| Patents for H01F 41 - Apparatus or processes specially adapted for manufacturing or assembling the devices covered by this subclass (27,155) |
|---|
| 08/29/1990 | CN1045002A Coil capable of producing instantaneous strong magnetic field |
| 08/28/1990 | US4951889 Programmable perfect layer winding system |
| 08/22/1990 | EP0383216A2 Magneto-optical layer and process for its manufacture |
| 08/22/1990 | EP0383035A2 Iron-silicon alloy powder magnetic cores and method of manufacturing the same |
| 08/22/1990 | CN1044871A Transformers and cores for transformers |
| 08/22/1990 | CA2010023A1 Apparatus for automatically shaping windings for extremely elongated coils, in particular to form dipole or quadrupole magnets |
| 08/21/1990 | US4950837 Method for reclassifying PCB transformers |
| 08/21/1990 | US4950335 Process for producing articles for magnetic use |
| 08/16/1990 | CA2010014A1 Magnetooptic layer and a process for its fabrication |
| 08/15/1990 | CN1044731A Amorphous metal transformer core sandwich |
| 08/15/1990 | CN1009231B Improved toroidal transformer and machines and methods for making same |
| 08/14/1990 | US4948999 Self-starting two-pole single-phase synchronous motor |
| 08/14/1990 | US4948454 Process and apparatus for the application of a non-adhesive insulating tape to an electric coil winding |
| 08/14/1990 | US4947543 Method of winding wire on inner surface of cylindrical member |
| 08/14/1990 | CA1272591A1 Magnetic thin film |
| 08/14/1990 | CA1272584A1 Apparatus and method for fabricating a high voltage winding for a toroidal transformer |
| 08/14/1990 | CA1272583A1 Method of constructing a magnetic core |
| 08/08/1990 | EP0380935A1 Method of making an amorphous metal transformer core sandwich |
| 08/08/1990 | EP0380532A1 Preparation of thin layers of iron iii oxide for optical and/or magnetic recording. |
| 08/08/1990 | CN2060253U Electronic digit display coiling machine |
| 08/07/1990 | US4946613 Photosetting ferrofluid compositions |
| 08/07/1990 | US4946501 Alloy target for magneto-optical recording |
| 08/07/1990 | US4946112 Winding apparatus |
| 08/01/1990 | CA2007476A1 Amorphous metal transformer core sandwich |
| 07/31/1990 | US4944831 Process for obtaining a pattern, in ferromagnetic material having differently sloping sides |
| 07/31/1990 | US4944805 Method of heat treatment amorphous soft magnetic film layers to reduce magnetic anisotropy |
| 07/31/1990 | US4944802 High coercivity magnetic inks and method for making same |
| 07/31/1990 | US4944270 Asymmetrical excitation type magnetic device and method of manufacture thereof |
| 07/25/1990 | EP0378698A1 Method of producing permanent magnet |
| 07/25/1990 | CN1044187A Method for forming doughnut-shaped permanent magnet and forming mold therefor |
| 07/24/1990 | US4943794 Molded coil and manufacturing method thereof |
| 07/18/1990 | CN1044006A Improvements in laminations |
| 07/17/1990 | US4942098 Corrosion resistant permanent magnet |
| 07/17/1990 | US4941920 Cobalt, chromium, nickel alloying targets |
| 07/12/1990 | WO1990007782A1 Packs of laminations and method and apparatus for forming them |
| 07/12/1990 | WO1990007406A1 Control device for controlling over time the filling pressure in a compression moulding die |
| 07/12/1990 | WO1990007387A2 Arrangement for applying substances to a web of material |
| 07/11/1990 | EP0377294A2 Stress controlling superconductor wire |
| 07/11/1990 | CN1043821A 绕线机 Winder |
| 07/10/1990 | WO1990007784A1 Magnetic materials for security applications |
| 07/10/1990 | CA1271395A1 Annealing of thermally insulated core |
| 07/05/1990 | DE3943328A1 Verfahren zur herstellung eines ringroehrenfoermigen dauermagneten und herstellungsform fuer diesen A method for producing a permanent magnet and ringroehrenfoermigen manufacturing mold for this |
| 07/04/1990 | EP0376536A2 Thin oriented polymer films containing metal-organic compounds, and methods of making the same |
| 07/03/1990 | US4939610 Nickel, iron, palladium; heat resistance; computers |
| 07/03/1990 | CA2005573A1 Stress controlling superconductor wire |
| 07/03/1990 | CA2005429A1 Transformers and cores for transformers |
| 06/27/1990 | EP0375655A2 Winding wire and method of producing the same |
| 06/27/1990 | EP0375502A1 Ignition coil with a divided high-voltage winding, particularly for an internal-combustion engine |
| 06/27/1990 | EP0375353A2 A reinforcement for a superconductor means |
| 06/27/1990 | CN1008570B Process for manufacturing magnetic core with constant permeability |
| 06/27/1990 | CN1008569B Invariable inductance and its manufacturing process |
