| Patents for H02K 21 - Synchronous motors having permanent magnet; Synchronous generators having permanent magnet (17,141) |
|---|
| 03/01/1994 | US5291358 Magnetic recording device |
| 03/01/1994 | US5291357 Magnetic recording device having reduced electromagnetic interference |
| 02/22/1994 | US5289072 Electrical machine |
| 02/22/1994 | US5289071 Polyphase electromagetic transducer with a permanent magnet, in particular a drive motor |
| 02/22/1994 | US5289066 Stator for dynamoelectric machine |
| 02/17/1994 | DE4226843A1 Centrifugal fan for heating and air-conditioning in car - has electric motor formed by permanent magnets mounted on impeller blades and ring-shaped stator winding |
| 02/17/1994 | DE4226548A1 Stellantrieb zur Drehwinkelverstellung eines Stellgliedes Actuator for adjusting the rotation angle of an actuator |
| 02/16/1994 | CN1023855C Synchronous machine |
| 02/09/1994 | CN1081792A 同步电机 Synchronous motors |
| 02/03/1994 | DE4234145C1 Mehrphasige elektrische Maschinem mit vorgefertigten Leitersträngen und Verfahren zu ihrer Herstellung Multiphase electric Maschinem with prefabricated conductor strands and process for their preparation |
| 02/03/1994 | DE4224757A1 Spindle synchronous motor for spinning and twisting - has adhesive bonded permanent magnets at circumference of cage around the rotor |
| 02/02/1994 | EP0581598A1 Synchronous motor |
| 02/02/1994 | EP0581173A1 Fuel supply device |
| 02/01/1994 | US5283491 Air-bearing motor assembly for magnetic recording systems |
| 01/27/1994 | DE4300440A1 Multiple track transversal flux machine with ring coils - has stator and rotor formed from several track-wise identical units to allow high rotor speed and/or large diameter |
| 01/27/1994 | DE4223836A1 Mechanical voltage control for permanent magnet generator mechanical voltage control - varies strength of magnetic field by sliding magnetic plates of two plate rotor generator which can move radially w.r.t. each other |
| 01/26/1994 | CN1081292A Magnetic motor construction |
| 01/26/1994 | CN1081290A Numerically controlled small wind-driven generator |
| 01/25/1994 | US5281879 Synchronous motor with two permanent magnet rotor portions |
| 01/20/1994 | WO1994001917A1 Electric motor-wheel |
| 01/18/1994 | US5280211 Motor and/or generator operating according to the reluctance principle |
| 01/18/1994 | US5280207 Spindle motor with disk clamping arrangement |
| 01/12/1994 | CN2153174Y Ring ac generator with four types (low, medium and high frequency) |
| 01/06/1994 | WO1994000903A1 Magnetic motor construction |
| 01/05/1994 | DE4220458A1 Electric motor with safety brake - comprises DC motor with high reluctance torque having permanent magnet rotor |
| 12/29/1993 | EP0576252A2 Magnetic motor construction |
| 12/28/1993 | US5274286 Spindle device with a built-in motor |
| 12/23/1993 | WO1993026077A1 Permanent magnet alternator |
| 12/23/1993 | WO1993026076A1 Rotor for synchronous motor |
| 12/22/1993 | EP0574960A2 Electric rotating motor |
| 12/22/1993 | CN2150669Y Permanent magnetic suspension-arm type brushless generator |
| 12/22/1993 | CN2150668Y Permanent magnetic generator for automobile |
| 12/22/1993 | CN2150667Y Three-phase generating DC electric welding machine |
| 12/16/1993 | DE4218888A1 Commutator machine with stator poles facing magnetised rotor segments - has oppositely wound pairs of pole pieces broadened into faces aligned with radially magnetised segments of external rotor |
| 12/15/1993 | EP0574039A1 Brushless motor |
| 12/15/1993 | EP0574010A2 Electronically commutated motor controlled with direct-current pulses |
| 12/09/1993 | WO1993024985A1 Rotational electric motor with retarder |
| 12/07/1993 | US5268604 Armature of a small motor employing an insulating holder having a plurality of sections |
| 12/07/1993 | US5268602 Electric machine, especially a dynamo for mounting on a wheel hub |
| 12/01/1993 | CN2148435Y AC precision midget synchronous motor |
| 11/25/1993 | DE4216938A1 Permanent magnet excited electric motor - has radial cross=section of soft magnetic yoke areas dimensioned w.r.t. the cross=section of the pole cores |
| 11/24/1993 | CN2147685Y Generator for bicycle decoration and lighting |
| 11/24/1993 | CN2147684Y Large power ac/dc permanent magnetic generator |
| 11/24/1993 | CN2147683Y Three-phase generating dc welding two-purpose machine |
| 11/23/1993 | CA1324636C Magnetic health device |
| 11/18/1993 | EP0569593A1 Disc device |
