Patents
Sitemap › H02 - Generation, conversion, or distribution of electric power › H02K - Dynamo-electric machines › H02K 37 - Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors
Patents for H02K 37 - Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors (3,591)
04/2000
04/06/2000WO2000003471A9 Multi-functional electric stepper motor assembly
04/05/2000EP0991167A1 Stepping motor
04/04/2000US6046568 Staggered pole switched reluctance motor
04/04/2000US6046523 Computer controlled electric motor and method therefor
04/04/2000US6046519 Stepping motor
04/04/2000US6046517 Electric motor
03/2000
03/28/2000US6043574 Two-phase motor, particularly a time piece motor or a motor for driving the hand of a display
03/16/2000WO2000014851A1 High frequency synchronous rotary electrical machine
03/15/2000CN2369407Y Single phase stepping motor
03/08/2000EP0983628A2 Brushless synchronous rotary electrical machine
03/07/2000US6034450 Stepping motor and method of manufacturing hard magnetic alloy therefor
03/02/2000CA2246367A1 A two-phase stepper motor
02/2000
02/29/2000US6031305 Stepping motor with rotor and stator having related axial width
02/29/2000US6031304 Motor structure
02/23/2000EP0980599A1 A motor
02/22/2000US6028385 Switched reluctance motor
02/22/2000US6028377 Three-phase permanent magnet cascade claw type stepping motor
02/15/2000US6025661 Stepping motor with self alignable magnet
02/03/2000WO2000005803A1 Stepping motor combination and mirror for a vehicle, provided with such a stepping motor combination
02/02/2000EP0977339A2 Stator structure of claw pole stepping motor
02/01/2000US6020804 Electromagnetic actuator magnetically locked into two or more stable positions
01/2000
01/26/2000CN1242644A Arbitrary stepping angle driving device for two phase mixing stepping motor, and method for proceeding same
01/20/2000WO2000003471A1 Multi-functional electric stepper motor assembly
01/20/2000WO2000002728A1 Engraving member
01/13/2000DE19830471A1 Gravierorgan Engraving
01/04/2000CA2210161C Low cost twin bobbin motors and methods for making same
12/1999
12/28/1999US6008554 Claw-pole stepper motor having a rotor supported by an axial bearing and a rotor-magnet extending beyond an end of a stator return element
12/22/1999EP0966004A2 Propulsion magnetic field generator and energy converter having a propulsion magnetic field generator
12/16/1999WO1999064937A1 2-pole stepper motor for timepiece
12/14/1999US6002186 Electric stepper motor having a cylindrical magnetic rotor with a pair of cups made of magnetic material
12/01/1999CN1236959A Soft magnetic film, soft magnetic multilayer film, method of manufacturing the same and magnetic device using film
11/1999
11/25/1999DE19922622A1 DC torque motor
11/25/1999DE19821835A1 Concentric multiple rotational drive assembly for use in dial type measurement displays
11/24/1999EP0959359A1 Stepping motor type indicators
11/23/1999US5990651 Stepping motor drive apparatus and stepping motor
11/17/1999EP0957562A2 Stepping motor
11/16/1999US5986378 Electric motor and generator having amorphous core pieces being individually accommodated in a dielectric housing
11/09/1999US5982058 Two-phase stepper motor
11/02/1999US5977670 Connection structure of stepping motor
10/1999
10/28/1999DE19813155C1 Mehrsträngige Transversalflußmaschine Multi-strand transverse flux
10/26/1999US5973425 Motor
10/21/1999WO1999053599A1 Rotating action electromagnetic motor
10/19/1999US5969454 Switched reluctance motor
10/19/1999US5969453 Motor
10/19/1999US5969444 Stepping motor and taking lens barrel for camera incorporating said stepping motor
10/13/1999EP0949747A1 Polyphase motor, in particular for driving the hand of a display
10/07/1999WO1999050952A1 Stepping motor, printing device using it or paper feeding device, and printer
10/07/1999DE19815231A1 Außenläuferschrittmotor mit zweipolig diametral magnetisiertem Permanentmagnetrotor External rotor motor with step two diametrically magnetized pole permanent magnet rotor
