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)
12/1990
12/12/1990EP0401607A1 Method for manufacturing a microvalve and microvalve
12/11/1990US4977547 Solid solution of lead titanate, bismuth ferrite
12/11/1990US4977329 Arrangement for shielding electronic components and providing power thereto
12/11/1990US4976553 Very small displacement enlargement mechanism and printing head using the same
12/11/1990US4976245 Unit injector
12/05/1990EP0400163A1 Electric drum
12/04/1990US4975892 Piezoelectric transducer to generate bulk waves
12/04/1990US4975643 Measurement and control of magnetostrictive transducer motion using strain sensors
12/04/1990US4975616 Piezoelectric transducer array
12/04/1990US4975615 Piezoelectric transducer
12/04/1990US4975614 Ultrasonic driving device
12/04/1990CA1277414C Broadband longitudinal vibrator transducer
12/04/1990CA1277413C Saw device with continous finger pattern
11/1990
11/29/1990DE3844659A1 Micromanipulator
11/28/1990CN1047419A Technology for producing electrode of piezoelectric ceramic device
11/27/1990US4973876 Ultrasonic power supply
11/22/1990EP0398862A2 Signal converter
11/22/1990EP0397799A1 A piezoelectric motion transducer and an integrated scanning tunneling microscope using the same.
11/22/1990DE3916539A1 Movement and pressure transmission unit - with substitution of elastomer for gas liquid
11/21/1990CN1010533B Rapid determination method of crystallographic-axis polarities of monocrystalline lithium tantalate
11/20/1990US4971106 Automatically operating valve for regulating water flow and faucet provided with said valve
11/20/1990CA1276684C Personal safety radio device
11/14/1990EP0397161A2 Methods for device transplantation
11/14/1990EP0396703A1 A method for the production of thin film perovskite phase lead scandium tantalate
11/13/1990US4969726 Ring laser gyro path-length-control mechanism
11/06/1990US4968914 High resolution electromechanical translation device
11/06/1990US4967794 Automatically operating valve for regulating water flow and faucet provided with said valve
11/04/1990WO1990013367A1 PVdF/TrFE PIEZOELECTRIC TRANSDUCER
11/04/1990CA2034500A1 Pvdf/trfe piezoelectric transducer
11/01/1990WO1990013149A1 SOL GEL PROCESS FOR PREPARING Pb(Zr,Ti)O3 THIN FILMS
10/1990
10/31/1990EP0395298A2 Standing-wave type ultrasonic motor
10/31/1990EP0395018A2 Stack-type piezoelectric element and process for production thereof
10/31/1990EP0394582A2 Magnetostrictive actuator using adaptive control.
10/31/1990CN1046638A Stacked type ceramic device and process of their manufacture
10/30/1990US4967166 Crystal oscillator and method for mounting the same
10/30/1990US4966119 Fuel injection control device for use in an engine
10/23/1990US4965482 Ultrasonic motor and method of adjusting the same
10/23/1990US4965481 Drive circuit for vibratory-wave motor
10/22/1990WO1990012755A1 Preparation of thin film ceramics by sol gel processing
10/22/1990CA2065381A1 Preparation of thin film ceramics by sol gel processing
10/18/1990WO1990012420A1 Dielectric substrate with reduced and stabilized surface electrical conductivity, process for its manufacture, and use of the substrate
10/16/1990USRE33390 Motor device utilizing ultrasonic oscillation
10/16/1990US4964145 System for magnification correction of conductive X-ray lithography mask substrates
10/16/1990US4963954 Arrangement for reducing piezoelectric effects in an electrical component
10/16/1990US4963782 Multifrequency composite ultrasonic transducer system
10/16/1990US4963781 Ultrasonic motor
10/10/1990EP0391880A2 Measurement and control of magnetostrictive transducer motion
10/10/1990EP0391419A2 Laminated ceramic device and method of manufacturing the same
