Patents
Patents for H01L 41 - Piezo-electric devices in general; Electrostrictive devices in general; Magnetostrictive devices in general; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof (34,459)
05/2000
05/04/2000WO2000025369A1 Method and apparatus for driving piezoelectric motors
05/04/2000WO2000025368A1 Driver for piezoelectric motors
05/04/2000WO2000025020A1 Device and constant control of piezoelectric actuators for fuel injection systems
05/04/2000WO2000025019A1 Fuel injection valve
05/04/2000DE19952062A1 Noise energy converter has flat piezoelectric material subjected to gas pressure and deformed in microscopic regions to form surface voltages picked up by microscopic electrodes
05/04/2000DE19950355A1 Sensor for use in accelerometer has arrangement of piezo-electric element and associated electrodes to produce change in capacitance that can be used to measure low frequency changes in acceleration
05/04/2000DE19850610A1 Verfahren zur Herstellung piezoelektrischer Aktoren Process for the preparation of piezoelectric actuators
05/03/2000EP0997953A1 An actuator for producing motion and force by controlling the twin structure orientation of an actuator material
05/03/2000EP0996759A1 Amorphous magnetostrictive alloy with low cobalt content and method for annealing same
05/03/2000EP0829001B1 Circularly magnetized non-contact torque and power sensor and method for measuring torque and power using same
05/02/2000US6057766 Iron-rich magnetostrictive element having optimized bias-field-dependent resonant frequency characteristic
05/02/2000US6057633 Piezoelectric transformer unit
05/02/2000US6057628 Piezoelectric sensors/actuators for use in refractory environments
05/02/2000US6056994 Liquid deposition methods of fabricating layered superlattice materials
04/2000
04/27/2000WO2000024065A1 Device for positioning an object
04/27/2000WO2000023204A1 Device for accurate position control of a force-transmitting system
04/27/2000DE19849203A1 Fuel injection valve for I.C engines with expansion compensated piezoelectric actuators
04/27/2000DE19848950A1 Appliance for uniform control of piezoelectric actuators for fuel injection systems with compensation for operating conditions
04/26/2000EP0996175A2 Piezoelectric/electrostrictive device
04/26/2000EP0995899A2 Piezoelectric actuator and fuel-injection apparatus using the actuator
04/26/2000EP0783670B1 Electromechanical transducer
04/26/2000CN1251471A Piezoelectric element and producing method thereof
04/25/2000USRE36667 Droplet deposition apparatus
04/25/2000US6054798 Piezoelectric transformer with an improved armor case
04/25/2000US6054796 Positive feedback resonant transducer circuit
04/25/2000US6054795 Driving apparatus for vibration type actuator device
04/25/2000US6054793 Piezoelectric resonator method for adjusting frequency of piezoelectric resonator and communication apparatus including piezoelectric resonator
04/25/2000US6054226 Magnetoresistive element has layer of electroconductive, crystalline magnetostrictive material, dielectric layer of given oxides, and layer of oxide magnetoresistive material; detector having high sensitivity and quick response
04/25/2000US6053287 Linear drive for transportation equipment
04/25/2000US6052879 Method for embedding piezoelectric transducers in thermoplastic composites
04/20/2000DE19847995A1 Object positioning arrangement by causing hammer-like knocks of piezo-electric element against plot surface of plot block, whereby piezo-electric element and/or plot block are fastened to object
04/20/2000DE19845042A1 Verfahren und Anordnung zur Diagnose eines kapazitiven Aktors Method and apparatus for diagnosing a capacitive actuator
04/19/2000EP0994516A2 Mechanical amplifier
04/19/2000EP0993953A2 Method for manufacturing ferroelectric thin film device, ink jet recording head, and ink jet printer
04/19/2000CN1251211A Piezoelectric actuator
04/18/2000US6052300 DC-AC converter circuit using resonating multi-layer piezoelectric transformer
04/18/2000US6051915 Piezoelectric transformer
04/18/2000US6051914 Piezoelectric device, actuator using the same, and ink-jet recording head
04/18/2000US6051912 Vibration actuator
04/18/2000US6051911 Vibration wave actuator
04/18/2000US6051909 Drive device using electromechanical transducer
04/18/2000US6051907 Method for performing on-wafer tuning of thin film bulk acoustic wave resonators (FBARS)
04/18/2000US6051157 Piezoelectric ceramic composition
04/13/2000WO2000021146A1 Device for generating electric power
04/13/2000WO2000021145A1 Piezoelectric drive device
04/13/2000WO2000021045A2 Iron-rich magnetostrictive element having optimized bias-field-dependent resonant frequency characteristic
04/13/2000WO2000020896A1 Piezoelectric converter
04/13/2000DE19845037A1 Capacitance-based control system for piezoelectric actuator, operating IC engine fuel injector, comprises capacitor forming oscillatory circuit with series inductance to energize actuator
