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91. 发明专利

JPH05211052A PULSE ELECTRON GUN 失效
公开(公告)号：JPH05211052A
公开(公告)日：1993-08-20
申请号：JP1523192
申请日：1992-01-30
申请人： TOSHIBA CORP
发明人： YASUI SUKEYUKI , YASUOKA KOICHI , ISHII AKIRA
IPC分类号： H01J37/073 , H01J37/077
摘要： PURPOSE:To provide a pulse electron gun which has high repeatability, allow the width of electron beam to be easily increased or decreased to efficiently generate electron beam. CONSTITUTION:An insulator 20 is disposed between the wall of an ionization chamber 12 and the wall of a device 4 and a bias voltage source (not shown) for providing electric potential difference is connected between the wall of the ionization chamber 12 and the wall of the device 4. The bias voltage source allows the electric potetial of the ionization chamber to stay higher than that of the device.

92. 发明专利

JPH04294041A ELECTRON GUN 失效
公开(公告)号：JPH04294041A
公开(公告)日：1992-10-19
申请号：JP6055891
申请日：1991-03-25
申请人： TOSHIBA CORP
发明人： YASUI SUKEYUKI , YASUOKA KOICHI , ISHII AKIRA
IPC分类号： H01J37/077 , H01S3/0959 , H01S3/097
摘要： PURPOSE:To enhance the efficiency of an electron gun by introducing easy adjustability for the intensity of electron beam. CONSTITUTION:A heater 20 for heating cathode is installed in the neighborhood of a cathode 5 accommodated in a high voltage chamber 6. This heater 20 is mounted while penetrating the wall 7 of the chamber, and insulative substance 21 is arranged in this penetrated area.

93. 发明专利

JPH04255654A PULSE ELECTRON GUN 失效
公开(公告)号：JPH04255654A
公开(公告)日：1992-09-10
申请号：JP1727991
申请日：1991-02-08
申请人： TOSHIBA CORP
发明人： YASUI SUKEYUKI , YASUOKA KOICHI , ISHII AKIRA
IPC分类号： H01J37/077 , H01S3/0959
摘要： PURPOSE:To simplify the adjustment of an electron beam intensity, and the high repetition of pulses by preliminarily applying dc voltage to an anode wire laid in an ionizing chamber, and further applying pulse voltage to the anode wire. CONSTITUTION:DC voltage immediately below a level of anode wire discharge between an anode wire 1 in an ionizing chamber 3 and the division 4 thereof, is preliminarily applied to the wire 1. Low pulse voltage is, then, applied to the wire 1. Anode wire discharge takes place due to the pulse voltage, and plasma is generated within the chamber 3. In addition, the number of anode ions can be by far increased with the same pulse voltage as conventional. Even for obtaining the same electron beam intensity as conventional, therefore, pulse voltage applied to the wire 1 can be lowered, thereby enabling the capacity of a pulse power supply to be reduced. Also, the adjustment of electron beam intensity, and the high repetition of pulses can be made easy and highly efficient.

94. 发明专利

JPH04196040A ELECTRON GUN 失效
公开(公告)号：JPH04196040A
公开(公告)日：1992-07-15
申请号：JP32252890
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 , H01J37/067 , 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 constructing a cathode movable against an extracting grid. CONSTITUTION:Upon varying the intensity of an electron beam, not only by varying a voltage applied to a cathode 7 but also by moving the cathode 7 against an extracting grid 11, ionic current extracted from an ionization chamber 3 is varied. Consequently the adjustment of the intensity of the electron beam can easily be performed, so that a power source capacity can be reduced from that which is utilized by only a voltage varying operation even in the case when the same electron beam intensity is gained.

95. 发明专利

JPH0966221A FLUE GAS DECOMPOSING APPARATUS 失效
公开(公告)号：JPH0966221A
公开(公告)日：1997-03-11
申请号：JP22429595
申请日：1995-08-31
申请人： TOSHIBA CORP
发明人： YASUI SUKEYUKI
IPC分类号： B01D53/34 , B01D53/32 , B01D53/60 , B01D53/74
摘要： PROBLEM TO BE SOLVED: To introduce electric energy necessary for the decomposition of nitrogen oxides, sulfur oxides, etc., efficiently into flue gas. SOLUTION: In a flue gas decomposing apparatus in which flue gas containing nitrogen oxides, sufur oxides, etc., is led into an electric discharge space, and the contained nitrogen oxides and sulfur oxides are decomposed by applying a high voltage to discharging electrodes, the discharging electrodes are equipped with a large diameter electron generating electrode 13 and a small diameter electron accelerating electrode 11.

96. 发明专利

JPH0869771A PLASMA TYPE CONVERGENCE ELECTRON GUN 失效
公开(公告)号：JPH0869771A
公开(公告)日：1996-03-12
申请号：JP20626194
申请日：1994-08-31
申请人： TOSHIBA CORP
发明人： YASUI SUKEYUKI
IPC分类号： H01J37/075
摘要： PURPOSE: To generate an electron beam with the diameter converged small by constructing a frame at the periphery of a drawout grid with a size smaller than the drawout grid surface, converging ions drawn out of an ionization chamber, and bombarding a cathode with these ions. CONSTITUTION: A cathode 6 is contained in a high voltage chamber 4 which is in communication with an ionization chamber 2 accommodating a wire-form anode. A frame 8 at the periphery of the drawout grid 3 of this electron gun is positioned not in the same plane as the surface of the grid 3 and is configured smaller than the surface of the grid 3 at the inter-cathode distance. An ion I having a low initial speed drawn out of the chamber 2 through the grid 3 is converged to run against the cathode 6 by the lens effect in the shape of electric field of the iso-potential surface E due to the influence of the frame 8. Accordingly the diameter of the electron beam emitted by the cathode 6 is lessened, and a converged electron beam B is emitted.

