Patents for H01F 27 - Details of transformers or inductances, in general (43,362)
11/1998
11/25/1998EP0880226A2 Wirewound balun transformer
11/25/1998EP0880151A2 Choke assembly for a current rectifier
11/25/1998EP0880150A2 Printed wiring board
11/25/1998EP0715764B1 Method of forming an ignition coil assembly
11/25/1998CN2298591Y Gas pressure oil ejector
11/25/1998CN2298590Y Compound cooling means for transformer
11/25/1998CN1200011A Noise absorber
11/25/1998CN1199913A Single-unit bobbin for flyback transformer
11/25/1998CN1199912A Molding structure for flyback transformer
11/25/1998CN1199911A Single body bobbin structure for flyback transformer
11/24/1998US5841335 Choke coil
11/18/1998EP0878810A2 Ignition coil for ignition systems of internal combustion engines
11/18/1998EP0878808A2 Electric transformer station
11/18/1998CN2297785Y Coil insulating lead wire end for transformer
11/18/1998CN2297784Y Cable-through oil filled paper condenser bushing
11/12/1998WO1998050956A1 Patterned ground shields for integrated circuit inductors
11/10/1998US5835367 Distributed plannar-type high voltage transformer
11/10/1998US5834992 LC resonant part with a via hole inductor directly connected to the ground electrode
11/10/1998US5833207 Pad for supporting equipment/electrical cable is connected when in use
11/05/1998DE19718385A1 Heat conducting coating
11/04/1998EP0850483A4 An insulated conductor and process for making an insulated conductor
11/04/1998CN1198269A Device for absorption of electrical noise
11/03/1998US5831800 Miniature transformer for read/write transducer
11/03/1998US5831505 Choke coil
10/1998
10/29/1998DE19715516C1 Air cooling vent e.g. for traction and propulsion motors
10/28/1998EP0874377A2 Transformer with coaxial winding arrrangement
10/28/1998EP0874373A1 Process of making a multiple parallel conductor
10/28/1998EP0873567A1 Distributed gap electrical choke
10/28/1998CN2296065Y Outdoor dry high voltage current and voltage mutual inductor
10/27/1998US5828557 Flyback transformer
10/27/1998US5828283 Apparatus for connecting primary conductive lines of flexible transformer
10/27/1998US5828282 Apparatus and method for shielding a toroidal current sensor
10/22/1998WO1998047158A1 Magnetic assembly for a transformer or the like
10/22/1998DE19716759A1 Plate packet for electrical machines with cooling windows for fluid flow
10/22/1998DE19716758A1 Electrical machine with fluid cooling
10/22/1998DE19716539A1 Electrical coil for a surface mounted device
10/21/1998EP0872858A2 Multiple parallel conductor for windings of electric devices and machines
10/21/1998EP0871966A1 High voltage isolating transformer module
10/21/1998EP0871565A2 Process for preparing an insulated multilayer structure
10/21/1998CN2295267Y Dry hollow series reactor
10/21/1998CN1196561A Multiple parallel conductor
10/14/1998EP0870353A1 Isolated electrical power supply
10/14/1998EP0870309A1 Transformer with superconducting windings
10/14/1998CN2294518Y Distributing power tranformer
10/14/1998CN2294517Y Insulation structure between coil layers
10/14/1998CN2294516Y Assembled winding for transformer
10/14/1998CN1195901A Low-pass filter
10/13/1998US5821844 D.C. reactor
10/08/1998WO1998044520A1 Chip inductor and method for manufacturing the same
10/08/1998WO1998044519A1 Transformer
10/08/1998WO1998044518A1 Chip inductance
10/08/1998WO1998044356A1 Method and device for detecting partial discharges
10/08/1998DE19713147A1 Chip-Induktivität Chip inductor
10/08/1998CA2285025A1 Transformer
10/07/1998EP0869518A1 Choke coil
10/07/1998EP0868731A1 Vegetable oil based dielectric coolant
10/07/1998EP0868233A2 Electromagnetic joining or welding of metal objects
10/06/1998US5817975 Housing with integral mounting bracket
10/06/1998US5817209 Adhesive bording system for bonding laminae to form a laminate
10/01/1998WO1998043259A1 An arrangement at a conductor on high voltage potential
10/01/1998WO1998043257A1 A core for a controllable inductor and a method for producing thereof
10/01/1998WO1998043256A1 A controllable inductor
09/1998
09/30/1998EP0867899A2 Noncontacting power transfer apparatus
09/30/1998CN2293111Y Distribution transformer
09/30/1998CN1194444A Non-contact type power transfer device
09/29/1998US5815062 Magnetic core
09/29/1998US5815061 Low cost and manufacturable transformer meeting safety requirements
09/29/1998US5815060 Inductance element
09/29/1998US5815059 Coaxial isolation mounting of a toroidal transformer
09/29/1998US5814986 Coil retainer/positioner for inductive proximity sensor
09/29/1998CA2024289C Current limiting electrical reactor
09/24/1998WO1998041998A1 A transformer winding structure and profiled conductive strip for the same
09/24/1998WO1998041997A1 Electrical choke
09/24/1998DE19710742A1 Summation current transformer arrangement e.g. for fault-current and difference current circuit-breakers
09/24/1998DE19710462A1 Elektrisches Bauelement, insbesondere Chipinduktivität Electrical component, in particular chip inductor
09/24/1998CA2283899A1 Electrical choke for power factor correction
09/23/1998EP0865656A1 Transformer with divided primary winding used in a blocking-oscillator supply circuit
09/22/1998US5812045 Inverter transformer
09/17/1998WO1998040897A1 Electrical component, specially a chip inductive resistor
09/17/1998DE19811072A1 Interference absorber or damper for mounting on cable of electronic device e.g personal computer, video game device
09/16/1998EP0865048A1 Stackable and cost-reduced transformer with embedded EMI filters
09/16/1998EP0864165A1 High isolation power transformer
09/16/1998EP0864164A1 Current-compensated radio interference suppression reactor with increased leakage inductance
09/16/1998EP0804797B1 Superconducting transformer
09/16/1998CN2291713Y Oil-immersed water-cooled transformer
09/16/1998CN1193409A 变压器 Transformer
09/16/1998CN1193173A Inductor/capacitor combined element with variable capacitance and inductance
09/15/1998US5808536 Power transformer and coupling means therefor
09/15/1998US5808535 High frequency water cooled induction heating transformer
09/11/1998WO1998039783A2 Low profile magnetic component with planar winding structure having reduced conductor loss
09/09/1998EP0863519A2 Core assembly for coil units and method for producing the same
09/09/1998EP0863518A1 Vehicle-lamp lighting-on device
09/09/1998EP0862783A1 Inductive component
09/09/1998CN2290912Y Seamless five-column winding iron-core of three-phase power transformer
09/08/1998US5805431 Surface Mountable transformer
09/08/1998US5805045 Power supply conductor from a conductive foil of a foil winding of a power transformer
09/08/1998US5804959 Shunt core transformer with a second secondary coil comprised of a ferrous material
09/03/1998WO1998038657A1 Electric transformer for traction, the primary winding consisting of tubular conductors through which cooling fluid flows
09/03/1998DE19807382A1 Noise suppression filter for electrical apparatus with transformer
09/03/1998DE19707177A1 Choke coil inductance for electric circuit