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21. 发明专利

JPS51113100A A TORUS TYPE NUCLEAR FUSION APPARATUS 失效
公开(公告)号：JPS51113100A
公开(公告)日：1976-10-05
申请号：JP3840275
申请日：1975-03-28
申请人： HITACHI LTD
发明人： KURITA ISAO , HASHIMOTO HIROSHI , ITOU YUTAKA , TAKIZAWA TERUHIRO
IPC分类号： G21B1/11 , G21B1/00 , H05B7/18
摘要： PURPOSE:The holding of a poroidal coil is simplified according to holding a poroidal coil by a coil support between troidal coils.

22. 发明专利

JPS6017392A SUPPORTER FOR COIL 失效
公开(公告)号：JPS6017392A
公开(公告)日：1985-01-29
申请号：JP12476383
申请日：1983-07-11
申请人： HITACHI LTD , HITACHI SERVICE ENG
发明人： TAKIZAWA TERUHIRO , SHIZUOKA YOSHIHIDE , ITOU YUTAKA
IPC分类号： G21B1/11 , G21B1/00 , H01F5/00 , H01F7/20

23. 发明专利

JPS608775A NUCLEAR FUSION DEVICE 失效
公开(公告)号：JPS608775A
公开(公告)日：1985-01-17
申请号：JP11590283
申请日：1983-06-29
申请人： HITACHI LTD
发明人： ITOU YUTAKA
IPC分类号： H05H1/00 , G21B1/00 , G21B1/05

24. 发明专利

JPS59115948A Absorption type heat pump 失效
公开(公告)号：JPS59115948A
公开(公告)日：1984-07-04
申请号：JP22393482
申请日：1982-12-22
申请人： Hitachi Ltd , Chisso Corp
发明人： SHIYOUJI SABUROU , ITOU YUTAKA , HONMA KICHIJI , NAKANO FUMIO , HARADA HIROSHI , KAWAMURA SHINICHI , TARAO RIYOUKICHI , SUEYOSHI KOUJI
IPC分类号： F25B15/00

25. 发明专利

JPS5974704A Waveguide 失效
标题翻译：波导
公开(公告)号：JPS5974704A
公开(公告)日：1984-04-27
申请号：JP18460382
申请日：1982-10-22
申请人： Hitachi Ltd
发明人： ITOU YUTAKA
IPC分类号： H01P3/12 , B32B1/08 , B32B7/02 , B32B9/04 , H01P11/00
CPC分类号： H01P11/002
摘要： PURPOSE:To reduce the weight of a waveguide and to avoid a short circuit between devices connected by the waveguide via the waveguide and its supporting constitution by constituting the waveguide with a nonconductive material and coating the inner surface of the waveguide with a good conductor. CONSTITUTION:A tubular waveguide 1 which transmits electromagnetic waves and its connection flange 2 are made of an insulated material such as plastic, ceramics, glass, etc. A conductive coat 3 of a good conductor is provided consecutively on the inner surface of the waveguide 1 and a part of the flange surface. The coat 3 is formed by a dry process such as a vacuum vapor deposition process, an ion plating process, etc. The depth (d) of the coat 3 is defined, as d=(2omegasigmamu) , where omega equals to 2pif, (f) equals to the frequency of an electromagnetic wave, sigma equals to the conductivity of the coat and mu equals to the permeability of the coat respectively. As a result, the internal leakage of electromagnetic waves is prevented for the waveguide 1 with the reduction of weight of the waveguide 1. Furthermore a short circuit is avoided between devices which are connected by the waveguide 1.
摘要翻译：目的：为了减少波导的重量并避免波导通过波导连接的器件之间的短路及其支撑结构，通过用非导电材料构成波导并用良好的导体涂覆波导的内表面。构成：传输电磁波的管状波导1及其连接凸缘2由诸如塑料，陶瓷，玻璃等的绝缘材料制成。良导体的导电涂层3连续地设置在波导管1的内表面上和法兰表面的一部分。涂层3通过诸如真空气相沉积法，离子镀处理等的干法形成。涂层3的深度（d）定义为d =（2omegasigmamu）1/2，其中ω 等于2pif，（f）等于电磁波的频率，σ等于涂层的电导率，μ等于涂层的渗透率。结果，通过波导1的重量的减小，防止了波导1的电磁波的内部泄漏。此外，由波导1连接的装置之间避免了短路。

