Patents
Sitemap › H01 - Basic electric elements › H01L - Semiconductor devices; Electric solid state devices not otherwise provided 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
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)
11/1991
11/19/1991US5065999 Sheet feeding device utilizing vibration waves
11/19/1991CA1292267C Ultrasonic driving device
11/13/1991EP0456302A2 Inter-element mounting for stacked piezoelectric transducers
11/12/1991US5065068 Ferroelectric ceramic transducer
11/12/1991US5065067 Piezoelectric circuit
11/12/1991US5064596 Extrusion,desolventizing, solidification
11/12/1991US5063986 Rare earth and transition metal alloy
11/09/1991WO1991017351A1 An apparatus for driving a piezoelectric actuator
11/09/1991CA2063382A1 Apparatus for driving a piezoelectric actuator
11/06/1991EP0455342A1 Piezoelectric/electrostrictive actuator having at least one piezoelectric/electrostrictive film
11/05/1991US5063542 Piezoelectric transducer with displacement amplifier
11/05/1991CA2041628A1 Inter-element mounting for stacked piezoelectric transducers
10/1991
10/31/1991WO1991016799A1 Transformed stress direction acoustic transducer
10/30/1991EP0453826A1 Robotic articulation
10/30/1991CN1014544B Automatically operating valve for adjusting water flow and tap naving this valve
10/29/1991US5061882 Power supply frequency regulating device for vibration wave driven motor
10/29/1991US5061760 Vinylidene cyanide alternating copolymers exhibiting nonlinear optical and piezoelectric properties
10/28/1991CA2039546A1 Robotic articulation
10/24/1991CA2039547A1 Piezoelectric rotary union system
10/23/1991EP0453228A2 Fiber optic interferometric chemical sensor
10/23/1991EP0452731A1 Piezoelectric rotary union system
10/22/1991US5059857 Integral connector for a piezoelectric solid state motor stack
10/22/1991US5059850 Temperature compensation member composed of shape memory effect alloy for an actuator driven by a piezo-electric element
10/22/1991US5059849 Ultrasonic motor
10/22/1991US5059566 High-dielectric constant ceramic composite and ceramic capacitor elements
10/21/1991CA2039007A1 Fiber-optic interferometric chemical sensor
10/17/1991CA2038894A1 Piezoelectric snap action switch
10/16/1991EP0452275A1 Method for manufacturing articles of functionally gradient material
10/16/1991EP0451992A2 Detection of vibrations of a microbeam through a shell
10/16/1991EP0451533A1 Piezoelectric ceramic transducer disc and process for making the same
10/15/1991US5057734 Apparatus for driving piezoelectric element for closing and opening valve member
10/15/1991US5057588 Vinylidene cyanide alternating copolymers
10/15/1991US5057478 Method of producing a composite material comprising a perovskite complex compound having an α-olefin polymer deposited thereon
10/15/1991US5056201 Method of making a travelling-wave motor
10/15/1991CA1290846C Means for electrically connecting electrodes on different surfaces of piezoelectric polymeric films
10/09/1991EP0450962A2 Vibration wave driven motor
10/09/1991EP0450919A1 Vibration wave driven motor
10/09/1991CN1055264A 压电马达 Piezoelectric motor
10/08/1991US5055760 Linear actuator drive control apparatus
10/08/1991US5055750 Air damper operating system of vehicle air conditioners
10/08/1991US5055734 Single-piece multiple electrode conductor
10/08/1991US5055733 Method for converting micromotions into macromotions and apparatus for carrying out the method
10/08/1991US5055732 Ultrasonic motor
10/02/1991EP0449473A2 Method for hermetically sealing electronic devices
10/02/1991EP0449048A1 Piezoelectric motor
10/02/1991EP0448861A1 Semiconductor integrated circuit device
10/02/1991EP0448604A1 Process for producing highly crystalline and homogeneous sub-micron doped and undoped piezoelectric ceramic powders with controlled stoichiometry and particle size
