IPC-Stelle: H01F 30/00 [Version 2006.01]

SymbolTypTitel
HSKSECTION H — ELECTRICITY
H01KLBASIC ELECTRIC ELEMENTS
H01FUKLMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES (ceramics based on ferrites C04B 35/26; alloys C22C; thermomagnetic devices H01L 37/00; loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers H04R) [2]
H01F 1/00HGRMagnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties (thin magnetic films characterised by their composition H01F 10/10)
H01F 1/01UGR1
.of inorganic materials (H01F 1/44 takes precedence) [6]
H01F 1/03UGR2
. .characterised by their coercivity [6]
H01F 1/032UGR3
. . .of hard-magnetic materials [6]
H01F 1/04UGR4
. . . .metals or alloys [6]
H01F 1/047UGR5
. . . . .Alloys characterised by their composition [5, 6]
H01F 1/053UGR6
. . . . . .containing rare earth metals [5, 6]
H01F 1/055UGR7
. . . . . . .and magnetic transition metals, e.g. SmCo5 [6]
H01F 1/057UGR8
. . . . . . . .and IIIa elements, e.g. Nd2Fe14B [6]
H01F 1/058UGR8
. . . . . . . .and IVa elements, e.g. Gd2Fe14C [6]
H01F 1/059UGR8
. . . . . . . .and Va elements, e.g. Sm2Fe17N2 [6]
H01F 1/06UGR5
. . . . .in the form of particles, e.g. powder (H01F 1/047 takes precedence) [5, 6]
H01F 1/08UGR6
. . . . . .pressed, sintered, or bound together [6]
H01F 1/09UGR4
. . . .mixtures of metallic and non-metallic particles; metallic particles having oxide skin [6]
H01F 1/10UGR4
. . . .non-metallic substances, e.g. ferrites [6]
H01F 1/11UGR5
. . . . .in the form of particles [6]
H01F 1/113UGR6
. . . . . .in a bonding agent [6]
H01F 1/117UGR7
. . . . . . .Flexible bodies [6]
H01F 1/12UGR3
. . .of soft-magnetic materials [6]
H01F 1/14UGR4
. . . .metals or alloys [6]
H01F 1/147UGR5
. . . . .Alloys characterised by their composition [5, 6]
H01F 1/153UGR6
. . . . . .Amorphous metallic alloys, e.g. glassy metals [5, 6]
H01F 1/16UGR5
. . . . .in the form of sheets (H01F 1/147 takes precedence) [5, 6]
H01F 1/18UGR6
. . . . . .with insulating coating [6]
H01F 1/20UGR5
. . . . .in the form of particles, e.g. powder (H01F 1/147 takes precedence) [5, 6]
H01F 1/22UGR6
. . . . . .pressed, sintered, or bound together [6]
H01F 1/24UGR7
. . . . . . .the particles being insulated [6]
H01F 1/26UGR8
. . . . . . . .by macromolecular organic substances [6]
H01F 1/28UGR6
. . . . . .dispersed or suspended in a bonding agent [6]
H01F 1/33UGR4
. . . .mixtures of metallic and non-metallic particles; metallic particles having oxide skin [6]
H01F 1/34UGR4
. . . .non-metallic substances, e.g. ferrites [6]
H01F 1/36UGR5
. . . . .in the form of particles [6]
H01F 1/37UGR6
. . . . . .in a bonding agent [6]
H01F 1/375UGR7
. . . . . . .Flexible bodies [6]
H01F 1/38UGR5
. . . . .amorphous, e.g. amorphous oxides [6]
H01F 1/40UGR2
. .of magnetic semiconductor materials, e.g. CdCr2S4 (devices using galvano-magnetic or similar effects H01L 43/00) [6]
H01F 1/42UGR1
.of organic or organo-metallic materials (H01F 1/44 takes precedence) [6]
H01F 1/44UGR1
.of magnetic liquids, e.g. ferrofluids (particles in a bonding agent H01F 1/28, H01F 1/36) [6]
H01F 3/00HGRCores, yokes, or armatures (magnetic materials H01F 1/00; permanent magnets H01F 7/02)
H01F 3/02UGR1
.made from sheets
H01F 3/04UGR1
.made from strips or ribbons
H01F 3/06UGR1
.made from wires
H01F 3/08UGR1
.made from powder (powder coatings on sheets H01F 3/02, on strips or ribbons H01F 3/04, on wires H01F 3/06)
H01F 3/10UGR1
.Composite arrangements of magnetic circuits
H01F 3/12UGR2
. .Magnetic shunt paths
H01F 3/14UGR2
. .Constrictions; Gaps, e.g. air-gaps (in magnetic shunt paths H01F 3/12)
H01F 5/00HGRCoils (superconducting coils H01F 6/06; fixed inductances of the signal type H01F 17/00)
H01F 5/02UGR1
.wound on non-magnetic supports, e.g. formers
