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| Number | Title | Issue Date |
| 8022342 | Microwave source system A microwave source system 1 extracts power in a predetermined microwave frequency band out of thermal noise power generated by a resistor (3) by using filter means (4), amplifies the power through a first amplifier (5) and a second amplif... | 09/20/2011 |
| 7842907 | Microwave generator A microwave generator (10) having a hollow central electrode (12) with a front face including hollow emmission element (18), and having an outer electrode (14), which coaxially surrounds the central electrode (12) along an axially ... | 11/30/2010 |
| 7687749 | Magnetron for microwave oven It is an object to provide a magnetron for a small-sized microwave oven which takes safety standards and a noise into consideration, in a magnetron 10 for a microwave oven, a pair of choke coils 16 and 17 are provided in a filter case 11,... | 03/30/2010 |
| 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 |
| 7365291 | High voltage input apparatus for magnetron A high voltage input apparatus for a magnetron, in which first protrusions formed on lead conductors are caught by insulators and an insulating case, a ground metal is bonded to the insulating case, and expanded portions formed on the insulators are caught by the in... | 04/29/2008 |
| 7365294 | Microwave oven A microwave oven, including a transformer assembly accommodating a transformer and filled with a cooling material to cool the transformer; and a temperature-sensitive switch electrically connected to the transformer to shut off power when a temperature of a surface ... | 04/29/2008 |
| 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 |
| 7273580 | Ferromagnetic resonance excitation and its use for heating substrates that are filled with particles Process for heating a substrate, which contains, relative to the total weight of the substrate, 0.1 to 70 wt. % of metallic, magnetic, ferrimagnetic, ferromagnetic, antiferromagnetic or superparamagnetic particles having an average particle size of between 1 and 500... | 09/25/2007 |
| 7274147 | Magnetron A magnetron which generates a high-frequency energy in the Terahertz band is provided. The magnetron includes a cathode unit, which is connected to a terminal of a power source, and which selectively emits an electron according to when power is supplied; an anode bl... | 09/25/2007 |
| 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 |
| 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 |
| 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 |
| 7135820 | Vane structure of magnetron A magnetron includes semi-circularly shaped electric field adjusting grooves provided on surfaces of outer ends of vanes brought into contact with an inner surface of a positive polar body to make distribution of an electric field uniform on the surfaces of the oute... | 11/14/2006 |
| 7122773 | Magnetron for microwave ovens and method of forming same A magnetron for microwave ovens includes an anode cylinder, a plurality of plate-shaped vanes radially arranged along an inside surface of the anode cylinder, one or more strap rings to electrically connect the plurality of plate-shaped vanes to each other, an anten... | 10/17/2006 |
| 7113056 | Radial power divider/combiner A radial power divider-combiner is disclosed. The divider-combiner includes a divider and a combiner. An input signal is provided to a transmission antenna that radiates the input signal inside the divider. Within the divider, the input signal is divided into a plur... | 09/26/2006 |
| 7067782 | Magnetron A magnetron that includes a choke coil which is connected at one end to a cathode terminal and at the other end to a capacitor to form an LC circuit. The choke coil is made up of a first core type inductor, a second core type inductor and an air-core inductor, conne... | 06/27/2006 |
| 7067779 | Magnetron arrangement A magnetron arrangement has a coaxial output terminating in a probe which launches energy from the magnetron along a rectangular waveguide. The coaxial output is arranged in an endfire configuration with respect to the waveguide, giving a compact arrangement compare... | 06/27/2006 |
| 7064305 | Apparatus and method for controlling output of magnetron of microwave oven An apparatus and method for controlling an output of a magnetron of a microwave oven is provided. The method includes setting an initial input current to generate an output higher than rated output. Thereafter, the magnetron is driven using initial input current of ... | 06/20/2006 |
| 7053556 | Magnetron with a specific dimension reducing unnecessary radiation In a magnetron 41, when a radius of a flat portion 45b of a pole piece 45 is Rp, a radius of the inner circumference of a large-diameter equalizing ring 51 is Rs2, Rp≧Rs2, a radius of the outer circumference of a sm... | 05/30/2006 |
| 7042704 | High-voltage capacitor, high-voltage capacitor device and magnetron The present invention is directed to a high-voltage capacitor, high-voltage capacitor device and magnetron in which, undesirable radiation waves generated in the frequency range of 450 MHz to 1000 MHz in a magnetron are suppressed to such a level that there is no ad... | 05/09/2006 |
| 7026762 | Magnetron, and microwave oven and high-frequency heating apparatus each equipped with the same A magnetron includes a ring-shaped anode, a cathode, an activating space, at least one permanent magnet and a magnetic flux carrying unit. The ring-shaped anode forms a plurality of resonance circuits. The cathode is disposed at the axial center of the anode to emit... | 04/11/2006 |
