Class / Patent application number | Description | Number of patent applications / Date published |
219745000 | Field modification | 38 |
20110031239 | Microwave Irradiation System - A microwave irradiation system includes first and second microwave generators, and an applicator which includes: a microwave transmission part connected to the first and second microwave generators; a reflecting plane, at an other end of the microwave transmission part of the applicator, configured to reflect microwaves from the first and the second microwave generators at such a location that a space of an object, in the microwave transmission part of the applicator between the end and the other end is irradiated with both a greater intensity of electric field and a smaller intensity of magnetic field generated by the first microwave generator and with both a greater intensity of magnetic field and a smaller intensity of electric field generated by the second microwave generator; and a filter part through which at least one of the first and second microwave generators is connected to the applicator. | 02-10-2011 |
20130068760 | MICROWAVE FIELD DIRECTOR STRUCTURE HAVING VANES COVERED WITH A CONDUCTIVE SHEATH - A reusable self-supporting field director for use in heating an article in a microwave oven is characterized by a plurality of vanes, with each vane extending radially outwardly from a central axis. Each vane is angularly adjacent to two other vanes and is attached to each other at their inner ends. Each vane has a predetermined thickness dimension. | 03-21-2013 |
20130126521 | MICROWAVE FIELD DIRECTOR STRUCTURE WITH VANES HAVING A CONDUCTIVE MATERIAL THEREON - A self-supporting field director for use in heating an article in a microwave oven is characterized by a plurality of vanes, each vane extending radially outwardly from a central axis and being angularly adjacent to two other vanes. The vanes are supported by a slotted central support member. Each vane has a substrate formed from an electrically non-conductive material. A portion of at least one of the first and second major surfaces is covered by an electrically conductive material. | 05-23-2013 |
20130175262 | MICROWAVE OVEN WITH ANTENNA ARRAY - Techniques are disclosed relating to microwave ovens. In one embodiment, an apparatus is disclosed that includes a microwave heating unit. The microwave heating unit is configured to radiate microwaves into a cavity and includes an antenna array coupled to one or more amplifiers. The antenna array is configured to generate the radiated microwaves. In some embodiments, the microwave oven is configured to measure temperatures of a item within the cavity, and to steer a microwave beam produced by the antenna array based on the measured temperatures. | 07-11-2013 |
20130206752 | COOKING APPARATUS - Provided herein are a cooking apparatus and an operating method thereof. The cooking apparatus includes a microwave generator to generate and output microwaves of a plurality of frequencies to heat an object within a cavity, a resonance mode conversion unit to convert a resonance mode by varying at least one of progressing direction, power or frequency of the microwaves output to the inside of the cavity, and a controller to operate the resonance mode conversion unit, if the number of frequencies of microwaves, the heating efficiencies of which are more than a reference heating efficiency, is below a reference value, based on heating efficiencies calculated according to microwaves reflected by the inside of the cavity from among the output microwaves. Thereby, operating efficiency of the cooking apparatus is improved. | 08-15-2013 |
20140263293 | WALL CONFIGURATIONS FOR GENERATING UNIFORM FIELD REFLECTION - A method of generating an RF field reflection, including positioning a grid wall in front of a conductive wall, launching RF energy at the grid wall and said conductive wall, including first and second linearly polarized orthogonal components, and highly reflecting one component from the grid wall set and allowing the other component to pass through the grid wall set with little reflection to reflect from the conductive wall. | 09-18-2014 |
20150351166 | WORKPIECE PROCESSING CHAMBER HAVING A ROTARY MICROWAVE PLASMA SOURCE - In a processing reactor having a microwave plasma source, the microwave radiator is mounted on a rotary microwave coupling for continuous rotation. | 12-03-2015 |
20150382400 | METHODS AND DEVICES FOR APPLYING RF ENERGY ACCORDING TO ENERGY APPLICATION SCHEDULES - Electromagnetic, energy is applied to an object at multiple modulation space elements (MSEs). MSEs are grouped into at least a first subset and a second subset according to a first grouping rule. A first EM energy application protocol is associated with the first subset and a second EM energy application protocol is associated with the second subset. Energy is applied at each of the plurality of MSEs according to the first EM energy application protocol and the second EM energy application protocol. MSEs are grouped into a third subset and a fourth subset according to a second grouping rule. A third EM energy application protocol is associated with the third subset and a fourth EM energy application protocol is associated with the fourth subset. EM energy at each of the plurality of MSEs is applied according to the third EM energy application protocol and the fourth EM energy application protocol. | 12-31-2015 |