H01F 5/04UGR1
.Arrangements of electric connections to coils, e.g. leads
H01F 5/06UGR1
.Insulation of windings
H01F 6/00HGRSuperconducting magnets; Superconducting coils [6]
H01F 6/02UGR1
.Quenching; Protection arrangements during quenching [6]
H01F 6/04UGR1
.Cooling [6]
H01F 6/06UGR1
.Coils, e.g. winding, insulating, terminating or casing arrangements therefor [6]
H01F 7/00HGRMagnets (superconducting magnets H01F 6/00; for separation of solid materials from solid materials or fluids B03C 1/00; for bench or like work-holders B23B 31/28, B23Q 3/00; work-holding devices B25B 11/00; lifting magnets B66C 1/00; for electric meters G01R; for relays H01H; for dynamo-electric machines H02K)
H01F 7/02UGR1
.Permanent magnets
H01F 7/04UGR2
. .Means for releasing the attractive force
H01F 7/06UGR1
.Electromagnets; Actuators including electromagnets [6]
H01F 7/08UGR2
. .with armatures
H01F 7/10UGR3
. . .specially adapted for ac
H01F 7/11UGR4
. . . .reducing or eliminating the effects of eddy currents [6]
H01F 7/12UGR4
. . . .having anti-chattering arrangements
H01F 7/121UGR3
. . .Guiding or setting position of armatures, e.g. retaining armatures in their end position [6]
H01F 7/122UGR4
. . . .by permanent magnet [6]
H01F 7/123UGR4
. . . .by ancillary coil [6]
H01F 7/124UGR4
. . . .by mechanical latch, e.g. detent [6]
H01F 7/126UGR3
. . .Supporting or mounting [6]
H01F 7/127UGR3
. . .Assembling [6]
H01F 7/128UGR3
. . .Encapsulating, encasing or sealing [6]
H01F 7/129UGR4
. . . .of armatures [6]
H01F 7/13UGR3
. . .characterised by pulling-force characteristic
H01F 7/14UGR3
. . .Pivoting armatures (H01F 7/17 takes precedence) [6]
H01F 7/16UGR3
. . .Rectilinearly-movable armatures (H01F 7/17 takes precedence) [6]
H01F 7/17UGR3
. . .Pivoting and rectilinearly-movable armatures [6]
H01F 7/18UGR3
. . .Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
H01F 7/20UGR2
. .without armatures (cores H01F 3/00; coils H01F 5/00)
H01F 10/00HGRThin magnetic films, e.g. of one-domain structure (magnetic record carriers G11B 5/00; thin-film magnetic stores G11C)
H01F 10/06UGR1
.characterised by the coupling or physical contact with connecting or interacting conductors
H01F 10/08UGR1
.characterised by magnetic layers (applying magnetic films to substrates H01F 41/14) [3]
H01F 10/10UGR2
. .characterised by the composition [3]
H01F 10/12UGR3
. . .being metals or alloys (intermetallic compounds H01F 10/18) [3]
H01F 10/13UGR4
. . . .Amorphous metallic alloys, e.g. glassy metals [7]
H01F 10/14UGR4
. . . .containing iron or nickel (H01F 10/13, H01F 10/16 take precedence) [3, 7]
H01F 10/16UGR4
. . . .containing cobalt (H01F 10/13 takes precedence) [3, 7]
H01F 10/18UGR3
. . .being compounds [3]
H01F 10/187UGR4
. . . .Amorphous compounds [7]
H01F 10/193UGR4
. . . .Magnetic semiconductor compounds [7]
H01F 10/20UGR4
. . . .Ferrites [3]
H01F 10/22UGR5
. . . . .Orthoferrites [3]
H01F 10/24UGR5
. . . . .Garnets [3]
H01F 10/26UGR1
.characterised by the substrate or intermediate layers (H01F 10/32 takes precedence) [3, 7]
H01F 10/28UGR2
. .characterised by the composition of the substrate [3]
H01F 10/30UGR2
. .characterised by the composition of intermediate layers [3]
H01F 10/32UGR1
.Spin-exchange-coupled multilayers, e.g. nanostructured superlattices [7]
H01F 13/00HGRApparatus or processes for magnetising or demagnetising (for degaussing ships B63G 9/06; for clocks or watches G04D 9/00; demagnetising arrangements for colour television H04N 9/29)
H01F 17/00HGRFixed inductances of the signal type (coils in general H01F 5/00)
H01F 17/02UGR1
.without magnetic core
H01F 17/03UGR2
. .with ceramic former
H01F 17/04UGR1
.with magnetic core
H01F 17/06UGR2
. .with core substantially closed in itself, e.g. toroid
