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| Number | Title | Issue Date |
| 8164265 | Lighting method of microwave excitation discharge lamp To prevent the continuation of the abnormal state occurring immediately after the lighting start of the electrodeless discharge lamp excited by a DC driven magnetron and to recover promptly from the abnormal state at the steady state period. Lighting start of an ele... | 04/24/2012 |
| 8159137 | Magnetron To provide a magnetron capable of reducing noises in a low frequency band of 30 MHz or less without deteriorating the stability of a load depending on phases, and also ensuring the precision of assembly dimensions without increasing the number of components, a coile... | 04/17/2012 |
| 8120258 | Magnetron The present invention provides a magnetron which can conduct more magnetic flux in the active space at the periphery of a cathode structure to thereby further improve the efficiency of a magnetic circuit. The magnetron of the present invention includes an anode cyli... | 02/21/2012 |
| 8018159 | Magnetron device with mode converter and related methods The present invention provides a relativistic magnetron with axial extraction, or magnetron with diffraction output (MDO), with a mode converter placed directly within the diffraction output of radiation to effectively convert the operating π-mode into a radiated m... | 09/13/2011 |
| 7952289 | UV lamp system and associated method with improved magnetron control An ultraviolet lamp system for irradiating a substrate includes a magnetron and a memory physically attached to the magnetron. An electrodeless lamp is configured to emit ultraviolet light when excited by microwave energy generated from the magnetron. Main control c... | 05/31/2011 |
| 7919924 | Magnetron and method of manufacturing magnetron anode vane In each anode vane 10, there is provided the brazing material spreading prevention groove 13 that interconnects the strap ring inserting portions 11 and 12 in parallel to the direction of the central axis Ax. With such a configuration, it... | 04/05/2011 |
| 7915827 | Magnetron control method, magnetron service life judgment method, microwave generation device, magnetron service life judgment device, processing device, computer program, and storage medium A microwave generation device includes: a magnetron having a cathode containing a filament and an anode containing a hollow resonator arranged to oppose to each other; a filament current measuring unit; and an application voltage measuring unit for measuring voltage... | 03/29/2011 |
| 7906912 | Magnetron The magnetron includes: a cylindrical-shaped anode barrel member 10 having two openings respectively formed in the two end portions thereof; a cathode structure member 12 disposed on the center axis of the anode barrel member 10; more than one a... | 03/15/2011 |
| 7893621 | Eggbeater transparent cathode for magnetrons and ubitrons and related methods of generating high power microwaves An “eggbeater” cathode comprising a transparent cathode including a plurality of longitudinally oriented cathode strips anchored at both ends between support discs and forming an open-walled hollow cylindrical structure. A cathode base is disposed substantially ... | 02/22/2011 |
| 7741783 | Microwave generator A microwave generator has at least one resonator with two mutually opposite resonator electrodes which are separated by a spark gap. The spark gap breaks down when a high-voltage is applied. The resonator electrodes are designed in the area of the spark gap such tha... | 06/22/2010 |
| 7696696 | Magnetron having a transparent cathode and related methods of generating high power microwaves A cathode for use in a magnetron may include a plurality of longitudinally oriented emitter regions disposed around a longitudinal axis of the cathode. Each emitter region may be configured to emit electrons and adjacent emitter regions may be separated from one ano... | 04/13/2010 |
| 7696697 | Magnetron In the magnetron, an upper end hat 122A is used as a composing element of a cathode structure member 12A and includes a portion 122Aa which is in contact with one end portion 121a of a filament coil 121. The thickness of the... | 04/13/2010 |
| 7609001 | Optical magnetron for high efficiency production of optical radiation and related methods of use An electromagnetic radiation source is disclosed that produces a single mode operation at a desired operating frequency. The electromagnetic radiation source is included in a wide variety of applications including a wireless power transmission system, a system for p... | 10/27/2009 |