20160073453 | 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. | 03-10-2016 |
219746000 | With power feed structure | 20 |
20090045191 | Electromagnetic heating - An electromagnetic heater for heating an irregularly shaped object, including:
| 02-19-2009 |
20100176123 | MICROWAVE HEATING APPARATUS - A microwave heating apparatus includes a microwave generation part ( | 07-15-2010 |
20110031240 | ELECTROMAGNETIC HEATING - An electromagnetic heater for heating an irregularly shaped object, including:
| 02-10-2011 |
20120267361 | ELECTROMAGNETIC HEATING ACCORDING TO AN EFFICIENCY OF ENERGY TRANSFER - A method of delivering energy to an object in a cavity may include transmitting electromagnetic energy to the cavity at a plurality of frequencies. At each of the plurality of frequencies, the method may also include determining an efficiency of energy transfer into the object and adjusting power transmitted at each of the plurality of frequencies such that a multiplicative product of the efficiency and the power transmitted is substantially constant across each of the plurality of frequencies. | 10-25-2012 |
20160088691 | MICROWAVE OVEN WITH VARIABLE CAVITY GEOMETRY OF COOKING CHAMBER - Microwave oven system with enhanced microwave radiation uniformity in a cooking chamber. The microwave oven includes a stirrer installed outside the cooking chamber and operable to vary a cavity volume or a cavity shape of the cooking chamber while the stirrer rotates for more uniform food cooking. The stirrer may be disk-shaped and can simultaneously rotate and move vertically to change the cavity volume of the cooking chamber during operation. Alternatively, the stirrer may be installed in an inclined angle and can change the cavity shape of the cooking chamber when rotating. | 03-24-2016 |
219747000 | Phase shifting | 4 |
20100219184 | APPLICATOR AND METHOD FOR RF HEATING OF MATERIAL - A radio frequency heater is disclosed including a vessel for containing material to be heated and a radio frequency radiating surface. The vessel has a wall defining a reservoir. The radio frequency radiating surface at least partially surrounds the reservoir. The radiating surface includes two or more circumferentially spaced petals that are electrically isolated from other petals. The petals are positioned to irradiate at least a portion of the reservoir, and are adapted for connection to a source of radio frequency alternating current. A generally conical tank or tank segment having a conically wound radio frequency applicator is also contemplated. Also, a method of heating an oil-water process stream is disclosed. In this method a radio frequency heater and an oil-water process stream are provided. The process stream is irradiated with the heater, thus heating the water phase of the process stream. | 09-02-2010 |
20140367377 | MICROWAVE HEATING APPARATUS AND HEATING METHOD - A microwave heating apparatus includes a phase control unit configured to change a phase of a standing wave of microwave introduced into the process chamber by the microwave introduction unit. The phase control unit includes a recessed portion with respect to an inner surface of the bottom wall. The phase control unit is formed of a bottom portion and a fixing plate installed at a lower surface of the bottom portion from the outer side of the process chamber. The phase of the standing wave in the process chamber is changed by the incidence and reflection of the microwave in the recessed portion of the phase control unit surrounded by metallic wall. | 12-18-2014 |
20150136761 | MICROWAVE HEATING APPARATUS FOR UNIFORMLY HEATING OBJECTS BASED ON NEAR-CUTOFF CONDITION - The microwave heating apparatus of the present invention enables microwaves to be propagated onto an object to be heated through a waveguide such that the microwaves propagate to a microwave space reduced by a wavelength controller which is arranged, as a solid-state object, to occupy a predetermined space in the waveguide. Thus, the microwave heating apparatus of the present invention heats the object to be heated which has been placed in the reduced space. The microwave heating apparatus of the present invention utilizes the effects of lengthening the wavelength of the microwaves propagating to the reduced space so as to be longer than the wavelength before entering the reduced space by a predetermined multiple depending on a near-cutoff condition. | 05-21-2015 |
20150366006 | FOOD PREPARATION - A heating profile of a microwave oven is modified using microwaves at a plurality of frequencies. A power of transmission to a cavity of the microwave oven of microwaves is defined at each of the plurality of frequencies. A duration is defined for which the microwaves are transmitted at each of the plurality of frequencies. For each of the plurality of frequencies, a proportion of power input to the cavity that is not output from the cavity is measured. The measured proportions am used to modify the power of transmission at each frequency, the duration of transmission at each frequency or both. | 12-17-2015 |
