| Patents for H02K 1 - Details of the magnetic circuit (44,776) |
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| 02/19/1992 | CN2096837U Wind colling system for round tube type straight electrical machinery |
| 02/19/1992 | CN2096836U Fissure type magnetic pole device of permanent-magnet generator |
| 02/19/1992 | CN1058863A Rotor of motor having nobrush and their production method |
| 02/18/1992 | US5089731 Stator core vent structures |
| 02/18/1992 | US5089730 Low noise DC electric motor |
| 02/18/1992 | US5088899 Pump with drive motor |
| 02/12/1992 | EP0470852A2 An electric motor assembly |
| 02/12/1992 | EP0470074A1 Stabilized disk drive spin motor. |
| 02/12/1992 | CN2096157U Permanent magnetic wind generator |
| 02/12/1992 | CN2096149U Integrated masaic magnetic micro motor |
| 02/06/1992 | WO1992002068A1 Electric motor |
| 02/05/1992 | EP0468958A1 Large-diameter a.c. motor with joints in the stator |
| 02/05/1992 | CN1058494A Tube-type linear motor |
| 02/05/1992 | CN1058491A Energy-saving ac electric generator |
| 02/04/1992 | USRE33813 Electric motor, particularly a brushless direct current motor |
| 02/04/1992 | US5086246 Salient pole rotor for a dynamoelectric machine |
| 02/04/1992 | US5086245 Brushless DC motor slotted tooth lamination |
| 01/23/1992 | WO1992001326A1 Rotor of brushless motor and manufacture thereof |
| 01/23/1992 | WO1992001325A1 Reaction cylinder for small electric motors |
| 01/22/1992 | CN2094150U Inner cased stator of single-phase shaded-pole motor |
| 01/21/1992 | US5083054 Permanent magnet field type dc machine |
| 01/21/1992 | US5083052 Electric fan motor and a method for producing the same |
| 01/15/1992 | EP0466153A2 Miniature electric motor |
| 01/15/1992 | EP0465589A1 Clam-shell stator construction for electrical machines |
| 01/15/1992 | EP0188601B1 Slotless and toothless wound stators and methods of production |
| 01/15/1992 | CN2093432U Combined permanent magnetic steel |
| 01/15/1992 | CN1057930A Running efficiency improving method for small size asynchronous motor |
| 01/14/1992 | US5081383 Rotor for vehicle dynamo |
| 01/09/1992 | DE4122067A1 DC electric motor with electronic commutation - has slit at centre of each T=shaped stator pole |
| 01/09/1992 | DE4021599A1 Brushless DC motor with permanent magnet rotor - has stator pole shoes supported by shells at each end of rotor shaft |
| 01/07/1992 | US5079467 Radial drive for fluid pump |
| 01/07/1992 | US5079466 Method of mounting motor lamination stacks |
| 01/02/1992 | EP0463895A1 Direct current electric traction motor for automotive vehicle |
| 01/01/1992 | CN2092163U Axial-flow dc motor using rare-earth permanent magnet |
| 01/01/1992 | CN2092162U Digital-controlled full-speed synchronous motor using rare-earth magnet |
| 01/01/1992 | CN2092160U Electromagnetic clutch of electric generator |
| 01/01/1992 | CN2092159U A.c motor |
| 01/01/1992 | CN2091980U Breeze ceiling fan with synchronous motor using integral magnetic ring |
| 01/01/1992 | CN1057551A Liquid cooling rator of electrical machine |
| 12/25/1991 | CN2091507U Non-conventional type slot single-phase asynchronous motor |
| 12/25/1991 | CN1057368A Constant voltage a.c. generator for tracotor |
| 12/18/1991 | EP0461905A2 Liquid cooling the rotor of a electrical machine |
| 12/18/1991 | EP0461490A1 Torque motor with rotor pole pieces |
| 12/17/1991 | US5073738 Direct current motor having a retaining device for holding magnets |
| 12/11/1991 | CN1056961A Rotor slot insulation in rotors with subslots |
| 12/11/1991 | CN1015081B Assembly method of nd-fe-b permanent magnet electric motor for car |
| 12/11/1991 | CN1015080B Miniature motor |
| 12/11/1991 | CN1015079B Laminated pole |
| 12/05/1991 | DE4115887A1 Permanent magnet rotor dynamoelectric machine - has rotor-coaxial stator coil with axial flux paths in rotor and stator |
| 12/04/1991 | EP0459716A1 Slot insulation for electrical machines |