| 7548026 | Magnetron For an anode assembly 51 of a magnetron, a plurality of plate shaped vanes 54 radially arranged at an inner circumference of the roughly round shaped anode assembly 53 has a end portion arranged at a central axis of the anode assembly 53 ... | 06/16/2009 |
| 7471045 | Microwave generator A microwave generator comprises a magnetron having an anode and a cathode, oscillating by the current supplied to the anode, and generating a microwave, electric-field controlling means for controlling one of the frequency/phase and the amplitude of the microwave by... | 12/30/2008 |
| 7436177 | SEM test apparatus Test apparatus for examining the operation and functioning of ultra-small resonant structures, and specifically using an SEM as the testing device and its electron beam as an exciting source of charged particles to cause the ultra-small resonant structures to resona... | 10/14/2008 |
| 7432484 | Current control for high-frequency heating apparatus The invention relates to a high frequency heating apparatus and provides a tracking method of a frequency modulation in order to prevent an extension of the harmonic current component of an oscillation threshold ebm which varies from moment to moment in accordance w... | 10/07/2008 |
| 7405382 | System for microwave enhanced chemistry According to the present invention, a microwave generator includes a variable voltage provided from a first transformer to a second transformer having a secondary winding split into a filament winding cathode low AC signal and a secondary winding providing a high vo... | 07/29/2008 |
| 7375470 | Magnetron Disclosed herein is a magnetron. The magnetron comprises an anode cylinder, upper and lower magnets provided to upper and lower portions of the anode cylinder, and upper and lower magnetic poles connected to the magnets, respectively. Each of the magnets has an inne... | 05/20/2008 |
| 7339146 | Low cost microwave over components manufactured from conductively doped resin-based materials Microwave oven components are formed of a conductively doped resin-based material. The conductively doped resin-based material comprises micron conductive powder(s), conductive fiber(s), or a combination of conductive powder and conductive fibers in a base resin hos... | 03/04/2008 |
| 7327088 | Magnetron In a magnetron having a body 1 defining an anode 2 divided into resonant cavities 4 by vanes 3 and having a coaxial cathode 5, r.f. energy produced when a magnetic field is applied parallel to the axis of the anode is launched alon... | 02/05/2008 |
| 7291985 | External resonator/cavity electrode-less plasma lamp and method of exciting with radio-frequency energy Described is a plasma electrode-less lamp. The device comprises an electromagnetic resonator and an electromagnetic radiation source conductively connected with the electromagnetic resonator. The device further comprises a pair of field probes, the field probes cond... | 11/06/2007 |
| 7282682 | High-frequency heating apparatus A purpose of the present invention is to provide an inverter circuit capable of firmly turning ON IGBTs under limited condition, while a heat loss and noise can be hardly produced in semiconductor switching elements. In a resonant type high frequency heating ... | 10/16/2007 |
| 7276860 | Electrodeless lighting system An electrodeless lighting system includes: a resonator which is installed at an exit of a wave guide for guiding microwave generated from a magnetron and making light pass and microwave resonate therein; a bulb positioned in the resonator and having a luminous porti... | 10/02/2007 |
| 7265360 | Magnetron anode design for short wavelength operation An electromagnetic radiation source is disclosed. The electromagnetic radiation source includes an anode having a first conductor, a second conductor positioned relative to the first conductor, a plurality of pole pieces coupled to at least one of the first conducto... | 09/04/2007 |
| 7257327 | Wireless communication system with high efficiency/high power optical source An optical communication system is provided which includes an optical signal transmitter which communicates high bandwidth, high power frequencies. The optical signal transmitter includes a high efficiency/high power optical source such as an optical magnetron or a ... | 08/14/2007 |
