| Patents for H01F 19 - Fixed transformers or mutual inductances of the signal type (1,296) |
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| 02/06/2007 | US7171739 Method of manufacturing an on-chip transformer balun |
| 01/31/2007 | CN2864946Y Transformer |
| 01/31/2007 | CN1297995C Construction of medium voltage power line data couplers |
| 01/17/2007 | CN2859765Y High-frequency power transformer of plating power source |
| 01/11/2007 | WO2007004419A1 Signal coupler |
| 01/11/2007 | WO2007004266A1 Signal coupler |
| 01/02/2007 | US7158003 Construction of medium voltage power line data couplers |
| 12/27/2006 | EP1611666B1 Switched-mode power supply unit |
| 12/26/2006 | US7153163 Modular jack for ethernet applications |
| 12/13/2006 | CN2847559Y Short wave broad band adaptor |
| 11/23/2006 | WO2006123485A1 Multilayer balun transformer |
| 11/23/2006 | WO2006123482A1 Multilayer directional coupler |
| 11/23/2006 | US20060260544 Substrate processing and method of manufacturing device |
| 11/23/2006 | DE10232642B4 Integrierte Transformatoranordnung Integrated transformer arrangement |
| 11/22/2006 | CN1868009A Dsl modem and transformer |
| 11/22/2006 | CN1866420A Magnetic core for electromagnetic apparatus and electromagnetic apparatus provided with magnetic core for electromagnetic apparatus |
| 11/16/2006 | DE102006020808A1 Inductive rotary transformer contains mobile several parts, each with coil for power control, with at least one part of plastics including soft magnetic particles |
| 11/16/2006 | DE102005020615A1 Signal transmission assembly for galvanically decoupled circuits has differential input resistance of receiver circuit smaller than sum of primary and secondary conductor resistance or smaller than output resistance of transformer |
| 11/09/2006 | US20060250155 Signal isolators using micro-transformers |
| 10/18/2006 | CN1280842C Permanent magnet, magnetic core having magnet has bias magnet and inductance parts using the core |
| 10/17/2006 | US7123117 LAN magnetic interface circuit |
| 10/03/2006 | US7116185 Balun |
| 09/21/2006 | US20060209487 Transmitter head and system for contactless energy transmission |
| 09/20/2006 | CN2819413Y Ultrathin step up transformer |
| 09/20/2006 | CN1276542C 3-line balun transformer |
| 09/13/2006 | CN2817014Y Decimal high-frequency inductance box |
| 09/05/2006 | US7102479 Output choke for D.C. welder and method of using same |
| 08/16/2006 | CN2807422Y Low-temperature co-fired ceramic winding high frequency power transformer |
| 08/16/2006 | CN1270330C Laminated balance-balun transformer |
| 07/26/2006 | CN1266711C Mn-Zn series feerite, magnetic core for transformer and transformer |
| 07/19/2006 | EP1681690A2 High-Frequency power transformer |
| 07/12/2006 | CA2532771A1 High-frequency power transformer |
| 07/11/2006 | US7075329 Signal isolators using micro-transformers |
| 07/06/2006 | US20060145680 Method for analyzing the inner temperature field and flow field in power transformers |
| 07/05/2006 | CN1263049C Step-up transformer for high frequency heater |
| 07/04/2006 | US7071685 Induction sensor using printed circuit |
| 06/20/2006 | US7065583 System and associated suppression assembly for limiting electromagnetic emissions in network devices communicating via a network bus |
| 06/06/2006 | US7057486 Controlled induction device and method of manufacturing |
| 06/01/2006 | US20060113983 Power apparatus and method to provide high voltage |
| 05/31/2006 | CN1258197C Great-current HF transformer |
| 05/10/2006 | CN1770332A Simplified surface-mount devices and methods |
| 05/09/2006 | US7042323 Signal transformer and method for operating such a signal transformer |
| 05/03/2006 | EP1566049A4 Arrangement of an inductive coupler for power line communications |
| 05/03/2006 | CN1767094A Pulse wave transformer for communication and its packaging method |
| 04/27/2006 | DE19810617B4 Hybrid-Übertrager für HF-Mischer in gedruckter Schaltung Transformer hybrid for RF mixer in printed circuit |
| 04/19/2006 | CN1762107A Modem coupling circuit for power-line carrier |
| 04/19/2006 | CN1762082A Transmitter head and a system for contactless energy transmission |
| 04/19/2006 | CN1762044A Substrate processor and method of manufacturing device |