04/12/2000EP0993055A2 Piezoelectric actuator and electronic apparatus with piezoelectric actuator
04/12/2000EP0992777A1 Magnetostriction detecting type sensor
04/12/2000EP0992776A1 Magnetostriction detection type sensor
04/12/2000CN1250246A Vibrating exciting bank
04/12/2000CN1250158A 压电式压力传感器 Piezoelectric pressure sensors
04/11/2000US6049160 Radial ceramic piezoelectric composites
04/11/2000US6049158 Piezoelectric/electrostrictive film element having convex diaphragm portions and method of producing the same
04/11/2000US6049156 Apparatus provided with a vibration type motor
04/11/2000US6048622 Elongated piezoelectric ceramic fibers embedded in softpolymer matrix and an electrode on the fiber array to impose electrical field; in aircraft wings to detect and compensatefor bending and vibration
04/11/2000US6048307 Endoscope with a movable frontal end area
04/11/2000US6047590 Sensor device with fluid introduction holes
04/06/2000WO2000019549A1 Method and arrangement for diagnosing a capacitive actuator
04/06/2000WO2000019184A1 System and method for monitoring pressure, flow and constriction parameters of plumbing and blood vessels
04/06/2000WO1999035670A3 Improved piezoelectric ceramic-polymer composites
04/06/2000DE19940124A1 Platform with displacement amplification mechanism for scanning-microscope has two parallel arms attached via elastic connecting sections to base
04/06/2000DE19845134A1 Piezoelektrische Antriebsvorrichtung Piezoelectric drive unit
04/06/2000DE19844518A1 Hydraulic flow amplifier for microsystems with drive diaphragm bending under energy supply
04/06/2000DE19843621A1 Entladeschaltung für ein kapazitives Stellglied Discharge for a capacitive actuator
04/05/2000EP0991185A2 Surface elastic wave device having bumps in a definite area on the device and method for manufacturing the same
04/05/2000EP0991176A1 Ultrasonic motor and method of manufacturing the motor
04/05/2000EP0991130A1 Piezoelectric device, ink-jet recording head, method fo manufacture, and printer
04/05/2000EP0990271A1 Loudspeaker assembly
04/04/2000US6047135 Driving mechanism for keeping feedback cycle constant, apparatus with the mechanism, and its control method
04/04/2000US6046613 Capacitive-load driving circuit and recording head driving circuit
04/04/2000US6046528 Selectively actuatable piezoelectric ignition mechanism
04/04/2000US6046527 Ultrasonic positioner with multiple degrees of freedom of movement
04/04/2000US6046526 Production method of laminated piezoelectric device and polarization method thereof and vibration wave driven motor
04/04/2000US6046525 Piezo-electric actuator control method and device and variable wavelength filter using the piezo-electric actuator device
04/04/2000US6046524 Elastic surface wave functional device and electronic circuit using the element
04/04/2000US6045642 Method for producing ceramic diaphragm structure
04/04/2000US6045626 Substrate structures for electronic devices
04/04/2000US6044708 Oscillation type gyroscope
04/04/2000US6044533 Method of making an acoustic probe
04/04/2000CA2161412C Low voltage bender piezo-actuators
03/2000
03/30/2000WO2000017944A1 Method for compensating acoustic waves and device for carrying out said method
03/30/2000WO2000017943A1 Discharging circuit for a capacitive actuator
03/30/2000WO2000017509A1 Fuel injection valve
03/30/2000WO2000017507A1 Fuel injection valve
03/30/2000DE19941872A1 Electronic components e.g. surface acoustic wave device, has bump electrode to which pressure is applied for contacting with input-output electrode of surface acoustic wave element
03/30/2000DE19843570A1 Brennstoffeinspritzventil Fuel injection valve
03/30/2000DE19843535A1 Brennstoffeinspritzventil Fuel injection valve
03/30/2000DE19841002C1 Verfahren zur Diagnose eines Kurzschlusses an einem kapazitiven Stellglied A method for diagnosing a short-circuit of a capacitive actuator
03/29/2000EP0988972A2 Layer-built ink jet recording head
03/29/2000CN1249068A Pulse-position-modulation driving for piezoelectric transformers
03/29/2000CN1248558A Piezoelectric ceramics-piezoelectric polymer compound material and making method
03/28/2000US6043588 Piezoelectric sensor and acceleration sensor
03/28/2000US6043587 Piezoelectric actuator
03/28/2000US6043586 Vibration actuator
03/28/2000US6042587 Foldable lens delivery system
03/23/2000DE19928140A1 Compensating sound waves with electroactive drive, using actuators arranged vibrating in housing forming at least one drive element with at least two actuator pairs together with clamping actuators and hub actuator
03/23/2000DE19909452C1 Multilayered laminate piezoelectric actuator for activating control valves or injection valves in motor vehicles consists of layers of piezoelectric material and metallic, conductive layers in between serving as electrodes.
03/22/2000EP0987773A2 Piezoelectric vibrator unit, manufacturing method thereof,and ink jet recording head incorporating the same