10/07/1999DE19815230A1 Electric stepping motor for analogue display instrument
10/06/1999EP0948117A1 Stepping motor with diametrically magnetized two-pole permanent magnet external rotor
10/05/1999US5962947 Motor structure
09/1999
09/28/1999US5959378 Electromagnetic, two-phase pulse motor with two rotation directions
09/23/1999WO1999048190A1 Multi-phase transverse flux machine
09/22/1999CN1229535A Reluctance machine with fractional pitch winding and drive therefor
09/14/1999US5952759 Brushless synchronous rotary electrical machine
09/01/1999CN1044955C Step-by-step motor
08/1999
08/31/1999US5945759 Stepping motor
08/31/1999US5945750 Stepping motor
08/31/1999US5944523 Dental assembly having multi-movement motor
08/31/1999US5943760 Stepper motor and method of manufacture
08/19/1999WO1999041571A1 Shaft drive
08/19/1999DE19806118A1 Wellenantriebsvorrichtung Shaft drive apparatus
08/12/1999WO1999040674A1 Hybrid stepper motor having optimized torque density
08/10/1999US5936374 Repulsion motor
08/04/1999CN2332105Y Induction permanent-magnet stepping motor
08/04/1999CN1224946A Method for driving opening/closing member
07/1999
07/28/1999EP0932167A2 Hybrid-type magnet and stepping motor including same
07/27/1999US5929589 Stepping motor drive and a method of driving same
07/20/1999US5926664 Shutter
07/20/1999US5926000 Apparatus for obtaining three-phase position detection signals by means of two coils
07/20/1999US5925945 Compact motor with enhanced workability
06/1999
06/29/1999US5917263 In a specific rotational direction
06/29/1999US5917257 Electromagnetic motor with two coaxial rotors
06/23/1999EP0924843A1 Apparatus for winding a thread on a bobbin
06/23/1999CN2325916Y Stepper motor positioning device
06/01/1999US5909070 Two-phase electromechanical transducer and electromechanical device including at least one such transducer
06/01/1999US5909069 Fully integrated magnetic micromotors and methods for their fabrication
05/1999
05/12/1999EP0914703A1 Low cost multi-pole motor constructions and methods of manufacture
05/11/1999US5903082 Electric motor or generator having laminated amorphous metal core
04/1999
04/29/1999DE19747289A1 Stepping motor for indicator device e.g. combined instrument for motor vehicle
04/28/1999EP0910887A1 Reluctance machine with fractional pitch winding and drive therefor
04/22/1999WO1999019961A1 Brushless synchronous rotary electrical machine
04/15/1999DE19845044A1 Reluctance motor e.g. for vehicle and spinning machine used in textile industry
04/14/1999EP0909011A1 Connection structure of stepping motor
03/1999
03/30/1999US5889347 Reluctance machine with fractional pitch winding and drive therefore
03/23/1999US5886449 Electrical machine
03/23/1999US5886442 Magnetic attraction driving engine using permanent magnet
03/23/1999US5886438 Stepping motor having bobbin structure materially integrally formed with a bearing and a positioning portion
03/16/1999CA2158845C Brushless repulsion motor utilizing electronic switching circuits
03/09/1999US5880569 Motor for use in information recording device
03/09/1999US5880551 Polyphase motor, particularly for driving an indicator needle
03/03/1999CN2309664Y New structure of step motor
02/1999
02/24/1999EP0898287A2 Hard magnetic alloy having supercooled liquid region, sintered or cast product thereof and applications
02/23/1999US5874795 Multi-phase permanent-magnet type electric rotating machine
02/10/1999EP0896416A1 Stepping motor
02/04/1999WO1999005769A1 Claw pole motor
02/03/1999CN1207215A Low cost multi-pole motor constructions and methods of manufacture
01/1999
01/28/1999DE19728172A1 Elektrische Maschine mit weichmagnetischen Zähnen und Verfahren zu ihrer Herstellung Electrical machine with soft magnetic teeth and processes for their preparation
01/20/1999EP0892484A1 Electric motor
01/14/1999WO1999001924A1 Electrical machine with soft-magnetic teeth and a method for producing same
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