active shield coil coincide with each other, and making magnetic field generated at the axial center by the active shield coil itself intense and uniform. CONSTITUTION:A superconductive main coil 21 wound on a frame 22 is manufactured in the manner in which magnetic field of high and uniform intensity can be obtained in a necessary magnetic field space (vicinity of theta point) by the coil itself. An active shield coil 23 to reduce leakage magnetic field is wound with inverse polarity so as to generate the inverse magnetic field against the superconductive main coil 21, and constituted in a split coil form having an error component of zero which is comparable or more with the superconductive main coil 21. In the case of parallel excitation of the superconductive main coil and the active shield coil as well as series excitation of them, consideration for source voltage fluctuation and the like is unnecessary, because each coil has no error magnetic field.

14. 发明专利

JPS5852322B2 JPS5852322B2 - 失效
公开(公告)号：JPS5852322B2
公开(公告)日：1983-11-22
申请号：JP8414676
申请日：1976-07-14
申请人： Mitsubishi Electric Corp
发明人： HAKATA TETSUO , WATANABE TSUGIO
IPC分类号： H01F27/12

15. 发明专利

JPS57156682A IMPULSE VOLTAGE GENERATOR 失效
公开(公告)号：JPS57156682A
公开(公告)日：1982-09-28
申请号：JP4145381
申请日：1981-03-20
申请人： MITSUBISHI ELECTRIC CORP
发明人： YAMADA NAOYA , KISHI AKIO , WATANABE TSUGIO
IPC分类号： H02M9/04 , H03K3/53
摘要： PURPOSE:To protect an apparatus to be tested, and to make a voltage waveform conformed with the specification to be generated by an impulse voltage generator by a method wherein a non-linear type resistor device is connected in parallel to the apparatus to be tested. CONSTITUTION:A non-linear type resistor device 11 is connected in parallel to the apparatus 5 to be tested. Energy corresponding to the voltage of the necessitated test voltage flows to the earth through the non-linear type resistor device 11, and accordingly a suppressed voltage waveform is applied to the apparatus 5 to be tested. The peak value of the voltage waveform to be applied to the apparatus 5 to be tested is the necessitated test voltage, and protects the apparatus 5 to be tested from application of excessive voltage, and the voltage waveform having the long wave tail can be generated.

16. 发明专利

JPS62127039A MEDICAL NUCLEAR MAGNETIC RESONANCE IMAGING SYSTEM 失效
公开(公告)号：JPS62127039A
公开(公告)日：1987-06-09
申请号：JP26380185
申请日：1985-11-26
申请人： MITSUBISHI ELECTRIC CORP
发明人： WATANABE TSUGIO , KATAOKA TAKESHI
IPC分类号： A61B10/00 , A61B5/055 , G01N24/08 , G01R33/48

17. 发明专利

JPH0471209A STATIC MAGNETIC FIELD GENERATING MAGNET DEVICE 失效
公开(公告)号：JPH0471209A
公开(公告)日：1992-03-05
申请号：JP18359290
申请日：1990-07-11
申请人： MITSUBISHI ELECTRIC CORP
发明人： YAMAZAKI AKINORI , WATANABE TSUGIO
IPC分类号： H01F7/20
摘要： PURPOSE:To miniaturize the whole shape and reduce product cost, by superposing and winding a static magnetic field uniformity correction coil around a bobbin wherein a large diameter coil out of inclined magnetic field coils is wound. CONSTITUTION:A static magnetic field uniformity correction coil 4 is wound around a large diameter bobbin 5b so as to be superposed on an inclined magnetic field coil 3. That is, the bobbin 5b is commonly used by the static magnetic field uniformity correction coil 4 and the inclined magnetic field coil 3.

18. 发明专利

JPH0226325B2 失效
公开(公告)号：JPH0226325B2
公开(公告)日：1990-06-08
申请号：JP678981
申请日：1981-01-19
申请人： MITSUBISHI ELECTRIC CORP
发明人： WATANABE TSUGIO , AONO ICHIRO , YAMADA NAOYA , FUKAMACHI TETSUO
IPC分类号： H05K9/00 , H01B17/42 , H01T19/02

19. 发明专利

JPS5830553B2 失效
公开(公告)号：JPS5830553B2
公开(公告)日：1983-06-29
申请号：JP15026677
申请日：1977-12-13
申请人： MITSUBISHI ELECTRIC CORP
发明人： KISHI AKIO , MIURA YOSHIKAZU , WATANABE TSUGIO , MYAMOTO AKIO
IPC分类号： G01N27/60 , G01R29/24 , G01R31/00 , G01R31/12

20. 发明专利

JPS57133367A TESTING DEVICE FOR INSULATION 失效
公开(公告)号：JPS57133367A
公开(公告)日：1982-08-18
申请号：JP1861581
申请日：1981-02-10
申请人： MITSUBISHI ELECTRIC CORP
发明人： SUGA TOSHIROU , MATSUMOTO ITSUROU , MATSUDA SETSUYUKI , WATANABE TSUGIO , YAMADA NAOYA
IPC分类号： G01R31/12
摘要： PURPOSE:To enable simple switching-over of tests for AC pressure tightness, lightening impulse and switching impulse by providing a connection switch in a tank filled up with insulation media and by conducting switching of connection by means of an operating shaft. CONSTITUTION:Within the tank 21, the connection switch 26 is housed together with the insulation media, including SF6 gas, an insulation oil, etc. And, by operating the connection switch 26 by means of an operating box 28, the second terminal 22b is connected to the third terminal 22c through switching by a movable terminal 22d in the case of an AC voltage test, while the first terminal 22a is connected to the third terminal 22c through switching by the movable terminal 22d in the case of a lightening impulse voltage test or of a switching impulse voltage test. Accordingly, a preparatory work for testing conducted so far each time when a testing item is changed is simplified. The effect of this device is remarkable in a development test and the like.

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