26. 发明专利

JPS5842199A NEUTRON PARTICLE INCIDENT UNIT 失效
公开(公告)号：JPS5842199A
公开(公告)日：1983-03-11
申请号：JP13848281
申请日：1981-09-04
申请人： HITACHI LTD
发明人： ITOU YUTAKA
IPC分类号： H05H1/22 , H05H3/00 , H05H3/02

27. 发明专利

JPS57194329A VACUUM DEVICE 失效
公开(公告)号：JPS57194329A
公开(公告)日：1982-11-29
申请号：JP7933481
申请日：1981-05-27
申请人： HITACHI LTD
发明人： ITOU YUTAKA
IPC分类号： G01M3/20 , G01M3/22
摘要： PURPOSE:To perform a high-precision leakage test by providing a pipe for leading gas outside of a heat insulating layer to the space between a vacuum container and the heat insulating layer, and then introducing testing gap to the circumference of the external wall of the vacuum container through the pipe during the leakage test. CONSTITUTION:The space between the external wall of a vacuum container 1 and a heat insulating layer 3 is utilized to install an air pipe 12 provided with an adequate number of holes 13 of proper size, and its one end is led out through the heat insulating layer 3 nd the armor 10 of the heat insulating layer. During a leakage test, testing apparatus is installed to this vacuum device and testing gas is charged in a cover 8. Then, the testing gas is introduced into the space between the external wall of the vacuum container 1 and heat insulating layer 3 through the air pipe 12 until this space is filled. The vacuum container 1 is evacuated by a vacuum discharging system 4 and the amount of testing gas leaking into the vacuum container 1 is measured by a detector 6.

28. 发明专利

JPS5764993A Method of producing printed circuit board 失效
公开(公告)号：JPS5764993A
公开(公告)日：1982-04-20
申请号：JP14044580
申请日：1980-10-09
申请人： Hitachi Ltd
发明人： KAWAMOTO MINEO , MURAKAMI KANJI , ITOU YUTAKA , MATSUDA YOUICHI , WAJIMA MOTOYO , MORISHITA YASUSADA , KAWAKUBO SHIYOUJI , YOSHIMURA TOYOFUSA
IPC分类号： H05K1/03 , H05K3/18 , H05K3/38
CPC分类号： H05K3/181 , H05K1/0373 , H05K3/184 , H05K3/387 , H05K2201/012 , H05K2201/0209 , H05K2203/0773 , H05K2203/1407

29. 发明专利

JPS5676597A DEVICE FOR OBSERVING ARTICLE UNDER PRESSURE 失效
公开(公告)号：JPS5676597A
公开(公告)日：1981-06-24
申请号：JP15394679
申请日：1979-11-27
申请人： HITACHI LTD
发明人： SHIMAZAKI TAKESHI , WAJIMA MOTOYO , TAKAHASHI AKIO , ITOU YUTAKA
IPC分类号： H05K3/46

30. 发明专利

JPS55129683A VACUUM VALVE 失效
公开(公告)号：JPS55129683A
公开(公告)日：1980-10-07
申请号：JP3437579
申请日：1979-03-26
申请人： HITACHI LTD
发明人： ITOU YUTAKA
IPC分类号： F16K51/02
摘要： PURPOSE:To maintain a high characteristic for sealing in a vacuum valve provided with a metallic valve seat and a seal-packing of a valve lid to contact therewith by jetting gas toward the contacting part just before the valve seat is brought into contact with the seal-packing for closing the valve. CONSTITUTION:A valve seat 30 made of hard metal and a seal-packing 28 for a valve lid 20 made of soft metal are provided in a vacuum valve composed of a valve main body 10, a connecting flange 12, and a valve-driving part 14 for resisting against baking and radiation. A mechanism is taken for closing a valve to jet gas toward a sealing part from a nozzle 32 just before a valve seat 30 is brought into contact with a seal-packing 28. Consequently, minute dusts stuck to surfaces of the valve seat 30 and the seal-packing 28 are blown away by the jetted gas, and the sealing part is protected against injuries for maintaining the characteristic for sealing.

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