H01F 27 - Details of transformers or inductances, in general

Patents for H01F 27 - Details of transformers or inductances, in general (43,362)
01/1995
01/03/1995	US5378297 Ferrite chip bead and method for making same
12/1994
12/28/1994	CN2186434Y 卷绕铁芯 Wound core
12/27/1994	US5376912 Combined transformer and inductor
12/27/1994	US5376911 Choke coil
12/21/1994	EP0629872A1 C-shaped superconducting magnet
12/21/1994	EP0629871A1 Pole face design for a C-shaped superconducting magnet
12/21/1994	EP0629311A1 Coil for high-voltage transformer.
12/21/1994	CN2185919Y Distribution transformer with anti-sealing electricity function
12/21/1994	CN2185918Y Built-in power transformer for lightning arrester
12/20/1994	US5374907 Chip type of noise suppressing filter for suppressing noise electromagnetically generated and method for manufacturing the filter
12/14/1994	EP0629113A1 Gasket assembly for sealing electromagnetic waves
12/14/1994	CN2185467Y Small energy-saving transformer
12/13/1994	US5373277 Signal discriminator
12/13/1994	US5373276 Self centering coil
12/13/1994	CA1333450C High frequency oscillatory circuit
12/08/1994	WO1994028566A1 Partial discharge passive monitor
12/08/1994	WO1994028561A1 A bobbin capable of reliably insulating a first coil from a second coil
12/08/1994	WO1994028429A1 Method and device for measuring the dynamic components of an electric current in the presence of a continuous component
12/08/1994	DE4318130A1 Ignition coil for internal combustion engines
12/07/1994	CN2184973Y Middle and high voltage coil grating multi-groove framework of commercial frequency induction transformer
12/07/1994	CN2184971Y Reactor with conductor layer contour enveloping insulation
12/07/1994	CN2184970Y Single shunt circuit induction type meon lamp transformer
12/07/1994	CN2184969Y Anti-stealing electricity transformer
12/06/1994	US5371486 Transformer core
12/06/1994	US5371325 Insulation system for magnetic devices
12/06/1994	US5370766 Forming conductive layer on substrate, forming patterned dielectric layer thereon, formed patterned thin film conductor above the dielectric layer to provide inductor
12/01/1994	DE4318348A1 Arrangement for guidance and for protection of electrical cables (lines, leads) which are arranged on the outside of a tank of a transformer or of similar large electrical apparatuses
11/1994
11/30/1994	EP0626797A1 Tubing shape, particularly for fabricating an induction coil
11/30/1994	EP0626587A1 A shimming system for a C-shaped superconducting magnet
11/30/1994	EP0442986B1 Ignition coil
11/30/1994	CN2184248Y Tilted angle indication metrallic expander
11/30/1994	CN2184247Y Water discharging installation for transformer
11/30/1994	CN1095855A 3-phase symmetrically-inputting single phase power supply transformer
11/30/1994	CN1095854A Circuit wave filter
11/29/1994	US5369389 Transformer comprising a plastics coil former
11/29/1994	US5368929 High temperature insulation for liquid-filled transformers
11/24/1994	WO1994027305A1 Lead-out insulation for power transformers
11/24/1994	WO1994027304A1 Liquid-cooled valve choke
11/24/1994	DE4326358C1 Induction coil for use as an electromagnetic induction transducer (hearing coil) in electrical hearing aids
11/23/1994	EP0625794A1 Illumination unit, electrodeless low-pressure discharge lamp, and coil suitable for use therein
11/23/1994	EP0625786A2 Nano-crystalline soft magnetic alloy ribbon with insulation coating; magnetic core therefrom and applications therewith
11/17/1994	EP0624886A1 Sintered transformer or inductor core of NiZn ferrite material
11/17/1994	DE4343930A1 X-ray generator
11/17/1994	DE4241656A1 Method for connecting a winding outgoer of a transformer to a bushing conductor
11/15/1994	US5363548 Sheet-wound coils
11/09/1994	CN2182447Y Metal bellows oil conservator
11/09/1994	CN1094792A Secondary winding bobbin for an ignition coil for an internal combustion engine
11/08/1994	US5363286 High voltage generator
11/08/1994	US5363081 Line transformer and manufacturing process thereof
11/08/1994	US5363079 Protective snap-together enclosure for current transformers
11/08/1994	US5362925 Multi-layered insulated wire for high frequency transformer winding
11/08/1994	CA2024142C Balun transformers
11/03/1994	DE4314823A1 Gas-insulated, high-voltage (high-tension) switching installation having a current transformer
11/02/1994	EP0622848A1 Chip-type circuit component and method of manufacturing the same
11/02/1994	CN2181736Y Low voltage transformer
11/02/1994	CN2181735Y Single-T and double-L combination core plate
11/01/1994	US5361057 Ignition coil for internal combustion engine
11/01/1994	US5359982 Ignitor for an internal combustion engine
10/1994
10/26/1994	EP0620947A1 Ignition coil assembly and method of manufacture thereof.
