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1. 发明专利

JPS58118104A FOIL WOUND TYPE TRANSFORMER 失效
公开(公告)号：JPS58118104A
公开(公告)日：1983-07-14
申请号：JP10782
申请日：1982-01-05
申请人： TOKYO SHIBAURA ELECTRIC CO
发明人： KADOMA SHIGEKI
IPC分类号： H01F27/28 , H01F27/10 , H01F27/18
摘要： PURPOSE:To prevent trouble caused by dielectric breakdown or the obstruction of a cooling duct in a transformer by a method wherein an air bubble is detect- ed by providing a floating flow meter in a liquid collecting pipe or a cooling duct for the flow of a cooling medium installed within the coil of the transformer. CONSTITUTION:A cooling medium 7 pressurized and circulated by a pump 8 is made to enter a cooling duct 6 after passing through a lower liquid collecting pipe 11, increasing it temperature because of the heat radiated from a foil wound copper conductor 2, then passing through a floating flow meter 15 after the liquid collecting pipe 11 and to return to the pump 8 cooled by a cooler 9. When a fluid containing a mixture of air bubbles and the liquid passes through the flating flow meter 15, the air bubbles act to decrease the area where the fluid passes, causing violent vibrations and thus having the fact detected that air bubbles have passed therethrough. In this way, the trouble caused by dielectric breakdown or the obstruction of the cooling duct in the transformer can be prevented by detecting the air bubbles generated in the flow passage of the cooling medium.

2. 发明专利

JPS57107542A HOLLOW-CATHODE DISCHARGE DEVICE 失效
公开(公告)号：JPS57107542A
公开(公告)日：1982-07-05
申请号：JP18422580
申请日：1980-12-25
申请人： TOKYO SHIBAURA ELECTRIC CO
发明人： SUZUKI SETSUO , MORIMIYA OSAMU , KADOMA SHIGEKI
IPC分类号： H01J3/04 , H01J1/13 , H01J27/02 , H01J27/08
摘要： PURPOSE:To reduce the power consumption and to lengthen the service life by constructing the starting electrode with a board having small hole from one open end of a hollow cathode and facing in the proximity of said opening and a tubular member surrounding the cathode. CONSTITUTION:A heater 22 for heating a cathode 21 is provided on the outer circumference of a cathode 21 formed with a thermion emitting material. A starting electrode 26 is fixed through a circular insulator 25 to one opening of the hollow cathode 21, where said starting electrode 26 is faced with a tubular member 27 surrounding the cathode 26 and the heater 22 at one opening of the cathode 21 and a board 28 having a small hole 28a from opening of said cathode 21 is formed integrally. The heat from the heater 22 is shielded by the tubular member 27 while the gas flow from the board 28 is limited by said board 28. Consequently the power consumption is reduced and the service life can be lengthened.

3. 发明专利

JPS5711449A HOLLOW CATHODE DISCHARGE DEVICE 失效
公开(公告)号：JPS5711449A
公开(公告)日：1982-01-21
申请号：JP8489880
申请日：1980-06-23
申请人： TOKYO SHIBAURA ELECTRIC CO
发明人： KADOMA SHIGEKI , SUZUKI SETSUO
IPC分类号： H01J3/04 , H01J1/13 , H01J27/08
摘要： PURPOSE:To improve the life of a hollow cathode and ease the starting of discharge by limiting the gas flow with a penetrating hole of a starting electrode which is provided coaxially with the hollow cathode outside the periphery of it and heating the hollow cathode through discharging between both electrodes. CONSTITUTION:An end of a hollow cathode 20 which is formed by providing a thermal electron emitter 22 on the inside surface at one end of cylinder 21, and end of a starting electrode 40 which is provided coaxially outside the periphery of the cathode 20 are fixed on an insulator 30, and other ends are extended into the discharging chamber 1. The gas flow into the inside of the cathode 20 is limited with a penetrating hole 40a on the starting electrode 40, while at the same time a voltage is applied between the cathode 20 and electrode 40 to discharge, and the cathode 20 is heated to emit thermal electrons abundantly. The penetrating hole 40a is used as an orifice and the hollow cathode is heated sufficiently without using a heater, thus the wear of the orifice is reduced to improve the life of the cathode 20, while the starting of discharge can be eased.

4. 发明专利

JPS5711447A HOLLOW CATHODE DISCHARGE DEVICE 失效
公开(公告)号：JPS5711447A
公开(公告)日：1982-01-21
申请号：JP8489680
申请日：1980-06-23
申请人： TOKYO SHIBAURA ELECTRIC CO
发明人： SUZUKI SETSUO , KADOMA SHIGEKI
IPC分类号： H01J3/04 , H01J1/13 , H01J27/08 , H05H1/48
摘要： PURPOSE:To increase the discharge current without making the device large by glow discharging between the first electrode and second electrode which form a coaxial doubled cylinder and then switching the counter part of arc discharge of the anode, from the first elecrode with a smaller diameter to both electrodes. CONSTITUTION:A first electrode 11 with a smaller diameter and second electrode 12 with a larger diameter are provided on an insulator 13 coaxially to form a doubled cylinder and a hollow cathode 10 is constituted. The switch 15 is turned on, and switches 17, 19 are turned off to apply a high voltage between both electrode from a power source 16, and the glow discharge is initiated between both electrode, covering the entire range. Then the switch 19 is turned on to start arc discharge between the electrode 11 and anode 14. Then the switch 15 is off and switch 17 is turned on to shortcircuit both electrode, and the electrode 12 also becomes effective as a cathode. Thus the glow discharge is prevented from concentration on the end of the hollow cathode, the life of the hollow cathode is improved because of its increased arc discharge area of the electrode, and the arc discharge current can be increased without making the device large.

