Patents
Sitemap › H04 - Electric communication technique › H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers; Deaf-aid sets; Public address systems › H04R 17 - Piezo-electric transducers; Electrostrictive transducers
Patents for H04R 17 - Piezo-electric transducers; Electrostrictive transducers (7,213)
10/1996
10/29/1996US5568679 Method of manufacturing laminated piezoelectric actuator having cavity
10/23/1996EP0738427A1 Ultrasonic transducer with selectable beamwidth and method
10/15/1996US5566241 Method and apparatus for presentation of on-line directional sound
10/15/1996US5566132 Acoustic transducer
10/15/1996US5565727 Holder for ultrasonic power converters
10/10/1996WO1996031871A1 Impedance-matching composite material for an ultrasonic phased array and a method of making
10/10/1996WO1996031870A1 Piezo-electric ultrasound transducer
10/10/1996DE19512417A1 Piezoelektrischer Ultraschallwandler Piezoelectric ultrasonic transducer
09/1996
09/18/1996EP0732864A2 Acoustic transducer
09/18/1996EP0732209A2 Method for producing a layered piezoelectric element
09/17/1996US5555887 Ultrasonic transducer probe with heat dissipating lens
09/17/1996CA2036061C Acoustic ultrasound variable origin, variable angle scanning system
09/12/1996WO1996028001A1 Passive acousto-optic modulator
09/04/1996EP0596974B1 Ultrasonic transducer arrangement and catheter
09/04/1996CN1130458A Sound generating device
09/04/1996CN1130281A Piezoelectric sounder
09/03/1996US5553035 Method of forming integral transducer and impedance matching layers
09/03/1996US5552923 Array of electrodisplacive actuated mirrors and method for the manufacture thereof
09/03/1996US5552004 Method of making an acoustic composite material for an ultrasonic phased array
08/1996
08/28/1996CN1129821A Control circuit for a piezoelectric vibrator
08/27/1996US5550790 Acoustic transducer for level measurement in corrosive chemical environments
08/27/1996US5549110 Device for generating sound impulses for medical applications
08/22/1996DE4446429C1 Vorrichtung zur Behandlung eines Objektes mit fokussierten Ultraschallwellen An apparatus for treating a subject with focussed ultrasonic waves
08/21/1996EP0727259A2 Ultrasonic transducer
08/21/1996CN1129359A Piezoelectric/electrostrictive film element having convex diaphragm portions and method of producing the same
08/20/1996US5548564 Multi-layer composite ultrasonic transducer arrays
08/20/1996US5548180 Vibrator resonator and resonance component utilizing width expansion mode
08/13/1996US5545461 Ceramic diaphragm structure having convex diaphragm portion and method of producing the same
08/06/1996US5542426 Method of fabricating ultrasonic probe
07/1996
07/30/1996US5540807 Bonding apparatus
07/25/1996DE19600689A1 Capacitive component reduction circuit e.g. in electrostatic converter
07/24/1996CN1127430A Piezoelectric/electrostrictive film element and method of producing the same
07/17/1996CN1126937A Low-speed center-triggered wheel sensor
07/04/1996WO1996020471A1 System for processing an object with focused ultrasonic waves
07/04/1996WO1996020046A1 Acoustic transducer shaped as a prestressed ring
07/03/1996CN1032193C Unit for fastening of altrosonic power transferer
06/1996
06/26/1996EP0718817A2 Transducer device
06/25/1996US5530683 Steerable acoustic transducer
06/19/1996EP0655156B1 Ultrasonic transducer
06/18/1996US5526601 Flexure sensor and fishing rod equipped therewith
06/12/1996EP0715755A1 Pressure sealed transducer for motor vehicles
06/05/1996CN1123916A Thin film actuated mirror array
05/1996
05/29/1996EP0713378A1 Active foam for noise and vibration control
05/28/1996CA2044425C Transducer with acoustic matching member and method of making the transducer
05/21/1996US5518951 Method for making thin film piezoresistive sensor
05/15/1996EP0712059A1 Command circuit for piezo-electric vibrator
05/14/1996US5517467 Undersea acoustic antenna with surface sensor
05/09/1996WO1996013869A1 Microfabricated acoustic source and receiver
05/08/1996EP0711096A1 Sound generating device
05/08/1996EP0710357A1 Dielectrically isolated resonant microsensors
05/07/1996US5515341 Proximity sensor utilizing polymer piezoelectric film
