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111. 发明专利

JPH09141044A NITROGEN OXIDES REMOVING DEVICE 失效
公开(公告)号：JPH09141044A
公开(公告)日：1997-06-03
申请号：JP30161995
申请日：1995-11-20
申请人： TOSHIBA CORP
发明人： YASUI SUKEYUKI , TANAKA MOTOFUMI
IPC分类号： B01D53/34 , B01D53/32 , B01D53/56 , B01D53/74
摘要： PROBLEM TO BE SOLVED: To remove NOx at a high efficiency by colliding a flue gas with a duct sidewall plate to turn the direction and to transiently retain at a corona discharge generating part in a gas introducing pipe zone. SOLUTION: The flue gas duct is composed of a pair of cathode plates 1a and 1b made of metal and parallel flat plate electrodes and a pair of sidewall plates 1c composed of insulating materials and the flue gas G is passed through the flue gas duct. A discharge treating section D is formed in a zone opposed to the cathodes 1a and 1b and the metal made gas introducing pipe 2 having many nozzle electrodes 3, which are airtightly part through the sidewall plate 1d and have opened tips, is arranged near the center of the discharge treating section D. The flue gas G is collided with the sidewall plates 1c to turn the direction when introduced from the upstream side of an inlet into the duct and is transiently retained in the vicinity of the gas introducing pipe 2 with nozzle electrode, where corona discharge is generated. By adding a trace quantity of an NH3 -containing gas thereinto, the chemical reaction is accelerated and the flue gas is effectively denitrificated.

112. 发明专利

JPH08236053A ELECTRON GUN 失效
公开(公告)号：JPH08236053A
公开(公告)日：1996-09-13
申请号：JP3950195
申请日：1995-02-28
申请人： TOSHIBA CORP
发明人： YASUI SUKEYUKI
IPC分类号： H01J37/067 , H01J37/075
摘要： PURPOSE: To attain high efficiency and high stability by generating an electron gun waveform similar to impression pulse voltage, and generating an electron beam having a necessary beam characteristic. CONSTITUTION: A DC power source 16 ionizes gas by performing discharge by impressing DC voltage on a positive electrode wire 1, and makes a cation steadily exist in an ionizing chamber 3. A pulse power source 17 impresses pulse voltage on a negative electrode 7, and accelerates the cation steadily existing in the ionizing chamber 3.

113. 发明专利

JPH07302565A PLASMA SYSTEM ELECTRON GUN 失效
公开(公告)号：JPH07302565A
公开(公告)日：1995-11-14
申请号：JP9362194
申请日：1994-05-06
申请人： TOSHIBA CORP
发明人： YASUI SUKEYUKI
IPC分类号： H01J37/077
摘要： PURPOSE:To reduce the frequency of maintenance by restraining the heating of a negative electrode by incidence of an ion beam. CONSTITUTION:A head part of a T-shaped heat radiating piece 10 manufactured by a copper material is brazed to a spot facing part 6a formed on the reverse of a negative electrode 6 installed on the tip of a negative electrode supporting insulating cylinder 7 through an O ring 16. A high voltage cable 8 is connected to a connecting part 10a suspended from the reverse center of the heat radiating piece 10, and the other end of this high voltage cable 8 is connected to high voltage negative electric power supply. Insulating oil is injected inside of the negative electrode supporting insulating cylinder 7, and the negative electrode 6 is cooled through the heat radiating piece 10.

114. 发明专利

JPH07282992A PLASMA X-RAY GENERATING DEVICE 失效
公开(公告)号：JPH07282992A
公开(公告)日：1995-10-27
申请号：JP7676394
申请日：1994-04-15
申请人： TOSHIBA CORP
发明人： HIROTA MUNEYA , YASUI SUKEYUKI
IPC分类号： G21K5/02 , G21K5/08 , H01J35/10 , H05G2/00
摘要： PURPOSE:To provide a plasma X-ray generating device which can prevent fusion of the surface of a cathode and can emit X-rays having a stable intensity. CONSTITUTION:A cavity 6b is formed in a T-form cathode 6A. At the rear of the cathode 6A, a flow path is formed for supplying externally and exhausting a refrigerant to/from this cavity 6b, to which also pure water 9 is supplied from a connection pipe 10 connected with the flow path so that the head of time cathode 6A is cooled.

