| Patents for H01F 41 - Apparatus or processes specially adapted for manufacturing or assembling the devices covered by this subclass (27,155) |
|---|
| 06/13/1989 | US4838994 Method for structuring a copper and/or permalloy layer by means of dry etching |
| 06/13/1989 | US4838962 Magneto-optical recording medium |
| 06/07/1989 | EP0319322A1 Reducing the quantity of polyhalogenated aromatic hydrocarbons in inert organic solvents |
| 06/06/1989 | US4837114 Process for producing magnets having improved corrosion resistance |
| 06/06/1989 | US4837094 Radiation transparency, electrical resistance |
| 06/06/1989 | US4837046 Spraying aqueous oxidizing agent solution on substrate in deoxidized atmosphere, simultaneously supplying aqueous deoxidized solution containing ferrous ions |
| 06/06/1989 | US4836867 Crystal structure |
| 06/01/1989 | WO1989005032A1 Epoxy bonded rare earth-iron-boron magnets and method of making same |
| 05/31/1989 | EP0318252A2 Process for the production of a bonded magnet |
| 05/31/1989 | EP0318177A1 Moulded product |
| 05/31/1989 | EP0318131A1 Method and assembly for producing extruded permanent magnet articles |
| 05/30/1989 | US4834305 Apparatus for winding rotors of electrical machines |
| 05/30/1989 | CA1255000A1 Perpendicular magnetic recording medium and method of making same |
| 05/24/1989 | DE3817057A1 Method for the manufacture of a single-layer sensor coil |
| 05/24/1989 | DE3737854A1 Method for mounting and adjusting a transformer |
| 05/23/1989 | US4832980 Magneto-optical recording medium and manufacturing thereof |
| 05/23/1989 | US4832891 Method of making an epoxy bonded rare earth-iron magnet |
| 05/23/1989 | US4831718 Process for laminating plate packs, in particular transformer cores |
| 05/16/1989 | US4829658 Method for manufacturing terminal contacts for thin-film magnetic heads |
| 05/11/1989 | DE3836790A1 Device for the automatic assembly of transformer cores |
| 05/11/1989 | DE3836480A1 Anhaenger bzw. etikett und verfahren zu seiner herstellung Trailers or label and process for its manufacture |
| 05/03/1989 | DE3735661A1 Device for stacking laminated iron cores for transformers and inductor coils |
| 05/02/1989 | US4827237 Transformer core assembly |
| 05/02/1989 | US4825533 Method of making a voice coil with rectangular coil wire and foil leads |
| 05/02/1989 | CA1253589A1 Magnetic core and methods of consolidating same |
| 05/02/1989 | CA1253588A1 Coil and method for its manufacture |
| 05/02/1989 | CA1253587A1 Segmented toroidal air-core transformer |
| 05/02/1989 | CA1253318A1 Methods of consolidating a magnetic core |
| 04/27/1989 | DE3832659A1 Method for winding windings of a coil having a toroidal core, and a coil manufactured using this method |
| 04/26/1989 | CN1032603A Transformer insulation barrier and method for manufacture |
| 04/25/1989 | US4825090 Shielding membrane |
| 04/25/1989 | US4824481 Alloying rare earth and transition metal |
| 04/25/1989 | US4823459 Automatic finishing system for wound coil in coil winding machine |
| 04/18/1989 | US4822677 Dielectric layers of fused particles of boride, carbide, or nitride of silicon, hafnium, or tantalum |
| 04/13/1989 | DE3733376A1 Method for producing a coaxially field-coupled transformer |
| 04/12/1989 | CN2035911U Silicon sheet drawing plate |
| 04/11/1989 | US4820592 Oxides of strontium, barium or lead with iron, calcium, silicon; electrodepostion paint layer |
| 04/11/1989 | US4819322 Method for manufacturing a flat coil |
| 04/06/1989 | WO1989003111A1 Preparation of thin layers of iron iii oxide for optical and/or magnetic recording |
| 04/06/1989 | WO1989003110A1 Preparation of thin layers of iron iii oxide for optical and/or magnetic recording |
| 04/06/1989 | WO1989002804A1 Forged body |
| 04/06/1989 | WO1989002795A1 Transformer insulation barrier and method for manufacture |
| 04/06/1989 | DE3731726A1 Method for producing laminations for stacking transformer iron cores |
| 04/04/1989 | US4818305 Process for the production of elongated articles, especially magnets, from hard powdered materials |
| 04/04/1989 | US4817888 Multiple spindle winding machine for electric coils |
| 03/30/1989 | DE3730998A1 Method for producing and testing an electric coil |
| 03/29/1989 | EP0309381A1 Wire braking device |
| 03/29/1989 | EP0309359A1 Method for automatically controlling the self-inductance of wound elements comprising a magnetic circuit with an adjustable air gap |
| 03/29/1989 | EP0308818A1 Process for producing connection contacts for thin film magnetic heads |
| 03/29/1989 | EP0308816A1 Process for the production of connection contacts for thin film magnetic heads |