10/01/1991US5053672 Energy converter apparatus
10/01/1991US5053671 Piezoelectric sensor for monitoring kinetic momentum
10/01/1991US5053670 Precision actuator
10/01/1991US5053669 Ultrasonic motor
10/01/1991US5053668 Apparatus for driving piezoelectric element for closing and opening valve member
10/01/1991US5052777 Graphics display using bimorphs
10/01/1991US5052232 Magnetoelastic torque transducer
10/01/1991US5052119 Angular micro-positioning device
10/01/1991CA1290000C Ultrasonic driving device
10/01/1991CA1289999C Ultrasonic driving device
09/1991
09/25/1991EP0448349A2 Laminate type piezoelectric actuator element
09/25/1991CN1054863A Direct current traveling wave motor
09/24/1991US5051647 Ultrasonic motor
09/24/1991US5051646 Method of driving a piezoelectric scanner linearly with time
09/24/1991US5051379 Coating an inorganic material on a wafer, masking for a beam pattern photoresists
09/24/1991US5050587 Vibrator system and vibrotherapeutic device using the same
09/24/1991CA2038465A1 Piezoelectric motor
09/19/1991WO1991013922A1 Vinylidene cyanide alternating copolymers
09/18/1991EP0447172A1 Ultrasonic motor
09/18/1991EP0446591A2 Direct current traveling wave motor
09/18/1991CN1054689A Electrical drive for segmented transducer
09/17/1991USRE33691 Piezoelectric ceramic switching devices and systems and method of making the same
09/17/1991US5049775 Integrated micromechanical piezoelectric motor
09/17/1991US5049774 Vibratory motor
09/14/1991CA2035562A1 Direct current traveling wave motor
09/11/1991EP0445930A1 Lithium niobate etchant
09/11/1991EP0445348A1 Electrical drive for a segmented transducer
09/11/1991EP0445340A1 Valve with piezoelectric drive
09/11/1991CN2084661U Permanent piezoelectric ceramic crystal wafe transducer
09/10/1991US5047683 Hybrid transducer
09/10/1991US5047535 For production of multilayer films
09/10/1991US5047162 Piezoelectric composite materials and method of making
09/10/1991CA1288725C .beta. PHASE PVF _FILM FORMED BY CASTING IT ONTO SPECIALLY PREPARED INSULATINGSUPPORT
09/06/1991CA2020185A1 Electrical drive for a segmented transducer
09/05/1991WO1991013469A1 Improvements in or relating to electrically controlled fluid valves
09/05/1991WO1991012953A1 Method and apparatus for structural actuation and sensing in a desired direction
09/04/1991EP0444204A1 Piezoelectric ceramic composition for actuator
09/03/1991US5045747 Apparatus for poling a piezoelectric ceramic
09/03/1991US5045437 Method for producing a structured ceramic film or a ceramic member constructed of such films by sintering and useful as ultrasound transducers
08/1991
08/28/1991EP0443873A1 Magnetostriction type actuator
08/28/1991EP0441809A4 Method for effecting solder interconnects
08/27/1991US5043622 Easily poled 0-3 piezoelectric composites for transducer applications
08/27/1991US5043621 Piezoelectric actuator
08/21/1991EP0442469A1 Driving device for ultrasonic wave motor
08/21/1991EP0441809A1 Method for effecting solder interconnects.
08/21/1991CN1053947A Automatically operating valve for regulating water flow and faucet provided with said valve
08/21/1991CN1053946A Automatically operating valve for regulating water flow and faucet provided with said valve
08/20/1991US5041753 High torque magnetic angular positioning motor
08/20/1991US5041750 Vibration wave driven apparatus
08/14/1991EP0441567A2 Pressure sensitive device
08/14/1991EP0441540A1 Vibration wave driven motor
08/14/1991EP0441438A1 Method of producing a multilayer piezoelectric element as well as multilayer piezoelectric element
08/14/1991EP0441408A2 Ferroelectric film device and process for producing the same
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