H01F 27 - Details of transformers or inductances, in general

Patents for H01F 27 - Details of transformers or inductances, in general (43,362)
11/2004
11/02/2004	US6812819 Inductive element of an integrated circuit
11/02/2004	US6812818 High voltage transformer
11/02/2004	US6812713 Internal fault indicator for power electrical devices
11/02/2004	US6810868 Ignition coil for internal combustion engine
11/02/2004	US6810580 System for forming conductor wire on a substrate board
11/02/2004	CA2279271C Through-hole interconnect device with isolated wire-leads and component barriers
10/2004
10/28/2004	WO2004093104A1 Booster transformer for driving magnetron and transformer unit having the booster transformer
10/28/2004	US20040213021 Method and apparatus for substantially reducing electrical earth displacement current flow generated by wound components
10/28/2004	US20040212476 Transformer
10/28/2004	US20040212475 Inductor or transformer having a ferromagnetic core that is formed on a printed circuit board
10/28/2004	US20040212473 Electromagnetic coil assembly and electromagnetic actuator
10/28/2004	US20040212319 High-voltage transformer and discharge lamp driving apparatus
10/28/2004	US20040212039 Semiconductor device
10/28/2004	US20040211058 Method and device to produce a transponder
10/28/2004	DE10315539A1 Gradient coil for a magneto resonance image scanner for e.g. medical examination with insulation layers having raised portions between which resin flows
10/27/2004	EP1471544A1 Method and device to produce a transponder
10/27/2004	EP1470948A1 Traction transformer and method for monitoring an operating status of a traction transformer
10/27/2004	CN2651950Y Large-current sleeving connecting structure
10/27/2004	CN2651910Y High-voltage coil end structure of transformer
10/27/2004	CN2651909Y Double-layer cylinder coil
10/27/2004	CN2651908Y Core structure of single 12 phase bridge rectification transformer
10/27/2004	CN2651907Y Iron-core structure of three-phase reactor with magnetic core
10/27/2004	CN2651906Y Main hanger of upper segment oil tank
10/27/2004	CN2651905Y Heat-proof structure of duct oil tank
10/27/2004	CN2651904Y Automatic gas discharging valve
10/27/2004	CN2651903Y Iron-core pad foot device of transformer
10/27/2004	CN2651902Y Iron-core pad foot sleeper of transformer
10/27/2004	CN1541444A Electronic device and method of testing and of mfg.
10/27/2004	CN1540692A 镀覆接线端 Plated terminals
10/27/2004	CN1540691A High voltage transformer and discharge driving device
10/27/2004	CN1540690A Reversed phase transformer and structure of iron core
10/27/2004	CN1173594C Electronic circuit unit
10/27/2004	CN1173376C Manufacturing method for coil embedded compressed-core and coil embedded compressed-core
10/26/2004	US6809624 Integrated bobbin transformer assembly
10/26/2004	US6809622 Coil Device
10/26/2004	US6809621 Internal combustion engine ignition coil, and method of producing the same
10/26/2004	US6809620 Transformer core
10/26/2004	US6808669 Method of manufacturing a high voltage transformer for microwave oven
10/26/2004	CA2435505C Rac cooling
10/26/2004	CA2094886C Transformer winding
10/21/2004	WO2004091086A1 Switched-mode power supply unit
10/21/2004	WO2004091052A2 Method and apparatus for substantially reducing electrical displacement current flow between input and output circuits coupled to input and output windings of an energy transfer element
10/21/2004	WO2004090919A1 Rotating transformer
10/21/2004	WO2004090917A1 Bushing for transformers
10/21/2004	US20040209120 Composite magnetic body, and magnetic element and method of manufacturing the same
10/21/2004	US20040208032 Microminiature power converter
10/21/2004	US20040207954 Composite magnetic body, and magnetic element and method of manufacturing the same
10/21/2004	US20040207503 Self-damped inductor
10/21/2004	US20040207501 Coil member, method and system for manufacturing same, tooth member, core, and rotary electric machine
