| Entries |
| Document | Title | Date |
|---|
| 20100155393 | POWER CONTROL UNIT FOR HIGH-FREQUENCY DIELECTRIC HEATING AND CONTROL METHOD THEREOF - A power control unit for a high-frequency dielectric heating not affected by variations in the magnetron type or characteristic, and power supply voltage fluctuation, etc., is provided. The power control unit for a high-frequency dielectric heating has an input current detection section | 06-24-2010 |
| 20100155395 | POWER CONTROL UNIT FOR HIGH-FREQUENCY DIELECTRIC HEATING AND CONTROL METHOD THEREOF - A power control unit for a high-frequency dielectric heating not affected by variations in the magnetron type or characteristic, and power supply voltage fluctuation, etc., is provided. The power control unit for a high-frequency dielectric heating has an input current detection section | 06-24-2010 |
| 20130075389 | MICROWAVE PROCESSING APPARATUS AND METHOD FOR PROCESSING OBJECT TO BE PROCESSED - A microwave processing apparatus includes a processing chamber which accommodates an object; a microwave introducing unit for generating microwaves used to process the object and introducing the microwaves into the processing chamber; and a control unit for controlling the microwave introducing unit. The microwave introducing unit includes microwave sources to generate the microwaves and introduces parts of the microwaves into the processing chamber simultaneously, and the control unit controls the microwave sources such that arbitrary combinations of the microwave sources alternately repeat a simultaneous microwave generating state and a microwave non-generating state during a state of processing the object. | 03-28-2013 |
| 20130075390 | MICROWAVE PROCESSING APPARATUS AND METHOD FOR PROCESSING OBJECT TO BE PROCESSED - A microwave processing apparatus includes a processing chamber which accommodates an object to be processed, and a microwave introducing unit which has at least one microwave source to generate a microwave used to process the object and introduces the microwave into the processing chamber. The microwave processing apparatus further includes a control unit which controls the microwave introducing unit. Furthermore, the control unit changes a frequency of the microwave during a state of processing the object. | 03-28-2013 |
| 20080257881 | High-Frequency Heating Device - The high-frequency heating device, the subject of the present invention, is driven by an inverter and, by reducing the power losses in the mentioned inverter the operating efficiency is increased. | 10-23-2008 |
| 20100163556 | HIGH-FREQUENCY HEATING APPARATUS - An object of the invention is to detect the temperature of food and offer a good finish of cooking even in case a steam generator is arranged in a heating chamber. | 07-01-2010 |
| 20100006564 | ELECTROMAGNETIC HEATING - An electromagnetic heater for heating an irregularly shaped object, including:
| 01-14-2010 |
| 20130056459 | MICROWAVE OVEN - A microwave oven capable of quickly detecting the abnormal operation and the overheated temperature of a high voltage transformer. The microwave oven including cooking chamber, a magnetron configured to provide a high frequency wave to inside of the cooking chamber, a high voltage transformer (HVT) including a core, a primary coil wound around the core, and a secondary coil wound around the core and configured to transform a voltage, which is provided to the microwave oven, to the magnetron, and a Thermo Protector (TP) configured to block a current from being applied to the primary coil when the HVT is overheated, wherein the TP is disposed at an outer surface of the secondary coil. | 03-07-2013 |
| 20090255926 | METHOD AND APPARATUS FOR RAPID THERMAL PROCESSING AND BONDING OF MATERIALS USING RF AND MICROWAVES - A method and apparatus for rapid and selective heating of materials using variable frequency RF and microwaves. The apparatus uses variable frequency solid state electronics as a microwave power source, a novel microwave heating head to couple microwave energy to the target materials and a match-up network to tune the frequency and impedance match between the microwave source and the load. An electronic and computer measurement and control system is employed to monitor and control the microwave heating process. The method teaches the use of inductive microwave coupling for thin conductive materials such as metal film and impurity doped silicon wafers. The method also teaches the use of capacitive microwave coupling for dielectric material such as glass and ceramics. The method further teaches the use of rapid and selective heating of heterostructure for bonding and sealing of mems and integrated circuits. The method and apparatus can provide ultra-high heating speed along with ultra-high heating temperatures for rapid thermal processing of semiconductors and other materials. It also allows the use of bonding materials with high melting temperature for strong bonding and sealing of mems and IC devices. The apparatus further provides for high interconnection density of integrated circuits as connections are made without the use of solder bumps. | 10-15-2009 |
