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)
11/1999
11/23/1999US5990598 Segment connections for multiple elevation transducers
11/23/1999US5990597 Ultrasonic motor having high drive efficiency
11/18/1999WO1999058854A1 Tubular ultrasonic transducer
11/18/1999CA2330372A1 Tubular ultrasonic transducer
11/17/1999CN1235405A Miniature monoblock precisive plane moving mechanism and device thereof
11/17/1999CN1235404A Linear ultrasonic motor and its driving oscillator
11/16/1999US5986386 Electrostrictive or piezoelectric actuator device
11/16/1999US5986385 Vibration driven motor or actuator
11/16/1999US5986383 Drive device and information recording and processing device
11/16/1999US5986360 Device and method for controlling at least one capacitive actuator
11/10/1999EP0954900A1 Piezo-pyroelectric energy converter and method
11/10/1999CN1234912A Method and device for controlling capacitative actuator
11/09/1999US5982075 Ultrasonic linear motor
11/09/1999US5982054 Magnetostrictive device
11/04/1999WO1999056327A1 Circuit for the dynamic control of ceramic solid-state actuators
11/04/1999DE19819351A1 High voltage-generating projectile
11/04/1999DE19818036A1 Production of electro-technical components with plastic-passivated surfaces
11/03/1999EP0954038A1 Method of producing functionally gradient piezoelectric transducers
11/03/1999EP0954037A1 Piezoelectric device for an actuator
11/03/1999EP0953215A1 Moving linear piezoelectric motor for vehicle applications
10/1999
10/28/1999DE19825210A1 Circuit for dynamically driving ceramic solid state actuators enables piezo actuator to be loaded approximately linearly over entire voltage range whilst optimising energy recovery for small circuit structural vol.
10/28/1999DE19818068A1 Piezoelektronischer Aktor für einen Stellantrieb Piezoelectric actuator for an actuator
10/27/1999EP0951741A1 Device and process for controlling at least one capacitative actuator
10/27/1999CN1233343A Micro-relay and method for manufacturing the same
10/27/1999CN1233218A Device for reducing contact force variations between a current collector and a catenary
10/26/1999US5973439 Vibration driven motor
10/21/1999WO1999045600A3 Piezoelectric transformer
10/21/1999DE19817038A1 Piezomotor Piezomotor
10/21/1999DE19814697C1 Piezoelectric actuator, especially multilayer ceramic piezo-actuator used as positioning device, ultrasonic emitter, valve controller or sensor
10/20/1999EP0951078A1 Piezomotor
10/19/1999US5969464 Drive device using electromechanical transducer and an apparatus employing the drive device
10/13/1999CN1045668C Standing wave type piezoelectric motor with position detector and stator making method
10/12/1999USRE36337 Ultrasonic motor
10/07/1999DE19814594A1 Charging and discharging piezoelectric element to desired voltage
10/06/1999EP0947690A2 Fluid control valve
10/06/1999EP0947004A1 Rotary piezoelectric motor for vehicle applications
10/06/1999EP0947002A1 Piezo-electric driving or adjusting element
10/06/1999EP0947001A1 Method and device for controlling at least one capacitive actuator
10/06/1999EP0947000A1 Method and device for controlling at least one capacitive actuator
10/06/1999EP0946999A1 Method and device for activating a capacitive actuator
10/06/1999EP0946998A1 Device and process for controlling of at least one capacitative actuator
09/1999
09/30/1999DE19813983A1 Ventil zum Steuern von Flüssigkeiten Valve for controlling fluids
09/29/1999EP0945732A2 A method for optimizing the drive of a piezoelectric actuator, in particular for phacoemulsifier devices, by dynamic detection of its electromechanical characteristics and device based thereupon
09/29/1999EP0944925A1 Process and device for driving a capacitive actuator
09/29/1999CN1230291A Piezo electric actuator with new type of containing and method for prodn. thereof
09/23/1999WO1999048083A1 Inertial/audio unit and construction
09/23/1999DE19742447C2 Wanderwellenmotor mit Temperaturmeßeinrichtung und Verfahren zur Temperaturmessung Travelling wave motor with temperature sensing means and method for temperature measurement
09/21/1999US5955820 Ultrasonic motor
09/21/1999US5955819 Standing-wave vibration motor
09/16/1999DE19810525A1 Capacitive actuator excitation method e.g. for four-cylinder internal combustion (IC) engine fuel injection valves