219748000 | Radiator (e.g., antenna, etc.) | 8 |
20080290087 | Electromagnetic heating - An apparatus for applying RF energy to an object, comprising at least one slower-scanning, frequency source and at least one faster-scanning frequency source, and a controller which sweeps a range of frequencies using the faster-scanning source to measure RF absorption and controls the slower-scanning frequency source based on the sweep. | 11-27-2008 |
20090057302 | Dynamic impedance matching in RF resonator cavity - A method for matching an impedance of a system comprising a cavity and one or more feeds to an impedance of one or more sources of electromagnetic radiation irradiating a plurality of frequencies into the cavity via the feeds, comprising: determining a plurality of s-parameter of the system for a frequency band; determining the system impedance based on the s-parameters; and modifying the system impedance according to the difference between the impedance of the system and the impedance of the source. | 03-05-2009 |
20100051612 | MICROWAVE HEATER AND METHOD OF HEATING - A microwave heater and method of heating are provided. The microwave heater includes a non-resonant enclosure and a continuous helical antenna within the non-resonant enclosure. The continuous helical antenna is configured to receive therein a load to be heated by microwaves radiated from the continuous helical antenna. | 03-04-2010 |
20110168699 | MICROWAVE HEATING APPARATUS - In a microwave heating apparatus of the invention, microwaves from oscillation parts | 07-14-2011 |
20130119054 | ELECTROMAGNETIC HEATING - An apparatus for applying RF energy, via an antenna, to an object placed in a cavity is disclosed. The apparatus includes a Direct Digital Synthesis (DDS) frequency source configured to feed the antenna with RF energy at a plurality of frequencies, and a controller configured to control the DDS frequency source to apply RF energy to the object. | 05-16-2013 |
20130284728 | COOKING APPARATUS - Provided herein is a cooking apparatus. The cooking apparatus includes a plate forming a cavity, a microwave transmission line to transmit microwaves to the inside of the cavity, and a first metal part connected to one end of the microwave transmission line and extended in one direction so as to be parallel with the plate. Thereby, an antenna having improved efficiency is provided. | 10-31-2013 |
20140166645 | MICROWAVE HEATING DEVICE - In a microwave heating device of the present invention, a heating-chamber input portion is adapted to direct, to a heating chamber, microwaves having propagated through a waveguide tube and having passed through the positions where microwave radiating portions are formed, thereby realizing a state where progressive waves are dominant among the microwaves propagating through the waveguide tube, so that the microwave radiating portions are caused to radiate, to the inside of the heating chamber, microwaves based on the progressive waves propagating through the waveguide tube. This enables uniformly heating an object to be heated, without using a rotational mechanism. | 06-19-2014 |
219749000 | Rotating | 1 |
20160088690 | MICROWAVE HEATING APPARATUS - A microwave heating apparatus includes: a heating chamber which houses a heating object; a microwave generating unit which generates a microwave; a transmitting unit which transmits the microwave generated by the microwave generating unit; a waveguide-structure antenna which radiates to the heating chamber the microwave transmitted from the transmitting unit; and a rotation driving unit which drives the waveguide-structure antenna to rotate, wherein the waveguide-structure antenna has a microwave sucking-out opening in a wall surface forming a waveguide structure of the waveguide-structure antenna. | 03-24-2016 |
219750000 | With tuning or particular modes | 3 |
20090139988 | SYSTEM FOR CREATING MORE UNIFORM DISTRIBUTION OF MICROWAVE ENERGY IN A CAVITY - A microwave device is disclosed which includes a cavity wherein varied frequency microwaves are generated, a movable tuning member that is adapted to extend into the cavity and a force generator that is mechanically coupled to the movable tuning member, the force generator, when actuated, being adapted to move the movable tuning member within an opening in the cavity. A method is also disclosed which includes varying a volume of a cavity in a microwave generator and generating varied frequency microwaves in the cavity. | 06-04-2009 |
20090294440 | System And Method For Drying Of Ceramic Greenware - Systems and methods for controlling drying of ceramic greenwares in a manner that accounts for the load presented to a radio-frequency (RF) source of an RF applicator to reduce the risk of overheating greenware during drying. The method includes partially drying the greenware and then substantially drying the greenware with RF radiation. The amount of RF radiation provided to an electrode region is controlled based on the number of greenware pieces within the electrode region at a given time. The system includes a control unit electrically connected to the electrode and configured to provide a select RF voltage to the electrode based on the number of greenwares within the electrode region. The system adjusts at least one input voltage from a power supply. The adjusted voltage is stepped-up, DC-rectified to form a plate voltage, and then is converted by a high-frequency DC/AC convertor to the select high-frequency AC RF voltage needed to dry the greenwares without overheating. | 12-03-2009 |