| 7245082 | Mode seeding cathode for a relativistic magnetron A high-power relativistic magnetron wherein the cathode geometry is shaped to form a DC electric field that has a non-negligible azimuthal component causing preferential selection of the pi mode at startup (suppression of mode competition), a significant increase in... | 07/17/2007 |
| 7235929 | Magnetron A magnetron 10 is equipped with a helical filament 39, as an element of a cathode assembly, arranged on a central axis of an anode cylindrical body 13. Assuming that a resistance value of the filament 39 before forming the carbonized laye... | 06/26/2007 |
| 7220949 | Capacitor of magnetron Disclosed herein is a capacitor for a magnetron. The capacitor has dielectric members, which have a converging angle of less than 180° defined between lines extending from both sides of each dielectric member formed between corresponding ends of inner and outer ele... | 05/22/2007 |
| 7208878 | Method of manufacturing a rotation-magnetron-in-magnetron (RMIM) electrode An RMIM electrode, a method for manufacturing the RMIM electrode, and a sputtering apparatus using the RMIM electrode, wherein the RMIM electrode includes a magnet unit including a cylinder-shaped magnet located at a center of the magnet unit and a plurality of ring... | 04/24/2007 |
| 7199524 | Magnetron arrangements A magnetron output arrangement includes a coaxial output adapted to be coupled in an endfire configuration to a rectangular waveguide. The waveguide has a flange for mating with the magnetron output arrangement. The coaxial output includes a central conductor. The o... | 04/03/2007 |
| 7199341 | High-frequency heating apparatus A high-frequency heating apparatus comprises a heating chamber, a high-frequency generator, a waveguide, an antenna, a motor for rotating the antenna, and a stage (6) provided above and near the antenna to partition the heating chamber and made of dielectric.... | 04/03/2007 |
| 7196474 | Electrodeless lighting apparatus An electrodeless lighting apparatus includes: a waveguide for guiding microwave energy generated from a microwave generator; a resonance unit coupled with an outlet of the waveguide and comprising at least two resonators having mesh structures which are slidingly co... | 03/27/2007 |
| 7187131 | Discharge lamp with internal starting electrode An arc discharge light source (10) for automotive headlight applications comprises an arc tube (12) having a hollow body (14) arrayed along a longitudinal axis (16) and provided with first and second ends (18, 20). The first and se... | 03/06/2007 |
| 7180296 | Magnetic resonance imaging receive circuit A magnetic resonance imaging receive circuit, for use e.g. within the body of a patient during an MR imaging procedure, includes a balanced MR coil (50) connected to balanced matching and decoupling circuitry (110, 120). Signal transfer passes along tw... | 02/20/2007 |
| 7164234 | High-power microwave system employing a phase-locked array of inexpensive commercial magnetrons A high-power microwave generator employing a plurality of inexpensive commercial magnetron tubes cross-coupled by means of a secondary coupling path between each magnetron output pair, whereby a portion of the output energy from a first magnetron tube is injected in... | 01/16/2007 |
| 7161304 | Electrodeless lighting system Disclosed is an electrodeless lighting system capable of being used as an optical source of an electronic device by being minimized and capable of obtaining an optimum impedance matching and controlling a resonance frequency. The electrodeless lighting system compri... | 01/09/2007 |
| 7148456 | Method and apparatus for microwave phosphor synthesis A method of microwave synthesis of phosphors includes a microwave furnace having a microwave chamber; providing starting material in the microwave chamber; and subjecting the starting material to microwaves, whereby the starting material is synthesized into phosphor... | 12/12/2006 |
| 7148627 | Magnetron A magnetron is configured so that an antenna lead 17 connected to a desired position of an anode segment 2 passes through a magnetic pole piece 7 and a metal cylinder 8 so as not to make contact therewith and is connected to the output po... | 12/12/2006 |
| 7138614 | Non-contact feeder system A non-contact feeder system to supply an induced current to an electrical load includes at least three feeding cables arranged approximately parallel with one another along a moving direction of the electrical load; a plurality of AC power supplies to supply AC curr... | 11/21/2006 |
