Patents for H01F 27 - Details of transformers or inductances, in general (43,362)
01/2005
01/19/2005CN2672817Y Horizontal mounted small transformer
01/19/2005CN1567487A Three-phase stereo spiral iron core transformer
01/19/2005CN1185775C Rotating electrical machine comprising high-voltage stator winding and slender supporting device for supporting winding and method for manufacturing such machine
01/18/2005US6844804 Method of manufacturing discrete electronic components
01/18/2005US6844802 Parallel core electromagnetic device
01/18/2005US6844731 Magnetic resonance gradient coil system containing latent heat storage material which undergoes a phase transition during operation
01/13/2005WO2005004180A1 Transformer apparatus, method for manufacturing the same, and high-frequency heating device having the same
01/13/2005WO2005004179A1 Method of cooling an oil immersed electrical machine using a heat pump
01/13/2005WO2005004178A1 Hybrid air/magnetic core inductor
01/13/2005WO2005004176A1 High-frequency heating device
01/13/2005WO2005004175A1 Method for treating end of coil and bobbin used therefor
01/13/2005US20050010014 LCT-epoxy polymers with HTC-oligomers and method for making the same
01/13/2005US20050009958 Homogeneous alumoxane-LCT-epoxy polymers and methods for making the same
01/13/2005US20050007231 High voltage bobbin of fly-back transformer
01/13/2005US20050007230 Leakage transformer
01/13/2005US20050007090 Method and apparatus for transferring energy in a power converter circuit
01/13/2005US20050007029 Inverter transformer and inverter circuit
01/13/2005US20050006367 Power source for high current welding
01/13/2005US20050006366 Transformer module for a welder
01/13/2005US20050005673 Ferrite system
01/13/2005US20050005424 Method of manufacturing planar inductors
01/13/2005DE10328986A1 Compensation of temperature coefficient of coil constant of an electromagnetic solenoid has current flow of additional coil controlled to be proportional to current in main coil and to temperature of windings of main coil
01/12/2005EP1496730A2 Improving connectivity of multiple parallel conductors
01/12/2005EP1496596A1 Stator of rotating electric motor
01/12/2005EP1496595A2 Electric conductor assembly with integrated optical fibres
01/12/2005EP1496527A1 Transformer module for a welder
01/12/2005EP1496526A2 Method and apparatus for transferring energy in a power converter circuit
01/12/2005EP1496523A1 Homogeneous Alumoxane-LCT-Epoxy polymers and method for making the same
01/12/2005EP1496522A1 LCT-epoxy polymers with HTC-oligomers and method for making the same
01/12/2005EP1495476A1 Self-leaded surface mount component holder
01/12/2005EP1495475A1 Low profile magnetic element
01/12/2005EP1495187A1 High temperature paper
01/12/2005CN2671095Y H-stage drying electrical transformer structure
01/12/2005CN2671094Y Navigation aid light separated transformer
01/12/2005CN2670910Y Approach sensor with improving positioning accuracy of testing coil circumferential member
01/12/2005CN1564278A Encapsulating ballast
01/12/2005CN1564277A High efficiency low leakage intermediate-frequency power transformer and its mfg. method
01/12/2005CN1184738C Stacked electronic element
01/12/2005CN1184715C Multi-layer LC composition unit
01/11/2005US6842718 Intelligent auxiliary cooling system
01/11/2005US6842102 Electromagnetic coil assembly for electromagnetic apparatus
01/11/2005US6842101 Tunable inductor
01/11/2005US6842100 High voltage transformer for microwave oven and method of manufacturing therefor
01/11/2005US6842099 Rod coil for ignition systems
01/11/2005US6839955 Manganese dioxide of 0.02-0.1 wt % and bismuth trioxide of 0.5-1.2 wt % are added to a paste of main constituent silver to be used with internal conductors, and paste is baked together with spinel ferrite
01/11/2005CA2462464A1 Transformer module for a welder
01/06/2005WO2005001857A1 Transformer with protection against direct current magnetization caused by zero sequence current
01/06/2005WO2005001854A2 Method for manufacturing a transformer winding