5. 发明专利

JPS56126300A ION ACCELERATING AND DECELERATING DEVICE 失效
公开(公告)号：JPS56126300A
公开(公告)日：1981-10-03
申请号：JP3009080
申请日：1980-03-10
申请人： TOKYO SHIBAURA ELECTRIC CO
发明人： KADOMA SHIGEKI , SUKENOBU SATORU , SUZUKI SETSUO
IPC分类号： H01J27/02 , H05H1/22 , H05H5/00 , H05H5/02

6. 发明专利

JPS5661744A HOLLOW CATHODE DISCHARGER 失效
公开(公告)号：JPS5661744A
公开(公告)日：1981-05-27
申请号：JP13662679
申请日：1979-10-23
申请人： TOKYO SHIBAURA ELECTRIC CO
发明人： MORIMIYA OSAMU , SUZUKI SETSUO , KADOMA SHIGEKI
IPC分类号： H01J27/02 , H01J1/02 , H01J1/13 , H01J27/08 , H05H1/22
摘要： PURPOSE:To stabilize the starting of discharge and the steady discharge by varying the gas pressure in a hollow cathode at the start of discharge and during steady discharge. CONSTITUTION:At the start of discharge, open/close valves 14, 16 are opened to supply the gas stored at a gas storage 11 through fluid circuits 12, 13 into a cathode 2. Consequently the gas density in the cathode 2 at the start of discharge is increased. High voltage pulse is applied between the cathode 2 and a start electrode 6 at the start of discharge to produce the discharge between each electrodes 2, 6. Consequently the starting of hollow cathode arc discharge between the cathode 2 and anode 3 can be performed stably and reliably. During steady discharge the open/close valve 16 is closed to lower the gas density in the cathode 2 to maintain stable hollow cathode arc discharge.

7. 发明专利

JPS5661732A HOLLOW CATHODE DEVICE 失效
公开(公告)号：JPS5661732A
公开(公告)日：1981-05-27
申请号：JP13662879
申请日：1979-10-23
申请人： TOKYO SHIBAURA ELECTRIC CO
发明人： KADOMA SHIGEKI , SUZUKI SETSUO , MORIMIYA OSAMU
IPC分类号： H01J1/13 , H01J1/02
摘要： PURPOSE:To stably and easily perform the hollow-cathode arc discharge, by increasing the inner surface area of thermal cathode for the hollow-cathode discharging while making the cathode container for the thermal cathode mountable/dismountable. CONSTITUTION:A heater power source is connected between lead wires 18a, 18b, then the heater 20 is supplied with power to heat a hollow cathode 14 for the purpose to emit the thermion. Said heating and the gas flowing through a gas inlet hole 19a into the hollow cathode 14 will cause the hollow-cathode arc discharge between the hollow cathode 14 and the anode. The hollow cathode 15 is formed into a bellows having large inner surface area. When dismounting the flange 21 from the flange 12, a spring 16, spacer 15, hollow cathode 14 and an orifice 13 can be easily taken out thereby the hollow cathode 14 can be replaced with new one.

8. 发明专利

JPS5513876A ION SOURCE IN NUCLEAR FUSION REACTOR 失效
公开(公告)号：JPS5513876A
公开(公告)日：1980-01-31
申请号：JP8693478
申请日：1978-07-17
申请人： TOKYO SHIBAURA ELECTRIC CO
发明人： KADOMA SHIGEKI , MORIMIYA OSAMU
IPC分类号： H05H1/22 , G21B1/00

9. 发明专利

JPS53147273A DC BREAKER 失效
公开(公告)号：JPS53147273A
公开(公告)日：1978-12-21
申请号：JP6095677
申请日：1977-05-27
申请人： TOKYO SHIBAURA ELECTRIC CO
发明人： MORIMIYA OSAMU , SHINTANI YOSHIROU , KADOMA SHIGEKI
IPC分类号： H01H9/54

10. 发明专利

JPS56121256A ION SOURCE DEVICE 失效
公开(公告)号：JPS56121256A
公开(公告)日：1981-09-24
申请号：JP2442180
申请日：1980-02-28
申请人： TOKYO SHIBAURA ELECTRIC CO
发明人： SUKENOBU SATORU , KADOMA SHIGEKI , SUZUKI SETSUO
IPC分类号： H01J37/08 , H01J27/02
摘要： PURPOSE:To flow a less amount of gas into a vacuum line and decrease load applied to a vacuum pump, by applying the separation between an electric discharge chamber and the vacuum line with a partitioning mechanism at the time of discharge starting when gas pressure is high in the discharge chamber. CONSTITUTION:Between an electric discharge chamber 2 and vacuum vessel 22, a selectively open-close controllable shutter 21 is provided, while the first vacuum pump 20 for evacuating the inside of the discharge chamber 2 is separately provided. At the time of starting when more quantity of gas must be introduced into the discharge chamber 2, the shutter 21 is closed to lower the pressure of gas in the discharge chamber 2 to about 10 -10 Pa and then opened after starting, thus quantity of gas flowing into the vacuum vessel 22 is decreased. Accordingly a load applied to a vacuum pump 23 can be decreased.

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