| 20090236333 | Food preparation - Devices and methods for RF heating of food, using techniques which allow uniformity and/or controlled non-uniformity. | 09-24-2009 |
| 20110062152 | HIGH-FREQUENCY HEATING APPARATUS WITH ELECTROTHERMIC HEATING DEVICE - There is provided a high-frequency heating apparatus with an electrothermic heating device, including a heating chamber that houses an object to be heated, a high-frequency generating device and an electrothermic heating device for heating the object to be heated, and two overheat prevention devices provided in the electrothermic heating device, wherein the two overheat prevention devices are a first stage overheat prevention device of a resettable type and a second stage overheat prevention device of a non-resettable type, and an operating temperature of the second stage overheat prevention device is set higher than an operating temperature of the first stage temperature overheat prevention device. | 03-17-2011 |
| 20120125921 | COOKING APPARATUS USING MICROWAVES - The present invention relates to a cooking apparatus using microwaves. The cooking apparatus using microwaves according to an embodiment of the present invention, comprises: a microwave generator which generates a plurality of microwaves to heat an object inside a cavity and then outputs the generated microwaves; and a controller which calculates heating efficiency with respect to each of the plurality of microwaves based on the microwaves reflected from the inside of the cavity among the outputted microwaves, and then sets heating time with respect to each microwave during a heating period of time according to the calculated heating efficiency. | 05-24-2012 |
| 20110297672 | VERSATILE MICROWAVE HEATING APPARATUS - A microwave heating apparatus for heating a load by means of microwaves is provided. The microwave heating apparatus comprises a cavity arranged to receive a piece of food to be heated, a first microwave supply system configured to supply microwaves at the cavity bottom for energizing a browning function in the cavity, a second microwave supply system configured to supply microwaves into the cavity for exciting cavity modes and a control unit configured to control the first and second microwave supply systems based on a food category and/or a cooking program. The first supply system comprises at least one microwave source and at least one antenna arranged in a lower part of the cavity and the second microwave supply system comprises at least one microwave source and at least one feeding port arranged in an upper part of the cavity. The present invention is advantageous in that a microwave heating apparatus with an improved crisp function is provided. | 12-08-2011 |
| 20110290790 | COOKING APPARATUS AND OPERATING METHOD THEREOF - Provided herein are a cooking apparatus and an operating method thereof. The cooking apparatus includes a cavity, a microwave generator to generate and output microwaves of a plurality of frequencies to heat an object within the cavity, and a controller to calculate interpolated microwave frequencies for a heating session, based on microwave frequencies calculated during a scanning session, and to calculate heating times of the interpolatedmicrowave frequencies. Thereby, operating efficiency of the cooking apparatus is improved. | 12-01-2011 |
| 20120097667 | Microwave Heating Apparatus and Method of Operating Such a Microwave Heating Apparatus - A microwave heating apparatus and a method of operating a microwave heating apparatus are provided. The microwave heating apparatus comprises a load receiving cavity, at least one microwave source, a plurality of feeding ports connected to the microwave source and the cavity for feeding microwaves to the cavity, a measuring unit and a control unit. The measuring unit measures, for at least one frequency or within a frequency range, the power of microwaves reflected back to the microwave source for at least part of the plurality of feeding ports. The control unit selects at least one of the feeding ports based on the measured powers of the reflected microwaves in order to feed microwaves to the cavity via the at least one selected feeding port during operation of the microwave heating apparatus at the at least one frequency or within the frequency range. | 04-26-2012 |
| 20090283518 | HIGH FREQUENCY HEATING APPARATUS - The present invention is related to a high frequency heating apparatus for driving a magnetron such as a microwave oven, and has an object to provide a frequency modulating system capable of reducing power supply higher harmonic distortion of higher orders which are produced at phases in the vicinity of 0 degree and 180 degrees where an instantaneous voltage of a commercial power supply becomes the lowest voltage. | 11-19-2009 |
