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)
04/1990
04/18/1990CN1041482A 压电致动器 The piezoelectric actuator
04/17/1990US4918351 Vibration wave motor
04/17/1990US4918350 Energy-trapping-by-frequency lowering-type piezoelectric resonance device
04/17/1990US4917810 Piezoelectric composite material
04/17/1990US4917579 Transporter pump
04/17/1990US4917484 High-performance dynamic mount for laser-beam steering mirror and actuating motor therefor
04/12/1990DE3833158A1 Bistable bending (flexural) transducer
04/12/1990DE3833157A1 Monostable piezoelectric position encoder (displacement sensor)
04/11/1990EP0362613A2 Electromechanical translation apparatus
04/11/1990EP0362416A1 Shear motor for dynamic mount for laser-beam steering mirror
04/11/1990EP0362404A1 Method of producing laminated ceramic electronic parts
04/11/1990EP0362291A1 Piezoelectric ink printing head and process for its production.
04/11/1990EP0362213A1 Process for manufacturing a structured ceramic film or a ceramic object composed of such films.
04/10/1990US4916350 Sensor for detecting vibrations in a plane, particularly in a stringed musical instrument
04/10/1990US4916349 Latching piezoelectric relay
04/10/1990US4915492 Mirror transducer assembly with selected thermal compensation
04/05/1990WO1990003665A2 Integrated micromechanical piezoelectric motor
04/05/1990WO1990003224A1 Nebulizer device
04/05/1990DE3833493A1 Method for producing a piezoelectric lead
04/05/1990DE3833342A1 Piezoelectric motor
04/05/1990DE3833109A1 Piezoelectric control element
04/04/1990EP0361969A2 Super-magnetostrictive alloy
04/04/1990EP0360975A2 Piezoelectric actuator
04/03/1990US4914722 Shock absorber for ceramic filters
04/03/1990US4914565 Oxidation polymerization of sulfur or nitrogen heterocyclic compounds
04/03/1990US4914412 Magnetic circuit
04/03/1990US4914338 Irradiated aluminite protective coating
04/03/1990US4914337 Power supply frequency regulating device for vibration wave driven motor
04/03/1990US4914336 Wave motor driving circuit
04/03/1990US4912822 Method of making an integrated scanning tunneling microscope
03/1990
03/28/1990EP0360199A2 Vibration wave driven actuator
03/28/1990EP0359875A1 Ultrasonic driving devices
03/27/1990US4912355 Superlattice strain gage
03/27/1990US4912351 Piezoelectric motor
03/27/1990US4911016 Semiconductor strain gauge bridge circuit
03/27/1990CA1267216A1 Piezoelectric device
03/22/1990WO1990003044A1 Protected piezoelectric polymer bimorph
03/15/1990DE3831299A1 Arrangement for selective depolarisation of defined regions of polarised piezoceramic materials
03/14/1990EP0358534A2 Magnetostrictive clamp
03/14/1990EP0358390A2 Piezoelectric transducer
03/14/1990EP0358040A2 Conductive surface layer
03/07/1990EP0356839A1 Piezoelectric ceramic material
03/07/1990EP0356591A1 Ultrasonic driving devices
03/06/1990US4907123 Electromechanical transducer type relay
03/06/1990US4906885 Electrode material for surface acoustic wave devices and surface acoustic wave device using the same
03/06/1990US4906879 Terbium-dysprosium magnetostrictive high power transducers
03/06/1990US4906840 Integrated scanning tunneling microscope
02/1990
02/21/1990CN1006941B Low-temp. sintered leady piezoelectric ceramic and its manufacture technology
02/20/1990US4903166 Electrostrictive actuators
02/20/1990US4902926 Piezoelectric measuring element
02/20/1990CA1266119A1 Coaxial cable
02/13/1990US4901293 Rare earth flextensional transducer
02/13/1990US4900972 Electrode for piezoelectric composites
02/07/1990EP0354117A1 Piezoelectric transducer for volume wave generation
02/07/1990EP0298076B1 Electrically controllable fuel injection valve
02/07/1990CN1039517A Piezoelectric sensor comprising at least one pair of flexible sensitive elements of great length
02/07/1990CN1039505A Amplifying piezo-electric element displacement apparatus and manufacturing method of same
02/06/1990US4898641 Controlled deviation of value of double refraction
01/1990
01/31/1990EP0352858A2 Piezo-electric linear motor
01/31/1990CN1039331A Ferroelectric ceramic material
01/31/1990CN1039330A Ferroelectric ceramic material
01/30/1990US4896544 Magnetoelastic torque transducer
01/25/1990DE3824140A1 Fixing and electrical bonding of piezoceramics
01/25/1990DE3824139A1 Electrodes for piezoceramics
01/23/1990US4896068 Activity sensor for a heart pacemaker
01/23/1990US4895812 Method of making ohmic contact to ferroelectric semiconductors
01/18/1990DE3822891A1 Piezo- and pyroelectric transducers
01/17/1990EP0351285A1 Piezo electric detector with at least two long, sensitive, supple elements
01/17/1990EP0351015A2 A method for fabricating a piezoelectric composite transducer
01/17/1990EP0350941A2 Stack-type piezoelectric element and process for producing the same
01/17/1990EP0350484A1 Method and device in magnetostrictive motion systems.
01/16/1990US4894579 Apparatus for effecting fine movement by impact force produced by piezoelectric or electrostrictive element
01/16/1990US4894578 Ultrasonic driving device
01/16/1990US4894538 Scanning device for scanning tunneling microscope
01/16/1990US4894537 High stability bimorph scanning tunneling microscope
01/10/1990EP0350258A2 Dot matrix printing heads
01/10/1990EP0349911A2 Micromanipulator
01/09/1990US4893049 Lithium niobate explosion monitor
01/09/1990US4893047 Ultrasonic driving device
01/09/1990US4893046 Ultrasonic driving device
01/09/1990US4893045 Ultrasonic driving device
01/09/1990US4891992 Torque detecting apparatus
01/09/1990CA1264371A1 Flexible piezoelectric transducer assembly
01/04/1990DE3920726A1 Ultrasonic oscillator
01/02/1990US4890370 Manufacturing method for integrated resonator
01/02/1990US4890369 Method of manufacturing saw devices
12/1989
12/27/1989EP0347846A2 Actuator
12/27/1989CA1264074A1 Cable connection
12/26/1989US4890027 Dynamic motor controller
12/26/1989US4889275 Method for effecting solder interconnects
12/26/1989US4888878 Fine positioning device
12/20/1989CN1038133A Process and device for reducing water content in piezoelectric gapo4-crystal unit, and crystal unit thereby
12/19/1989US4888515 Rotary power unit
12/19/1989US4888514 Driving apparatus for ultrasonic motor
12/19/1989US4888202 Method of manufacturing thin compound oxide film and apparatus for manufacturing thin oxide film
12/19/1989US4887569 Electrostrictive actuator device and fuel injection device using same
12/13/1989EP0345920A2 Piezoelectric torque motor
12/13/1989CN1037888A Sol-gel methd of making ceramics
12/12/1989US4887186 Perouskite oxide, internal electrodes
12/12/1989US4887100 Droplet deposition apparatus