Patents
Sitemap › H02 - Generation, conversion, or distribution of electric power › H02N - Electric machines not otherwise provided for › H02N 2 - Electric machines in general using piezo-electric effect, electrostriction or magnetostriction
Patents for H02N 2 - Electric machines in general using piezo-electric effect, electrostriction or magnetostriction (14,251)
12/1991
12/20/1991CA2019394A1 Method and device in a motor
12/18/1991CN1057134A 电气牵引电动机 Electric traction motor
12/17/1991US5073740 Laminate-type displacement element
12/11/1991EP0460660A2 A device for driving a piezoelectric element
12/11/1991EP0460387A2 Electric traction motor
12/05/1991CA2040882A1 Electric traction motor
11/1991
11/27/1991EP0458638A1 Vibration wave driven motor
11/26/1991US5068566 Electric traction motor
11/26/1991US5068565 Motor conversion mechanism utilizing elastic action
11/19/1991US5066884 Ultrasonic motor having high drive efficiency
11/19/1991US5065999 Sheet feeding device utilizing vibration waves
11/19/1991CA1292267C Ultrasonic driving device
11/12/1991US5065067 Piezoelectric circuit
11/09/1991WO1991017351A1 An apparatus for driving a piezoelectric actuator
11/09/1991CA2063382A1 Apparatus for driving a piezoelectric actuator
11/06/1991EP0455342A1 Piezoelectric/electrostrictive actuator having at least one piezoelectric/electrostrictive film
10/1991
10/30/1991EP0453826A1 Robotic articulation
10/30/1991EP0453464A1 Control valve for a faucet and use of ultrasonic motor.
10/29/1991US5061882 Power supply frequency regulating device for vibration wave driven motor
10/28/1991CA2039546A1 Robotic articulation
10/24/1991CA2039547A1 Piezoelectric rotary union system
10/23/1991EP0452731A1 Piezoelectric rotary union system
10/15/1991US5056201 Method of making a travelling-wave motor
10/09/1991EP0450962A2 Vibration wave driven motor
10/09/1991EP0450919A1 Vibration wave driven motor
10/09/1991CN1055264A 压电马达 Piezoelectric motor
10/08/1991US5055760 Linear actuator drive control apparatus
10/08/1991US5055750 Air damper operating system of vehicle air conditioners
10/08/1991US5055732 Ultrasonic motor
10/02/1991EP0449048A1 Piezoelectric motor
10/01/1991US5053798 Automatic focusing device
10/01/1991US5053672 Energy converter apparatus
10/01/1991US5053670 Precision actuator
10/01/1991US5053669 Ultrasonic motor
10/01/1991CA1290000C Ultrasonic driving device
10/01/1991CA1289999C Ultrasonic driving device
09/1991
09/25/1991CN1054863A Direct current traveling wave motor
09/24/1991US5051647 Ultrasonic motor
09/24/1991CA2038465A1 Piezoelectric motor
09/18/1991EP0447172A1 Ultrasonic motor
09/18/1991EP0446591A2 Direct current traveling wave motor
09/17/1991US5049775 Integrated micromechanical piezoelectric motor
09/17/1991US5049774 Vibratory motor
09/14/1991CA2035562A1 Direct current traveling wave motor
08/1991
08/21/1991EP0442469A1 Driving device for ultrasonic wave motor
08/20/1991US5041750 Vibration wave driven apparatus
08/20/1991US5041132 Blood pump
08/14/1991EP0441540A1 Vibration wave driven motor
08/14/1991DE4002254A1 Ultraschallmotor mit zwei rotoren Ultrasonic motor with two rotors
08/07/1991EP0440491A1 Vibration wave driven motor
07/1991
07/30/1991US5036263 Piezoelectric actuator driving apparatus
07/30/1991US5036245 Ultrasonic linear motor
07/27/1991WO1991011850A1 Ultrasonic motor with two rotors
07/27/1991CA2049990A1 Ultrasound motor having two rotors
07/23/1991US5034647 Inchworm type driving mechanism
07/23/1991US5034646 Composite resin with filler
07/17/1991EP0437319A1 Vibration wave driven motor apparatus
07/17/1991EP0437050A1 Vibration wave driven apparatus
07/16/1991US5032754 Piezoelectric transducer for an ultrasonic motor
07/16/1991US5032753 Piezoelectric transducer and an ultrasonic motor using the piezoelectric transducer
07/10/1991EP0436336A2 Vibration wave driven apparatus
07/03/1991EP0435496A1 A vibration driven motor and thermal jet type printer using the same
07/02/1991US5028833 Ultrasonic motor
07/02/1991US5028832 Ultrasonic motor having anisotropic properties
06/1991
06/27/1991WO1991009428A1 Stepping motor to drive a body, especially a shaft, through small angles of rotation per step
06/25/1991US5027028 Piezoelectric motor
06/25/1991US5025766 Fuel injection valve and fuel supply system equipped therewith for internal combustion engines
06/20/1991DE4038020A1 Stepper motor turning shaft through small angle - by intermittent drive from flexible connection part carrying piezoelectric element and overcoming spring elements
06/19/1991EP0432971A1 Ultra-sonic motor driving circuit
06/18/1991US5025186 Ultrasonic motor
06/11/1991US5023526 Vibratory motor
06/04/1991US5021700 Driving apparatus for ultrasonic motor
05/1991
05/30/1991WO1991008594A1 Multi-surface-sensor control unit for a travelling-wave motor
05/30/1991CA2045459A1 Multiple-surface sensor control for a traveling wave motor
05/21/1991US5017823 Vibration wave driven actuator
05/21/1991US5017820 Piezoelectric rotary union system
05/21/1991US5017266 Piezoelectric transducer
05/08/1991EP0426042A1 Driving device for ultrasonic motor
05/07/1991US5014321 Wide passband omnidirectional loudspeaker
05/07/1991US5013982 Circuit for driving ultrasonic motor
05/07/1991US5013958 X-Y stage with ultrasonic actuator
05/07/1991US5013956 Wear resistance
05/01/1991CN1012544B Annular triple-lamina piezoelectric supersonic vibrator and its clamping supersonic micromotion motor
04/1991
04/24/1991EP0424141A2 Drive control circuit for an ultra-sonic stepping motor
04/24/1991EP0424139A2 Ultrasonic motor
04/23/1991US5010222 Driving device for ultrasonic wave motor
04/16/1991US5008581 Piezoelectric revolving resonator and single-phase ultrasonic motor
04/16/1991US5008580 Piezoelectric vibration generator and vibratory parts feeder incorporating the same
04/09/1991US5006746 Travelling-wave motor
04/04/1991WO1991004584A1 Miniature actuator
04/03/1991EP0420622A2 Frictional material for vibration motor
04/02/1991US5004964 Control apparatus for vibration driven motor
04/02/1991US5004945 Piezoelectric type actuator
03/1991
03/19/1991US5001404 Vibration wave motor
03/19/1991US5001382 Stepping motor and a method of driving the same
03/13/1991EP0416884A2 Vibration wave driven motor
03/06/1991EP0415657A2 Vibrator-type actuator
03/05/1991US4998048 Driving device for vibration wave driven motor
03/05/1991US4998016 Probe unit, driving method thereof, and scanning device for detecting tunnel current having said probe unit
02/1991
02/20/1991EP0413397A1 Electro-mechanical transducer and positioning device comprising such an electro-mechanical transducer
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