| 06/26/1990 | US4937729 Chopper power supply including a printed circuit transformer |
| 06/26/1990 | US4937226 Deposition of thin film of compound oxide around core |
| 06/26/1990 | US4936358 Method for securing wire coiled onto a spool, apparatus for securing wire coiled onto a spool, as well as spool containing wire coiled thereon |
| 06/22/1990 | CA2004898A1 Bend-tolerant superconductor cable |
| 06/21/1990 | DE3841966A1 Device for cutting off coil wire ends on connecting elements |
| 06/19/1990 | US4935383 Preparation of dilute magnetic semiconductor films by metalorganic chemical vapor deposition |
| 06/19/1990 | US4935299 Transfer medium |
| 06/19/1990 | US4935080 Phosphate, chromate protective coatings |
| 06/15/1990 | CA2004804A1 Method of coating magnetizable substances |
| 06/14/1990 | WO1990006464A1 Electromagnet for solenoid valve and production method of the same |
| 06/13/1990 | CN1043034A Method of manufacturing permanent magnet |
| 06/13/1990 | CN1008413B Method for producing moulded coil |
| 06/13/1990 | CN1008412B Coil assembly and support system for transformer, transformer empliying same and method for manufacture thereof |
| 06/13/1990 | CN1008411B Magnetic recording carrier |
| 06/12/1990 | US4933059 Sputtering |
| 06/12/1990 | CA2000560A1 Transformer with folded amorphous metal core |
| 06/07/1990 | DE3840509A1 Method for producing annular strip cores |
| 06/05/1990 | US4931137 Submicron dimensions; anisotropic deposition |
| 05/30/1990 | EP0370067A1 Preparation of thin layers of iron iii oxide for optical and/or magnetic recording. |
| 05/30/1990 | EP0370002A1 Apparatus for wrapping demagnetizing coils with insulating tape. |
| 05/29/1990 | US4928894 Coil winding machine and coil winding method using the same |
| 05/29/1990 | CA1269738A1 Demagnetization apparatus for magnetic markers used with article surveillance systems |
| 05/23/1990 | EP0369462A1 Method of producing polar anisotropic rare earth magnet |
| 05/22/1990 | US4927664 Process for applying electrically insulative layers |
| 05/16/1990 | EP0368483A2 Magneto-optical material |
| 05/16/1990 | EP0367942A1 Laminated magnetic cores, parts of magnetic cares and compact laminations, and method for producing the same |
| 05/15/1990 | US4926111 Electric component with inductive and capacitive properties |
| 05/15/1990 | US4925742 Halogen contaning compound; magnetic and optical recording media |
| 05/15/1990 | US4925501 Expolosive compaction of rare earth-transition metal alloys in a fluid medium |
| 05/15/1990 | CA1269029A1 Permanent magnet manufacture from very low coercivity crystalline rare earth-transition metal-boron alloy |
| 05/10/1990 | DE3926928A1 Mfg. inductive angle encoder involving curving of former - using hollow elastic support for coil winding subsequently shaped and fixed with hardenable resin |
| 05/09/1990 | EP0367602A1 Improvements in magnetic cores |
| 05/09/1990 | EP0367144A2 Laminated magnetic material and method of producing the same |
| 05/09/1990 | EP0366959A1 Method and device for wrapping or enveloping bodies, especially coil bobbins provided with electric windings |
| 05/09/1990 | CN1007943B Inductance element and method of mfg. the same |
| 05/08/1990 | US4924201 Core and coil assembly for a transformer having an amorphous steel core |
| 05/08/1990 | US4923133 Dancer assembly |
| 05/02/1990 | CN1007847B Process for producing magnets having improved corrosion resistance |
| 05/01/1990 | US4921763 Soft magnetic thin film |
| 05/01/1990 | US4921567 Machine for wrapping tape on bobbin |
| 05/01/1990 | US4921551 Permanent magnet manufacture from very low coercivity crystalline rare earth-transition metal-boron alloy |
| 04/30/1990 | CA2001680A1 Process and apparatus for bandaging or taping bodies particularly bobbins provided with electrical windings |
| 04/26/1990 | DE3934887A1 Deposition of thin magnetic films with constant thickness - uses sputtering method in which substrates perform specified planetary motions |
| 04/25/1990 | EP0365079A1 Method of manufacturing a permanent magnet |
| 04/24/1990 | US4919858 Mixture of particulate magnetic material and organic material in a mold which is rotated material is crosslinked by heat |
| 04/24/1990 | US4918832 Laminated iron core assembling process |
| 04/17/1990 | US4917736 Method of transforming a passive ferromagnetic material into a permanent magnet |
| 04/17/1990 | US4917318 Apparatus for fabricating a low voltage winding for a toroidal transformer |
| 04/17/1990 | US4917317 Toroidal coil winding machine |