01/06/2005WO2005001853A2 Method and apparatus for cooling magnetic circuit elements
01/06/2005WO2004068637A3 Electrical bushing comprising an upper part which forms an inclined appendage and production method thereof
01/06/2005US20050003199 Resin composition, cured resin, sheet-like cured resin, laminated body, prepreg, electronic parts and multilayer boards
01/06/2005US20050002206 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
01/06/2005US20050001709 Inductive device and methods for assembling same
01/06/2005US20050001707 Gapped core structure for magnetic components
01/06/2005US20050001706 Low power cosuming current measurements for high currents
01/06/2005US20050001705 Surface mount inductor
01/06/2005US20050001702 Electromechanical valve actuator
01/06/2005US20050000356 Dehydrating breather apparatus and method
01/05/2005EP1494033A1 Low power consuming current measurements for high currents
01/05/2005DE10322628A1 Producing suction surface on electrical surface mount component, especially coil, involves pressing component onto adhesion-compatible material on band while pre-hardening, releasing, final hardening
01/05/2005CN2669333Y Transformer coil insulated in segment
01/05/2005CN2669332Y Box-type transformer
01/05/2005CN2669331Y Oil-injection device of fully-sealed corrugated oil tank type electric transformer
01/05/2005CN1560974A Method for controlling surge when transformer switch-on using split-phase switch-on and its circuit
01/05/2005CN1560883A Start and operation changable power supply unit for large loading of electric machine
01/05/2005CN1560882A Tranformer cooling device and manufacturing method for microwave oven
01/05/2005CN1183559C Tap converter
01/04/2005US6838970 Inductor for integrated circuit
01/04/2005US6838968 Transformer with forced liquid coolant
12/2004
12/30/2004US20040264521 Method and apparatus for cooling magnetic circuit elements
12/30/2004US20040263310 On-chip inductor with magnetic core
12/30/2004US20040263306 Inductive component and method of manufacturing same
12/30/2004US20040263305 Hybrid air/magnetic core inductor
12/30/2004US20040263285 Common-mode filter
12/30/2004US20040263276 System and method for suppressing radio frequency (rf) radiation
12/30/2004US20040262558 One-piece coil conduit
12/30/2004US20040261252 Method for manufacturing a transformer winding
12/30/2004DE10323099A1 Winding of coils of conductors on prepreg insulating carriers uses a high winding tension to force resin to flow into gaps on subsequent heat treatment
12/29/2004WO2004114507A2 Three-phase transformer
12/29/2004WO2004114499A2 Parallel core electromagnetic device
12/29/2004WO2004114332A2 Low voltage composite mold
12/29/2004WO2004100194A3 On-die micro-transformer structures with magnetic materials
12/29/2004EP1490882A1 Low profile high current multiple gap inductor assembly
12/29/2004CN2667629Y Low power consumption AC hollow foil type reactor
12/29/2004CN2667627Y Large power middle frequency transformer
12/29/2004CN2667626Y Ballast case used for ultraviolet ray sterilizing system
12/29/2004CN1558428A Voltage transformer arrangement
12/29/2004CN1182553C Transformer
12/29/2004CN1182549C Method for preparing magnanese-zinc ferrite magnetic core
12/29/2004CA2527768A1 Low voltage composite mold
12/28/2004US6836534 High voltage transformer
12/28/2004US6834644 Circular ignition coil assembly
12/23/2004WO2004112064A1 Magnetic core and device with cooling capabilities
12/23/2004US20040257190 Planar transformer comprising plug-in secondary windings
12/23/2004US20040257189 Thin Transformer
12/23/2004US20040257188 Three-phase transformer
12/23/2004US20040257187 Parallel core electromagnetic device
12/23/2004US20040257035 Combination of power supply and detachable electric implement
12/23/2004DE10326685A1 Vorrichtung zum Absorbieren des Rauschens Apparatus for absorbing the noise
12/23/2004DE10315719B3 Luftentfeuchter für ölisolierte Transformatoren, Drosselspulen sowie Stufenschalter Dehumidifier for oil-insulated transformers, inductors and tap changer