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JP3267567 |
To improve economy, workability and maintainability by providing an anode part applied voltage switching circuit for switching dc voltage to be applied to an anode part of a microwave tube wall and a microwave tube to voltage higher than...
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JP3266771 |
To provide slow-wave structure capable of increasing the heat radiation efficiency without causing unevenness on the heat conduction from a slow- wave serving as a heat source. This circuit is constituted of a vacuum container, a slow-wa...
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JP3268237 |
To enhance a repetitive frequency to take out an electron beam, and make it suitable for taking out an electron beam of high energy by embedding passages making a refrigerant flow to forcedly cool a conductive vessel in a wall of the con...
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JP2001357790 |
To avoid operation stop without requiring a crowbar circuit malfunctioning even at a normal operation to improve efficiency.An anode resistance 10 having a resistance RA which satisfies the relations, VA/IA
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JP3261726 |
PURPOSE: To facilitate the adjustment in the higher harmonic wave band and improve the low-noise performance by forming a resonance cavity, and forming the circular bottom face section of a choke blocking the specific high harmonic waves...
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JP2001351830 |
To provide a high-voltage lead-through capacitor which is equipped with an insulating case low in height and excellent in withstand voltage performance including humidification withstand voltage performance.Through conductors 4 and 5 pen...
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JP3258224 |
To eliminate the need for control that uses a compensating current and to enable a set magnetic field strength to be maintained by providing a magnetic field circuit that utilizes permanent magnets. In a gyrotron magnetic field generator...
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JP3258059 |
PURPOSE: To provide an economical and inexpensive klystron device where a collecting magnetic field device is reduced in size and weight. CONSTITUTION: A klystron device is provided with an electron gun unit 1; a high frequency operating...
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JP2001338585 |
To provide a method of manufacturing a magnetron, which can prevent the displacement of an output conductor and improve productivity, and additionally, can reduce the cost for production equipment and its maintenance.In a method of manuf...
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JP2001338584 |
To provide a magnetron in which magnetic flux leakage to the outer circumferential side of an annular magnet can be reduced, and magnetic flux can be efficiently concentrated on an action space between magnetic pole pieces, and additiona...
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JP3258060 |
PURPOSE: To prevent distortion of a waveform in operation of power so as to obtain a normal microwave output by interposing a resistance element between a slow-wave circuit unit and a collector electrode, and setting AC resistance within...
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JP2001338586 |
To suppress parasitic oscillation and improve conversion efficiency of a mode converter that converts higher mode millimeter waves, generated in a resonance cavity of a gyrotron and propagating within a circular waveguide, into an electr...
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JP2001332180 |
To provide an easy-to-produce magnetron capable of keeping the characteristics of a cavity resonator as desired which changes when miniaturized with the smaller diameter of a cylindrical anode.The magnetron comprises adjacent vanes 2a pr...
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JP2001319585 |
To stabilize a frequency and prevent a loss of power.A magnetron has a power output equipped with a coaxial line 15, transmits an energy from a desired oscillator mode as the first coaxial wave guide mode, and an energy from an undesired...
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JP3248619 |
To obtain a highly reliable high-voltage feed through capacitor capable of suppressing the occurrence of gaps, cracks or the like at an interface between a ground metal fitting and an insulating cover. A capacitor 2 is comprised of a die...
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JP3243592 |
PURPOSE: To provide a member loading device for members with fragility, which is excellent in manufacturing efficiency, hard to produce a detective, and making a burden of fatigue etc., of an operator reducible. CONSTITUTION: This is a d...
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JP3242819 |
To provide a flat magnetron which can be driven at low voltages while the number of drive power sources required for operating is reduced. A plurality of vanes 20 are formed on a flat anode 19 and perpendicular to a field-emission cold c...
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JP2001283744 |
To provide a magnetron apparatus capable of improving oscillation efficiency. The magnetron apparatus is provided with a vacuum tube part 1 having a negative electrode filament 20 in a cylindrical positive electrode 11, and magnets 22a, ...
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JP2001271164 |
To provide a mechanism which increases the flow of a cooling fluid passing through an inner portion of a rotatory part of a magnetron. A vacuum treatment system having a treatment chamber and a rotatory chamber like the magnetron of a PV...
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JP3232529 |
PURPOSE: To obtain an Fe-Ni alloy for lead frame showing superior plating suitability and solder-wettability even if activation pretreatment is omitted. CONSTITUTION: This alloy is an Fe-Ni alloy which contains, by weight, ≤0.05% C, â‰...
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JP3231124 |
PURPOSE: To increase the voltage stability of a high-voltage charged heater in a power supply unit for a traveling-wave tube. CONSTITUTION: The primary winding 5a of a transformer 5 is connected to a field effect transistor 7 on-off-driv...
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JP2001243887 |
To provide a magnetron wherein lowering of oscillation by efficiency magnet temperature increase is prevented and a nearly constant oscillation efficiency can be obtained.A leakage transformer used in a microwave oven attempts to keep in...
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JP2001236918 |
To reduce power loss at a dummy resistor by providing it so as to be in parallel to a load in a power supply circuit in order to improve response of output voltage control in a d.c. power supply unit for an ion source or a HF electron tu...
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JP2001229840 |
To provide a pulse-magnetron device capable of restraining the output of unwanted microwave components and of outputting a clean pulse-microwave, by means of a comparatively simple configuration.The pulse-magnetron device comprises the p...
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JP2001230067 |
To effectively suppress the spurious radiation wave which is going to leak outside of the shield case of the input portion of magnetron.The leakage control device comprises a shield case 6 with a metallic lid which surrounds an input por...
