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)
03/1992
03/18/1992EP0475752A2 Vibration-driven motor
03/18/1992EP0475564A1 Fine scanning mechanism for atomic force microscope
03/17/1992US5097171 Piezo-actuator shock absorber damping force controlling system having abnormality detection function
03/17/1992US5097161 Linear actuator
03/17/1992US5096643 Method of manufacturing microvalves
03/17/1992US5095725 Press and actuator using piezoelectric element
03/17/1992CA1297579C Piezo-electric transducer with several coaxial sensitive elements
03/12/1992DE4033091C1 Controlling elastic characteristics of sensor - by embedding electrostrictive fibres in electroconductive matrix on non-conductive matrix e.g. of silicon carbide
03/12/1992DE4033089C1 Torsion element for electrostrictive rod or band - uses electrostrictive fibres each with electrically conductive core and piezoelectric outer coating
03/11/1992EP0474375A2 Improvements in materials
03/11/1992EP0474219A2 Laser beam welding apparatus using an ultrasonic motor
03/11/1992EP0364518A4 Shear mode transducer for ink jet systems
03/10/1992US5095256 Drive circuit for a piezoelectric actuator
03/10/1992US5094444 Sheet feeding device
03/10/1992US5094429 Valve having piezoelecrtric drive
03/04/1992EP0473423A2 Vibration driven motor
03/04/1992EP0472971A2 Piezoelectric driver using resonant energy transfer
03/03/1992US5093606 Ultrasonic motor driving circuit
03/03/1992US5093291 High pyroelectric constant, second transition temperature below its curie temperature
03/03/1992US5092978 Apparatus for fabricating piezoelectric films
03/03/1992US5092689 Piezoelectric driver of wire-dot impact printer
03/03/1992US5092360 Flow rated control valve using a high-temperature stacked-type displacement device
02/1992
02/26/1992EP0472342A2 Micro-displacement type information detection probe device and microscope and information processing device by use thereof
02/26/1992EP0472058A1 Punch
02/25/1992US5091820 Ceramic piezoelectric element with electrodes formed by reduction
02/25/1992US5091670 Ultrasonic motor
02/25/1992US5091348 Mixing hydrated oxide sols, dehydrating to form homogeneous gel, heating
02/25/1992US5090254 Polysilicon resonating beam transducers
02/20/1992WO1992002961A1 Bonding of a piezo-electric bending transducer
02/20/1992WO1992002471A1 Method for the preparation of piezoelectric ceramic materials of pztn
02/20/1992DE4025618A1 Piezoelectric tube with polygonally disposed plates - has ceramic walls not exceeding 0.5 mm thickness able to respond to low voltage
02/19/1992EP0471511A2 Cantilever type probe and information processing device equipped with said probe
02/19/1992EP0471495A1 Vibratory sheet feeder
02/18/1992US5089741 Piezofilm impact detector with pyro effect elimination
02/18/1992US5089740 Displacement generating apparatus
02/18/1992US5089739 Laminate type piezoelectric actuator element
02/17/1992CA2049197C Micro-displacement type information detection probe device and scanning tunneling microscope, atomic force microscope, information processing device by use thereof
02/13/1992DE4025436A1 Kontaktierung eines piezoelektrischen biegewandlers Contacting of a piezoelectric bending transducer
02/12/1992EP0470898A1 Piezoelectric ceramic with controlled porosity
02/12/1992EP0470378A2 Vibration wave motor
02/11/1992US5087852 Direct current traveling wave motor
02/11/1992US5087851 Device for driving a part on a vehicle
02/11/1992US5087848 Slotted bus bar for a piezoelectric solid state motor
02/11/1992US5086549 Forming electrically conducting sputtered oxide amorphous films that permit diffusion of hydrogen; removal of impurities
02/09/1992WO1992002962A1 Clamping device for magnetostrictive bodies
02/06/1992WO1992002054A1 Piezoelectric transducer for high speed data transmission and method of operation
02/06/1992WO1992001955A1 Torsional force transducer and method of operation
02/05/1992EP0469883A2 Vibration driven motor
02/05/1992EP0469881A1 Vibration driven actuator
02/05/1992EP0469473A1 Laminated piezoelectric element