| 20090212046 | MICROWAVE INDUCTION HEATING DEVICE - A microwave induction heating device includes microwave oscillation means ( | 08-27-2009 |
| 20100294754 | Ergonomic Commercial Microwave Oven - A microwave oven cabinet is ergonomic designed to provide for both stacking and jigsaw-type back-to-back interlining of multiple units of the microwave ovens. In particular, the cabinet configuration advantageously establishes a reduced footprint, ergonomically designed microwave oven which can be effectively employed in various fields, including fast food chains wherein multiple such ovens may need to be functionally positioned in a limited area, while still being easily accessible. | 11-25-2010 |
| 20100294755 | Field Calibration of Microwave Oven - A voltage calibration routine for an oven, particularly a microwave oven, enables a field technician to enter a voltage calibration mode to display on the oven a pre-established default voltage to which the oven is calibrated. The technician then measures the actual line voltage applied to the oven and, if different than the default voltage displayed, inputs the actual line voltage into the microwave oven control, such as via a keypad. Thereafter, an offset value is calculated to correct the voltage measurement, allowing for a correct tap selection when the microwave oven is running. An additional function is available to check the oven voltage reading upon accessing a voltage reading mode wherein the oven measures and displays the line voltage which is compared to a volt meter reading such that a simple comparison can be made, while avoiding certain steps associated with the voltage calibration mode. | 11-25-2010 |
| 20090272735 | POWER CONTROL UNIT FOR HIGH-FREQUENCY DIELECTRIC HEATING AND CONTROL METHOD THEREOF - A power control unit for a high-frequency dielectric heating not affected by variations in the magnetron type or characteristic, and power supply voltage fluctuation, etc., is provided. The power control unit for a high-frequency dielectric heating has an input current detection section | 11-05-2009 |
| 20090107992 | HIGH-FREQUENCY HEATING APPARATUS - To prevent parts within a heating chamber from melting to thereby secure the safety of a goods even when a user sets an arbitrary time and operates. | 04-30-2009 |
| 20090289056 | POWER CONTROL APPARATUS FOR HIGH-FREQUENCY DIELECTRIC HEATING AND POWER CONTROL METHOD FOR THE SAME - A power control unit for high-frequency dielectric heating not affected by variations in the types or the characteristics of magnetrons, power supply voltage fluctuation, etc., is provided. | 11-26-2009 |
| 20110198345 | AUTOMATED MICROWAVE SAMPLE DIGESTION SYSTEM - There is described an automated heating system for heating a sample contained in a sample holder, comprising: a heating chamber having at least one opening and adapted to receive the sample holder; a microwave generator in microwave transfer communication with the heating chamber; a conveyor extending into the heating chamber and adapted to receive and transport the sample holder into and out of the heating chamber; at least one microwave barrier movable between an open position to allow access to the heating chamber and a closed position to prevent microwaves from leaking out of the heating chamber when the microwave generator is activated; and a control unit for controlling the microwave generator and the conveyor. | 08-18-2011 |
| 20080272115 | High-Frequency Heating Apparatus - A purpose of the present invention is to provide an inverter circuit capable of suppressing an overshooting phenomenon of an input current at an instantaneous time when an initiating operation of the inverter circuit is switched to the normal operation thereof, and thus, capable of preventing damages of IGBTs and a magnetron. | 11-06-2008 |
| 20090188912 | COOKING DEVICE - In a cooking device for cooking an object to be heated, a first operation section is provided to a lower portion of a door, and a second operation section is provided to an upper portion on a front face of a cooking device body so as to be exposed in spite of the door being opened or closed. Numeric keys for accepting a selection from a plurality of recipes stored in advance and start keys for accepting a start of heating are provided to the first and second operation sections redundantly. Therefore, in a case of when the door closes, the first and second operation sections can be used in parallel, allowing arrangement of many keys to have good operability. | 07-30-2009 |
| 20090184110 | HEATING APPARATUS AND FURNITURE AND WALL MEMBER INCORPORATING HEATING APPARATUS - To provide a heating apparatus which is good in the matching property when incorporated into a cabinet etc. without degrading the usability of a heating apparatus itself. | 07-23-2009 |
