Patents for H01F 27 - Details of transformers or inductances, in general (43,362)
11/2004
11/25/2004DE19738588B4 Elektrisches Bauelement mit einer Umhüllung und mit einem in der Umhüllung angeordneten Anschlußbereich und Verfahren zur Herstellung eines solchen elektrischen Bauelements Electrical component with a casing and with, disposed in the enclosure terminating region and methods for manufacturing such electrical component
11/25/2004DE10317739A1 Elektrisches Bauteil und Verfahren zu dessen Herstellung Electrical component and method for its production
11/24/2004EP1480504A1 Shielding apparatus
11/24/2004EP1480500A1 Power supply circuit with three dimensionally arranged circuit boards and method of manufacture
11/24/2004EP1480244A2 A device for containing current-sensor means
11/24/2004CN2659083Y Transformer and transformer unit with the transformer
11/24/2004CN2658920Y Multi-winding high voltage frequency change power source transformer
11/24/2004CN2658919Y Transfermer with overheat protective device
11/24/2004CN2658918Y Frequency-selecting type reactor
11/24/2004CN2658917Y Conductive rod type transformer casing
11/24/2004CN2658916Y 变压器矽钢片 Transformer laminations
11/24/2004CN1549282A Transformer structure
11/24/2004CN1549281A Transformer cooling fan controlling apparatus
11/24/2004CN1177401C Surface mounting type switching mains and its mounting method
11/24/2004CN1177338C Transformer
11/24/2004CN1177337C Iron-core material iron-core and transformer for balancing-non-balancing transformer
11/24/2004CN1177336C Noise filter, anti-noise electronic device
11/24/2004CN1177331C Self-melting adhered insulating wire and self-melting adhered twisted wire using same
11/23/2004US6822845 Low profile filter
11/23/2004US6822549 Method for increased coupling coefficient in a pulse type transformer through coil configuration and varied core area
11/23/2004US6822547 Current transformer
11/23/2004US6822546 Transformer arrangement for combined pots and xDSL service
11/23/2004US6822545 Integrated circuit inductors
11/23/2004US6822434 Monolithic transformer compensated circuit
11/23/2004US6822363 Electromagnetic device
11/23/2004CA2240890C Vegetable oil based dielectric coolant
11/18/2004WO2004100619A1 Lamp driver
11/18/2004WO2004100194A2 On-die micro-transformer structures with magnetic materials
11/18/2004WO2004100193A1 Conductor element arrangement
11/18/2004WO2004100192A1 Transformer
11/18/2004US20040227606 Stacked cores and the heat dissipation method for the same
11/18/2004US20040227604 Solenoid with noise reduction
11/18/2004US20040227596 Ultra broadband inductor assembly
11/17/2004EP1477996A1 Three phase choke coil with reduced emission of electromagnetic energy in the environment
11/17/2004EP1476884A1 Electrical machine
11/17/2004EP1476883A1 Medium frequency transformer
11/17/2004EP1050093A4 Paired multi-layered dielectric independent passive component architecture resulting in differential and common mode filtering with surge protection in one integrated package
11/17/2004CN2657177Y High frequency transformer
11/17/2004CN2657174Y Low voltage power electricity-saving device
11/17/2004CN1547217A Ceramic insulation piece and method for preparing same
11/17/2004CN1176475C Electronic element with coil
11/16/2004US6819214 Component core with coil terminations
11/16/2004US6819213 Inductive device
11/16/2004US6819096 Power measurement mechanism for a transformer coupled plasma source
11/16/2004US6818823 Quick installing, electric chime and back box
11/16/2004US6817729 Beacon system with enhanced insulation and sealing
11/16/2004US6817087 Integrated circuit inductors
11/11/2004WO2004097864A2 Coil device
11/11/2004US20040223350 Low output noise switch mode power supply with shieldless transformers
11/11/2004US20040222874 Electric component and method of producing the same
11/11/2004US20040222873 Transformer assembly, and power conversion apparatus and solar power generation apparatus using the same
11/11/2004US20040222872 High voltage transformer and microwave oven provided with the same
11/11/2004US20040222774 Switched-mode power supply with a power factor correction circuit as well as a coil for correction circuit for this purpose
11/11/2004US20040222708 Electric oscillatory machine
11/11/2004US20040222492 On-die micro-transformer structures with magnetic materials
11/11/2004DE10347054A1 Schaltnetzteil Switching power supply
11/10/2004EP1475812A2 Electric component and method of producing the same
11/10/2004EP1475811A2 Electric component and method of producing the same
11/10/2004EP1475810A1 High voltage transformer and microwave oven provided with the same
11/10/2004EP1475809A2 Transformer assembly, and power conversion apparatus and solar power generation apparatus using the same
11/10/2004EP1475808A1 Powder magnetic core and high frequency reactor using the same
11/10/2004EP1474814A1 Former and coil for printed circuit board assembly
11/10/2004EP1354496B1 An electroacoustic transducer
11/10/2004EP1344230B1 Medium frequency transformer
11/10/2004CN2655400Y Improvement of transformer frame structure
11/10/2004CN2655395Y Coil winded by flat enamel-covered wire
11/10/2004CN1545756A Switched-mode power supply with a power factor correction circuit as well as a coil for a correction circuit for this purpose
11/10/2004CN1545711A Method for manufacturing coil device
11/10/2004CN1545110A Structure-improved coplanar transformer
11/10/2004CN1175617C Network coupling device
11/10/2004CN1175439C Current measuring device and method using current mutual inductor with high transforming ratio
11/10/2004CN1175438C Laminated coil parts and production thereof
11/10/2004CN1175437C Laminated inductor
11/10/2004CN1175436C High stacking factor amorphous metal ribbon and transformer cores
11/09/2004US6816054 Silicon steel core for transformers or choke coils
11/09/2004US6816053 Circuit to mitigate transformer shorted turn
11/09/2004US6815618 Metallic wire
11/04/2004WO2004094178A1 Traction transformer and method for monitoring an operating status of a traction transformer
11/04/2004US20040217841 Device for energy storage and energy transformation
11/04/2004US20040217838 Coil device
11/04/2004US20040217836 Distribution transformer
11/04/2004US20040217826 Network coupler
11/04/2004US20040216723 Ignition coil having a connecting device for contacting a spark plug
11/04/2004US20040216613 Device for reducing the gas and water contamination of transformer oil filling
11/03/2004EP1473979A1 High-frequency layered part and manufacturing method thereof
11/03/2004EP1473744A2 Low profile inductive component
11/03/2004EP1472706A1 Current transformer having an amorphous fe-based core
11/03/2004CN2653658Y Resin insulation dry power transformer of track circular iron core and coil
11/03/2004CN2653657Y Output self regulating power transformer and its stabilivolt regulator
11/03/2004CN2653655Y Rectangular iron core/coil DVD dry transformer
11/03/2004CN2653654Y Electric induction coil seal outer casing
11/03/2004CN1543674A Leadless chip carrier with embedded inductor
11/03/2004CN1543656A Fixing member
11/03/2004CN1542969A 半导体器件 Semiconductor devices
11/03/2004CN1542877A A winding cable capable of reducing loss
11/03/2004CN1542873A Static countermeasure parts
11/03/2004CN1542870A Method for producing electromagnetic wire
11/03/2004CN1174516C Laminated dielectric resonator and laminated dielectric filter
11/03/2004CN1174446C Laminated ceramic electronic parts and its mfg. method
11/03/2004CN1174444C Focus regulator for flyback transformer