Patents
Patents for H01F 41 - Apparatus or processes specially adapted for manufacturing or assembling the devices covered by this subclass (27,155)
06/1988
06/08/1988EP0270417A1 Inductor
06/07/1988US4749978 Magnet for catching thereon foreign bodies within reticulum or ruminant, and method and instrument for manufacture thereof
06/07/1988CA1237575A1 Method of constructing a padmounted distribution transformer
06/01/1988EP0269347A2 Wound core having cross section periphery with circular and elliptic portions
05/1988
05/31/1988US4748045 Method and apparatus for photodeposition of films on surfaces
05/31/1988US4747207 Manufacture of magnetic cores from blanks of magnetically permeable sheet material
05/31/1988US4747206 Method of producing electrical coil units, particularly for ignition apparatus
05/25/1988CN87211252U Ballast terminal
05/24/1988US4746889 Method of making a magnet arrangement and magnet arrangement made by the method
05/24/1988US4746580 Read-only magnetic recording media
05/24/1988US4746075 Precision coil winding machine and method
05/24/1988US4745682 Method of connecting coil
05/24/1988US4745677 Method of making an electromagnetic induction apparatus
05/24/1988CA1236964A2 Toroidal electrical transformer and method of producing same
05/17/1988US4744838 Method of continuously processing amorphous metal punchings
05/11/1988DE3735385A1 Process for producing a magneto-optic recording medium
05/11/1988DE3638051A1 Device for processing components
05/11/1988CN87105579A Method of making magnetic core
05/10/1988US4743467 Method for preparing magnetic recording medium
05/10/1988US4743311 Alloys, lasers, milling, diffusion, magnetism, compaction, deformation
05/10/1988CA1236274A1 Method and apparatus for winding torodial coils
05/10/1988CA1236273A1 Strip core winder for core-coil assembly
05/03/1988US4741484 Apparatus and method for winding a magnetic core for toroidal transformer
05/03/1988US4741096 Method of manufacturing wound transformer core
04/1988
04/27/1988EP0265364A1 Permanent magnet assembly and method of making same
04/27/1988EP0265016A2 Process of making a permanent magnet
04/27/1988EP0265006A1 Method of manufacturing a permanent magnet
04/27/1988EP0264807A1 Winding device
04/27/1988EP0264578A1 Method of winding, and machine for winding and for connecting the terminals for carrying out said method
04/26/1988US4739947 Conical coiling of wire on a spool with at least one conically formed flange
04/26/1988CA1235825A1 Method of making magnetic bubble devices containing bismuth-containing garnet films
04/21/1988DE3732116A1 Magnetisable screen printing ink and process for preparing a sheet magnet
04/19/1988CA1235287A1 Winding machine for odd shaped transformer cores
04/14/1988DE3634668A1 Winding device
04/12/1988US4736513 Miniature inductor and method of manufacturing same
04/06/1988EP0262329A1 Flexible circuit magnetic core winding for a core member
04/05/1988US4735865 Aluminum, silicon, chromium, iron; corrosion resistance
04/05/1988US4734975 Method of manufacturing an amorphous metal transformer core and coil assembly
04/05/1988US4734974 Method of assembling an electrical coil and terminal therefor
03/1988
03/31/1988DE3732001A1 Method for producing coils having multiple windings on a winding former having connecting tabs for the winding wire, and a machine for carrying out the method
03/30/1988EP0261292A2 Method of producing fully dense permanent magnet alloy article
03/24/1988DE3730132A1 Sheet-metal conveying apparatus
03/23/1988EP0260387A1 Method for producing a magnet arrangement and magnet arrangement obtained by this method
03/22/1988US4733213 Layer winding for electrical equipment
03/22/1988CA1234378A1 Toroidal core winding apparatus
03/17/1988DE3640112C1 Method and device for producing electrodynamic ultrasonic transducer coils
03/17/1988DE3630827A1 Method for making contact with electrical components during manufacture
03/17/1988DE3626197A1 Installation for producing pot-type core coils
03/16/1988EP0259975A1 Method for forming ferrite film
03/16/1988CN87203038U Reverse rewind segment wire pusher attached to the large-size vertical winding machine
03/15/1988US4731299 Composite magnetic material
03/15/1988US4730777 Method and apparatus for winding ring cores, ring coils, ring core parts or ring coil parts
03/15/1988CA1233968A1 Method of making a void-free non-cellulose electrical winding
03/10/1988WO1988001789A1 Apparatus for air gapping the armature in a compound spool valve
03/09/1988EP0259194A2 Forming ferrite film
03/09/1988EP0258796A1 Apparatus for forming windings on rotors of electric machines
03/09/1988EP0258344A1 Electrical component with inductive and capacitive properties.