| 20090321427 | Microwave Oven - Generally and not exclusively, a microwave cooking oven to cook food in a microwave chamber includes at least one array of radiation detectors. An exemplary method includes sensing an optical depth of the item along each of multiple beam paths from at least two sides of the item, and mapping isothermal regions in the interior of the item 3-dimensionally based on the sensing. Another exemplary method includes sensing a microwave power representing a value of a heatability property for each of multiple regions of the same item, and applying a different measure of the microwave power to each of the different regions according to the value of the heatability property in each individual region. Yet another exemplary method includes sensing different frequencies of the microwave power in the microwave chamber, and changing the frequency of the microwave power for heating the item, as the item undergoes heating. | 12-31-2009 |
| 20110139773 | Non-Modal Interplate Microwave Heating System and Method of Heating - Disclosed is a microwave heater and a method of heating. The microwave heater includes a non-modal interplate microwave applicator and may include a nonresonant enclosure. The non-modal interplate microwave applicator is configured to receive therein a load to be heated by microwaves radiated from the non-modal interplate microwave applicator. | 06-16-2011 |
| 20110139772 | Domestic Appliance with Controlled Door Opening - A domestic appliance (for example, a microwave oven), comprising: a housing; a front door; a retention mechanism (for example including a latch), located within the housing and engageable with the door; wherein the retention mechanism is movable between a first configuration, in which the door is retained in a closed position, and a second configuration, in which the door is non-engaged; an electromechanical actuator (for example a relay), adapted to move the retention mechanism out of said first configuration; and a controller (for example a microprocessor coupled to the relay, the microprocessor being operable in responsive to one or more signals to activate the relay, and thereby release the door from the closed position. Under spring bias, the door thus opens to about 30-45 degrees. The microprocessor-controlled door opening may be operable in three or more modes, including: actuation of a touch switch, remote control, or a microwave end of cooking. | 06-16-2011 |
| 20100155394 | POWER CONTROL UNIT FOR HIGH-FREQUENCY DIELECTRIC HEATING AND CONTROL METHOD THEREOF - A power control unit for a high-frequency dielectric heating not affected by variations in the magnetron type or characteristic, and power supply voltage fluctuation, etc., is provided. The power control unit for a high-frequency dielectric heating has an input current detection section | 06-24-2010 |
| 20120241445 | COOKING APPLIANCE EMPLOYING MICROWAVES - The present invention relates to a cooking appliance employing microwaves. According to the present invention, a cooking appliance employing microwaves comprises: a microwave generator for generating and outputting microwaves, provided with an amplifier for performing frequency oscillation and amplification; and a feeder for outputting the outputted microwaves into a cavity. Accordingly, high power microwaves can be easily generated without a separate frequency oscillator. | 09-27-2012 |
| 20100243645 | SPREAD-SPECTRUM HIGH-FREQUENCY HEATING DEVICE - A variable-frequency oscillator | 09-30-2010 |
| 20100252551 | MICROWAVE OVEN WITH A REGULATION SYSTEM USING FIELD SENSORS - A microwave heating device and a method for heating a load using microwaves are provided. The microwave heating device comprises a cavity adapted to receive a load and at least two microwave sources for feeding microwave energy into the cavity through at least two feeding ports respectively. The microwave heating device further comprises at least two field sensors adapted to measure field strengths of the microwave energy in the cavity. A first field sensor is arranged at a first location for measuring the field strength representative of a mode fed from a first feeding port and a second field sensor is arranged at a second location for measuring the field strength representative of a mode fed from a second feeding port. The microwave heating device further comprises a control unit connected to the microwave sources and the field sensors for regulating the microwave sources based on the measured field strengths. The present invention is advantageous in that it enables uniform heating of the load in the cavity. | 10-07-2010 |
