Patents
Sitemap › H01 - Basic electric elements › H01F - Magnets; Inductances; Transformers; Selection of materials for their magnetic properties › H01F 27 - Details of transformers or inductances, in general
Patents for H01F 27 - Details of transformers or inductances, in general (43,362)
01/1996
01/09/1996US5481792 Inductor winding method
01/03/1996EP0690464A1 Gas insulated tap changer
01/02/1996US5479695 Method of making a multilayer monolithic magnetic component
01/02/1996CA2033743C Ferrite suppressor case with retaining fingers
12/1995
12/27/1995EP0689214A1 Process of producing a multi-layered printed-coil substrate, printed-coil substrates and printed-coil components
12/27/1995CN2216315Y 镇流器 Ballast
12/27/1995CN1114079A Transformer for arc welder
12/27/1995CN1030592C Mini-transformer
12/26/1995US5479146 Pot core matrix transformer having improved heat rejection
12/19/1995US5477007 Twisted conductor
12/19/1995US5476229 Annular multi layer coil assembly
12/15/1995EP0733264A4 Self centering coil
12/14/1995DE4420002A1 Pot core for inductive components e.g. code-based identification systems
12/13/1995EP0687134A2 Miniaturized transformer and inverter circuit and discharge tube glow circuit including such miniaturized transformer
12/13/1995EP0686985A1 Coil assemblies
12/12/1995US5475347 Compact AC noise filter with ground inductor
12/12/1995US5474309 Gasket assembly for sealing electromagnetic waves
12/07/1995DE19519629A1 Electrical power transformer with profiled coil carrier
12/07/1995DE19519594A1 Electrical transformer with overlapping primary and secondary windings
12/06/1995EP0685857A1 Inductor chip device
12/06/1995CN2214701Y High frequency transformer magnetic core outer shell with externally-connected radiating fin
12/05/1995US5473301 Energy storage inductor apparatus
12/05/1995US5473300 Cable coupling transformer
11/1995
11/30/1995WO1995032511A1 Coil former and electric coil wound thereon
11/30/1995DE4418246A1 Spulenkörper und damit aufgebaute elektrische Spule Bobbin and so constructed electric coil
11/30/1995CA2167812A1 Coil former and electric coil wound thereon
11/29/1995EP0684617A2 Multi-layered insulated wire for high frequency transformer winding
11/29/1995EP0498897B1 Material for electrical wiring and transformer
11/29/1995CN2214035Y Three-phase dry type multi-power transformer
11/29/1995CN2214034Y 配电变压器 Distribution Transformer
11/23/1995DE4426721C1 Circuit for correcting DC voltage component in AC supply voltage
11/22/1995CN2213374Y Terminal for transformer
11/22/1995CN2213373Y Oxide-film aluminium band winding arc welding transformer
11/22/1995CN1112381A Noise absorbing device
11/22/1995CN1112302A Sheet material for electrical insulation, prepreg and electrically insulated coil using the same
11/22/1995CN1112279A Plate inductor
11/21/1995US5469124 Heat dissipating transformer coil
11/16/1995WO1995030991A1 Multiple parallel conductor for windings of electric motors and devices
11/16/1995DE4421915A1 Metal encapsulated fixed choke device
11/16/1995DE4416381A1 Guiding and fastening device for pick-up wires in transformers and choke coils
11/15/1995EP0681758A1 Dc/dc converter for low output voltages
11/15/1995CN2212828Y Voltage drop compensator for secondary loop of voltage transformer
11/15/1995CN2212827Y Winded iron core
11/15/1995CN1111801A Wound core for toroidal transformer
11/14/1995US5466887 Resin-packaged electronic component
11/08/1995CN2212250Y Transformer with hot-tube cooling device
11/07/1995US5464225 Oil leakage preventive method
11/07/1995US5463999 Ignition coil unit for an internal combustion engine and manufacturing method of the same
11/07/1995US5463806 Method for compacting electrical windings equipping transformers