115. 发明专利

JPH07226179A ELECTRON GUN 失效
公开(公告)号：JPH07226179A
公开(公告)日：1995-08-22
申请号：JP1627494
申请日：1994-02-10
申请人： TOSHIBA CORP
发明人： YASUI SUKEYUKI , HIROTA MUNEYA
IPC分类号： G21K5/00 , G21K5/04 , H01J27/08 , H01J37/073
摘要： PURPOSE:To take out a highly intense electron beam or X-ray beam in a small cross-sectional area by outputting a secondary electron emitted from a negative electrode outside from an electron beam taking-out window as an electron beam. CONSTITUTION:In the case where an electron gun is actuated, when pulse voltage is impressed on a positive electrode wire 20, discharge is caused in an ionization chamber 10, and plasma is generated in the ionization chamber 10. A negative electrode 40 and a grid-shaped negative electrode 50 housed in a high voltage chamber 60 pull out ions from this plasma through an extraction grid 30. The ions are accelerated toward the negative electrode 40 by passing through the extraction grid 30 and the grid-shaped negative electrode 50. Here, the accelerated ions collide with the negative electrode 40, and a secondary elecrtron emitted from a surface of the negative electrode 40 passes through a cavity surrounded by the ionization chamber 10 along the electric potential distribution between the negative electrode 40 and the grid-shaped negative electrode 50. This secondary electron is accelerated toward an electron beam taking-out window 70, and is outputted as an electron beam from the window 70 without passing through the ionization chamber 10.

116. 发明专利

JPH06150858A ELECTRON GUN 失效
公开(公告)号：JPH06150858A
公开(公告)日：1994-05-31
申请号：JP30265492
申请日：1992-11-12
申请人： TOSHIBA CORP
发明人： NIWA KEIKO , YASUI SUKEYUKI
IPC分类号： H01J37/077
摘要： PURPOSE:To enable longer time operation by maintaining insulation of a high voltage chamber in an electron gun. CONSTITUTION:The inside of a cathode 20 is constituted in a hollow shape, and the hollow part is used as an insulating gas chamber 21 in which insulating gas flows. That is, the insulating gas chamber 21 isolated from a high voltage chamber 5 is formed inside the cathode, and the insulating gas (for example, SF6 gas) under almost atmospheric pressure is supplied here. The insulating gas chamber 21 is sealed up completely to the high voltage chamber 5, and is constituted so that gas leakage and the like are not caused.

117. 发明专利

JPH05315676A PULSE LASER DISCHARGE ELECTRODE 失效
公开(公告)号：JPH05315676A
公开(公告)日：1993-11-26
申请号：JP12060092
申请日：1992-05-13
申请人： TOSHIBA CORP
发明人： YASUOKA KOICHI , ISHII AKIRA , YASUI SUKEYUKI
IPC分类号： H01S3/038 , H01S3/0977
摘要： PURPOSE:To make it possible to perform an effective pre-ionization through reducing a value of current which flows in a spark discharge electrode of a pulse laser electrode and its duration and obtain each long-life optical part comprising the spark discharge electrode and a laser and improve the stability of a laser output. CONSTITUTION:A first main electrode 1 is connected to a high-voltage power source 9 through a capacitor 5 for discharge and a resistor 8 for charge, and the capacitor 5 for discharge is grounded through a switch. The first main electrode 1 is grounded through an inductance 6 for charge. A first metal electrode 3a comprising a spark discharge electrode is connected to the main electrode 1. A second metal electrode 3b comprising the spark discharge electrode is installed opposite to the first metal electrode 3a through a gap 4 of the first metal electrode 3a. The second metal electrode 3b whose circumference is covered with a dielectric 12 is grounded through an impedance 13.

