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| Number | Title | Issue Date |
| 8115147 | Induction heating system output control based on induction heating device In one exemplary embodiment, the induction heating system includes an induction heating power source. The induction heating power source is operable to identify an induction heating device coupled to the induction heating power source. The exemplary induction heatin... | 02/14/2012 |
| 7696458 | Induction heating system and method of output power control A system and method for inductively heating a work piece. The induction heating system is coupleable to at least one temperature feedback device. The temperature feedback device is disposed within the induction heating system to provide a signal representative of th... | 04/13/2010 |
| 7582851 | Gradient induction heating of a workpiece An apparatus and process are provided for gradient induction heating or melting of a workpiece with a plurality of induction coils, each of the plurality of induction coils is connected to a power supply that may have a tuning capacitor connected across the input of... | 09/01/2009 |
| 7368690 | Method of and apparatus for processing of semi-solid metal alloys Apparatus for producing a semi-solid metal alloy from a molten charge includes vertically aligned treatment zones which are provided by vertically aligned passages defined by a plurality of spirally wound flow pipes which are interspersed between spirally wound indu... | 05/06/2008 |
| 7361870 | Supply generator for an oscillating circuit, particularly for an induction cooking hob A supply generator for an oscillating circuit, includes an inductance (L) and a resonant capacitor (C3, C4), for operation at a fixed frequency and also includes at least one pair of transistors (I2, I2), operated on a var... | 04/22/2008 |
| 7343113 | Fixing device, image forming apparatus including the fixing device, and fixing method A fixing device for fixing an image formed on a recording material in an image forming apparatus includes a fixing member, a heating part that heats the fixing member to fix an image formed on the recording material by heat, a storage unit that is charged by an exte... | 03/11/2008 |
| 7282680 | Apparatus for controlling inverter circuit of induction heat cooker An apparatus for controlling an inverter circuit of an induction heat cooker which generates and outputs high voltage power to cook food contained in a cooking container is disclosed. The apparatus varies a pulse width of high level interval of a driving pulse accor... | 10/16/2007 |
| 7279665 | Method for delivering harmonic inductive power Method and apparatus for providing harmonic inductive power, and more particularly for delivering current pulses providing a desired amount of pulse energy in high frequency harmonics to a load circuit for inductive heating of an article. By controlling the shape an... | 10/09/2007 |
| 7279663 | Fixing device using induction heating and method for producing same A fixing device includes a heating roller which is made of a magnetic metal, a coil which is made of a plurality of twisted wires, an exciting circuit which applies a high-frequency current to the coil, and a core which is made of a heat resistant resin and is arran... | 10/09/2007 |
| 7233115 | LED-based lighting network power control methods and apparatus Multiple lighting apparatus coupled together to form a lighting network, in which operating power is efficiently provided throughout the network based on a distributed DC voltage or a distributed AC voltage. Based on various power driver configurations, each lightin... | 06/19/2007 |
| 7230216 | Induction heating method and unit It is an object of the present invention to prevent temperature decrease in a border portion of each of heating coils and to enable to eliminate an influence given by the change in a load state. In order to attain this object, an induction heating unit according to ... | 06/12/2007 |
| 7202451 | Induction heating method and unit It is an object of the present invention to prevent temperature decrease in a border portion of each of heating coils and to enable to eliminate an influence given by the change in a load state. In order to attain this object, an induction heating unit 400 ac... | 04/10/2007 |
| 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 |
| 7119310 | U-flow ventilated sealing head An inductive cap sealer (10) for sealing an inner seal over an opening (54) in container (52) includes a vented sealing head (12). The sealing head (12) contains an induction coil (24) for producing an electromagnetic field ... | 10/10/2006 |
| 7062193 | Fixing device that is detachable from an image forming apparatus An electrophotographic fixing device allowing a flow of an AC current through an electromagnetic induction coil arranged close to a heating roller having a metal layer formed of a conductor and allowing the heat generation of the heating roller to heat a to-be-fixed... | 06/13/2006 |
| 7049764 | Electrodeless lighting apparatus using microwave and method for controlling power thereof An electrodeless lighting apparatus using microwave and a method for controlling its power can lengthen lifetimes of the magnetron by constantly maintaining power applied to a magnetron of the electrodeless lighting apparatus using microwave. Therefore, when inputte... | 05/23/2006 |
| 7034263 | Apparatus and method for inductive heating A system and method for inductive heating, in which a power source provides current pulses with high-frequency harmonics to a heater coil, the coil generating a magnetic flux for inductive heating of an article. The high-frequency harmonics enhance a relative propor... | 04/25/2006 |
| 7034264 | Heating systems and methods utilizing high frequency harmonics Heating systems and methods for inductive heating or a combination of resistive and inductive heating. A heater coil is inductively coupled to an article and a current signal is supplied to the heater coil. The heater coil generates a magnetic flux, based on the app... | 04/25/2006 |
| 6977362 | Induction heating device with a switching power source and image processing apparatus using the same An induction heating device includes a plurality of induction coils connected to a single high-frequency power source and each being able to be ON/OFF controlled by a switch. A current is selectively fed only to desired part of the induction coils or to all of the i... | 12/20/2005 |
| 6943330 | Induction heating system with resonance detection An induction heating is provided. The induction heating system comprises a power switch, a resonant heating circuit, and a pulse initiator. The resonant heating circuit is configured to be coupled to a load and configured to generate an oscillating voltage in respon... | 09/13/2005 |