| 11/16/1993 | US5262693 Electrical generator having counter rotational fields |
| 11/14/1993 | CA2095669A1 Synchronous machine |
| 11/11/1993 | DE4214483A1 Permanent-magnet sync. machine with heat-conducting plates - is cooled by passive suction of air through slotted hub of split stator and radial ducts between revolving magnets |
| 11/10/1993 | EP0569306A1 Improvements to an electric motor and hydraulic pump using this motor |
| 11/09/1993 | US5260642 Torque driven dual PMG actuator |
| 11/09/1993 | US5260619 Frequency generator |
| 11/09/1993 | CA1323997C Dual stack tachometer/generator |
| 11/03/1993 | CN1078074A A miniature motor |
| 11/03/1993 | CN1078073A A miniature motor |
| 11/02/1993 | US5258735 Multi-pole composite magnet used in a magnetic encoder |
| 11/02/1993 | US5258697 Efficient permanent magnet electric motor |
| 10/28/1993 | DE4213380A1 Electronically commutated brushless DC motor with permanent magnets - has circumferential dimension of each rotor magnet equal to sum of breadths of adjacent stator tooth pole piece and gap |
| 10/28/1993 | DE4213379A1 Electronically commutated claw-pole motor - has rotor disc magnetised with alternate poles equal in width to parallel-edged claws of correspondingly spaced stator pole pieces |
| 10/27/1993 | EP0566788A1 Integral motor propulsion unit for water vehicles |
| 10/27/1993 | EP0566787A1 Dual propeller shock resistant submersible propulsor unit |
| 10/27/1993 | EP0566646A1 Improvements in thermoelectric refrigeration |
| 10/26/1993 | US5256922 Spindle motor |
| 10/26/1993 | CA2012147C Internal combustion engine with integral stator and regulator |
| 10/26/1993 | CA1323650C Electrically commutated motor having an edgewise wound yoke |
| 10/20/1993 | CN2144366Y Capacitor operation type electromagnetic speed reducing synchronous motor |
| 10/19/1993 | USRE34412 Disk storage drive having motor drive with non-corrodible hub |
| 10/19/1993 | US5254895 Motor for disc drive |
| 10/13/1993 | EP0565312A2 Integral motor and control |
| 10/13/1993 | EP0564516A1 Electric motor. |
| 10/12/1993 | US5252876 Frequency generator and a D.C. motor equipped with same |
| 10/12/1993 | US5252875 Integral motor propulsor unit for water vehicles with plural electric motors driving a single propeller |
| 10/12/1993 | US5252873 DC brushless motor |
| 10/06/1993 | EP0397682B1 A rotating electrical machine |
| 10/05/1993 | US5250867 Permanent magnet brushless DC motor having reduced cogging |
| 09/30/1993 | WO1993019512A1 Electromotive force generator |
| 09/29/1993 | EP0562610A1 Pair of cores with air gap of the truncated cone type, obtained from ferromagnetic tape for an electric rotary machine, in particular for an electric induction motor, and relative production method |
| 09/29/1993 | EP0561988A1 Motor having integral detent. |
| 09/22/1993 | EP0561463A1 Electrical machine and method of manufacturing the electrical machine |
| 09/22/1993 | EP0561425A1 Synchronous motor having selectable rotation direction |
| 09/22/1993 | CN2142618Y Bicycle illumination electricity generating and charging device |
| 09/21/1993 | CA1322283C Exciter rotor assembly |
| 09/16/1993 | WO1993018571A1 Electrical power generators |
| 09/16/1993 | DE4205985A1 Brushless external rotor motor - ensures small spacing between magnet and motor shaft with iron free coil around magnet |
| 09/14/1993 | US5245238 Axial gap dual permanent magnet generator |
| 09/14/1993 | US5245235 Motor having index detection mechanism used for disc apparatus and disc apparatus using such a motor |
| 09/14/1993 | US5245234 Motor |
| 09/07/1993 | US5243242 In-hub motor |
| 09/01/1993 | EP0558181A1 IC controlled DC motor |
| 09/01/1993 | CN2141618Y Single-phase brushfree neodymium iron boron ac generator |
| 08/31/1993 | US5241229 Magnetic disc drive motor |
| 08/31/1993 | US5240003 Ultrasonic instrument with a micro motor having stator coils on a flexible circuit board |
| 08/25/1993 | EP0557056A1 Electric hoist |
| 08/25/1993 | EP0556425A1 Multiple magnetic paths machine |
| 08/25/1993 | CN2141144Y Casing-driven electric machine |
| 08/20/1993 | CA2080162A1 Electromagnetic motor |
| 08/19/1993 | DE4204508A1 Power saving saturation motor - has segments having permeability reduced by electrical energy claimed back at end of switch operation |
| 08/11/1993 | EP0202337B1 Stepping motor |
| 08/05/1993 | WO1993015547A1 Brushless dc motors/generators |
| 08/05/1993 | DE4042432A1 Electronically commutated DC machine |