20190150233 | SYSTEM AND METHOD FOR CONTROLLING POWER FOR A COOKING DEVICE | 05-16-2019 |
219751000 | Mixer (e.g., rotating stirrer, etc.) | 3 |
20100243646 | METHOD AND APPARATUS FOR MODE STIRRING IN A MICROWAVE OVEN - In one embodiment, a method includes emitting electromagnetic radiation from a magnetron and receiving the electromagnetic radiation in a scatterer. The method also includes varying a radar cross section of the scatterer in response to exposure to the electromagnetic radiation. | 09-30-2010 |
20120199580 | WAVE STIRRER FOR A MICROWAVE OVEN - The present invention relates to a wave stirrer for a microwave oven. The wave stirrer comprises a holding device ( | 08-09-2012 |
20140197163 | MICROWAVE MODE STIRRER APPARATUS - A mode stirrer apparatus that enables a more effective heating pattern in the food that is to be cooked. Two mode stirrers located in opposite walls of the oven. Each mode stirrer is independently driven by a small gear motor that causes the mode stirrer to rotate in only one direction. The result of this mounting configuration is that the mode stirrers rotate in a counter-rotating fashion in relation to the food being cooked. The mode stirrer in this invention has a combination of radiating slots (which behave like a rod shaped dipole antenna) and large areas of angled/displaced metal. | 07-17-2014 |
219752000 | By load support movement | 6 |
20080314895 | ENHANCED SAMPLE PROCESSING DEVICES, SYSTEMS AND METHODS - Devices, systems, and methods for processing sample materials. The sample materials may be located in a plurality of process chambers in the device, which is rotated during heating of the sample materials. | 12-25-2008 |
20110303657 | ENHANCED SAMPLE PROCESSING DEVICES, SYSTEMS AND METHODS - Devices, systems, and methods for processing sample materials. The sample materials may be located in a plurality of process chambers in the device, which is rotated during heating of the sample materials. | 12-15-2011 |
219753000 | Horizontal and vertical | 1 |
20150129585 | MICROWAVE RANGE - A microwave range includes a main body having a cooking chamber therein; and a tray unit in the cooking chamber, in which the tray unit is configured to rotate food on a first plane and a second plane, the second plane being is orthogonal to the first plane. | 05-14-2015 |
219754000 | Horizontal (e.g., turntable, etc.) | 3 |
20150090710 | Microwave Heating System - A microwave heating system comprises a bowl, dome and rotor device. The dome is fit to the bowl. The bowl and dome form a volume. The bowl is connected to a microwave source such that a microwave field is supplied to the volume. The microwave field is attenuated in a region between the rotor device and the dome compared to a region between the bowl and the rotor device. The rotor device is rotatably supported by the bowl and supports a reaction vessel. The rotor device includes a base plate with a through-hole and a tubular member that receives the reaction vessel. The base plate and tubular member are metal. The rotor device is coupled to the base plate so that a longitudinal axis of the tubular member passes through the through-hole. | 04-02-2015 |
20150129586 | MICROWAVE HEATING APPARATUS AND PROCESSING METHOD - A microwave heating apparatus includes a processing chamber having a top wall, a bottom wall and a sidewall, and configured to accommodate an object to be processed; a microwave introducing unit configured to generate a microwave for heating the object and introduce the microwave into the processing chamber; a plurality of supporting members configured to make contact with the object and support the object in the processing chamber. The microwave heating apparatus further includes a dielectric member provided between the object supported by the supporting members and the bottom wall while being apart from the object. | 05-14-2015 |
20150144622 | MICROWAVE HEAT TREATMENT APPARATUS AND MICROWAVE HEAT TREATMENT METHOD - A microwave heat treatment apparatus includes: a processing vessel configured to accommodate a substrate therein; a support member configured to rotatably support the substrate in the processing vessel; a microwave introduction device configured to generate a microwave for processing the substrate and introduce the microwave into the processing vessel; a first cooling gas introduction part installed to face a main surface of the substrate supported by the support member, the main surface being a target to be processed; a second cooling gas introduction part installed in a lateral side of the substrate supported by the support member; and a control unit configured to independently control the introduction of a cooling gas from the first cooling gas introduction part and the introduction of the cooling gas from the second cooling gas introduction part. | 05-28-2015 |