05/07/1996US5514927 Piezoelectric audio transducer
05/02/1996DE19539163A1 Electronic radially scanning ultrasonic probe for e.g. endoscope investigating inside patient
05/02/1996DE19531360A1 Transducer sensitivity control device for ultrasonic imaging system
04/1996
04/30/1996US5511550 Ultrasonic transducer array with apodized elevation focus
04/30/1996US5511296 To enhance communication of acoustic waves
04/25/1996WO1996011753A1 Ultrasonic transducer array with apodized elevation focus
04/24/1996EP0707898A2 Method of forming integral transducer and impedance matching layers
04/23/1996US5511043 Multiple frequency steerable acoustic transducer
04/17/1996EP0706835A1 Method of operating an ultrasonic piezoelectric transducer and circuit arrangement for performing the method
04/17/1996EP0641262B1 Underwater acoustic antenna having a surface sensor
04/10/1996EP0705648A2 Ultrasonic transducer for three dimensional imaging
04/10/1996EP0705527A1 Folded dielectric film element and method for manufacturing the same
04/09/1996US5506720 Method for manufacturing an electrodisplacive actuated mirror array
04/09/1996US5505205 Interface element for medical ultrasound transducer
04/03/1996CN1119632A Ceramic diaphragm structure having convex diaphragm portion and method of producing the same
04/02/1996US5504388 Piezoelectric/electrostrictive element having electrode film(s) with specified surface roughness
03/1996
03/28/1996WO1996009655A1 Piezoelectric resonator with an attenuated spurious response
03/27/1996CN1119283A Array of electrodisplacive actuated mirrors and method for the manufacture thereof
03/21/1996WO1996008701A1 Electromechanical transducer
03/20/1996CN1118977A A bifunctional earphone set
03/13/1996EP0701386A2 Speaker and drive device therefor
03/13/1996EP0640020B1 Low frequency sonar projector and method
03/07/1996WO1996006688A1 Proximity sensor utilizing polymer piezoelectric film with protective metal layer
02/1996
02/27/1996US5495137 Proximity sensor utilizing polymer piezoelectric film with protective metal layer
02/27/1996US5495135 Piezoelectric resonator with an attenuated spurious response
02/27/1996US5494038 Apparatus for ultrasound testing
02/27/1996CA2066262C Piezoelectric sound generator and method of its manufacture
02/22/1996WO1996001547A3 Piezo speaker and installation method for laptop personal computer and other multimedia applications
02/21/1996EP0697258A2 Ultrasound probe with banks of interconnected electrostrictive transducer elements
02/21/1996EP0697257A2 Composite piezoelectric transducer arrays with improved acoustical and electrical impedance
02/21/1996CN1117275A Ultrasonic transducer array and manufacturing method thereof
02/20/1996US5493541 Ultrasonic transducer array having laser-drilled vias for electrical connection of electrodes
02/14/1996EP0696435A2 Utrasonic probe
02/14/1996CN1116718A Method for manufacturing an electrodisplacive actuated mirror array
02/06/1996US5488956 Ultrasonic transducer array with a reduced number of transducer elements
01/1996
01/31/1996EP0694339A2 Ultrasonic transducer
01/31/1996EP0694338A2 Z-axis conductive backing layer for acoustic transducers using etched leadframes
01/30/1996US5487211 Method for fabricating a surface-mountable crystal resonator
01/25/1996WO1996001702A1 Wide-band multifrequency acoustic transducer
01/24/1996EP0693790A1 Piezoelectric transformer suitable for generating a high voltage
01/18/1996WO1996001547A2 Piezo speaker and installation method for laptop personal computer and other multimedia applications
01/17/1996EP0692781A2 Interface element for medical ultrasound transducer
01/09/1996US5483501 Short distance ultrasonic distance meter
01/02/1996US5481153 Acoustic non-destructive testing
01/02/1996US5479930 Ultrasonic transesophageal probe with articulation control for the imaging and diagnosis of multiple scan planes
12/1995
12/27/1995EP0689254A1 Accoustic isolator
12/27/1995EP0689187A1 Ultrasonic diagnostic transducer array with elevation focus
12/26/1995US5479521 Piezoceramic capsule for telephone instruments
12/26/1995US5479377 Transducer device
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