| 20090236332 | Microwave oven turntable apparatus - A turntable apparatus is provided for use in a microwave oven which includes a turntable driving motor, turntable drive mechanism connected to the turntable driving motor, an oven door, and a door switch. The subject apparatus is comprised of a turntable unit which is mechanically connected to the turntable drive gearing. The turntable unit includes a plurality of article sensors which suitably may be weight sensors, photo-sensors, or the like. A turntable control microprocessor is electrically connected to the turntable driving motor, to the plurality of sensors, and to the door switch. By receiving signals from the sensors and from the door switch, and by sending signals to the turntable driving motor to rotate the turntable unit, the turntable control microprocessor is adapted to automatically adjusts the position of the turntable unit (and a sensed food container placed thereon) with respect to the oven door such that the food container is proximal to the oven door when the oven door is open. | 09-24-2009 |
| 20110031238 | MICROWAVE HEATING METHOD AND MICROWAVE HEATING APPARATUS - A microwave heating apparatus ( | 02-10-2011 |
| 20110108548 | MICROWAVE HEATING APPARATUS - A microwave heating apparatus includes a microwave generation part | 05-12-2011 |
| 20110017728 | ELECTROMAGNETIC HEATING - An electromagnetic heater for heating an irregularly shaped object, including:
| 01-27-2011 |
| 20100155392 | MICROWAVE OVEN SWITCHING BETWEEN PREDEFINED MODES - A microwave oven and method for heating a load using microwaves are provided. The microwave oven comprises a cavity adapted to receive a load. The cavity is designed to support at least two predefined mode fields. For each predefined mode field, a resonance frequency in the cavity is known. Further, the microwave oven comprises a frequency-controllable microwave source for feeding microwaves into the cavity via at least one feeding port. The method comprises the steps of measuring a signal reflected from the cavity as a function of the operating frequency of the microwave source and identifying resonance frequencies in the cavity based on the measured signal. Further, the method comprises the steps of selecting, for the predefined modes, at least two of the identified resonance frequencies based on the known resonance frequencies and switching the operating frequency of the microwave source using the selected frequencies. The present invention is advantageous in that it enables uniform heating of the load in the cavity. | 06-24-2010 |
| 20100065554 | POWER CONTROL APPARATUS FOR HIGH-FREQUENCY DIELECTRIC HEATING AND POWER CONTROL METHOD FOR THE SAME - A power control unit for high-frequency dielectric heating not affected by variations in the types or the characteristics of magnetrons, power supply voltage fluctuation, etc., is provided. | 03-18-2010 |
| 20100065553 | POWER CONTROL APPARATUS FOR HIGH-FREQUENCY DIELECTRIC HEATING AND POWER CONTROL METHOD FOR THE SAME - A power control unit for high-frequency dielectric heating not affected by variations in the types or the characteristics of magnetrons, power supply voltage fluctuation, etc., is provided. | 03-18-2010 |
| 20090321428 | Microwave oven - Generally and not exclusively, a microwave cooking oven to cook food in a microwave chamber (e.g., a cooking chamber) includes a microwave power source, and a microwave control unit. In one implementation, the control unit includes an array of radiation detectors to detect the microwave power of multiple microwave beams in the cooking chamber, a modeler to map the temperature in different regions of an item in the microwave chamber, and a controller to adjust microwave power being delivered to each region of the item. In one implementation, the control unit can detect the presence and food type of an item in the microwave chamber. The control unit can provide a real time heating and cooking status of each region of an item being heated in the microwave chamber. | 12-31-2009 |
| 20120067872 | SYSTEM AND METHOD FOR APPLYING ELECTROMAGNETIC ENERGY - An apparatus for applying electromagnetic energy to an object in an energy application zone via at least one radiating element is disclosed. The apparatus may include at least one processor. The at least one processor may be configured to determine a value indicative of energy absorbable by the object at each of a plurality of frequencies and to cause the at least one radiating element to apply energy to the zone in at least a subset of the plurality of frequencies. Energy applied to the zone at each of the subset of frequencies may be a function of the absorbable energy value at each frequency. | 03-22-2012 |
| 20100282742 | COOKER - A cooker includes: a heating chamber on which a first object to be heated is placed; a heating plate on which a second object to be heated is placed; an upper heat source provided on an upper side of the heating chamber, and a lower heat source provided on a lower side of the heating chamber and including at least a high-frequency heat source; an operation unit configured to receive an input of information on a heating treatment; and a control unit configured to individually control the upper heat source and the lower heat source, based on the information on the heating treatment. The lower a mounting position of the heating plate becomes, the more high-frequency waves supplied to a heating chamber to a lower side of the heating plate from the high-frequency heat source are supplied to an upper side of the heating plate. | 11-11-2010 |