97. 发明专利

JPH07130312A CONVERGING ELECTRON BEAM GENERATOR 失效
公开(公告)号：JPH07130312A
公开(公告)日：1995-05-19
申请号：JP27287493
申请日：1993-11-01
申请人： TOSHIBA CORP
发明人： YASUI SUKEYUKI
IPC分类号： H01J37/073
摘要： PURPOSE:To reduce electron beam size while maintaining high intensity and high efficiency by mounting an electron lens on the outside of the outlet window of an ionization chamber and by converging the electron beam emitted from the outlet window of the ionization chamber. CONSTITUTION:When a voltage of positive polarity is applied under low pressure to an anode wire 1 penetrating and arranged on an ionization chamber 2, electric discharging occurs between the wire 1 and the wall 3 of the ionization chamber 2 which is in earth electric potential, and positive ion is generated in the ionization chamber 2. The positive ion passes the extraction grid 4 arranged between the ionization chamber 2 and a high voltage chamber 6, comes into the high voltage chamber 6, and collides with a cathode 5. A secondary electron is then emitted from the surface of the cathode 5. The secondary electron is accelerated to the extraction grid 4 by the negative bias voltage applied to the cathode 5, passes the ionization chamber 2, is emitted to the electron beam converging chamber 14 of an electron lens 12, as an electron beam, is converged into a small beam size, and is emitted out of a converging electron beam outlet window 13.

98. 发明专利

JPH05299045A 失效
公开(公告)号：JPH05299045A
公开(公告)日：1993-11-12
申请号：JP10091092
申请日：1992-04-21
申请人： TOSHIBA CORP
发明人： YASUI SUKEYUKI
IPC分类号： H01J37/075 , H01J37/077
摘要： PURPOSE:To provide an electron gun having high general-purpose efficiency by which an electron beam radiating area can be adjusted easily in spite of a single device. CONSTITUTION:An electron gun is composed of an ionization chamber 3 inside which an anode wire 1 is arranged penetratingly and a high voltage chamber 5 communicated with the ionization chamber 3 through an electrically conductive extraction grid 11. In the ionization chamber 3, an exit window 10 having transmissivity to electrons is formed on the opposite side of the high voltage chamber 5. The electrically conductive extraction grid 11 of voltage approximately equal to voltage of the exit window 10 is formed in a connecting part with the high voltage chamber 5. A cathode 7 of high negative bias voltage is housed in the high voltage chamber 5 by being supported with an insulating material 8, and a voltage introducing terminal 9 is extracted outside of the high voltage chamber 5 from this cathode 7. A cylindrical insulating material 13 movable to the anode wire 1 so as to cover the anode wire is arranged in the ionization chamber 3, and an anode wire exposure part is made variable in the ionization chamber.

99. 发明专利

JPH05190937A PULSE LASER EQUIPMENT 失效
公开(公告)号：JPH05190937A
公开(公告)日：1993-07-30
申请号：JP159492
申请日：1992-01-08
申请人： TOSHIBA CORP
发明人： ISHII AKIRA , YASUOKA KOICHI , YASUI SUKEYUKI
IPC分类号： H01S3/038 , H01S3/0977
摘要： PURPOSE:To prevent fragments and charged particles, which are generated in spark discharge, from reaching a main discharge space in preliminary ionization of a pulse laser equipment. CONSTITUTION:An ultraviolet radiation transmission window 10 as an ultraviolet radiation transmission part member is arranged around the tip parts of preliminary ionization electrodes 3, 3 which are arranged so as to face each other. Said window 10 can shoot forth the ultraviolet radiation obtained by spark discharge into a main discharge space, similarly to the conventional case. Further, said window 10 is constituted so as to isolate the vicinity of the tip parts of the preliminary ionization electrodes 3, 3, which are arranged so as to face each other, from the main discharge space.

100. 发明专利

JPH05121808A PULSE LASER OSCILLATING SYSTEM 失效
公开(公告)号：JPH05121808A
公开(公告)日：1993-05-18
申请号：JP27803691
申请日：1991-10-24
申请人： TOSHIBA CORP
发明人： YASUOKA KOICHI , ISHII AKIRA , YASUI SUKEYUKI
IPC分类号： H01S3/097 , H01S3/0977
摘要： PURPOSE:To provide a pulse laser oscillating system which substantially alleviates the operating duty of a switch, and is capable of enlarging an operating region of a laser. To improve the oscillation efficiency by making it possible to effect an external control. CONSTITUTION:First capacitors 21 and second capacitors 22 are connected in series to each other between a pair of main electrodes 1 and 2 arranged opposite to each other within a container hermetically filled with a laser gas, and contact points between the capacitors are grounded. The first capacitors 21 are pulse-charged by a first power supply circuit, for example, including a high voltage power source 9, a charge resistor 8, a capacitor 5, and a switch 7. The second capacitors 22 are d.c. charged by a second power supply circuit, for example, including a high voltage power source 23 and the charge resistor 8. There are provided a first control means 28 for controlling the discharge start time of electric discharge 11 and a second control means 28 for controlling a voltage of the second power supply circuit.

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