| 03/29/1989 | EP0308689A1 Method of manufacturing an electric connection device with electric terminals moulded by injection in an insulating bobbin of plastic material |
| 03/28/1989 | US4816292 Method of preparing hexagonal ferrite element |
| 03/28/1989 | US4815672 Toroidal core coil winding appliance |
| 03/23/1989 | WO1989002649A1 Apparatus for wrapping demagnetizing coils with insulating tape |
| 03/22/1989 | EP0308334A1 Composite magnetic material and process for its production |
| 03/22/1989 | EP0308201A1 Method of forming a sputtering target for use in producing a magneto-optic recording medium |
| 03/21/1989 | US4814736 Wound transformer core |
| 03/21/1989 | US4814731 Superconducting dipole electromagnets and process for producing the same |
| 03/21/1989 | US4814053 Sputtering target and method of preparing same |
| 03/21/1989 | US4813126 Apparatus and method for fabricating magnetic devices |
| 03/21/1989 | US4813124 Bakeable evacuative container assembly for hot isostatic pressing |
| 03/16/1989 | DE3729615A1 Electrical coil and a method for its production |
| 03/15/1989 | EP0306599A2 Method and apparatus for producing magnetically anisotropic Nd-Fe-B magnet material |
| 03/14/1989 | US4812181 Method of achieving a flat magnetization loop in amorphous cores by heat treatment |
| 03/14/1989 | CA1251029A1 Method of manufacturing electromagnetic members |
| 03/08/1989 | EP0306287A2 Superconducting ceramic circuits and manufacturing method for the same |
| 03/07/1989 | USH591 Method of manufacturing of a magic ring |
| 03/07/1989 | US4810592 Thin film magnetic recording medium and producing method of the same |
| 03/07/1989 | US4810572 Molding, rare earth, epoxy-crosslinked polyester binder |
| 03/07/1989 | US4810347 Penning type cathode for sputter coating |
| 03/07/1989 | US4810325 Liquid-phase-epitaxy deposition method in the manufacture of devices |
| 03/07/1989 | US4809917 Automatic wire replacing system for use in an automatic wire coiling apparatus |
| 03/07/1989 | US4809411 Method for improving the magnetic properties of wound core fabricated from amorphous metal |
| 03/07/1989 | CA1250992A1 Heat curable polyglycidyl aromatic amine encapsulants |
| 03/01/1989 | CN2033541U Electromagnetic coil with thermal pipe radiator |
| 02/28/1989 | US4808959 Electrical coil with tap transferring to end-layer position |
| 02/28/1989 | US4808958 Linear variable differential transformer with improved secondary windings |
| 02/28/1989 | US4808224 Method of consolidating FeNdB magnets |
| 02/28/1989 | US4808216 Gas phase pyrolysis of diluted transition metal carbonyl in magnetic field |
| 02/22/1989 | EP0304373A2 Process for the obtention of a pattern, especially from a ferromagnetic material having flanks with different steepnesses, and magnetic head with such a pattern |
| 02/22/1989 | EP0304343A2 Pack of laminations and forming projections and depressions |
| 02/15/1989 | EP0303324A1 Magnetic material, method of manufacturing this material and a magnetic head provided with this material |
| 02/14/1989 | US4803773 Method of making magnetic cores |
| 02/08/1989 | EP0302598A1 Method of lubrication during hot working of rare earth-transition metal alloys |
| 02/07/1989 | US4803453 Laminated transformer |
| 01/26/1989 | DE3738738C1 Powder-metallurgical process for producing targets |
| 01/24/1989 | US4799310 Method for manufacturing a bar antenna |
| 01/18/1989 | EP0299554A1 Method for securing wire coiled onto a spool, apparatus for securing wire coiled onto a spool, as well as spool containing wire coiled thereon |
| 01/18/1989 | EP0299498A1 Magnetic core and method of producing same |
| 01/18/1989 | EP0299442A1 Method for producing a small superconducting solenoid |
| 01/17/1989 | US4799119 Flexible circuit magnetic core winding for a core member |
| 01/12/1989 | DE3811655A1 Multipolar cylindrical permanent magnet - comprises sintered rare-earth iron-boride with optimised thickness for highest flux density and cracking resistance |
| 01/11/1989 | EP0298773A1 Skeining apparatus |
| 01/11/1989 | EP0298461A1 A superconducting coil and method for producing the same |
| 01/11/1989 | EP0298274A1 Process for structurizing a copper and/or permalloy layer by dry etching |
| 01/03/1989 | US4795309 Turbine housing for turbocharger |
| 12/28/1988 | CA1247338A Method of constructing an electrical transformer |
| 12/27/1988 | US4794047 Method of manufacturing magnetic recording medium |
| 12/27/1988 | US4793563 Wire holding device for coil winding machine having wire chip removing mechanism |
| 12/22/1988 | DE3719306A1 Magnet for NMR tomographs and process for the production thereof |