Patents for H01F 37 - Fixed inductances not covered by group (2,202)
09/2001
09/13/2001US20010020828 Electrical device and unit consisting of an electrical device and lamp diffuser
09/12/2001EP1132683A2 Electrical apparatus, component of an electrical apparatus and a lamp fixture
09/06/2001US20010018794 Integrated circuit inductors
08/2001
08/30/2001US20010017582 Multilayer inductor
08/30/2001US20010016976 Integrated circuit inductors
08/29/2001CN2445413Y Mutual-inductance power reactor
08/22/2001CN1309399A Multilayer inductor
08/16/2001US20010013819 Output choke for D.C. welder and method of using same
08/16/2001EP1123550A1 Device for attenuating parasitic voltages
08/14/2001US6275132 Inductor and method of manufacturing same
08/09/2001US20010011938 Output choke for D.C. welder and method of using same
08/09/2001DE10010356C1 Elektrisches Gerät sowie Baueinheit aus einem elektrischen Gerät und einer Lampenwanne Electrical equipment and assembly of an electrical device and a lamp trough
07/2001
07/19/2001WO2001052282A1 Line filter
07/10/2001US6259346 Electric noise absorber
06/2001
06/27/2001CN2437025Y Circular shape inductor with gas gap
06/21/2001WO2001045118A1 Inductor core-coil assembly and manufacturing thereof
06/19/2001US6249202 Inductance element
06/05/2001US6240622 Integrated circuit inductors
05/2001
05/23/2001CN1296726A Circuit arrangement
05/23/2001CN1296628A Inductor coil structure and method for making same
05/02/2001EP1095383A1 Inductive resistor system
05/02/2001CN1065375C Harmonic current attenuation device for electric motor
04/2001
04/25/2001CN1292560A Inductive element and manufacturing method, and buffer circuit using said inductive element
04/19/2001DE10046061A1 Manufacturing inductor whose outer electrodes are located in stipulated region of shaped magnetic material
04/11/2001CN1290947A Common-mode choke mounted on lining and its producing method
04/10/2001US6215386 Coil device
04/04/2001EP1089302A1 Substrate-mounted common mode choke coil and method of manufacture thereof
03/2001
03/29/2001WO2001022446A1 Split inductor with fractional turn of each winding and pcb including same
03/28/2001CN1289179A General filter
03/21/2001EP1085533A1 Common mode filter
03/20/2001US6204744 High current, low profile inductor
03/07/2001EP1080477A1 Inductor coil structure and method for making same
03/07/2001CN1286481A Inductance device
03/06/2001US6198375 Inductor coil structure
02/2001
02/28/2001CN2421720Y Non-iron yoke core type reactor
02/27/2001US6194684 Output choke for D.C. welder and method of using same
02/21/2001EP1077018A1 Circuit arrangement
02/14/2001CN2419670Y Hollow reactor with parallel cylinders
01/2001
01/24/2001CN2416587Y Reactor
01/24/2001CN2416586Y Dry hollow reactor
01/03/2001EP1065680A2 Inductance element and manufacturing method thereof, and snubber using thereof
01/03/2001CN2413352Y Open air-gap ring inductor
11/2000
11/29/2000CN1275045A High-efficiency fluorescent tube electronic ballast
11/09/2000WO2000067265A1 Inductive resistor system
11/07/2000US6144279 Electrical choke for power factor correction
10/2000
10/19/2000DE19920268C1 Inductive device e.g. choke coil or transformer, has laminations of magnetic circuit offset relative to one another in vicinity of electrical circuit for increasing magnetic circuit surface
10/18/2000CN1270396A Common mode choke
09/2000
09/26/2000US6124778 Magnetic component assembly
09/21/2000WO2000055873A1 Inductor coil structure and method for making same
09/14/2000WO2000054558A1 Circuit arrangement
08/2000
08/31/2000DE19914020C1 Coil-wound hardware items noise reduction procedure especially for chokes and transformers
08/31/2000DE10000022A1 Effizientes elektronisches Vorschaltgerät für Leuchtstoffröhren Efficient electronic ballast for fluorescent lamps
08/02/2000EP1023737A1 Electric power transmission device
08/02/2000EP1023736A1 Radio interference suppression choke
07/2000
07/26/2000CN1261200A Coil device and manufacture thereof
07/25/2000US6094124 Ballast for discharge lamp and method and apparatus for manufacturing the same
06/2000
06/13/2000US6075430 Inductive component with wound core
05/2000
05/31/2000CN1255230A Electrical choke
05/31/2000CN1254984A Power supply filter
05/25/2000DE19853510A1 Netzfilter Line filter
05/24/2000EP1003183A1 Mains filter
05/23/2000US6067002 Circuit substrate with a built-in coil
05/17/2000CN1253056A Output choking coil for use on D. C. welding machine and method for using same
05/10/2000EP0999564A1 Output choke for a direct current welding device and method for adjusting the inductivity in the electrical output circuit of a direct current welding device
05/04/2000WO2000025329A1 Device for attenuating parasitic voltages
05/04/2000WO2000025328A1 Controlled reactor
05/04/2000DE19848827A1 Vorrichtung zur Dämpfung von Störspannungen Device for attenuating noise voltages
04/2000
04/27/2000DE19843465A1 Current compensated attenuation choke for interference voltages with choke coil(s) engaged by annular coil core
04/12/2000EP0862783B1 Inductive component
04/05/2000EP0991089A2 Composite inductor element
03/2000
03/22/2000CN2370542Y Wide frequency band full closed micro high frequency wave barrier
03/22/2000CN2370541Y Electric inductance element
03/14/2000US6037686 Current compensated choke filter for multi-phase motor drives
03/08/2000CN2368147Y Reactor with magnetic core
02/2000
02/29/2000US6031339 Efficient electronic ballast for fluorescent tubes
02/23/2000CN1049756C Multi-layer opened hollow inductor coil
02/02/2000CN2362183Y Hollow current-limiting reactor of glass fibre reinforced plastic
01/2000
01/19/2000EP0972290A2 Electric ballast
01/11/2000US6014071 Choke coil
01/05/2000EP0968504A1 Electrical choke
01/05/2000CN1240539A Electric motor
12/1999
12/16/1999DE19925669A1 Chip-type inductor manufacturing method
12/15/1999CN1238538A Method of producing inductor
11/1999
11/30/1999US5994992 Choke coil
11/02/1999US5978446 Arc limiting device using the skin effect in ferro-magnetic materials
11/02/1999US5977853 Choke coil for eliminating common mode noise and normal mode noise
11/02/1999US5977713 High voltage noise filter and magnetron device using it
10/1999
10/14/1999WO1999039359A3 Electric ballast
10/12/1999US5966064 Nanocrystalline alloy having excellent pulse attenuation characteristics, method of producing the same, choke coil, and noise filter
10/06/1999CN1231057A Coil
09/1999
09/30/1999DE19812315A1 Noise suppression circuit for electronic revolution rate regulator
08/1999
08/25/1999EP0938106A1 Coil
08/12/1999WO1999028931A3 A reactor
08/11/1999EP0934594A1 Inductor
08/05/1999WO1999039359A2 Electric ballast
08/05/1999CA2285358A1 Electric ballast
08/04/1999EP0933980A2 Arc limiting device
07/1999
07/01/1999DE19756578A1 Choke for suppressing electromagnetic noise
06/1999
06/29/1999US5917302 Harmonic current attenuating device of a motor
06/16/1999CN1043670C Nanocrystalline alloy having excellent pulse attenuation characteristics, its use and method of producing same
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