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1. 发明专利

JPS5171062A Denshisenshusokuyojikaisochinojikaianteika shorihoho 失效
公开(公告)号：JPS5171062A
公开(公告)日：1976-06-19
申请号：JP14438674
申请日：1974-12-18
申请人： Nippon Telegraph & Telephone , Hitachi Metals Ltd
发明人： KAWASHIMA FUJIO , SUGAWARA TSUTOMU , KOMINE YUKIO , HARADA HIDEKI , TAKIMOTO SADAJI , MIZUHARA TAKESHI
IPC分类号： H01J23/087 , H01F7/02 , H01F13/00 , H01G4/22 , H01J23/08

2. 发明专利

JPS5171061A Shukijikaisochi 失效
公开(公告)号：JPS5171061A
公开(公告)日：1976-06-19
申请号：JP14438574
申请日：1974-12-18
申请人： Nippon Telegraph & Telephone , Hitachi Metals Ltd
发明人： KAWASHIMA FUJIO , SUGAWARA TSUTOMU , KOMINE YUKIO , HARADA HIDEKI , TAKIMOTO SADAJI , MIZUHARA TAKESHI
IPC分类号： H01J23/087 , H01J23/08

3. 发明专利

JPS60132428A INTERMITTENT ACTION CONTROL SYSTEM OF LARGE POWER AMPLIFIER 失效
公开(公告)号：JPS60132428A
公开(公告)日：1985-07-15
申请号：JP23964083
申请日：1983-12-21
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： HATSUDA TAKESHI , KAWASHIMA FUJIO
IPC分类号： H03F3/20 , H04B7/15 , H04B7/155 , H04B7/212 , H04J3/10
摘要： PURPOSE:To prevent the generation of useless noise radio waves by using the information on transmission timing signals, etc. of a time-division multiple access device to turn on and off the anode voltage of a traveling wave tube. CONSTITUTION:When the signal given from an output terminal 10 of a time-division multiple address device TDMA8 is supplied to a large power amplifier 16, the output of a traveling wave tube TWT is obtained. When a call is produced, the head pulse S of the 3rd super-frame (d) is erased. Then a fall command pulse P2 is sent to a TWT power supply control timing signal 4 at the corresponding position. Thus a TWT power supply 12 is switched off. When no call is produced, a head rise command pulse P1 is produced so as to have a rise earlier than the head burst S by some bits (DELTAt). Thus the power supply 12 is switched on. In such a way, the power supply 12 is turned on and off according to the periodical property of the TDMA signal. Thus the amplifier 16 has an intermittent action.

4. 发明专利

JPS58142266A POWER SOURCE UNIT FOR MEASURING ELECTRON TUBE 失效
公开(公告)号：JPS58142266A
公开(公告)日：1983-08-24
申请号：JP2434982
申请日：1982-02-19
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： MITA OSAHISA , KAWASHIMA FUJIO , SHINOHARA KIBATSU , UMEZAWA KAZUTO
IPC分类号： G01R31/24 , G01R31/25
摘要： PURPOSE:To provide an optimum power source unit for automatic measurement of travelling wave tubes or the like by connecting optical fibers between processing unit each provided at a low potential part and a high potential part and the parts. CONSTITUTION:An interface section 3 of a ground potential to connect a measurement control section 2 and a universal data bus 5 to be linked to an external controller 6 and the measurement control section 2 and the interface section 3 are connected with optical fibers 41 and 42. A digital command signal from the controller 6 enters the interface section 3 passing a data bus 5 and then a low potential side processing unit 8 via the interface circuit 7. When entering from a power source section 1, a voltage setting signal is fed sequentially to a light emitter 101 with a parallel-serial conversion circuit 91. Light of the light emitter 101 reaches a photo detector 111 of the measurement control section 2 through the optical fiber 41, converted into a parallel signal as digital electrical signal passing through the subsequent serial-parallel conversion circuit 12, and then, reaches a high potential side processing unit 13. This eliminates malfunctioning due to mixing of noises and disturbing pulses by the connection of the measurement control sectin 2 and the interface section 3 with the optical fibers 41 and 42.

5. 发明专利

JPS5864736A PERIODIC MAGNETIC-FIELD DEVICE 失效
公开(公告)号：JPS5864736A
公开(公告)日：1983-04-18
申请号：JP16092581
申请日：1981-10-12
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： HIRATA HITOSHI , KAWASHIMA FUJIO
IPC分类号： H01J23/087
摘要： PURPOSE:To introduce heat efficiently into a periodic magnetic-field device, and enhance the cooling effect of a spiral circuit by providing a pole piece with a slit extending in the radial direction of the pole piece, and installing the pole piece around the outer circumference of a metallic cylinder, being followed by compressing the pole piece so that the facing surfaces of the slit become in close contact with one another. CONSTITUTION:A pole piece 5 is provided with a slit 6. A space 4 is allowed between a metallic cylinder 3 and the pole piece 5 so that the piece 5 can easily move around the cylinder 3. The width of the slit 6 is set so that the inner diameter of the piece 5 becomes slightly smaller than the outer diameter of the cylinder 3 penetrating the piece 5 when the piece 5 is compressed in such a manner that the surfaces of the piece 5 become in complete contact with one another. Owing to the above constitution, the heat of a spiral circuit heated by high-frequency electric power can be effectively introduced into a periodic magnetic-field device which has a large volume and a large surface area. Consequently, the cooling effect of the spiral circuit can be enhanced.