10/10/1990CN1046038A Unitary push-pull force transducer
10/10/1990CN1009971B Position detecting device
10/09/1990US4961347 Probe for ultrasonic flaw detectors
10/09/1990US4961252 Means and method for nonuniform poling of piezoelectric transducers
10/07/1990CA2013903A1 Laminated ceramic device and method of manufacturing the same
10/05/1990CA2013811A1 Measurement and control of magnetostrictive transducer motion
10/04/1990WO1990011622A1 High resolution electromechanical translation device
10/03/1990CN1045762A Process for producing sub-micron ceramic powders of perovskite compounds with controlled stoichiometry and particle size
10/02/1990US4960319 Active polarization control servo and method
09/1990
09/26/1990EP0388903A2 Magnetostrictive transducer for torque measurements and their dynamic changes
09/26/1990EP0277224A4 Piezoelectric switch
09/25/1990US4959581 Servo valve having a piezoelectric element as a control motor
09/25/1990US4959580 Piezoelectric motor
09/25/1990US4959579 Ultrasonic motor
09/25/1990US4959567 Magnetodistortive actuator with adjustable magnetic bias
09/25/1990US4959439 Reaction with epoxy resin, crosslinking with pyridine or imidazole compound, microcrystals
09/24/1990CA2013034A1 High resolution electromechanical translation device
09/20/1990WO1990010953A1 Quartz resonator with mounting pedestals
09/20/1990WO1990010609A1 Process for chemical metallization of ceramic bodies
09/19/1990EP0388027A2 Displacement generating apparatus
09/19/1990CN2062441U Pouring shaping piezoelectric high polymer hydrophone vibrator
09/19/1990CN1045495A Quartz resonator with mounting pedestals
09/18/1990US4958101 Piezoelectric actuator
09/18/1990US4958100 Actuated truss system
09/13/1990DE3907902A1 Verfahren zum chemischen metallisieren von keramikkoerpern A method for chemical metalizing of keramikkoerpern
09/11/1990US4955598 Paper feeding apparatus
09/11/1990US4955535 Automatically operating valve for regulating water flow and faucet provided with said valve
09/07/1990WO1990010313A1 Vibration-isolated mount for gt-cut crystals
09/07/1990WO1990010207A1 Unitary push-pull force transducer
09/07/1990WO1990003665A3 Integrated micromechanical piezoelectric motor
09/05/1990EP0385409A2 Sheet feeding device
09/05/1990CN1045178A Magnetostrictive torque transducer
09/04/1990US4954742 Vibratory-wave motor device
09/04/1990US4954741 Control circuit for a vibration wave motor
09/04/1990US4953413 Driving device having a vibrator
09/04/1990CA1273702A1 Surface acoustic wave devices
09/04/1990CA1273672A1 Self-biased modular magnetostrictive driver and transducer
08/1990
08/30/1990DE3905889A1 Device for generating the energy pulses required for operating a light-emitting component
08/29/1990EP0384727A2 alpha-Olefin polymerisation catalysts comprising perovskite type complex compounds and composite material produced using the same
08/29/1990EP0384455A1 Piezo-ceramic element
08/29/1990EP0384042A2 Magneto-strictive torque sensor
08/28/1990US4952836 Piezoelectrostatic generator
08/28/1990US4952835 Double saggital push stroke amplifier
08/28/1990US4952834 Circuitry for driving ultrasonic motor
08/28/1990CA1273275A1 Preferential etching of a piezoelectric material
08/27/1990CA2010962A1 Unitary push-pull force transducer
08/22/1990EP0383309A2 Vibration wave motor
08/22/1990EP0157764B1 Power generation from waves on the surface of bodies of water
08/21/1990US4950937 Method of making a resonator from a boule of lithium tetraborate and resonator so made
08/21/1990US4950135 Piezoelectric powered scroll compressor
08/16/1990EP0382563A2 Ultrasonic motor having high drive effeciency
08/16/1990EP0382253A2 Sheet Feeder