H01F 17/08UGR3
. . .Loading coils for telecommunication circuits
H01F 19/00HGRFixed transformers or mutual inductances of the signal type (H01F 36/00 takes precedence) [3]
H01F 19/02UGR1
.Audio-frequency transformers or mutual inductances, i.e. not suitable for handling frequencies considerably beyond the audio range
H01F 19/04UGR1
.Transformers or mutual inductances suitable for handling frequencies considerably beyond the audio range (resonant circuits H03H)
H01F 19/06UGR2
. .Broad-band transformers, e.g. suitable for handling frequencies well down into the audio range
H01F 19/08UGR2
. .Transformers having magnetic bias, e.g. for handling pulses
H01F 21/00HGRVariable inductances or transformers of the signal type (H01F 36/00 takes precedence) [3]
H01F 21/02UGR1
.continuously variable, e.g. variometers
H01F 21/04UGR2
. .by relative movement of turns or parts of windings
H01F 21/06UGR2
. .by movement of core or part of core relative to the windings as a whole
H01F 21/08UGR2
. .by varying the permeability of the core, e.g. by varying magnetic bias
H01F 21/10UGR2
. .by means of a movable shield
H01F 21/12UGR1
.discontinuously variable, e.g. tapped
H01F 27/00HGRDetails of transformers or inductances, in general [6]
H01F 27/02UGR1
.Casings
H01F 27/04UGR2
. .Leading of conductors or axles through casings, e.g. for tap-changing arrangements
H01F 27/06UGR1
.Mounting, supporting, or suspending transformers, reactors, or choke coils
H01F 27/08UGR1
.Cooling (heat-transfer elements F28F); Ventilating (structural details of casings H01F 27/02)
H01F 27/10UGR2
. .Liquid cooling
H01F 27/12UGR3
. . .Oil cooling
H01F 27/14UGR4
. . . .Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
H01F 27/16UGR3
. . .Water cooling
H01F 27/18UGR3
. . .by evaporating liquids
H01F 27/20UGR2
. .Cooling by special gases or non-ambient air
H01F 27/22UGR2
. .Cooling by heat conduction through solid or powdered fillings
H01F 27/23UGR1
.Corrosion protection [6]
H01F 27/24UGR1
.Magnetic cores
H01F 27/245UGR2
. .made from sheets, e.g. grain-oriented (H01F 27/26 takes precedence) [5]
H01F 27/25UGR2
. .made from strips or ribbons (H01F 27/26 takes precedence) [5]
H01F 27/255UGR2
. .made from particles (H01F 27/26 takes precedence) [5]
H01F 27/26UGR2
. .Fastening parts of the core together; Fastening or mounting the core on casing or support (on coil H01F 27/30)
H01F 27/28UGR1
.Coils; Windings; Conductive connections
H01F 27/29UGR2
. .Terminals; Tapping arrangements [6]
H01F 27/30UGR2
. .Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
H01F 27/32UGR2
. .Insulating of coils, windings, or parts thereof
H01F 27/33UGR1
.Arrangements for noise damping
H01F 27/34UGR1
.Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
H01F 27/36UGR2
. .Electric or magnetic shields or screens (movable for varying inductance H01F 21/10) [6]
H01F 27/38UGR2
. .Auxiliary core members; Auxiliary coils or windings
H01F 27/40UGR1
.Structural association with built-in electric component, e.g. fuse
H01F 27/42UGR1
.Circuits specially adapted for the purpose of modifying, or compensating for, electric characteristics of transformers, reactors, or choke coils (circuits for controlling transformers, reactors or choke coils, for the purpose of obtaining a desired output H02P 13/00; impedance networks H03H) [6]
H01F 29/00HGRVariable transformers or inductances not covered by group H01F 21/00
H01F 29/02UGR1
.with tappings on coil or winding; with provision for rearrangement or interconnection of windings
H01F 29/04UGR2
. .having provision for tap-changing without interrupting the load current
H01F 29/06UGR1
.with current collector gliding or rolling on or along winding
H01F 29/08UGR1
