| Patents for H01F 17 - Fixed inductances of the signal type (10,329) |
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| 07/17/1991 | CN2081135U Miniature wide-band electric power wave rejector |
| 07/16/1991 | US5032815 Lamination type inductor |
| 07/16/1991 | US5032810 LC filter |
| 07/16/1991 | US5032808 R.F. choke for CATV system |
| 07/16/1991 | US5032764 Coil, a method of construction of said coil and an imaging device equipped with a coil of this type |
| 07/10/1991 | EP0436385A2 High-frequency inductor and manufacturing method thereof |
| 07/10/1991 | EP0436274A2 Thin film magnetic core memory and method of making same |
| 07/03/1991 | EP0435230A2 Laminated LC element and method for manufacturing the same |
| 07/03/1991 | EP0435160A1 Inductor |
| 07/03/1991 | CN2080215U Fluorescent lamp ballast with new structure |
| 06/25/1991 | US5025550 Automated method for the manufacture of small implantable transponder devices |
| 06/19/1991 | CN2079347U Magnetic pulse depressed switch |
| 06/04/1991 | US5021758 Circuit arrangement comprising MESFET switched spiral inductor |
| 05/29/1991 | DE3938718A1 Miniature chip inductor for SMD circuitry - has basic body with lower and top parts, with lower part contacting faces for circuit board |
| 05/29/1991 | CN1051819A Planar coil construction |
| 05/22/1991 | EP0428142A2 Planar coil construction |
| 04/23/1991 | US5010313 Chip coil |
| 04/23/1991 | CA1283464C Microwave transformer |
| 04/17/1991 | EP0422609A1 Linearizing coil for linearizing the line current of image layer devices |
| 03/26/1991 | US5003278 Ferrite suppressor case with retaining fingers |
| 03/26/1991 | CA1282010C Inductive coupled power system |
| 03/06/1991 | CN2072720U Multipolar magnetic field coil |
| 02/27/1991 | EP0414315A1 Inductive device |
| 02/20/1991 | EP0413348A2 Semiconductor integrated circuit |
| 02/19/1991 | CA1280475C Transformer structure |
| 02/14/1991 | DE3926231A1 Small, tunable inductance for HF circuitry - has parallel wound turns of two coils with identical dia. |
| 02/06/1991 | EP0411922A1 Composite winding type stacked-layer inductors including self-inductive inductors and mutual-inductive inductors and method of manufacturing the same |
| 02/05/1991 | US4990891 Identification device in the form of a tag-like strip affixable to an article |
| 02/05/1991 | US4990880 Transformer clip |
| 01/24/1991 | WO1991001029A1 Coin testing apparatus |
| 01/08/1991 | US4983934 Noise filter |
| 01/08/1991 | US4983932 Electric noise absorber |
| 01/02/1991 | EP0405671A1 Winding support and method of forming an assembly comprising an electric coil and an electronic component by means of such a support |
| 12/18/1990 | US4978906 Picture frame matrix transformer |
| 12/11/1990 | US4977491 High frequency transformer with a printed circuit winding in particular for a very high voltage power supply |
| 12/04/1990 | US4975672 High power/high frequency inductor |
| 12/04/1990 | US4975671 Transformer for use with surface mounting technology |
| 11/28/1990 | EP0399779A1 An electronic component with a fastener |
| 11/27/1990 | US4973930 Twin coil |
| 11/20/1990 | US4972167 Electric noise absorber |
| 11/15/1990 | WO1990013939A1 Power conversion system |
| 11/13/1990 | US4970476 Electric noise absorber using a granular or liquid magnetic substance |
| 10/24/1990 | EP0393644A2 LC noise filter |
| 10/24/1990 | EP0393599A2 Surface mounted electric coil |
| 10/16/1990 | US4964013 Electric noise absorber |
| 10/16/1990 | US4964012 Electric noise absorber |
| 10/11/1990 | DE3911194A1 Package for annular elements, in particular electrical construction elements |
| 10/10/1990 | EP0377691A4 Matrix transformer having high dielectric isolation |
| 09/25/1990 | US4959631 Planar inductor |
| 09/25/1990 | US4959630 High-frequency transformer |
| 09/18/1990 | US4958134 Noise suppression device comprising a toroid winding |