| 20100224623 | MICROWAVE HEATING APPARATUS - To provide a microwave heating apparatus capable of heating various objects to be heated having different configurations, kinds, sizes, and amounts contained in a heating chamber with high efficiency by keeping low a reflected power of a microwave radiated from microwave supplying means, a microwave generator part includes oscillator parts ( | 09-09-2010 |
| 20130008894 | DRAWER-TYPE HEATING APPARATUS - A drawer type heating apparatus includes a heating case forming a heating space, and an openable door adapted to be moved in a drawing manner relative to the heating case for opening and closing an opening portion, and includes a radio-wave transmission suppression portion which is faced to inner wall surfaces of the opening portion of the heating case, and placed such that there is a predetermined gap between the radio-wave transmission suppression portion and the entire periphery of the inner wall surfaces of the opening portion in the heating case, in a state where the openable door is closed, the radio-wave transmission suppression portion including a first radio-wave-propagation-direction suppression-area constituted by a surface with a plurality of steps, and a second radio-wave-propagation-direction suppression-area having suppression protruding portions which are periodically formed and placed in such a way as to face the first radio-wave-propagation-direction suppression-area with a predetermined interval. | 01-10-2013 |
| 20120043316 | HIGH-FREQUENCY HEATING EQUIPMENT - A high-frequency heating equipment includes temperature sensor ( | 02-23-2012 |
| 20120006812 | Method for Conducting at Least One Cooking Process - A cooking appliance configured to perform a method for conducting at least one cooking process in a cooking chamber of the cooking appliance based on a multiple number of parameters that can be entered through an input device of the cooking appliance. Based on the parameters, at least one cooking product and/or cooking program and at least one starting and/or ending time of the cooking of at least one cooking product and/or for at least one cooking program and at least one cooking parameter can be selected. The appliance is further characterized by the fact that the cooking appliance proposes if and, if applicable, which cooking product can be cooked in addition to a cooking product already undergoing a cooking process under way. | 01-12-2012 |
| 20120152940 | MICROWAVE HEATING DEVICE - In a microwave heating device, a control portion performs an operation for alternately repeating a sweeping operation for detecting reflected electric power with an electric-power detection portion while changing an oscillation frequency of an oscillation portion and fixing a phase value of a phase variable portion for detecting a reflected-electric-power characteristic with respect to the oscillation portion, and a sweeping operation for detecting reflected electric power with the electric-power detection portion while changing the phase value of the phase variable portion and fixing the oscillation frequency of the oscillation portion for detecting a reflected-electric-power characteristic with respect to the phase value, in order to determine an oscillation frequency and a phase value for use in heating a to-be-heated object. | 06-21-2012 |
| 20120152938 | CONTROL OF MICROWAVE SOURCE EFFICIENCY IN A MICROWAVE HEATING APPARATUS - A microwave heating apparatus and a method of operating a microwave heating apparatus are provided. The microwave heating apparatus includes a microwave source for generating microwaves, a transmission line for transmitting the generated microwaves from the microwave source to a cavity, a measuring device that measures the power of microwaves transmitted from the microwave source and a receiving device that receives operational data indicative of the power supplied to the microwave source. The microwave heating apparatus further includes a control unit adapted to adjust the impedance of the transmission line and/or the impedance matching between the microwave source and the transmission line based on the measured power of the transmitted microwaves and the received operational data in order to control the efficiency of the microwave source. The microwave heating apparatus improves control of the microwave source efficiency. | 06-21-2012 |
| 20120152939 | MICROWAVE HEATING DEVICE - A microwave heating device according to the present invention includes a microwave oscillation portion including a reference-signal oscillator formed from a quarts oscillator, phase variable portions and phase-locked loops and, further, includes a control portion for controlling the microwave oscillation portion, and plural radiation portions placed on a wall surface of a heating chamber for housing a to-be-heated object, wherein microwaves supplied to plural microwave feeding points provided in the radiation portions are controlled in phase and electric power, thereby controlling the aspect of radiations of microwaves radiated from the radiation portions. | 06-21-2012 |
