Patents
Patents for H02N 2 - Electric machines in general using piezo-electric effect, electrostriction or magnetostriction (14,251)
06/1995
06/08/1995WO1995015610A1 Micromotor
06/08/1995DE4341073A1 Vibration motor for generating travelling waves
06/01/1995WO1995015026A1 Mechanism for transmitting movement
05/1995
05/24/1995EP0654889A1 Driving device for ultrasonic wave motor
05/24/1995CN1028585C Piezoelectric actuator
05/23/1995US5418650 Lens barrel using a surface wave motor
05/23/1995US5418417 Piezoelectric motor
05/18/1995WO1995013649A1 Magneto-mechanical converter
05/18/1995DE4440679A1 Ultrasonic motor
05/16/1995US5416375 Ultrasonic motor
05/16/1995US5416374 Ultrasonic motor and electronic apparatus equipped with ultrasonic motor
05/02/1995US5411241 Control valve for a faucet and use of ultrasonic motor
04/1995
04/26/1995EP0650252A1 Ultrasonic motor and electronic apparatus equipped with ultrasonic motor
04/25/1995US5410204 Ultrasonic oscillator
04/20/1995DE4436812A1 Drive device
04/19/1995EP0649216A1 A vibration driven device
04/19/1995EP0505386B1 Stepping motor to drive a body, especially a shaft, through small angles of rotation per step
04/18/1995US5408156 Ultrasonic motor
04/11/1995US5406160 Vibration driven motor
04/05/1995EP0646975A1 Tortional actuator and method of making the same
04/05/1995EP0646221A1 Magnetostrictive transducer.
04/04/1995US5404065 Ultrasonic actuator
03/1995
03/30/1995DE4332927A1 Piezoelectric switching element
03/28/1995US5402030 Vibration wave driven apparatus
03/16/1995DE4403180C1 Device for converting pressure fluctuations prevailing in fluid systems into electrical energy (power)
03/15/1995EP0643427A1 Electric motor with vibrating elements and elastic coupler
03/14/1995US5397955 Ultrasonic actuator
03/08/1995EP0642180A2 Actuator for a movable member
03/08/1995EP0642065A1 Rotor position detector for piezo-electric motor
03/07/1995US5396142 Positioning apparatus
03/01/1995EP0407460B1 An integrated mass storage device
02/1995
02/23/1995WO1995005682A1 Piezoelectric motor with progressive wave
02/15/1995CN1027667C Piezoelectric actuator
02/09/1995WO1995004378A1 Direct drive field actuator motors
02/09/1995DE4410153C1 Piezoelectrically operated fluid valve
02/08/1995EP0566626B1 Method and device in a motor
02/07/1995US5387835 Vibration driven motor
02/07/1995US5387834 Piezoelectric element driving circuit
02/01/1995EP0637123A1 Surface acoustic wave motor
01/1995
01/25/1995EP0635930A1 Ultrasonic motor and ultrasonic wave carrier
01/17/1995US5382864 Piezoelectric bimorph type actuator
01/17/1995US5382863 Method and device in a motor
01/11/1995EP0633616A2 Ceramic motor
01/05/1995WO1995000976A1 Force and/or motion generating arrangement
01/03/1995US5378948 Electroactive motor
12/1994
12/28/1994EP0631334A1 Ultrasonic motor having high drive efficiency
12/27/1994US5376858 Ultrasonic motor
12/27/1994US5376855 Driving device for ultrasonic wave motor
12/22/1994WO1994029946A1 Improvements relating to rotary drive mechanisms
12/07/1994EP0627774A2 Ultrasonic motor having high drive efficiency
11/1994
11/23/1994CN1026744C 压电马达 Piezoelectric motor
11/17/1994EP0624912A1 Displacement device with piezoelectric actuator
11/17/1994EP0624911A1 Vibration wave motor
11/15/1994US5365140 Piezoelectric actuator having strain gage
11/15/1994US5365139 Electronic apparatus with ultrasonic motor
11/09/1994CN2182490Y Driving power supply
11/08/1994US5363006 Stator for ultrasonic motor and method for manufacturing the same
11/01/1994US5361014 Apparatus for driving a piezoelectric actuator
11/01/1994US5361013 Device comprising a piezoelectric transducer
10/1994
10/27/1994WO1994023935A1 Tool horn for converting longitudinal vibrations to torsional vibrations
10/25/1994US5359268 Control apparatus for vibration driven motor
10/25/1994US5359251 Vibration driven actuator
10/19/1994CN1026278C 压电致动器 The piezoelectric actuator
10/18/1994US5357164 Ultrasonic motor
10/12/1994CN1026201C Piezoelectric-current linear stepping motor
10/12/1994CN1026200C Piezoelectric-current rotary stepping motor
10/11/1994US5355047 Circuit for driving an oscillatory-wave motor
10/05/1994EP0547083B1 Generator
10/04/1994US5352950 Vibration wave driven motor
10/04/1994US5352949 Vibration driven actuator
09/1994
09/28/1994EP0617415A2 Apparatus for recording/reproducing information in a card
09/27/1994US5350962 Driving device for piezoelectric element
09/20/1994US5348287 Sheet feeding apparatus using a vibration wave to convey sheets
09/14/1994EP0462235B1 Multi-surface-sensor control unit for a travelling-wave motor
09/13/1994US5347192 Vibration wave motor
09/13/1994US5345767 Vibration motor
09/07/1994EP0613586A1 Piezorotary motor
09/07/1994EP0404799B1 Integrated scanning tunneling microscope
09/06/1994US5345137 Two-dimensionally driving ultrasonic motor
08/1994
08/31/1994EP0613195A1 Vibration motor
08/31/1994EP0613194A1 Drive for a vibration motor with cylindrical vibrating member
08/31/1994EP0397799B1 A piezoelectric motion transducer and an integrated scanning tunneling microscope using the same
08/30/1994US5343108 Ultrasonic step motor
08/24/1994EP0612115A1 Ultrasonic motor
08/24/1994EP0611485A1 Electromechanical positioning device.
08/23/1994US5341062 Piezoelectric energy generator
08/23/1994US5341056 Magnetostrictive motor system
08/18/1994WO1994018750A1 Ultrasonic motor and ultrasonic wave carrier
08/18/1994DE4403627A1 Ultrasonic motor having an improved stator
08/17/1994EP0610836A2 Ultrasonic motor and ultrasonic motor control method
08/17/1994EP0610223A1 Process and device for regulating the frequency of a travelling wave motor.
08/16/1994US5338998 Vibration driven actuator
08/10/1994EP0610139A1 Method of making a distribution circuit for electrical signals, distribution circuit so obtained, and a piezoelectric motor containing such a circuit
08/09/1994US5336958 Ultrasonic motor unit
07/1994
07/27/1994EP0607980A1 A vibration wave driven motor and a printing apparatus
07/26/1994US5332941 Ultrasonic driving motor
07/12/1994US5329201 Vibration driven motor
07/12/1994CA2005028C Microdrive apparatus
07/05/1994US5327040 Ultrasonic motor with a vibrating body and a moving body driven thereby
06/1994
06/29/1994EP0603835A1 Piezoelectric actuator having strain gage