| Patents for H01F 27 - Details of transformers or inductances, in general (43,362) |
|---|
| 03/02/1989 | DE3727457A1 Three-phase transformer |
| 03/01/1989 | EP0304593A1 Surface mounted device component |
| 03/01/1989 | CN2033541U Electromagnetic coil with thermal pipe radiator |
| 03/01/1989 | CN2033539U Current transformer for anti-stealing electricity |
| 03/01/1989 | CN2033538U Multifunctional, combined electro-machining apparatus |
| 02/28/1989 | US4808959 Electrical coil with tap transferring to end-layer position |
| 02/28/1989 | US4808929 Shielded induction sensor for well logging |
| 02/28/1989 | US4808326 Resin-bonded magnetic composition and process for producing magnetic molding therefrom |
| 02/22/1989 | EP0304343A2 Pack of laminations and forming projections and depressions |
| 02/21/1989 | US4807105 Circuit arrangement for producing high DC voltage from medium-frequency AC voltage |
| 02/21/1989 | US4806896 Electromagnetic shield for electromagnetic apparatus |
| 02/21/1989 | US4806895 Toroidal coil mount |
| 02/21/1989 | US4806894 Apparatus for cancelling leakage magnetic field |
| 02/21/1989 | US4806834 Electrical circuit for inductance conductors, transformers and motors |
| 02/16/1989 | DE3826054A1 Ignition coil, especially for a motor vehicle internal combustion engine, and a heat sink for such a coil |
| 02/16/1989 | DE3726357A1 Epoxy resin encapsulation having low shrinkage pressure and high insulation resistance for the encapsulation of electrical components |
| 02/16/1989 | DE3725929A1 Method for producing an electrically, electromagnetically and/or magnetically active screen |
| 02/16/1989 | DE3725702A1 Iron core for high power transformers - has core formed from blanked laminates that form interlock structure |
| 02/15/1989 | CN1031151A Pressure releaser made of special-shaped glass |
| 02/14/1989 | US4803777 Method of manufacturing an electric component with a lead wire secured in a through hole |
| 02/07/1989 | USH575 Light-weight non-saturating spaced core inductor |
| 02/02/1989 | DE3738646A1 Electrical coil |
| 02/02/1989 | DE3724349A1 Rotary transformer for a recorder |
| 01/31/1989 | US4801912 Surface mountable electronic device |
| 01/26/1989 | DE3728411C1 Inductive component |
| 01/25/1989 | EP0300556A1 Thin-film transformer and magnetic head provided with such a transformer |
| 01/25/1989 | CN2031565U Outer oil type metal expanding device |
| 01/25/1989 | CN2031564U Monitoring cover for current transformer |
| 01/25/1989 | CN1030669A Thin-film transformer and magnetic head provided with such transformer |
| 01/25/1989 | CN1030668A Mold transformer |
| 01/24/1989 | US4800357 Transformer support assembly |
| 01/24/1989 | US4800356 Shunt transformer |
| 01/24/1989 | US4799310 Method for manufacturing a bar antenna |
| 01/19/1989 | DE3722382A1 Load-dependent reactive-current compensation |
| 01/19/1989 | DE3722373A1 Circuit arrangement for generating current-voltage characteristics which can be adjusted in steps |
| 01/18/1989 | EP0299498A1 Magnetic core and method of producing same |
| 01/18/1989 | CN2031152U Single-way herringbone non-misaligved lamination for transformer iron core |
| 01/18/1989 | CN2031151U Full seal device for 35 kv mutual-inductor |
| 01/18/1989 | CN2031150U Purifier for insulating oil |
| 01/17/1989 | US4799119 Flexible circuit magnetic core winding for a core member |
| 01/12/1989 | WO1989000332A1 Devices for bursting and decontamination, in particular of electric transformers and their oils |
| 01/11/1989 | EP0298311A1 High-frequency transformer |
| 01/11/1989 | CN2030753U Diaphragm alarm and explosion protection expansion means |
| 01/11/1989 | CN2030752U Upside-down plastic means of transformer oil sealing |
| 01/10/1989 | US4797648 Chip inductor |
| 01/10/1989 | US4797647 Inductor and a manufacturing method therefor |
| 01/05/1989 | DE3721178A1 Method for mounting an electrical connecting element in a structural body of an electrical component, and a device for carrying out this method |
| 01/04/1989 | CN2030368U High-temperature-resisting transformer |
| 01/04/1989 | CN2030367U Fin type radiator for transformer |
| 01/04/1989 | CN2030366U Corona-less working-frequency test transformer |
| 01/03/1989 | US4796143 Electric transformer for underground mining machine |
| 01/03/1989 | US4794982 Heat transfer enclosure |
