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| Number | Title | Issue Date |
| 7358621 | Using sound waves and photic energy for electric power An electric power generating and gaining device using sound waves and photic energy to generate magnetism together using a crystal microphone device providing a metallic film with metallic coil leading wires to sense and receive the frequency of external sound waves... | 04/15/2008 |
| 7260500 | Method and apparatus for monitoring and verifying equipment status An equipment status monitoring system having at least one multi-modal resonator included as a part of a semiconductor processing system and a power source coupled to the at least one multi-modal resonator. The power source is configured to produce a microwave excita... | 08/21/2007 |
| 7227109 | Microwave ovens The oven cavity (1) of a microwave oven includes an apertured launch wall (3) on the external side of which a launch box (5) is mounted so as to cover the aperture. Two three or four magnetrons supply microwave energy to the launch box (5... | 06/05/2007 |
| 7196297 | Process and system for thermally uniform materials processing The present invention provides a system and method for binder removal and sintering of materials such as ceramic materials and products, LTCC intervals, solid oxide fuel cells and powder metals. A combination of microwave and convection/radiation heating is employed... | 03/27/2007 |
| 7132621 | Plasma catalyst Methods and apparatus are provided for igniting, modulating, and sustaining a plasma for various plasma processes and treatments. In one embodiment, a plasma is ignited by subjecting a gas in a multi-mode processing cavity to electromagnetic radiation having a frequ... | 11/07/2006 |
| 7105787 | Reverberating adaptive microwave-stirred exposure system A method and apparatus for adaptively maintaining the power-frequency spectrum in a reverberation chamber. The invention is thus capable of maintaining a relatively constant power-frequency spectrum in the chamber even when a device under examination is placed into ... | 09/12/2006 |
| 7096599 | Household appliance A household appliance (1) e.g a washer-dryer, comprises an enclosure (2) into which objects to be heated are placed, a magnetron (4) for generating microwaves, a waveguide (3) for feeding the generated microwave into the enclosure, an arc... | 08/29/2006 |
| 7057398 | Microwave spectrometer An improved microwave spectrometer for measuring the concentration of ethylene oxide gas and the concentration of water vapor in one or more gas samples taken from an ethylene oxide sterilization chamber. ... | 06/06/2006 |
| 6940055 | Microtiter plate with integral heater A microtiter plate system includes an integral heater. In an embodiment, the integral heater includes a heater plate. In another embodiment, the integral heater includes resistive heater wires positioned beneath and/or between the wells of a microtiter plate. In an ... | 09/06/2005 |
| 6900421 | Microwave-assisted steam sterilization of dental and surgical instruments A surgical and dental instrument sterilizer is described. Liquid water is rapidly vaporized by microwave heating and steam is generated to attain a steam pressure of approximately 47 psi and a temperature of approximately 135° C. in the region of the articles to be... | 05/31/2005 |
| 6884979 | Method and apparatus for uniform heating in a microwave oven A microwave oven and a method for heating a load which is placed therein. According to the invention a predetermined mode in the cavity of a microwave oven is fed by means of an associated feeding port which is arranged to feed essentially the intended mode only, th... | 04/26/2005 |
| 6737619 | Microwave polymerization system for dentistry A microwave polymerization system for dentistry utilizes specifically controlled microwave energy to cure polymer materials so as to produce dental prosthetics, such as dentures, bridges and crowns, that are made in an extra-oral setting such as a dental laboratory ... | 05/18/2004 |
| 6720540 | Microwave apparatus and methods of performing chemical reactions The present invention relates to an apparatus and methods for performing chemical reactions. In particular, the present invention relates to an apparatus for heating chemical reaction mixtures. The apparatus applies one or more semiconductor based microwave generato... | 04/13/2004 |
| 6472650 | Food amount detector of a microwave oven, a microwave oven employing a food amount detector and a control method thereof A food amount detector for automatically detecting the amount of a food placed in a cooking chamber of a microwave oven, a microwave oven employing the food amount detector, and control method thereof. Output voltage of a microwave generator is detected w... | 10/29/2002 |
| 6452141 | Microwave oven with magnetic field detecting device Disclosed herein is a microwave oven with a magnetic field detecting device. The microwave oven includes a magnetron for generating microwaves and a wave guide for guiding the microwaves to a cooking chamber. A detection opening is formed in one side of t... | 09/17/2002 |
| 6441354 | Microwave polymerization system for dentistry A microwave polymerization system for dentistry utilizes specifically controlled microwave energy to cure polymer materials so as to produce dental prosthetics, such as dentures, bridges and crowns, that are made in an extra-oral setting such as a dental ... | 08/27/2002 |
| 6403939 | Microwave apparatus and methods for performing chemical reactions The present invention relates to an apparatus and methods for performing chemical reactions. In particular, the present invention relates to an apparatus for heating chemical reaction mixtures. The apparatus applies one or more semiconductor based microwa... | 06/11/2002 |
| 6396035 | Microwave oven and data obtaining method therefor A data obtaining method for a microwave oven for processing a cooking status of food detected by a sensor into data, including the steps of: detecting data from food for a predetermined time period; calculating a summation of the detected data; and subtra... | 05/28/2002 |
| 6271538 | High-frequency detecting elements and high-frequency heater using the same A high-frequency detecting element that can detect a temperature increase in an instant due to high-frequency wave absorption using semiconducting ceramic with positive resistance-temperature characteristics. The ceramic is composed mainly of barium titan... | 08/07/2001 |
| 6268597 | Microwave oven A microwave oven has a stationary wave magnetic field detecting device. The microwave oven includes an antenna sensor having a loop portion which is protruded into a waveguide of the microwave oven, and a wire whose one end is grounded at the waveguide, w... | 07/31/2001 |