| 04/19/2006 | CN1252749C Magnet core with magnetic deflecting body and inductor therewith |
| 04/12/2006 | CN1251255C Adjustable inductor |
| 04/04/2006 | US7023314 Transformer |
| 04/04/2006 | US7021518 Micromagnetic device for power processing applications and method of manufacture therefor |
| 03/28/2006 | US7019611 Modem coupling circuit for power-line carrier |
| 03/23/2006 | DE102004036139A1 Bauelementanordnung mit einem planaren Transformator Component arrangement with a planar transformer |
| 03/22/2006 | CN1750187A Transformer or inductor containing a magnetic core having sidewalls and center core portion |
| 03/21/2006 | US7015785 Inverter transformer and core structure thereof |
| 03/15/2006 | CN1747081A High-frequency decimal inductance box |
| 03/15/2006 | CN1747080A Laminated balun transformer |
| 02/01/2006 | CN1240087C Planar coil and planar transformer |
| 02/01/2006 | CN1240085C PCB-type transformer without iron core |
| 01/25/2006 | EP1618712A2 Signal isolators using micro-transformers |
| 01/25/2006 | CN1726518A Induction sensor using printed circuit |
| 01/17/2006 | US6987678 Switching voltage regulator for switch mode power supply with planar transformer |
| 01/04/2006 | EP1611666A1 Switched-mode power supply unit |
| 01/04/2006 | CN1235243C High-tension transformer |
| 12/28/2005 | CN1714562A Arrangement of an inductive coupler for power line communications |
| 12/22/2005 | DE10312284B4 Übertragerkopf, System zur berührungslosen Energieübertragung und Verwendung eines Übertragerkopfes Transmission head, system for contactless energy transfer and use of a transmitter head |
| 12/21/2005 | EP1606869A1 Transmitter head and a system for contactless energy transmission |
| 12/13/2005 | US6975210 Arrangement of an inductive coupler for power line communications |
| 12/13/2005 | US6975200 Microconverter and laminated magnetic-core inductor |
| 12/13/2005 | US6974905 Coaxial cable and transmission transformer using same |
| 12/08/2005 | WO2005117201A1 Laminated balun transformer |
| 12/08/2005 | US20050269657 On chip transformer isolator |
| 11/29/2005 | US6970064 Center-tap transformers in integrated circuits |
| 11/23/2005 | CN1228796C Special output transformer for power amplifier with wide frequency band of audio frequency to ultra-audio frequency |
| 11/17/2005 | WO2005109456A1 Variable inductor |
| 11/17/2005 | WO2005109455A1 Pulse transformer for communication |
| 11/17/2005 | US20050254193 Pulse transformer for transmitting and receiving signal |
| 10/19/2005 | CN1224062C Planar inductive component and planar transformer |
| 10/13/2005 | US20050225417 Transformer |
| 10/13/2005 | DE10100282B4 Elektrischer Transformator The electrical transformer |
| 10/06/2005 | US20050218134 Output choke for D.C. welder and method of using same |
| 09/28/2005 | CN1220995C Safety isolating transformers |
| 09/20/2005 | US6946942 Transformer |
| 09/15/2005 | WO2004100473A3 Signal isolators using micro-transformers |
| 09/14/2005 | EP1573686A1 Induction sensor using printed circuit |
| 09/06/2005 | US6940468 Transformers or inductors (“transductors”) and antennas manufactured from conductive loaded resin-based materials |
| 09/06/2005 | US6940381 Mn-Zn based ferrite, magnetic core for transformer and transformer |
| 08/24/2005 | EP1566049A2 Arrangement of an inductive coupler for power line communications |
| 08/16/2005 | US6930580 Output choke for D.C. welder and method of using same |
| 08/10/2005 | CN1653565A Pulse transformer for transmitting and receiving signal |
| 08/04/2005 | US20050168890 Method & apparatus for transient suppressing high-bandwidth voltage regulation |
| 08/04/2005 | US20050168312 Transformer |
| 08/03/2005 | CN1650374A Construction of medium voltage power line data couplers |
| 08/02/2005 | US6924724 Method and apparatus for transformer bandwidth enhancement |
| 07/28/2005 | US20050162237 Communication transformer |
| 07/21/2005 | US20050156699 Coreless printed-circuit-board (PCB) transformers and operating techniques therefor |
| 07/20/2005 | CN1211815C Stepdown piezoelectric ceramic autotransformer and its making process |
| 07/13/2005 | CN1639813A Transformer |
| 07/05/2005 | US6914512 3-line balun transformer |