| 12/27/1988 | US4794361 Coil winding method for maximum utilization of winding envelope |
| 12/27/1988 | US4794360 Inductive device having a core of an amorphous material |
| 12/27/1988 | US4794318 Current transducer arrangement for outdoor high-voltage installations |
| 12/15/1988 | DE3817890A1 Coil |
| 12/14/1988 | CN87214953U Constant out-letting transformer |
| 12/13/1988 | US4791523 Protecting an icemaker against overcurrent damage |
| 12/13/1988 | US4791395 Magnetic core apparatus and method of constructing the same |
| 12/13/1988 | US4790337 Apparatus for removing PCB's from electrical apparatus |
| 12/13/1988 | US4790064 Method of manufacturing an amorphous metal transformer core and coil assembly |
| 12/07/1988 | EP0294297A1 Electric transformer for a microwave oven |
| 12/07/1988 | EP0293617A1 High-frequency power transmitter |
| 12/07/1988 | CN88210412U Box pressure release metal expansion unit |
| 12/07/1988 | CN88210175U Protector for oil-quenched transformer |
| 12/07/1988 | CN87102026A Reactive power self-compensation transformer and motor |
| 12/06/1988 | US4789849 Amorphous metal transformer core and coil assembly |
| 12/01/1988 | WO1988009225A1 Method for decontaminating transformers with pcb |
| 11/29/1988 | US4788624 Capacitor having current surge protection |
| 11/29/1988 | CA1245756A1 Transformer cooling structure with u-shaped cooling panels |
| 11/24/1988 | DE3715235A1 Process and device for extracting oil or polychlorinated biphenyl from impregnated electrical components by means of a solvent, and for distillation of the solvent |
| 11/23/1988 | EP0291602A1 Contact elements for miniature inductor |
| 11/23/1988 | EP0291575A2 Horizontal deflection transformer |
| 11/22/1988 | US4787020 Full-wave output type forward converter |
| 11/22/1988 | US4785527 Method for manufacturing an inductive chip |
| 11/22/1988 | CA1245313A1 Transformer with ferromagnetic circuits of unequal saturation inductions |
| 11/17/1988 | WO1988009042A1 High coupling transformer adapted to a cutting supply circuit and cutting supply circuit including such a transformer |
| 11/17/1988 | EP0291403A1 Transformer with a strong coupling for chopped supply circuit and supply circuit comprising such a transformer |
| 11/15/1988 | US4785345 Integrated transformer structure with primary winding in substrate |
| 11/09/1988 | EP0290098A1 Process and apparatus for extracting oil or polychlorinated biphenyls from impregnated electrical components by means of a solvating agent, and distillation of the solvent |
| 11/02/1988 | EP0288710A2 Switching regulator |
| 11/02/1988 | CN87209276U Protable compensated voltage regulater |
| 11/01/1988 | US4781348 Adjustable banded aluminum transformer mount |
| 10/27/1988 | DE3711529A1 Circuit component module for video recorder or cordless telephone - uses terminal lead frame for securing components before embedding in resin block |
| 10/26/1988 | CN87210805U Iron core positioning device |
| 10/25/1988 | US4780804 Method and an arrangement for enabling the magnetizing current passing through a transformer to be minimized when an asymmetric load is applied to the secondary side of the transformer |
| 10/25/1988 | US4780676 Method and device for cooling a resistive magnet system for nuclear spin tomographs |
| 10/25/1988 | US4779812 Toroidal electrical transformer and method of producing same |
| 10/20/1988 | WO1988008201A1 Output-type electromagnetic transducer |
| 10/19/1988 | EP0287307A1 An electrical circuit for inductance conductors, transformers and motors |
| 10/19/1988 | EP0286980A1 High-voltage transformer |
| 10/18/1988 | US4779068 Noise suppression inductor |
| 10/13/1988 | DE3710488A1 Gas-warning device for oil-filled high-voltage units |
| 10/12/1988 | EP0285895A1 High voltage isolation device for transformers and inductances, especially destinated to high voltage direct current transmission |
| 10/12/1988 | CN87102374A Effective, harmless, combined drying process |
| 10/11/1988 | US4777466 Connector arrangement for electrical circuits in underwater installations, and transformer particularly for use in such arrangement |
| 10/11/1988 | US4777465 Square toroid transformer for hybrid integrated circuit |
| 10/11/1988 | US4777461 LC composite component |
| 10/05/1988 | EP0284997A2 Electrial joining piece especially as current lead-through for cooling systems |
| 10/05/1988 | EP0187771B1 High frequency transformer |