| 6259078 | Method for microwave drying of ceramics The invention is directed at apparatus for microwave heating of a ceramic, comprising an adjustable power microwave source for directing microwave power into a continuous throughput microwave cavity. The apparatus further includes a microwave power contro... | 07/10/2001 |
| 6247246 | Microwave moisture analyzer: apparatus and method A toploading weighing instrumentality which determines loss on drying by a cylindrical microwave. The cylindrical cavity of the microwave includes a power supply, a magnetron, a power module operatively coupled between said power supply and said magnetron... | 06/19/2001 |
| 6242726 | Adjustable microwave field stop An improved magnetic field stop. The field stop adjusts to allow different sizes of products to be passed through a microwave heating system. The field stop prevents undue radiation from escaping a heating chamber which is used in a microwave heating proc... | 06/05/2001 |
| 6172348 | High frequency heating apparatus A high frequency heating apparatus for heating an object to be heated is provided with an electromagnetic wave emission device for emitting electromagnetic waves, a local heating device capable of heating an optional portion of the object by the electroma... | 01/09/2001 |
| 6166364 | Microwave oven having a microwave detecting device A microwave detecting device outputs a first predetermined voltage in accordance with the presence/absence of microwave in a waveguide. A microcomputer inputs the first predetermined voltage, outputs a second predetermined voltage in accordance with the l... | 12/26/2000 |
| 6166363 | Defrosting method for a microwave oven A defrosting method for a microwave oven capable of variably adjusting a level of output power of a magnetron in accordance with data detected from a sensor, comprising the steps of (a) detecting a change degree of output data from a sensor for a predeter... | 12/26/2000 |
| 6114677 | Microwave heating apparatus having a metal plate rotatably disposed in a wave guide A microwave heating apparatus includes a magnetron (6) mounted on a top surface of a wave guide (7). A bottom surface of wave guide (7) is inclined towards the bottom of the wave guide opening. A metal plate (9) is provided with a predetermined clearance ... | 09/05/2000 |
| 6025580 | Microwave and far infrared drying under reduced pressure A method of drying objects includes the steps of placing the objects into a pressure reduction tank, placing a metallic element having a single or plural number of sharp edge into the pressure reduction tank, subjecting the objects to controlled microwave... | 02/15/2000 |
| 5998775 | Microwave oven having a cooking chamber reflecting microwaves at varying angles A microwave oven includes a main body, a cooking chamber provided in the main body, and an electrical component compartment containing electrical components, including a magnetron for supplying microwaves to the cooking chamber. Disposed in the cooking ch... | 12/07/1999 |
| 5961871 | Variable frequency microwave heating apparatus A variable frequency microwave heating apparatus (10) designed to allow modulation of the frequency of the microwaves introduced into a multi-mode microwave cavity (34) for testing or other selected applications. The variable frequency microwave heating a... | 10/05/1999 |
| 5892198 | Method of and apparatus for electronically controlling r.f. energy supplied to a vacuum plasma processor and memory for same A load including a plasma discharge in a plasma processing chamber is matched to a variable frequency source so the power reflected from the load is substantially minimized. The source voltage or a variable reactance of a matching network between the sour... | 04/06/1999 |
| 5859412 | Microwave and far infrared drying under reduced pressure A method of drying objects includes the steps of placing the object into a pressure reduction tank, placing a metallic element having an acute-angled portion into the pressure reduction tank, reducing to the pressure toward a predetermined single reduced ... | 01/12/1999 |
| 5851319 | Method and apparatus for selectively annealing heterostructures using microwaves The present invention discloses a process for selectively annealing heterostructures using microwaves. A heterostructure, comprised of a material having higher microwave absorption and a material having lower microwave absorption, is exposed to microwaves... | 12/22/1998 |
| 5828042 | Uniform heating apparatus for microwave oven and method thereof A uniform heating apparatus for a microwave oven and a method thereof which are capable of more uniformly heating food by generating various resonant modes based on the kind of food. The apparatus includes an oscillator unit having a wave guide tube for g... | 10/27/1998 |
| 5793025 | High-frequency detecting elements and high-frequency heater using the same A high-frequency detecting element that can detect a temperature increase in an instant due to high-frequency wave absorption using semiconducting ceramic with positive resistance-temperature characteristics. The ceramic is composed mainly of barium titan... | 08/11/1998 |
| 5756975 | Apparatus and method for microwave curing of resins in engineered wood products An apparatus, system, and method, for using circular mode magnetic microwave energy to heat the interior regions of a work piece of wood fiber and glue. The microwaves are generated and transmitted as rectangular waveguide mode microwave energy, and are c... | 05/26/1998 |
| 5695672 | Microwave oven having vertically adjustable turntable A microwave oven has a cooking chamber in which a vertically movable turntable is disposed. During the onset of a cooking operation, a control mechanism automatically raises the turntable in step-by-step fashion, and the amount of high frequency waves ref... | 12/09/1997 |
| 5653778 | Molding device comprising microwave generator and a microwave oven A device for molding products made of glass or a synthetic resin which device has a microwave generator, a microwave oven coupled to the generator and mold parts movable relative to each other provided in the microwave oven for forming molds for holding a... | 08/05/1997 |
| 5616268 | Microwave blood thawing with feedback control A microwave thawing system for thawing bags of frozen blood products features non-invasively monitoring the internal temperature of the blood product during thawing, and controlling the level of warming energy applied to the blood product based on the mon... | 04/01/1997 |
| 5550355 | Microwave oven driving control method and apparatus thereof During operation of a microwave oven, steps are taken to determine whether the oven is being operated in the absence of food therein and to shut down the oven if that state is found to exist. Initially, a high frequency detector disposed in the cooking ch... | 08/27/1996 |