118. 发明专利

JPH04239786A CARBON OXIDE GAS LASER DEVICE 失效
公开(公告)号：JPH04239786A
公开(公告)日：1992-08-27
申请号：JP641791
申请日：1991-01-23
申请人： TOSHIBA CORP
发明人： YASUOKA KOICHI , ISHII AKIRA , YASUI SUKEYUKI
IPC分类号： H01S3/036 , H01S3/097
摘要： PURPOSE:To reduce the amount of reproduction of laser gas by reducing the number of carbon dioxide molecules decomposed by glow discharge. CONSTITUTION:There are provided in a gas container 1 which is filled with laser gas electric discharge parts 2a, 2b composed of a capacitor 5 and a gap 6 for producing glow discharge, an air fan 7 including heat exchangers 9a, 9b before and behind itself and circulating the laser gas, and laser gas reproducer 11 containing laser gas reproduction material 12 therein. The laser gas includes carbon dioxide, nitrogen, helium, and carbon monoxide.

119. 发明专利

JPH04196039A ELECTRON GUN 失效
公开(公告)号：JPH04196039A
公开(公告)日：1992-07-15
申请号：JP32252790
申请日：1990-11-28
申请人： TOSHIBA CORP
发明人： YASUI SUKEYUKI , YASUOKA KOICHI , ISHII AKIRA
IPC分类号： B23K15/00 , H01J37/077 , H01J49/08 , H01S3/09
摘要： PURPOSE:To perform easy adjustment of the intensity of an electron beam and reduce the capacity of a power supply connected to a cathode, by providing a magnetic field generating device for generating a magnetic field parallel to the longitudinal direction of a wire placed in an ionization chamber. CONSTITUTION:When a pulsive voltage is applied between an anode wire 1 provided in an ionization chamber 3 and the wall 4 of the ionization chamber, and also applying the same voltage to a magnetic field generating device 20 synchronously, a gas in the ionization chamber 3 is ionized by a pulsive discharge to generate electrons and the resulting electrons move in spiral motion in the longitudinal direction of the anode wire 1. As the result, collisions with gas atoms are so promoted that ionization efficiency is increased as well as a plasma density. Thus, even if the same electron beam intensity is required as in a conventional device, ionic current can be increased by generating a magnetic field parallel to the longitudinal direction of the anode wire 1 by the magnetic field generating device 20. Consequently a negative biasing voltage V applied to a cathode 7 and a pulsive voltage applied to the anode wire 1 can be reduced so that a power supply capacity can be reduced.

120. 发明专利

JPH0448789A PULSED LASER APPARATUS 失效
公开(公告)号：JPH0448789A
公开(公告)日：1992-02-18
申请号：JP15529290
申请日：1990-06-15
申请人： TOSHIBA CORP
发明人： ISHII AKIRA , YASUOKA KOICHI , YASUI SUKEYUKI
IPC分类号： H01S3/038 , H01S3/097 , H01S3/0977
摘要： PURPOSE:To eliminate a spiral stream caused on the downstream side of a main electrode, to prevent a partial electric discharge from being generated and to obtain an always stable laser output by a method wherein the angle formed by the lengthwise direction of the main electrode and by a laser gas stream is set so as to be less than a definite value. CONSTITUTION:The angle alpha formed by the lengthwise direction of main electrodes 1, 2 and by a laser gas stream is constituted so as to be less than 90 deg.. Even when a laser gas 3 which has been passed between the main electrodes 1, 2 flows into the side face of the main electrodes on the downstream side of the main electrodes 1, 2, the laser gas 3 flows to the direction of an optical axis 7 along the surface of the main electrodes 1, 2 because the laser gas 3 is sent at a prescribed angle to the main electrodes 1, 2. No spiral stream is caused at the side part of the downstream side of the main electrodes 1, 2. As a result, it is possible to prevent a deteriorated laser gas form being stagnant on the downstream side of the main electrodes. Consequently, even when a continuous electric discharge is executed, a partial electric discharge is not ignited on the downstream side of the main electrodes and a stable glow discharge can be obtained.

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