| Patents for H03H 1 - Constructional details of impedance networks whose electrical mode of operation is not specified or applicable to more than one type of network (2,020) |
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| 12/02/2004 | US20040239055 Electromagnetic interference filter |
| 12/01/2004 | EP1169821B1 Apparatus and method for coupling analog subscriber lines in a home network |
| 11/25/2004 | US20040233016 Feed-through filter capacitor assembly |
| 11/25/2004 | US20040233015 Electromagnetic interference filter |
| 11/23/2004 | US6822845 Low profile filter |
| 11/17/2004 | EP1050093A4 Paired multi-layered dielectric independent passive component architecture resulting in differential and common mode filtering with surge protection in one integrated package |
| 11/16/2004 | US6819569 Impedance equalization module |
| 11/11/2004 | US20040223350 Low output noise switch mode power supply with shieldless transformers |
| 11/09/2004 | US6816033 Electromagnetic interference filter |
| 11/04/2004 | WO2004095697A1 Normal mode noise suppressing circuit |
| 10/27/2004 | CN1540689A 电子元器件 Electronic Components |
| 10/26/2004 | US6809609 Device for preventing mixing of extrinsic noise and protector |
| 10/26/2004 | US6809583 Electronic device for supplying DC power and having noise filter mounted with excellent noise reduction |
| 10/21/2004 | US20040207503 Self-damped inductor |
| 10/21/2004 | US20040207488 Electronic component |
| 10/19/2004 | US6806794 Noise filter |
| 10/19/2004 | US6806793 MLC frequency selective circuit structures |
| 10/17/2004 | CA2426194A1 Feedthrough capacitor filter assemblies with leak detection vents |
| 10/14/2004 | WO2004088814A1 Device for suppressing radiation occurring during information transmission through power supply lines |
| 10/13/2004 | CN2648699Y Improvement of wave filter output terminal combination structure (one) |
| 10/13/2004 | CN2648698Y Improvement of wave filter output terminal combination structure (two) |
| 10/13/2004 | CN2648697Y Improvement of wave filter output terminal combination structure (three) |
| 10/13/2004 | CN1536591A Common mode wave filter |
| 10/12/2004 | US6803726 Noise filter of high frequency generator |
| 10/07/2004 | WO2000077907A9 Universal multi-functional common conductive shield structure for electrical circuitry and energy conditioning |
| 10/06/2004 | EP1465218A1 Noise filter, outdoor unit, and air conditioner |
| 10/05/2004 | US6801103 Noise filter |
| 09/30/2004 | WO2004084119A2 Resonant frequency tag and method for controlling tag frequency |
| 09/30/2004 | WO2004036879A3 Filter for segmenting power lines for communications |
| 09/30/2004 | US20040188833 Electronic component of a high frequency current suppression type and bonding wire for the same |
| 09/30/2004 | DE20319863U1 Electrical power filter, e.g. for use in-line and in connectors, comprises electrode structures and dielectric wafers with encapsulating mass and soldered connections |
| 09/30/2004 | CA2672690A1 Resonant frequency tag and method for controlling tag frequency |
| 09/30/2004 | CA2519104A1 Resonant frequency tag and method for controlling tag frequency |
| 09/29/2004 | EP1462426A1 Low temperature co-fired ferrite-ceramic composite and the process for manufacturing it |
| 09/29/2004 | CN1532856A Thin film type common mode choke and its producing method |
| 09/23/2004 | WO2004082324A2 Transducer asembly with modifiable buffer circuit and method for adjusting thereof |
| 09/22/2004 | CN1530975A Capacitance and filter assembly for eliminating high-frequency electromagnetic interference in high-voltage circuit |
| 09/21/2004 | US6794957 CATV filter assembly with improved electrical grounding |
| 09/16/2004 | WO2004079914A1 Phase-locked loop circuit |
| 09/16/2004 | US20040179703 Modifiable buffer circuit for miniature microphone applications and method of adjusting thereof |
| 09/16/2004 | US20040179702 Transducer assembly with modifiable buffer circuit and method for adjusting thereof |
| 09/16/2004 | US20040177492 Resonant frequency tag and method for controlling tag frequency |
| 09/14/2004 | US6792444 Filter devices and methods |
| 09/14/2004 | US6791436 Modular electrical signal filter assembly |
| 09/10/2004 | WO2004036813A3 Repeaters sharing a common medium for communications |
| 09/09/2004 | DE202004010463U1 Electromagnetic interference filter, for relatively-large currents, has inductive component comprising rectangular core portion and two separate windings |
| 09/08/2004 | CN1528003A Noise filter and electronic apparatus comprising this noise filter |
| 09/07/2004 | US6788166 Harmonic wave distortion suppressor |