11/02/1995WO1995029493A1 Choke coil
11/02/1995EP0680059A2 Air/liquid cooled metallic turn for high frequency high power charging transformers
11/02/1995EP0680058A2 A composite core designed for inductive coupled transformer probes
11/02/1995EP0680055A1 High frequency transformer having an internally liquid cooled winding
11/01/1995CN2211645Y Water remover for transformer
10/1995
10/31/1995US5463522 Housing and mounting arrangement for thermal protector device
10/31/1995US5463365 Coil
10/31/1995US5462685 Ferrofluid-cooled electromagnetic device and improved cooling method
10/31/1995US5461772 For use in a transformer
10/26/1995WO1995028722A1 Improvements relating to transformers/inductors
10/25/1995EP0678960A1 Method and apparatus for correcting a current signal
10/25/1995EP0678879A1 Lead-through for stem, especially for transformer
10/25/1995CN2211104Y Three-phase isomagnetic circuit transformer
10/24/1995CA2038565C Welding transformer and method of manufacturing same
10/24/1995CA2000467C High-frequency heating apparatus using frequency-converter-type power supply
10/18/1995EP0677856A1 Container for storing an annular magnetic core
10/18/1995CN2210457Y Coil frame for high voltage transformer of level squares
10/18/1995CN2210454Y Casing of dry type transformer for mining with explosion-proof function
10/18/1995CN1110489A A bobbin capable of reliably insulating a first coil from a second coil
10/18/1995CN1030107C 电流测量装置 Current measuring means
10/17/1995US5457872 Method of manufacturing a coil
10/12/1995WO1995027291A1 Choke coil with current-dependent inductance
10/11/1995EP0676862A1 Direct-current impressing circuit
10/11/1995EP0676777A1 Locomotive transformer and winding device therefor
10/11/1995EP0676776A1 Wound core for toroidal transformer
10/11/1995EP0588804B1 Coil core with earth contact
10/11/1995CN2209826Y Small power printed circuit board erection welding power transformer
10/05/1995DE4411645A1 Drosselspule mit stromabhängiger Induktivität Inductor with inverse inductance
10/04/1995EP0675560A1 Low-pass filter
10/04/1995EP0675513A1 Chip inductor
10/04/1995EP0674803A1 Air-cooled magnetic cores
10/04/1995CN2209380Y Bellows expander
10/04/1995CN1109629A Three phase changing into four phase balance transformer
10/03/1995US5455553 Distribution transformers
10/03/1995US5455552 Ferrite common mode choke adapted for circuit board mounting
10/03/1995US5455551 Integrated temperature sensing duct spacer unit and method of forming
10/03/1995US5455392 Insulated winding, together with process and semi-finished product for the production thereof
10/02/1995EP0730778A4 Flexible transformer apparatus particularly adapted for high voltage operation
09/1995
09/28/1995WO1995024050A3 Current transformer for a bar-type conductor
09/27/1995CN2208738Y Magnetic core with composite structure
09/20/1995EP0673044A2 Multi-layered insulated wire for high frequency transformer winding
09/20/1995CN2208267Y Water cooling transformer
09/20/1995CN2208266Y Screwed conductive rod for transformer
09/20/1995CN1108790A 电感元件 Inductive element
09/20/1995CN1029812C Choke coil device for electromagnetic range
09/14/1995DE4408636A1 Test system for testing sealing of pref. open liquid tanks exposed to weather
09/14/1995DE19507941A1 Three core cord for electric machine and apparatus windings
09/13/1995EP0671749A1 Planar winding transformer
09/13/1995EP0671748A1 Heat exchanger for vessel of an immersed electric transformer
09/13/1995EP0671064A1 Cable lead-in for electrical equipment
09/13/1995EP0671050A1 Core-form transformer with liquid coolant flow diversion bands
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