6. 发明专利

JPS5862573A TESTER FOR LIFE OF TRAVELLING-WAVE TUBE 失效
公开(公告)号：JPS5862573A
公开(公告)日：1983-04-14
申请号：JP16092681
申请日：1981-10-12
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： MITA OSAHISA , ISHIBORI KOUICHI , KAWASHIMA FUJIO , SAKAYORI MITSUO , SUGAWARA TSUTOMU
IPC分类号： G01R31/24 , G01R31/25 , H01J23/34
摘要： PURPOSE:To estimate the life of a travelling-wave tube by measuring a small signal gain of the tube when a high frequency input power thereto is lowered by about 20dB at a desired time to detect the tendency to deterioration in the tube for a relatively short time. CONSTITUTION:A signal generated with a signal generator 4 is introduced into a travelling-wave tube 1 to be measured by way of a rotary switch 5 and a high frequency line 3. The high frequency signal amplified by the tube 1 is measured with a high frequency power metal 6 and read with a controller 7. When moving from the condition as indicated by the solid line at the rotary switch 5 where the tube 1 is driven by a saturated output to the condition as indicated by the broken line at the controller 7, the signal from the signal generator 4 is damped by about 20dB with an attenuator 8 and becomes a small signal. The time-based change 10 in the gain of the small signal is measured based on the ratio between the small signal and the input power. Thus, the tendency to deteriration in the travelling-wave tube 1 can be detected quickly depending on the time-based change 9 in the saturated output thereby enabling the estimation of the life of a sample tube.

7. 发明专利

JPS5280771A ELECTRONIC TUBE CONTAINING CERAMIC SURROUNDING PARTS 失效
公开(公告)号：JPS5280771A
公开(公告)日：1977-07-06
申请号：JP15890375
申请日：1975-12-26
申请人： NIPPON ELECTRIC CO , NIPPON TELEGRAPH & TELEPHONE
发明人： OORUI RIYUUZOU , KAWASHIMA FUJIO
IPC分类号： H01J5/02 , H01J5/06 , H01J23/06 , H01J23/12
摘要： PURPOSE:To prevent occurrence of arc discharge by positioning the terminal portion of shielding metal material protruding from negative potential electrode at the place where a prescribed distance is secured from positive potential electrode.

8. 发明专利

JPS5255468A ELECTRON TUBE CONTAINING CERAMIC SURROUNDING PARTS 失效
公开(公告)号：JPS5255468A
公开(公告)日：1977-05-06
申请号：JP13190375
申请日：1975-10-31
申请人： NIPPON ELECTRIC CO , NIPPON TELEGRAPH & TELEPHONE
发明人： OORUI RIYUUZOU , KAWASHIMA FUJIO
IPC分类号： H01J3/02 , H01J5/02 , H01J5/06 , H01J23/06 , H01J23/12
摘要： PURPOSE:The inonization of absorption gas in internal surface of ceramic surrounding parts due to the electron discharged from metal electrode at negative potential side is prevented in order to eliminate arc discharge.

9. 发明专利

JPH02302381A JOINING OF CERAMIC MATERIAL TO MOLYBDENUM WIRE 失效
公开(公告)号：JPH02302381A
公开(公告)日：1990-12-14
申请号：JP12014389
申请日：1989-05-13
申请人： SHINKO ELECTRIC IND CO , NIPPON TELEGRAPH & TELEPHONE
发明人： KOYAMA SHOICHI , YAMAZAKI SHUJI , SHIMOKAWA KIYOSHI , KAWASHIMA FUJIO
IPC分类号： B23K1/19 , C04B37/02
摘要： PURPOSE:To obtain high bond strength in readily temperature control free from influence of magnetic properties without requiring plating treatment by forming a metallized layer at a joining position of ceramic material and molybdenum wire and using gold or gold-copper alloy as solder material. CONSTITUTION:A metallized layer 14 is formed at a joining position of a ceramic material 1 and molybdenum 10 by hot sputtering method. Then molybdenum wire 10 is joined to the metallized layer 14 with gold or a gold-copper alloy (gold content: >=35wt.%).

10. 发明专利

JPS58120171A MICROWAVE POWER DETECTOR 失效
公开(公告)号：JPS58120171A
公开(公告)日：1983-07-16
申请号：JP279782
申请日：1982-01-13
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： MITA OSAHISA , KAWASHIMA FUJIO , SAKAYORI MITSUO , SHINOHARA KIBATSU , SUZUKI KUNIO , SATOU SOUSUKE
IPC分类号： G01R21/04
摘要： PURPOSE:To achieve a better response time along with a higher detection sensitivity by connecting a plurality of thermocouples in series while they are placed tightly on a microwave absorbing body in a thin manner. CONSTITUTION:A resistant thin film 9 is formed on one side of an insulating plate 8 while a thermocouple 6 is mounted on the opposite side thereof and then, they are covered with an insulating sheet 10. The thermocouple 6 is so arranged that two different kinds of metals 61 and 62, for example, bismuth and antimony or copper and constantan shaped like a thin film by thin film production method such as vacuum evaporation and sputtering are connected alternately in series. In orher words, a heat contact section 63 is arrayed in contact with the long side of the insulating plate 8 and a cold contact section 64 on the other side thereof. A power detection plate 5 thus formed is inserted slantly into a wave guide to detect microwave power therein.

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