| 20120152937 | METHODS OF CONTROLLING COOLING IN A MICROWAVE HEATING APPARATUS AND APPARATUS THEREOF - A microwave heating apparatus and methods of controlling cooling of a microwave heating apparatus are provided. The microwave heating apparatus typically includes a microwave source for generating microwaves, a cooling unit for cooling the microwave source and a control unit. According to one embodiment, the control unit is configured to determine the efficiency of the microwave source and then to control the cooling based on the determined efficiency. The methods and the microwave heating apparatuses of the present invention are advantageous with respect to energy consumption. | 06-21-2012 |
| 20120152936 | IMPINGEMENT/CONVECTION/MICROWAVE OVEN AND METHOD - A combination oven that is operable with convection air, impingement air and microwave energy in various combinations thereof. The oven has an oven chamber and a fan box that are located front to back. A fan in the fan box circulates heated air by discharging via openings in a top and a bottom and taking in via an intermediate opening of a baffle plate. Impingement plates are easily installed and removed in the oven chamber to provide impingement air upwardly or downwardly. At least one of the impingement plates is installed and removed by a sliding motion. Microwave energy is provided through the side walls of the oven chamber. | 06-21-2012 |
| 20120103977 | DIGITAL CONTROL TYPE POWER CONVERTER FOR COOKING UTENSILS - A digital control type power converter for cooking utensils includes a rectifier; a power inverting circuit composed of an IGBT and an LC shunt-resonant circuit; and a SoC chip which internally integrates a MPU, a Programmable Pulse Generator (PPG), an ADC, a COM, wherein the PPG, the ADC and the COM are connected to the MPU. One output of the MPU is connected to the PPG through a first AND gate, and a pulse signal outputted by the PPG is transmitted to the IGBT through a second AND gate. The MPU calculates the present power value according to measured current and voltage signals, and compares the present power value with the required power of the host computer to change the set pulse width value of the PPG. When a magnetic energy conversion detecting circuit outputs an enabling signal, the PPG outputs the pulse signal with the setting pulse width to drive the IGBT and realize the regulation of power. Since this converter can receive man-machine operating instructions and dynamically change its output power, the inductive structure in the resonant circuit can be appropriately changed to be applied to high-frequency heating equipment, such as a microwave oven, an electromagnetic oven, and the alike. | 05-03-2012 |
| 20120160839 | MICROWAVE WOOD HEATER WITH ENHANCED SPATIAL USAGE EFFICIENCY AND UNIFORMITY OF HEAT DISTRIBUTION - A commercial scale microwave system that includes a heater having enhanced heat distribution and minimized void space. The enhanced heat distribution can be provided by a unique launcher and/or reflector configuration disposed in the interior of the microwave heater. The microwave system can be operated to prevent the wood from both overheating (which results in scorching) and under-heating (which results in inadequate drying and/or inadequate thermal-modification). The microwave heating system can provide enhanced microwave energy distribution for large quantities of wood, even large quantities of wood heated under vacuum and/or in the presence of one or more chemical reagents. | 06-28-2012 |
| 20100270292 | COOKER - A cooker includes: a heating chamber on which a first object to be heated is placed; a two-stage cooking dedicated member on which a second object to be heated is placed; an upper heat source provided on an upper side of the heating chamber, and a lower heat source provided on a lower side of the heating chamber and including at least a high-frequency heat source; an operation unit configured to receive an input of information on a heating treatment; and a control unit configured to individually control the upper heat source and the lower heat source, based on the information on the heating treatment. The two-stage cooking dedicated member can hold the second object to be heated and can supply high-frequency waves supplied from the lower heat source as the high-frequency heat source to an upper side of the two-stage cooking dedicated member. | 10-28-2010 |
| 20120312806 | DEMAND SUPPLY MANAGEMENT OVERRIDE OPTIONS - An appliance and method for enabling a consumer to easily override a low energy mode of an appliance to enable a feature or function of the appliance not typically available in the low energy mode. When an appliance or device is in an energy savings mode, multiple consumer requests for a given feature or function within a prescribed period of time can operate to override the energy savings mode and permit operation of the feature and/or function. | 12-13-2012 |