| 09/13/1990 | DE4007614A1 Inductive element, esp. HF transformer - has conductor wound spirally around magnetic core and held inside winding block |
| 09/12/1990 | EP0092555B1 Tag-shaped identification device attachable to an object |
| 09/11/1990 | US4956627 High-frequency component |
| 09/11/1990 | US4956114 Borosilicate glass having improved mechanical strength and electromagnetic properties |
| 08/29/1990 | CN1045002A Coil capable of producing instantaneous strong magnetic field |
| 08/15/1990 | CN1009231B Improved toroidal transformer and machines and methods for making same |
| 08/14/1990 | US4949221 Encased electronic component |
| 07/31/1990 | US4945332 Noise suppression inductor |
| 07/18/1990 | EP0377691A1 Matrix transformer having high dielectric isolation |
| 07/12/1990 | DE3941915A1 Suppressor for electronic equipment electromagnetic interference - uses magnetic material ring located or connecting cable to unit |
| 06/21/1990 | DE3941323A1 Semiconductor logic circuit with FET(s) forming integral inductor - has three=dimensional structure with switched transistors, conductive tracks and connecting channels arranged in different planes |
| 06/06/1990 | EP0371434A1 Multipole suppression choke for data lines with multiple leads |
| 05/17/1990 | DE3938177A1 Stossstrom-unterdrueckungsschaltung und magnetische einrichtung darin Surge current-unterdrueckungsschaltung and magnetic device is |
| 05/15/1990 | US4926292 Broadband printed spiral |
| 05/15/1990 | US4926151 Chip-type coil element |
| 05/09/1990 | EP0366739A1 Electric transmission device |
| 05/01/1990 | US4922156 Integrated power capacitor and inductors/transformers utilizing insulated amorphous metal ribbon |
| 04/17/1990 | US4918417 Inductor having parallel line electrodes |
| 04/12/1990 | DE3834590A1 Holder for fastening an annular core |
| 04/05/1990 | WO1990003697A1 Data current coupler and methods of making and assembling same |
| 04/04/1990 | EP0361967A1 Planar inductor |
| 03/14/1990 | EP0357608A1 High-frequency component. |
| 03/07/1990 | EP0357088A2 Multilayer wiring substrate |
| 03/06/1990 | US4905358 Thin film active trimmable capacitor/inductor |
| 02/27/1990 | US4904879 Data current coupler and methods of making and assembling same |
| 01/30/1990 | US4897626 Cooling electromagnetic devices |
| 01/24/1990 | EP0351861A1 Inductive component, especially a transformer |
| 01/24/1990 | EP0351583A1 Twin coil |
| 01/11/1990 | DE3822627A1 Inductor, in particular for wideband use |
| 12/28/1989 | DE3820976A1 SMD inductor or transformer |
| 12/19/1989 | US4888571 Coil means |
| 12/05/1989 | US4885559 Electric noise absorber |
| 11/07/1989 | US4878291 Method of manufacturing toroidal coils |
| 11/02/1989 | WO1989010651A1 Electric transmission device |
| 11/02/1989 | WO1989010621A1 Matrix transformer having high dielectric isolation |
| 10/17/1989 | US4873757 Method of making a multilayer electrical coil |
| 10/11/1989 | EP0336771A2 Integrated capacitor and inductors/transformers utilising insulated amorphous metal ribbon |
| 10/10/1989 | US4873505 Electric noise absorber |
| 10/05/1989 | DE3810330A1 Mains suppression inductor (filter) for a telecommunications apparatus |
| 10/04/1989 | EP0335780A1 Coil, manufacturing method for said coil and imagery device having such a coil |
| 10/04/1989 | EP0335713A1 Ferrite toroid isolator |
| 09/28/1989 | DE3908896A1 Chip inductor |
| 09/27/1989 | EP0334520A1 Integrated inductor/capacitor device using soft ferrites |
| 08/29/1989 | US4862189 Microwave transformer |
| 07/27/1989 | DE3801542A1 Storage inductor for storing magnetic energy and for smoothing pulsating load currents |
| 07/18/1989 | US4847986 Method of making square toroid transformer for hybrid integrated circuit |
| 07/05/1989 | CN1033712A Miniature high frequency power transformer |
| 07/04/1989 | US4845452 Composite bead element |
| 06/27/1989 | US4842352 Chip-like inductance element |