09/16/1999DE19810321A1 Current and charge regulation method for capacitive load e.g. piezoactuator operating in kHz range
09/15/1999CN1228876A Device and process for controlling at least one capacitative actuator
09/15/1999CN1228875A Device and process for controlling at least one capacitative actuator
09/15/1999CN1228874A Device and process for controlling of at least one capacitative actuator
09/14/1999US5952766 Optical apparatus
09/14/1999CA2088234C A vibration driven motor or actuator
09/10/1999WO1999045631A2 Actuators and apparatus
09/10/1999WO1999045600A2 Piezoelectric transformer
09/08/1999EP0940863A2 Ultrasonic motor and electronic apparatus having an ultrasonic motor
09/07/1999US5949178 Vibration wave driving apparatus and a vibration member, and manufacturing method of the apparatus and the member
09/07/1999US5949177 Linear piezoelectric motor employing internal feedback
09/02/1999WO1999044282A1 Device for controlling ultrasonic motor
09/02/1999WO1999044281A1 Method of driving ultrasonic motor
09/02/1999WO1999044280A1 Ultrasonic motor
09/02/1999WO1999044279A1 Ultrasonic motor
09/01/1999EP0938753A1 Piezoelectric actuator with an electrical connection
08/1999
08/31/1999US5945771 Vibration wave driven motor and a printing apparatus
08/31/1999US5945769 Wave driven motor
08/31/1999US5945768 Piezoelectric drive circuit
08/26/1999WO1999042842A1 Offset regulation device
08/26/1999DE19806752A1 Unit correcting drift in signal from e.g. acceleration and pressure sensors
08/26/1999DE19806127A1 Verfahren zur elektrischen Ansteuerung von piezoelektrischen oder elektrostriktiven Aktuatoren in Antrieben für eine schrittweise Bewegung A method for the electrical control of the piezoelectric or electrostrictive actuators for actuators in a stepwise movement
08/25/1999EP0938142A1 Power supply circuit for a piezoelectric travelling wave motor
08/24/1999US5942838 Rotary motor driven by a piezoelectric composite laminate
08/24/1999US5942837 Highly dynamic piezo-electric drive mechanism
08/19/1999WO1999041791A1 Method for electrical control of piezoelectric or electrostrictive actuators in drive mechanisms for step-by-step motion
08/19/1999WO1999041790A1 Method and device for determining the temperature of a piezo-electric element
08/18/1999CN1226128A Apparatus and method for producing high voltage for gas ionization
08/18/1999CN1226013A Driving apparatus of vibration type actuator
08/17/1999US5939851 For use with a motor
08/17/1999US5939847 Drive control device for ultrasonic motors
08/17/1999US5939816 Piezoelectric actuator
08/17/1999US5938075 Powder feeder and method for driving powder feeder
08/12/1999WO1999040408A1 Method for evaluating characteristic values of piezo-mechanical systems
08/12/1999DE19805184A1 Verfahren und Vorrichtung zum Ermitteln der Temperatur eines piezoelektrischen Elements Method and device for determining the temperature of a piezoelectric element
08/12/1999DE19804196A1 Verfahren zur Auswertung von Kennwerten piezo-mechanischer Systeme Method for evaluating characteristics piezo-mechanical systems
08/11/1999EP0934605A1 Method and device for controlling a capacitative actuator
08/11/1999CN1225296A Driving device for at least two rotation elements, which device comprises at least one piezoelectric driving element
08/10/1999US5936328 Linear vibration actuator utilizing combined bending and longitudinal vibration modes
08/10/1999US5936327 Electro-mechanical energy conversion device for vibration driven actuator and its manufacturing method
08/05/1999WO1999039429A1 Ultrasonic motor and method of manufacturing the motor
08/04/1999EP0932518A1 Device for reducing contact force variations between a current collector and a catenary
08/03/1999US5933002 Controlled bending actuator system
08/03/1999US5932952 Vibration motor having a two-phase drive of a longitudinal vibration and a bending vibration mode
07/1999
07/29/1999WO1999038220A1 Piezoelectric actuator
07/29/1999DE19802302A1 Piezoelectric actuator used e.g. for a fuel injection valve, a hydraulic valve, a micro-pump or an electrical relay
07/28/1999EP0932208A1 Piezoelectric motor
07/27/1999US5929552 Ultrasonic vibrator
07/22/1999WO1999030266A3 Remote energy supply process and system for an electronic information carrier
07/22/1999DE19900474A1 Piezo drive circuit for inkjet printer
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