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JP2006127899 |
To provide an electron gun with little individual difference due to variation in manufacture, and with good electron emission property.An electron gun is provided with a cathode pellet discharging electrons, a heater cap integrating a he...
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JP2006127767 |
To provide a microwave oscillation element having a structure not influencing a pulse characteristic even in executing a pulse operation while efficiently absorbing microwaves leaking from an input part.This microwave oscillation element...
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JP3803258 |
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 pe...
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JP3799385 |
To provide a gyrotron device which enables widening of its frequency band by raising cooling efficiency. A vacuum window 14 for high-frequency is provided with a window base plate 23 which is made of synthetic diamond. Thin coatings 24 o...
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JP2006100066 |
To provide a magnetron having a structure capable of adjusting an oscillation frequency with an inexpensive structure, hard to cause discharge etc. and capable of stable oscillation without using expensive parts such as a diaphragm and b...
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JP2006093041 |
To provide a microwave tube having stabilized amplifying operation while damping monotron oscillation generated in an electron gun 12.The electron gun 12 has a cathode 21 for releasing electron beams, a focusing electrode 22 for focusing...
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JP2006094214 |
To provide a magnetron oscillator which has satisfactory frequency stability, and does not vary in frequency even if its output power is changed.This oscillator is provided with a magnetron 2, a launcher 4 for taking the output power of ...
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JP2006073519 |
To provide a cooling fin of a magnetron for improving cooling performance by a structure improved so that a heat transfer area is further increased to promote heat transfer.A magnetron cooling fin 200 has a large number of turbulence pro...
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JP3776464 |
PURPOSE: To provide an electron emission member taking place of a thorium tungsten wire, having no radioactive element used therein and maintaining stable electron emission for a long time under any condition, and an electron tube cathod...
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JP2006049121 |
To obtain a magnetron which can suppress cost increase to a minimum, while achieving reduction of line noises.A plurality of positive electrode vanes 10 have a shape of each of the top end portion facing the negative electrode 3 in which...
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JP2006049120 |
To obtain a magnetron capable of reducing noise throughout the whole band of a microwave oscillation signal and also capable of improving load stability.Metallic cylindrical bodies 51 and 52 are installed which cover surroundings of both...
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JP2006049119 |
To obtain a magnetron capable of reducing not only line noises in the band of 100 kHz-200 MHz, but also space wave noises throughout a wide band of 1 GHz or less.The magnetron has a metallic cylindrical body 13 installed along the axial ...
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JP2006040576 |
To provide a magnetron capable of suppressing magnetic loss by tightly fitting a permanent magnet to a yoke and of preventing dispersion and degradation of a positive electrode voltage value in rated oscillation.This magnetron 100 is so ...
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JP2006040574 |
To obtain a liquid cooling type magnetron safely carrying out a continuous operation through prevention of short-circuit accidents caused by leakage of cooling liquid inside a power source part case.The magnetron 11 arranged inside the p...
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JP2006040573 |
To obtain a magnetron with elongated life capable of continuous use.The cold cathode type magnetron is provided with a cathode 20 structured by alternately arranging a first electrode 21 with graphite nano-fiber as one of the carbon fibe...
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JP3759122 |
To provide a magnetron for microwave oven of which total length is reduced by reducing the height of a filter box constructing the magnetron. The magnetron is made to include a second insulation body forming an electrically extended insu...
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JP2005353332 |
To provide a magnetron with a structure capable of maintaining a stable oscillation characteristic to the temperature change of the magnetron without providing a large-scale heat dissipation structure.A cathode 2 is provided at the cente...
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JP2005353351 |
To suppress the spurious of a magnetron by carrying out a design method such as a rising sun method and the attachment of a filter.In this spurious suppression device 18 of a magnetron 1, a first output is extracted from a positive elect...
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JP3754033 |
To facilitate maintenance and operation of a gyrotron device, to miniaturize an exciting power source for an electromagnetic and to extremely reduce running cost by increasing oscillation efficiency. The gyrotron device, which comprises ...
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JP3753325 |
To provide an LC filter for a microwave oven which can reduce noises in wide-ranged high frequency band of 300 to 1000 MNz, a choke coil constituting the LC filter, and a magnetron for microwave oven using these. The choke coil includes ...
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JP3751967 |
To provide a magnetron oscillator which has satisfactory frequency stability, and does not vary in frequency even if its output power is changed. This oscillator is provided with a magnetron 2, a launcher 4 for taking the output power of...
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JP2005339892 |
To provide a small/thin traveling-wave tube capable of reducing the weight and cost of an array antenna.Multiple-stage iris coupling is formed in a waveguide of an output circuit 123 to provide functions of a band-pass filter and a band-...
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JP2005328217 |
To provide an electromagnetic wave oscillator which oscillates a high-frequency and high-output electromagnetic wave, copes with a further higher frequency, and is miniaturized.The electromagnetic wave oscillator 1 has a corrugate metal ...
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JP3738734 |
To provide a means capable of suppressing energy contamination and of shortening a transportation distance of the charged particles. An electrostatic accelerating tube 20 comprises first to fifth electrodes 21-25 arranged in the moving d...
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JP3738261 |
To provide a magnetron preventing a conductive gasket from falling off. This magnetron is provided with a microwave output part wherein an output antenna 19 is extended in a direction of a tube axis m in an inner space of a vacuum contai...