| 20110120991 | Methods For Drying Ceramic Materials - Methods for drying ceramic materials are provided. In one embodiment, a first power set-point of a first microwave applicator of a drying apparatus is determined Power set-points for at least two additional microwave applicators in the drying apparatus are determined such that a power distribution among the microwave applicators provides an energy per unit of water profile for the additional microwave applicators that is substantially uniform. The microwave applicators may be operated at the determined power set-points as the ceramic material is passed through the drying apparatus. | 05-26-2011 |
| 20110120990 | MICROWAVE OVEN POWER SHARING METHOD AND APPARATUS - A microwave oven and methods are presented in which the duty cycle of the current to the primary winding of a transformer in a half-wave voltage doubler feeding the magnetron is controlled according to the current drawn by auxiliary devices in the microwave oven to control the average current consumption of the microwave over time during a heating operation so an associated protection device will not trip. | 05-26-2011 |
| 20110226759 | Apparatus and method for heating semiconductor wafers via microwaves - An apparatus for heating a semiconductor wafer includes: a microwave source; an applicator cavity; and, a fixture for supporting a wafer in the cavity. The fixture comprises a dielectric mechanical support for the wafer and a grounded metallic ring movably positioned parallel to and concentric with the wafer at some distance from the wafer, to adjust the microwave power distribution to compensate for edge effects. A closed-loop feedback system adjusts the distance based on wafer edge and center temperatures. A method for heating a semiconductor wafer comprises: a. placing the wafer in a microwave cavity; b. supporting the wafer on a fixture comprising a dielectric wafer support and a grounded metallic ring movably positioned at some distance from the wafer; c. introducing microwave power into the cavity to heat the wafer; and d. adjusting the distance between wafer and ring to modify the power distribution near the wafer edge. | 09-22-2011 |
| 20110278284 | METHOD AND APPARATUS FOR RAPID THERMAL PROCESSING AND BONDING OF MATERIALS USING RF AND MICROWAVES - A method and apparatus for rapid and selective heating of materials using variable frequency RF and microwaves. The apparatus uses variable frequency solid state electronics as a microwave power source, a novel microwave heating head to couple microwave energy to the target materials and a match-up network to tune the frequency and impedance match between the microwave source and the load. An electronic and computer measurement and control system is employed to monitor and control the microwave heating process. The method teaches the use of inductive microwave coupling for thin conductive materials such as metal film and impurity doped silicon wafers. The method also teaches the use of capacitive microwave coupling for dielectric material such as glass and ceramics. The method further teaches the use of rapid and selective heating of heterostructure for bonding and sealing of mems and integrated circuits. The method and apparatus can provide ultra-high heating speed along with ultra-high heating temperatures for rapid thermal processing of semiconductors and other materials. It also allows the use of bonding materials with high melting temperature for strong bonding and sealing of mems and IC devices. The apparatus further provides for high interconnection density of integrated circuits as connections are made without the use of solder bumps. | 11-17-2011 |
| 20130008893 | ENERGY MANAGEMENT IN A MICROWAVE COOKING APPLIANCE - A microwave oven comprises a cooking cavity and a RF generation module configured to deliver microwave energy into the cooking cavity. A controller receives and processes a signal indicative of the current state of an associated energy supplying utility for determining whether to operate the microwave oven in one of a normal operating mode and a power saving mode in response to the received signal. A power source is operatively associated with the controller and the RF generation module, and is configured to receive a signal from the controller and cause the microwave oven to operate in normal operating mode or in power saving operating mode in accord with the signal. | 01-10-2013 |
| 20100089908 | POWER CONTROL APPARATUS FOR HIGH-FREQUENCY DIELECTRIC HEATING AND POWER CONTROL METHOD FOR THE SAME - A power control unit for high-frequency dielectric heating not affected by variations in the types or the characteristics of magnetrons, power supply voltage fluctuation, etc., is provided. | 04-15-2010 |