02/05/1992EP0469053A1 Preparation of thin film ceramics by sol gel processing
02/04/1992US5085399 Automatically operating valve for regulating water flow and faucet provided with said valve
01/1992
01/30/1992DE4124750A1 Detection of winding faults on package end - has signals from scanning camera evaluated to allow for package rotation
01/29/1992EP0468796A1 Piezoelectric/electrostrictive actuator having ceramic substrate
01/29/1992EP0468734A1 Semi-conductor device having circuits on both sides of insulation layer and ultrasonic signal path between the circuits
01/29/1992CN1058307A Piezoelectric rotary union system
01/29/1992CN1058165A Robotic articulation
01/22/1992EP0467873A2 Mechanical flexure for motion amplification and transducer with same
01/21/1992US5083056 Displacement generating apparatus
01/21/1992CA1294700C Piezoelectric element array echography probe
01/21/1992CA1294659C Shear motor for dynamic mount for laser-beam steering mirror
01/16/1992DE4122984A1 Control unit for piezoelectrical element - is connected to current supply unit and coil with switching unit selectively switched on and off to form resonant circuit
01/15/1992EP0465616A1 Ultrasonic motor with two rotors
01/14/1992US5081391 Piezoelectric cylindrical transducer for producing or detecting asymmetrical vibrations
01/14/1992US5081390 Method of operating a scanning probe microscope to improve drift characteristics
01/14/1992US5081389 Crystal cut angles for lithium tantalate crystal for novel surface acoustic wave devices
01/14/1992US5080218 Vibratory feeding apparatus
01/09/1992WO1992000612A1 Method for producing a magnetostrictive element
01/08/1992EP0464764A1 Driving device
01/08/1992EP0464443A1 Device for driving a piezoelectric element
01/07/1992US5079472 Piezoelectric bending transducer and the use thereof
01/07/1992US5079471 High torque harmonic traction motor
01/07/1992US5079470 Standing-wave type ultrasonic motor and timepiece
01/07/1992US5079460 Magnetostrictive roller drive motor
01/07/1992US5079197 Perovskite solid solutions, driving part of actuator, ultrasonic motors, manganese oxide
01/02/1992EP0358723B1 Process for the production of a piezoelectric ink printing head
12/1991
12/31/1991US5077270 Elements comprising a film of a perovskite compound whose crystallographic axes are oriented and a method of making such elements
12/31/1991US5076314 Nozzle flapper mechanism
12/27/1991EP0462311A1 Composite ultrasound transducer and fabrication process of a structured component from piezoelectric ceramic
12/27/1991EP0462235A1 Multi-surface-sensor control unit for a travelling-wave motor.
12/27/1991EP0064506B2 Improvements in or relating to methods of producing devices comprising metallised regions on dielectric substrates
12/18/1991EP0187829B1 Piezoelectric coaxial cable
12/18/1991CN1057134A 电气牵引电动机 Electric traction motor
12/17/1991US5073740 Laminate-type displacement element
12/17/1991US5073739 Elastic vibrational member
12/11/1991EP0460660A2 A device for driving a piezoelectric element
12/11/1991EP0460387A2 Electric traction motor
12/10/1991US5072035 Concentrating a solution of metal alkoxides, a carboxylic acid and lead alkanoate drawing; calcining; sintering, composites, mechanical flexibility and strength, transducers
12/10/1991CA1292909C Droplet deposition apparatus
12/05/1991CA2040882A1 Electric traction motor
12/04/1991EP0459613A1 Biosensors
12/03/1991US5070486 Process to increase the power of the low frequency electro acoustic transducers and corresponding transducers
12/03/1991US5070316 Device for transmission of the movement and force of a high-magnetostrictive body
11/1991
11/27/1991EP0458638A1 Vibration wave driven motor
11/26/1991US5068567 Apparatus for increasing the recoverable energy of a piezoelectric bender
11/26/1991US5068566 Electric traction motor
11/26/1991US5068565 Motor conversion mechanism utilizing elastic action
11/26/1991US5067551 Method for manufacturing alloy rod having giant magnetostriction
11/20/1991CN1014829B Magnetoelastic torque transducer
11/19/1991US5066884 Ultrasonic motor having high drive efficiency