10/21/2004	US20040207500 Magnetic core including magnet for magnetic bias and inductor component using the same
10/21/2004	DE10314063A1 Aufsteckbare Stabzündspule Push-rod ignition coil
10/20/2004	EP1469700A2 A coil for an electroacoustic transducer
10/20/2004	EP1469488A1 Electric component and its production method
10/20/2004	EP1468431A1 Inductive device
10/20/2004	CN2650304Y High-voltage winding structure for transformer
10/20/2004	CN2650303Y Improvement of transformer for microwave oven
10/20/2004	CN1539150A Planar inductive component and planar transformer
10/20/2004	CN1172330C Method of manufacturing inductors
10/20/2004	CN1172328C Power supply device for transformer unit
10/19/2004	US6806805 Low loss high Q inductor
10/19/2004	US6806803 Transformer winding
10/19/2004	US6806794 Noise filter
10/19/2004	US6804882 Method for manufacturing a coil device
10/19/2004	US6804876 Method of producing chip inductor
10/17/2004	CA2464600A1 Electrical structural part
10/14/2004	WO2004088688A1 Composite electronic component
10/14/2004	WO2004088679A2 Air de-humidifier for oil-insulated transformers, choke coils and step switches
10/14/2004	US20040201134 Forming method of magnetic body, magnetic body, and printed circuit board
10/14/2004	CA2520989A1 Dehumidifier for oil-insulated transformer, choke coil, and tap changer
10/13/2004	CN2648571Y High voltage trigger transformer used for camera or cell phone flash lamp circuit
10/13/2004	CN2648568Y Variable frequency driving rectifier transformer
10/13/2004	CN2648567Y Safety high voltage distribution transformer
10/13/2004	CN2648566Y Cascade-connected high voltage pulse transformer
10/13/2004	CN1536593A Laminated transformer
10/13/2004	CN1536592A Radiating method of taminated iron core and its structure
10/13/2004	CN1536591A Common mode wave filter
10/13/2004	CN1536588A Coil structure for magnetic resonance imaging
10/13/2004	CN1171254C Single multi-function high voltage electric connector and protecting apparatus containing the same connector
10/13/2004	CN1171253C High self resonant frequency multilayer inductor
10/13/2004	CN1171252C Coil
10/13/2004	CN1171251C Transformer
10/12/2004	US6804092 Device for prevention against explosion of electrical transformers
10/12/2004	US6803726 Noise filter of high frequency generator
10/12/2004	US6803526 Insulating device
10/07/2004	WO2004086429A1 Pressure ring for clamping transformer coils and procedure and equipment for the production of pressure rings
10/07/2004	WO2004086428A1 Procedure for the preparation of the supporting structure between the iron core and the core tube of transformers
10/07/2004	WO2004085837A1 Attachable rod ignition coil
10/07/2004	US20040196668 Method and apparatus for substantially reducing electrical displacement current flow between input and output circuits coupled to input and output windings of an energy transfer element
10/07/2004	US20040196131 Inverter transformer and core structure thereof
10/07/2004	US20040196129 Circuit to mitigate transformer shorted turn
10/07/2004	US20040196128 Electrical reactor assembly having center taps
10/07/2004	US20040196125 Iron core, iron core manufacturing method, alignment apparatus, and exposure apparatus
10/07/2004	US20040195000 Microreplication in ceramics
10/07/2004	DE202004011868U1 Electrical coil has coil former with formed locations for the wire ends that provide secure retention
10/06/2004	EP1465218A1 Noise filter, outdoor unit, and air conditioner
10/06/2004	EP1464979A1 Coil structure for magnetic resonance imaging
10/06/2004	EP1464062A1 Coupling device
10/06/2004	CN2646842Y Industrial frequency testing transformer without partial discharge contamination
10/06/2004	CN2646841Y 高压变压器装置 High-voltage transformer unit
10/06/2004	CN2646839Y 高压变压器装置 High-voltage transformer unit

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