03/08/1988US4730241 Laminated hybrid integrated DC-DC converter
03/08/1988US4730095 Method of producing planar electrical circuits
03/02/1988EP0257767A1 Improved demagnetization apparatus for magnetic markers used with article surveillance systems
03/02/1988EP0257428A1 Electric connector pin for surface-mountable electric bobbins
03/02/1988EP0257330A1 Winding device for a transmitter
03/02/1988EP0257246A2 Process for the production of a magnetic head
03/01/1988US4728390 High density pattern
02/1988
02/24/1988EP0256938A2 Lithographic technique using laser for fabrication of electronic components and the like
02/24/1988EP0256347A1 Method of making a magnetic core
02/24/1988CN87104150A Flat coil and method for manufacturing the same
02/23/1988US4726855 Winding annealing coils around yokes of cores, flowing electric current to heat coils
02/18/1988DE3626199A1 Device for producing pot-type core coils
02/18/1988DE3626032A1 Device for producing pot-type core coils
02/16/1988US4725009 Toroidal coil winding machine for tape or heavy wire
02/16/1988US4724604 Method of manufacturing a part with a coil
02/16/1988US4724603 Process for producing a toroidal winding of small dimensions and optimum geometry
02/11/1988DE3626042A1 Method for producing pot-type core coils
02/11/1988DE3626034A1 Method for automatically testing pot-core coils
02/10/1988EP0255613A2 Process for manufacturing bipolar or multipolar permanent magnets with a high magnetic energy density
02/09/1988US4723349 Method of making fixture for the window of a magnetic core
02/03/1988EP0254792A1 Magnetic cores and methods of making the same
01/1988
01/27/1988EP0254205A2 Process for preparing transparent protective silicon coatings
01/26/1988US4721658 Amorphous magneto optical recording medium
01/26/1988US4721261 Winding appliance for toroidal core coils
01/26/1988US4720916 Process for producing protective envelopes in which corresponding electric-electronic circuit components are dipped
01/26/1988CA1232040A1 Electrical coil assembly and terminal therefor
01/21/1988DE3623485A1 Method for producing high-voltage-resistant transformers and inductors
01/21/1988DE3623271A1 Laminated iron core for transformers and inductors having two or three wound core limbs
01/20/1988EP0253282A2 Thin-film having large kerr rotation angle and production process thereof
01/19/1988CA1231629A1 Process for producing ion implanted bubble device
01/14/1988WO1988000387A1 Process for producing permanent magnets
01/12/1988US4719422 Eddy-current probes especially for the scanning of non-flat profiled surfaces
01/07/1988EP0251993A1 Method of and device for assembling lamination packets, particularly for transformer cores
01/07/1988EP0251321A1 Iron core of electromagnet and method of producing the same
01/07/1988EP0251233A1 Anisotropic rare earth magnet material and production process thereof
01/07/1988EP0251029A1 Method of manufacturing a flat ribbon-shaped coil
01/05/1988US4717627 Dynamic high pressure process for fabricating superconducting and permanent magnetic materials
01/05/1988US4717584 Method of manufacturing a magnetic thin film
12/1987
12/29/1987US4715904 Method for producing a magnet with radial magnetic anisotropy
12/29/1987US4715891 Method of preparing a magnetic material
12/23/1987EP0250371A1 Method of preparing stacks of laminations for magnetic circuits in transformers or electric motors
12/22/1987US4713877 Method of forming permanent magnets within a motor yoke
12/15/1987US4712723 Method for bonding an insulated wire element on a contact