| 09/02/2004 | US20040169532 Device for controlling a frequency response by scaling an impedance |
| 09/01/2004 | CN1525641A Device for controlling a frequency response by scaling an impedance |
| 09/01/2004 | CN1525498A Method for preparing slice type network resistor and slice type network resistor prepared by the same method |
| 08/26/2004 | US20040164269 with determined proportions of SiO2 and borax; ferrite preferably includes Fe2O3, NiO, ZnO and CuO; combination filter prevents the function of electromagnetic interference and has an excellent electromagnetic couple effect |
| 08/25/2004 | EP1295378B1 Filtering and interference suppressing device for an electric motor |
| 08/25/2004 | CN1523616A Combined type filter element capable of preventing electromagnetic interference and manufacturing technique thereof |
| 08/25/2004 | CN1164035C Sampling rate converter |
| 08/25/2004 | CN1164029C Noise inhibiting wave filter |
| 08/24/2004 | US6781497 Apparatus and method for situating an inductive element onto a rod in an electrical circuit |
| 08/24/2004 | US6781481 Methods and apparatus for filtering electromagnetic interference from a signal in an input/output port |
| 08/12/2004 | US20040155721 Method and apparatus for reducing electromagnetic radiation |
| 08/12/2004 | US20040155720 Receiver |
| 08/11/2004 | EP1444821A1 High performance micro-filter and splitter apparatus |
| 08/11/2004 | CN1161880C Inductance-capacitance filter |
| 08/10/2004 | US6774714 Semiconductor device provided with noise cut filter |
| 08/05/2004 | WO2004065559A2 Power conditioners and pseudo isolation for a two-wire processing network |
| 08/04/2004 | CN1518012A Noise filter |
| 07/29/2004 | WO2004064084A2 Self-damped inductor |
| 07/28/2004 | CN1516877A Filter device and methods |
| 07/22/2004 | WO2004062220A1 Receiver |
| 07/22/2004 | WO2004062099A1 Low noise filter |
| 07/21/2004 | EP1439632A2 Switched-mode power supply device |
| 07/21/2004 | EP1222725A4 Universal multi-functional common conductive shield structure for electrical circuitry and energy conditioning |
| 07/21/2004 | CN1514541A Multilayer ceramic frequency selective circuit |
| 07/15/2004 | US20040135652 Noise filter |
| 07/14/2004 | CN2626132Y Package shielding case for microwave filter |
| 07/08/2004 | WO2002091571A9 Method and apparatus for reducing electromagnetic radiation |
| 07/08/2004 | US20040130415 Noise filter and electronic apparatus comprising this noise filter |
| 07/07/2004 | CN1156963C Stepped adjustable notch filter |
| 07/01/2004 | US20040124949 Component carrier |
| 06/30/2004 | CN1156074C Solderless coaxial feedthrough component |
| 06/23/2004 | EP1432136A2 Noise filter |
| 06/23/2004 | CN1507690A Method and apparatus for reducing electromagnetic radiation |
| 06/22/2004 | US6753742 Signal coupling apparatus for communication by medium voltage power line |
| 06/17/2004 | US20040114298 EMI suppression device |
| 06/17/2004 | US20040113721 MLC frequency selective circuit structures |
| 06/15/2004 | US6750738 Electric filter and motor vehicle wiring system with such filter |
| 06/10/2004 | US20040110421 Impedance qualization module |
| 06/03/2004 | US20040105218 Shielded strip line device and method of manufacture thereof |
| 06/03/2004 | US20040104787 CATV Filter assembly with improved electrical grounding |
| 06/03/2004 | US20040104786 Diplex circuit forming bandstop filter |
| 06/03/2004 | DE10349301A1 Electromagnetic filter for feedthrough conductor, has pair of capacitors supported on one of the planar surfaces of substrate, partially surrounding feedthrough conductor |
| 06/02/2004 | EP1423914A2 Filter devices and methods |
| 06/02/2004 | CN1502157A Predetermined symmetrically balanced amalgam with complementary paired portions comprising shielding electrodes and shielded electrodes and other predetermined element portions for symmetrically balan |
| 06/02/2004 | CN1501769A 噪音吸收器 Noise absorbers |
| 05/27/2004 | DE10349302A1 Electromagnetic filter for use with feedthrough conductor, has conductive contacts that electrically connect capacitor to metallized surface of inductor and feedthrough conductor, respectively |
| 05/26/2004 | CN1499631A Circuit for testing time constant of integrated resistance-capacitance product inside chip |
| 05/19/2004 | CN1498026A High-frequency assembly and communication device |
| 05/18/2004 | US6738604 Programmable IF bandwidth using fixed bandwidth filters |
| 05/18/2004 | US6738249 Universal energy conditioning interposer with circuit architecture |
| 05/18/2004 | US6737935 Diplex circuit forming bandstop filter |
| 05/13/2004 | US20040090284 Arrangement of a data coupler for power line communications |