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JP2005310686 |
To provide a magnetron of a structure with frequency bandwidth it occupies suppressed to a minimum, by restraining fluctuation of oscillating frequencies even if environment temperature in use is fluctuated.A plurality of vanes 12 are ar...
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JP3732729 |
To realize a magnetron of a high output as well as a low output by improving strap for the magnetron to prevent deformation and breakage for thermal stress as well as structural deviation from surrounding members in advance. Magnetron of...
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JP2005293993 |
To provide a magnetron power supply device capable of making an electron temperature of plasma lower, and yet maintaining high plasma density.This magnetron oscillation device is provided with an anode power supply 2 forming an electric ...
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JP2005276641 |
To provide a manufacturing method of matrix materials as well as a matrix type cathode structure and its manufacturing method in order that deterioration of mechanical strength of the matrix type cathode structure is suppressed and a pre...
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JP2005259508 |
To provide a magnetron for microwave oven which can suppress unnecessary noises, especially the 6th higher-harmonic wave and 7th higher-harmonic wave.The magnetron for microwave oven is equipped with a cathode 12 located inside an anode ...
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JP3721111 |
To provide a gyrotron device in which heating of the ion pump by diffraction wave is prevented and a prescribed exhaust-air conductance can be steadily obtained. The ion pump 12 of the gyrotron device is installed on the waveguide 11 thr...
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JP3720913 |
To provide a superior characteristic impregnating cathode ray structure having ion bombardment resistance by providing a large-grain-size, low- void-ratio range which has specific values for mean grain size, porosity and contains an elec...
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JP2005251634 |
To provide a magnetron having a construction which can regulate oscillation frequency with a low cost structure without usage of expensive components such as a diaphragm, a bellows and so on, and hardly causes electric discharge or the l...
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JP3718321 |
To provide an end hat component in which a ring-shaped brazing filler material is previously fastened to the inside of an end hat, with which the man-hours for the manufacture is reduced and also it is possible to suppress the generating...
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JP2005228628 |
To solve a problem wherein effect of efficiency improvement of a microwave tube that is enhanced by making the electric potential of a collector lower than that of an interaction part, is limited due to existence of some electrons that a...
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JP2005222908 |
To provide a magnetron which sufficiently reduces an unnecessary radiation, and simultaneously prevents the degradation of oscillation efficiency.In the magnetron 41, let Rp be the radius of the plane part 45b of a magnetic pole segment ...
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JP3708915 |
To shorten the time for impedance matching and microwave matching and to supply stable microwaves in a microwave matching apparatus. A rotational movement of a motor 1 is converted to a linear movement by a reciprocating reel mechanism c...
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JP3707932 |
To provide a high frequency electron gun having a multistage accelerating cavity capable of extending the life of an electron source to be stably operable, easy to design and more inexpensive. In this high frequency electron gun having a...
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JP2005217296 |
To provide a high-voltage feed-through capacitor, a high-voltage feed-through capacitor device, and a magnetron wherein the capacitor and the capacitor device can so suppress the level of the unnecessary radiating wave generated from the...
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JP2005216602 |
To provide a magnetron drive power supply device capable of effectively cooling components such as a high-voltage transformer, a heat radiation plate, a power element and a high-voltage diode.A cross-sectionally U-shaped air guide 3 is m...
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JP2005209539 |
To provide a magnetron in which fluctuations in the electric properties and mechanical strength of a filament are small, fluctuations of life as a magnetron are small, and quality as the magnetron is stabilized.In the magnetron 10 in whi...
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JP2005209426 |
To provide a small magnetron capable of providing high cooling capacity.By closely disposing a cooling block 45 having two systems such as upper-tier side passage 45U (ducts 45a, 45b and 45c) for running a cooling medium in the axis dire...
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JP2005197160 |
To provide a magnetron preventing a conductive gasket from falling off.This magnetron is provided with a microwave output part wherein an output antenna 19 is extended in a direction of a tube axis m in an inner space of a vacuum contain...
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JP2005197224 |
To provide a high voltage input terminal for a magnetron capable of suppressing arbitrary removement of a lead conductor, being assembled easily and firmly, and suppressing leakage of high frequency generated during operation of the magn...
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JP2005197166 |
To provide a magnetron capable of suppressing a capacitance component Cr of a cavity resonator to a low level and achieving improvements in both of operational stability and efficiency.An anode structure 51 of the magnetron comprises a p...
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JP2005197219 |
To provide a high voltage capacitor for a magnetron that is simple in inner structure and assembly process.A pair of dielectric ceramic members are formed in a shape of arch, and disposed separated from each other. Each of the dielectric...
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JP3694568 |
To provide a structure by which a loss of a magnetic circuit is reduced and whose structure is simple and which has high reliability to vacuum leakage by arranging an anode insulator to integrally insulate an anode and a magnetic field p...
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JP3690662 |
To provide a high-voltage feed-through capacitor not to be burnt, even if continuous sparks are generated by application of overvoltage. The capacitor 2 is provided with electrodes 214-215 on both surfaces, where through-holes 211 and 21...
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JP2005158276 |
To provide a magnetron of such a structure that fluctuations of an oscillation frequency can be suppressed small, and in which occupying frequency range can be suppressed minimum even if environmental temperatures or the like are fluctua...
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JP2005151636 |
To provide a high power circuit which can prevent the damage or the performance deterioration of a device being the target of voltage application by shortening the rise time of power voltage at power ON.This power circuit has a voltage d...
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