10/26/1994	CN2181070Y Electronic transformer for quartz lamp
10/25/1994	US5359314 Core and coil assembly for an amorphous-steel cored electric transformer
10/25/1994	US5359313 Step-up transformer
10/25/1994	US5359311 Solid inductor with vitreous diffused outer layer
10/20/1994	DE4312194A1 Insulation parts kit for transformers
10/20/1994	DE4312138A1 Covering for a transformer winding
10/19/1994	EP0620573A2 Flux spreading thin film magnetic devices
10/19/1994	EP0619922A1 Reconstruction of saturated current transformer signals
10/18/1994	US5357226 Noise filter
10/13/1994	WO1994023436A1 Self centering coil
10/12/1994	EP0619586A1 Electrical energy-transforming equipment
10/12/1994	CN2179624Y Spot-welder transformer
10/12/1994	CN1093490A Double wattage series energy-saving lamp and the ballast for same
10/12/1994	CN1093488A Full closed type energy-saving voltage transformer
10/12/1994	CN1093487A Stationary induction apparatus
10/11/1994	US5355109 Electric noise absorber
10/06/1994	DE4310199A1 Three-phase transformer
10/05/1994	EP0618596A1 Air core reactor
10/05/1994	CN2178934Y Improves structure of I-shaped magnet core
10/05/1994	CN1093189A Detection tag
10/04/1994	US5353001 Hybrid integrated circuit planar transformer
10/03/1994	CA2120434A1 Transformer mounting assembly
09/1994
09/29/1994	DE4310056A1 Method for the production of an inductive component
09/29/1994	DE4309768A1 Plastic housing for an electrical component, especially a relay
09/28/1994	EP0617438A1 An ignition coil and a method for the manufacture thereof
09/28/1994	CN2178379Y Double sealing device for flame-proof glass of transformer
09/28/1994	CN1092902A Stationary induction apparatus
09/27/1994	US5351167 Self-leaded surface mounted rod inductor
09/27/1994	US5351017 Fixing device for a noise absorber
09/27/1994	US5349743 Method of making a multilayer monolithic magnet component
09/27/1994	CA1332140C Method and apparatus for reclassification of electrical apparatus contaminated with pcb
09/22/1994	DE4308974A1 Cooling system for high-power power supply units and high-power coils
09/21/1994	EP0616341A1 Stationary induction apparatus
09/20/1994	US5349320 Ignition coil for internal combustion engines
09/20/1994	US5349144 Transformer connector
09/20/1994	US5349131 Electrical wiring material and transformer
09/20/1994	US5347706 Method for making packets of amorphous steel strip for transformer core manufacture
09/18/1994	CA2116899A1 Method of manufacturing a strip wound coil to reinforce edge layer insulation
09/18/1994	CA2116808A1 Method of manufacturing a laminated coil to prevent expansion during coil loading
09/18/1994	CA2116751A1 Dry-type transformer and method of manufacturing
09/14/1994	EP0615261A1 Method of making an inductive component having increased noise reduction and reduced stress susceptibility

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