.with core, coil, winding, or shield movable to offset variation of voltage or phase shift, e.g. induction regulators
H01F 29/10UGR2
. .having movable part of magnetic circuit
H01F 29/12UGR2
. .having movable coil, winding, or part thereof; having movable shield
H01F 29/14UGR1
.with variable magnetic bias (magnetic amplifiers H03F)
H01F 30/00HGRFixed transformers not covered by group H01F 19/00 [6]
H01F 30/02UGR1
.Auto-transformers [6]
H01F 30/04UGR1
.having two or more secondary windings, each supplying a separate load, e.g. for radio set power supplies [6]
H01F 30/06UGR1
.characterised by the structure [6]
H01F 30/08UGR2
. .without magnetic core [6]
H01F 30/10UGR2
. .Single-phase transformers (H01F 30/16 takes precedence) [6]
H01F 30/12UGR2
. .Two-phase, three-phase or polyphase transformers [6]
H01F 30/14UGR3
. . .for changing the number of phases [6]
H01F 30/16UGR2
. .Toroidal transformers [6]
H01F 36/00HGRTransformers with superconductive windings or with windings operating at cryogenic temperatures (superconducting magnets or superconducting coils H01F 6/00) [3]
H01F 37/00HGRFixed inductances not covered by group H01F 17/00 [6]
H01F 38/00HGRAdaptations of transformers or inductances for specific applications or functions [6]
H01F 38/02UGR1
.for non-linear operation [6]
H01F 38/04UGR2
. .for frequency changing [6]
H01F 38/06UGR2
. .for changing the wave shape [6]
H01F 38/08UGR1
.High-leakage transformers or inductances [6]
H01F 38/10UGR2
. .Ballasts, e.g. for discharge lamps [6]
H01F 38/12UGR1
.Ignition, e.g. for IC engines [6]
H01F 38/14UGR1
.Inductive couplings [6]
H01F 38/16UGR1
.Cascade transformers, e.g. for use with extra high tension [6]
H01F 38/18UGR1
.Rotary transformers [6]
H01F 38/20UGR1
.Instrument transformers [6]
H01F 38/22UGR2
. .for single phase ac [6]
H01F 38/24UGR3
. . .Voltage transformers [6]
H01F 38/26UGR4
. . . .Constructions [6]
H01F 38/28UGR3
. . .Current transformers [6]
H01F 38/30UGR4
. . . .Constructions [6]
H01F 38/32UGR4
. . . .Circuit arrangements [6]
H01F 38/34UGR3
. . .Combined voltage and current transformers [6]
H01F 38/36UGR4
. . . .Constructions [6]
H01F 38/38UGR2
. .for polyphase ac [6]
H01F 38/40UGR2
. .for dc [6]
H01F 38/42UGR1
.Flyback transformers [6]
H01F 41/00HGRApparatus or processes specially adapted for manufacturing or assembling the devices covered by this subclass
H01F 41/02UGR1
.for manufacturing cores, coils, or magnets (H01F 41/14 takes precedence; for dynamo-electric machines H02K 15/00) [3]
H01F 41/04UGR2
. .for manufacturing coils
H01F 41/06UGR3
. . .Winding
H01F 41/08UGR4
. . . .Winding conductors on to or threading conductors through cores or formers which are closed in themselves, e.g. toroids (for interconnecting digital storage elements G11C 5/12)
H01F 41/10UGR3
. . .Connecting leads to windings (making electric connections in general H01R 43/00)
H01F 41/12UGR3
. . .Insulating of windings (of conductors in general H01B 13/06)
H01F 41/14UGR1
.for applying magnetic films to substrates (covering metals, or materials with metals, in general C23C; manufacturing record carriers G11B 5/84) [3]
H01F 41/16UGR2
. .the magnetic material being applied in the form of particles, e.g. by serigraphy (H01F 41/18 takes precedence) [3, 7]
H01F 41/18UGR2
. .by cathode sputtering [3]
H01F 41/20UGR2
. .by evaporation [3]
H01F 41/22UGR2
. .Heat treatment; Thermal decomposition; Chemical vapour deposition [3]
H01F 41/24UGR2
. .from liquids [3]
H01F 41/26UGR3
. . .using electric currents [3]
H01F 41/28UGR3
. . .by liquid phase epitaxy [3]
H01F 41/30UGR2
. .for applying nanostructures, e.g. by molecular beam epitaxy (MBE) [7]
H01F 41/32UGR1
.for applying conductive, insulating or magnetic material on a magnetic film [7]
H01F 41/34UGR2
. .in patterns, e.g. by lithography [7]