| 12/04/1991 | EP0459355A1 Permanent magnet type rotor |
| 12/04/1991 | CN1056779A Reducing harmonic losses in dynamoelectric machine rotors |
| 12/04/1991 | CN1056778A Electric motor energy-saving improved method |
| 12/03/1991 | US5070268 Rotor of a magnetomotive device |
| 12/03/1991 | US5070264 Brushless dc motor |
| 11/28/1991 | WO1991018439A1 Structure of rotor of synchronous motor |
| 11/27/1991 | CN2089671U New structure of megger generator rotor |
| 11/26/1991 | US5067993 Magnetic core material made of fe-co base alloy for high frequencies |
| 11/21/1991 | EP0334901B1 Transverse flow machine in a collector arrangement |
| 11/20/1991 | CN1056383A Electric motor with combined magnetic pole of nd-fe-b permanent magnet and soft magnet |
| 11/19/1991 | US5066882 Stator core assembly |
| 11/19/1991 | US5066880 Permanent magnet polyphase synchronous machine |
| 11/19/1991 | CA1292268C Electronically commutated, collectorless direct-current motor |
| 11/14/1991 | DE4101666A1 Universal motor with subdivided stack of stator laminations - having rotor position defined by U=section frames inserted between field windings into grooves |
| 11/14/1991 | DE4014946A1 Miniature permanent magnetic field motor |
| 11/13/1991 | EP0456498A2 Reducing harmonic losses in dynamoelectric machine rotors |
| 11/13/1991 | EP0300057B1 Engine starter |
| 11/13/1991 | CN1056192A Contactless claw pole motor |
| 11/13/1991 | CN1014747B Rotor, specially adapted for clocks stepping motor or watches stepping motor |
| 11/12/1991 | US5065064 Rotor slot insulation in rotors with subslots |
| 11/12/1991 | US5065063 Rotating apparatus |
| 11/05/1991 | US5063318 Preloaded permanent magnet rotor assembly |
| 11/05/1991 | US5062330 Machine tool with a cooled motor spindle |
| 10/31/1991 | WO1991016754A1 Synchronous machine |
| 10/30/1991 | CN2087841U High-efficiency non-symmetrical stator jaw pole permanent-magnet synchronous electric machine |
| 10/29/1991 | US5062095 Actuator and method of manufacturing thereof |
| 10/29/1991 | US5061868 Spindle motor |
| 10/17/1991 | WO1991015862A1 Soft magnetic core in a closed electromagnetic circuit |
| 10/15/1991 | US5057733 Modular coil cores for electric motor |
| 10/15/1991 | US5057731 Simplified spindle motor for disc drive |
| 10/15/1991 | US5057730 Structure for locating permanent magnets in dynamic electric machine |
| 10/15/1991 | US5057726 Structureborne vibration-compensated motor arrangement having back-to-back twin AC motors |
| 10/02/1991 | EP0449538A1 Dynamo electric machine |
| 10/02/1991 | EP0448863A1 Motor cover assembly and method |
| 10/02/1991 | CN2086017U Permanent-magnet dc motor with shunt electromagnetic pole in centre |
| 10/02/1991 | CN2086016U Permasyn motor with non-symmetrical stator claw-poles |
| 10/01/1991 | WO1991015892A1 Method of making an electromagnetic transducer |
| 10/01/1991 | US5054009 Motor, in particular, for driving a clockwork |
| 10/01/1991 | US5053667 Di- or polyphase synchronous electric motor with a disc-shaped rotor |
| 10/01/1991 | US5053657 Miniature motor |
| 10/01/1991 | CA1290011C Controlled thermal expansion of generator stator frames |
| 10/01/1991 | CA1290003C Lip structure for a stator in a dynamo-electric machine |
| 10/01/1991 | CA1290002C Dynamo-electric machine lamination construction |
| 09/27/1991 | WO1991015051A1 Electromagnetic actuator |
| 09/26/1991 | DE4107962A1 AC generator for automobile - has permanent magnet rotor with axial and radial cooling |
| 09/25/1991 | EP0448028A1 Torque motor with symmetrical air gaps |
| 09/24/1991 | US5051641 Transversal flow machine in accumulator arrangement |
| 09/24/1991 | US5051634 Motor stator heat spike |
| 09/24/1991 | CA1289609C Process and assembly for motor reducer |
| 09/19/1991 | DE4107867A1 Alternator for motor vehicle current supply - has permanent magnet rotor and electromagnet motor for flux-voltage regulation |