| 6985042 | Magnetron The object to the present invention is to provide a magnetron which can reduce spurious oscillation such as the π−1 mode which presents a problem particularly in magnetrons and can reduce spurious radiations without placing filters. The magnetron of the present i... | 01/10/2006 |
| 6921889 | Magnetron and microwave oven and high frequency heating apparatus each equipped with the same A magnetron, and a microwave oven and a high frequency heating apparatus each equipped with the same use, a single permanent magnet disposed above or below an anode, a pole piece near the permanent magnet that has a magnetic flux dispersing structure, and another po... | 07/26/2005 |
| 6921890 | Low-noise, crossed-field devices such as a microwave magnetron having an azimuthally-varying axial magnetic field and microwave oven utilizing same Cost-effective, simple, low-noise, crossed-field devices such as a microwave magnetron, a microwave oven utilizing same, and crossed-field amplifier utilize an azimuthally varying, axial magnetic field. The magnetic configuration reduces and eliminates microwave and... | 07/26/2005 |
| 6914528 | Wireless communication systems, radio frequency identification devices, methods of enhancing a communications range of a radio frequency identification device, and wireless communication methods Wireless communication systems, radio frequency identification devices, methods of enhancing a communications range of a radio frequency identification device, and wireless communication methods are described. According to one aspect, a wireless communication system... | 07/05/2005 |
| 6906301 | Mounting structures for a high-frequency heating apparatus A high-frequency heating apparatus includes a magnetron (1), a magnetron holding plate (2), a waveguide (3), a heating chamber (4), and screws (5), and the magnetron (1) is attached to the magnetron holding plate (2) ... | 06/14/2005 |
| 6888117 | Combination hood and microwave oven A combination hood and microwave oven, in which the construction of a drive circuit relating to an exhaust device is simplified, reducing its manufacturing cost, and in which the number of user's manipulations required to operate the exhaust device is reduced, provi... | 05/03/2005 |
| 6872929 | Low-noise, crossed-field devices such as a microwave magnetron, microwave oven utilizing same and method of converting a noisy magnetron to a low-noise magnetron Low-noise, crossed-field devices such as a microwave magnetron, a microwave oven utilizing same, crossed-field amplifier and a method of converting a noisy magnetron to a low-noise magnetron utilize an azimuthally varying, axial magnetic field. The magnetic configur... | 03/29/2005 |
| 6867405 | Magnetron for microwave ovens A magnetron includes a positive polar cylinder, a plurality of vanes, a filament, upper and lower shields, and upper and lower pole pieces. The vanes are disposed in the positive polar cylinder to constitute a positive polar section. The filament is disposed on an a... | 03/15/2005 |
| 6858824 | Microwave heating system to provide radiation heat and domestic hot water A microwave heating system is provided which uses a heat conductive medium. The heat conductive medium is heated in a heater. The heater includes a shell which forms an enclosure. The enclosure has an upper end and a lower end. A heating coil is located in the enclo... | 02/22/2005 |
| 6787744 | Microwave device for de-icing, or keeping hollow bodies free from ice and method for the operation of the device A microwave device for de-icing and keeping areas of hollow body structures free from ice keeps atmospherically exposed leading edges and adjacent areas free of ice by means of a coolant circuit. The surface segments between the adjacent areas are kept free from ice... | 09/07/2004 |
| 6784406 | Microwave oven A microwave oven having an improved configuration of its mounting bracket to couple a magnetron to a waveguide, to reduce the number of operations to couple the magnetron to a waveguide, and which is stable in a fixed state of the mounting bracket to obtain a more e... | 08/31/2004 |
| 6759639 | Magnetron for microwave ovens A magnetron for use in, for example, microwave ovens, includes a positive polar cylinder, a plurality of vanes, and large-diameter and small-diameter strip rings. The vanes constitute a positive polar section, along with the positive polar cylinder. The large-diamet... | 07/06/2004 |
| 6717122 | Wall-mounted microwave oven and structure for removing magnetron A wall-mounted microwave oven includes a body partitioned into a cooking cavity and a machine room, a magnetron detachably installed in the machine room, and a control panel detachably mounted on the body in front of the machine room. The magnetron is mounted on a b... | 04/06/2004 |
| 6649892 | Microwave oven system In a microwave oven system comprising at least one magnetron of a given operating frequency and a mains unit for the at least one magnetron, the at least one magnetron of a given operating frequency is replaceable by a magnetron of another operating frequ... | 11/18/2003 |
| 6642490 | Compact millimeterwave system for De-icing and for preventing the formation of ice on the outer surfaces of shell structures exposed to meterological influences In a millimeter wave de-icing system for the front areas of exposed shell structures, at least one independently operable millimeter wave generator is disposed in each shell structure closely adjacent the surfaces of the shell structure to be de-iced or k... | 11/04/2003 |
| 6630654 | Microwave heating apparatus Microwave heating apparatus comprising a dielectric microwave applicator provided with a microwave coupling device adapted to feed microwave energy to the applicator. The applicator is provided with a load chamber 8 extending coaxially with regard to the ... | 10/07/2003 |