| 6933480 | Image heating apparatus A heating apparatus includes a coil for generating a magnetic field; a heating element for generating heat by eddy currents generated by the magnetic field; an electroconductive member for generating an electromotive force by a current flowing through the coil; and ... | 08/23/2005 |
| 6847019 | Induction heating roller device, heating roller for induction heating roller device, fixing apparatus and image forming apparatus An induction heating roller, a fixing apparatus and an image forming apparatus are disclosed as including a heating roller (TR) comprised of a hollow roller base body (BB), composed of electrically insulating material, and a plurality of secondary coil components (w... | 01/25/2005 |
| 6838785 | Operating device for an electrical appliance In an embodiment of the invention it is possible to create an operating unit (11) with a rotary toggle (14), which has an integrated bearing device (15) with which the operating unit (11) can be magnetically fixed to a cover (12). ... | 01/04/2005 |
| 6813456 | Fixing device An electrophotographic fixing device allowing a flow of an AC current through an electromagnetic induction coil arranged close to a heating roller having a metal layer formed of a conductor and allowing the heat generation of the heating roller to heat a to-be-fixed... | 11/02/2004 |
| 6700104 | Portable stripping head induction heating system for stripping coated and lined metal objects and surfaces and methods for stripping coated metal objects and surfaces The invention is of a portable stripping head induction heating system and associated method of use thereof which system and method is useful in heating metallic components to which protective coatings or linings are applied for enabling their easy remova... | 03/02/2004 |
| 6639198 | Hand held induction tool with energy delivery scheme An apparatus and system for using magnetic fields to heat magnetically susceptible materials within and/or adjacent to adhesives, resins, or composites so as to reversibly or irreversibly bond, bind, or fasten opaque or non-opaque solid materials to one a... | 10/28/2003 |
| 6617557 | Apparatus for RF active compositions used in adhesion, bonding, and coating An RF heating system. In one aspect of the present invention, the RF heating system includes a first elongated electrode connected to a first node within an impedance matching circuit and a second elongated electrode connected to a second node within the ... | 09/09/2003 |
| 6582659 | Equipment for clinical examination A clinical test apparatus includes a reaction table (1) for placing a test piece thereon for reaction of the test piece with an analyte at a predetermined temperature to perform analysis. The clinical test apparatus includes a primary coil (3) fixed, as m... | 06/24/2003 |
| 6522846 | Fixing device having connection member for supplying AC current to an electromagnetic induction coil An electrophotographic fixing device allowing a flow of an AC current through an electromagnetic induction coil arranged close to a heating roller having a metal layer formed of a conductor and allowing the heat generation of the heating roller to heat a ... | 02/18/2003 |
| 6472748 | System and method for providing MMIC seal A system and method for maintaining desired circuit component attributes is shown. According to a preferred embodiment, a high frequency circuit component, such as a MMIC, is retained in a circuit using a degradeable material, such as silver filled epoxy,... | 10/29/2002 |
| 6373035 | Induction-heating roller device A relay box is fastened to the end of a support rod supporting an induction heating mechanism, which the end is extended outside. Receptacles of connectors are mounted on a surface of the relay box. Lead wires connected to the induction coils are connecte... | 04/16/2002 |
| 6316755 | Method and apparatus for producing power for an induction heating system An induction heating power supply is disclosed. It includes a power circuit having at least one switch and a power output. The output circuit includes an induction head. The output circuit is coupled to the power output. A controller has at least one feed... | 11/13/2001 |
| 6211498 | Induction heating apparatus and transformer Induction heating apparatus has a series inductor between an AC source and a parallel tank circuit. The source has an output transformer which has a leakage inductance, viewed from the secondary, no larger than ##EQU1## where VLmin is a desired... | 04/03/2001 |
| 6163019 | Resonant frequency induction furnace system using capacitive voltage division An induction furnace having a voltage source series inverter, a load circuit having a combination of an induction coil and a resonating capacitor bank, and control circuitry to phase lock the inverter frequency to the natural resonant frequency of the loa... | 12/19/2000 |
| 5783921 | Welding robot with base stand having self contained welding power source A robot body has an articulated manipulator arm having a welding tool. The robot body is installed on a base stand housing electric circuits including a welding power source. The electric circuits provide for driving and controlling the welding tool. The ... | 07/21/1998 |
| 5690851 | Induction heating apparatus for drink can A drink can induction heating apparatus includes a ferrite core having a plurality of projected portions and recesses formed between the adjacent projected portions. When a drink can is set in a position to be heated, each of the projected portions is ori... | 11/25/1997 |
| 5678237 | In-situ vitrification of waste materials A method for the in-situ vitrification of waste materials in a disposable can that includes an inner container and an outer container is disclosed. The method includes the steps of adding frit and waste materials to the inner container, removing any exces... | 10/14/1997 |
| 5660753 | Apparatus for high frequency induction heating for the removal of coatings from metal surfaces An apparatus for heating a metal surface to remove a nonferrous thermosetting resin coating bonded to the metal surface. The apparatus uses a power supply device for providing an approximately 75-100 kW signal at approximately 10-40 kHz to the apparatus. ... | 08/26/1997 |
| 5658482 | Induction cooker with reduced parasitic radiation An induction cooker comprises at least one cooking heater comprising an inductor, a generator delivering a AC current to supply the inductor and an element made of a non-magnetic, electrically conductive material to provide shielding against the disturban... | 08/19/1997 |
| 5584419 | Magnetically heated susceptor A method and apparatus are provided for heating a solid material and dispensing the material as a liquid. A central housing has an inlet, a dispensing orifice and a flow passage extending through the central housing for passing the material from the inlet... | 12/17/1996 |