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JP2001220162 |
To provide a method and device for cooling a glass panel for a cathode ray tube be which deformation of the glass panel can be suppressed and cooling can be efficiently executed.In the method for cooling the glass panel for the cathode r...
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JP3219517 |
PURPOSE: To provide an anode body structure for magnetron which can reduce the standard wave band scope width, and can reduce the radiation amount of a side band. CONSTITUTION: Grooves 3a and 3b are formed to anode vanes 2 of an even num...
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JP3219516 |
PURPOSE: To obtain a cathode body structure for magnetron which can make not only expensive lead wires shorter, but also the assembly of the cathode body structure easier, and is suitable for automatic assembly. CONSTITUTION: External te...
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JP3216374 |
PURPOSE: To provide a small sized magnetron device having high performance by simplifying a constitution. CONSTITUTION: In a conductive filter case 1 enveloping a stem 6 having a choke coil 17b and stem terminal 16b, a dielectric 12 and ...
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JP3216398 |
PURPOSE: To provide a magnetron device in which productivity is increased and short circuit between a damping electrode and a capacitor is prevented to enhance reliability. CONSTITUTION: An insulating stem 4 having cathode terminals 3a, ...
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JP2001202895 |
To provide a magnetron which can reduce a thickness of cylinder for constituting an anode while improving heat resistance, and increase thermal stability and a lifetime and reduce the cost of production. This magnetron is of cylinder sha...
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JP3214670 |
To provide an electron gun which is capable of taking out an electrode of the electron gun in the axial direction of the electron gun, and simple in structure. An electron gun for microwave tube to be connected to a high frequency part w...
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JP2001195993 |
To provide a magnetron which can maintain a cavity resonance property as in prior arts, the cavity resonance property may be changed in the case the size is reduced by reducing a diameter of a cylinder shaped anode body. This magnetron i...
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JP2001196808 |
To reliably suppress so-called second harmonic spurious to a low level. Inside of the neighborhood of the first port to which the transmission part of a circulator 104 is connected, reactance elements 10a and 10b are arranged at a prescr...
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JP2001195992 |
To provide a klystron device having a good operation property in the case that permanent magnets are not arranged among a part of pole pieces. This klystron device comprises an electron gun part 11 for generating an electron beam e, a pl...
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JP2001189222 |
To simplify manufacturing at reduced cost and prevent easy breakdown caused by shock in transportation and temperature changes in service, by reducing the kinds of constituent components. A transformer 9 is constituted of cores 16, 17, w...
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JP2001185041 |
To provide an inexpensive klystron power supply device of a low cost and a high operation efficiency without a request of clover circuit, by making the circuit constitution for preventing a short circuit of the klystron. This device incl...
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JP3204809 |
PURPOSE: To provide a method for manufacturing an impregnated cathode structure body having stable and satisfactory electron emitting characteristic from the initial stage of operation in which an extremely uniform pore part can be provi...
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JP3204821 |
PURPOSE: To provide a matrix type cathode body structure having a sufficient adhesive strength to a cathode sleeve, a required form and a satisfactory dimension by preliminarily sintering a matrix material with a filling sintering jig ad...
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JP2001176408 |
To provide an electron tube such as klystron, X-ray tube and the like which have high efficiency.In this electron tube that enables an electron beam produced between a cathode and an anode to have a collector electrode for capturing elec...
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JP2001167692 |
To provide an improved process of manufacturing an emitter structure from nano wires.In an embodiment, at least partially coated nanowires other than magnetic materials are provided. The nanowires have an average length of about 0.1 μm ...
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JP2001155650 |
To provide an output coupler for coupling a waveguide with a travel ing wave tube capable of increasing the diameter of an opening for passing an electron beam with less heat resistance.A traveling wave tube system with output end couple...
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JP2001155651 |
To provide a magnetron for microwave oven, which prevents discharge in the high frequency output or the like.A metallic cylinder 21 for enclosing an antenna lead 28 is placed between cylinder type metallic instrument 19 and cylinder type...
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JP3193976 |
To lengthen life and enhance voltage resistance characteristics by forming a high voltage-resistance layer between an insulating layer outer circumferential layer in the vicinity of the end part of a conductive layer formed in at least a...
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JP2001148224 |
To provide a magnetron for a microwave oven with a good quality and provide its manufacturing method. In a magnetron for a microwave oven that is equipped with an anode cylinder 12, a filament cathode 13 placed in this anode cylinder 12,...
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JP2001148284 |
To provide a relatively small inexpensive microwave generator to produce large power microwave. In this microwave generator to produce microwave by the excitation of magnetron tubes 49u-49w, using input of three-phase current voltage, po...
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JP3193647 |
To optimize a resonance structure by changing the number and height of vanes, the outer dia. of a cathode and the dia. of operation space. This magnetron comprises a resonance part equipped with a plurality of vanes 41 radially mounted o...
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JP2001143627 |
To provide a magnetron noise filter and the method for forming the same, which can remove a noise of a high frequency band. The magnetron noise filter comprises a shield box 100 integrated in one side of a magnetron, penetration-type cap...
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JP3191069 |
PURPOSE: To obtain a structure to reduce the sinking of the first metal tube to the first magnetic pole piece generated in an assembly process, in a magnetron in which the diameter of the first metal tube is smaller than the diameter of ...
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JP2001143628 |
To obtain a power source for a progressive wave tube by adding a function for increasing a dielectric strength to a conventional electric source for a progressive wave tube. A cathode condition supervisory circuit 22 monitors a working c...
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