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)
11/2003
11/13/2003US20030212330 Pulse detecting device and ultrasound diagnostic apparatus
11/12/2003EP1360685A1 Ultrasound transducer and method of manufacturing an ultrasound transducer
11/11/2003US6645151 Ultrasonic probe
11/11/2003US6645150 Wide or multiple frequency band ultrasound transducer and transducer arrays
11/06/2003WO2003092325A1 Composite piezoelectric vibrator
11/06/2003WO2002096505A3 Excisional and ultrasound medical treatment system
11/06/2003WO2002096504A3 Treatment of lung lesions using ultrasound
11/06/2003US20030206490 Single-sided electro-mechanical transduction apparatus
11/06/2003US20030205947 Ultrasonic membrane transducer for an ultrasonic diagnostic probe
11/05/2003CN1453971A Piezoelectric electroacoustic converter
11/05/2003CN1126944C Seal sensor process
11/04/2003US6643378 Bone conduction hearing aid
11/04/2003US6643222 Wave flextensional shell configuration
11/04/2003US6641539 Ultrasonic probe for operation under microscope
10/2003
10/30/2003WO2003019981A3 Electromagnetic piezoelectric acoustic sensor
10/30/2003WO2002096508A8 Ultrasound feedback in medically-treated patients
10/30/2003WO2002096506A3 Tissue-retaining system for ultrasound medical treatment
10/30/2003US20030202672 Piezoelectric electro-acoustic transducer
10/30/2003US20030201696 Piezoelectric transducer, manufacturing method of piezoelectric transducer and pulse wave detector
10/29/2003EP1357768A2 Piezoelectric electro-acoustic transducer
10/29/2003EP1356707A2 Electroacoustic conversion of audio signals, especially voice signals
10/29/2003EP1356451A2 Annular array
10/23/2003WO2003088369A1 Composite piezoelectric body
10/21/2003US6635017 Method and apparatus combining diagnostic ultrasound with therapeutic ultrasound to enhance thrombolysis
10/21/2003US6634071 Method of making shaped piezoelectric composite transducer
10/16/2003WO2003086012A1 Electroacoustic converter
10/16/2003WO2003086011A1 Sound or ultrasound sensor
10/16/2003WO2003001843A3 Variable multi-dimensional apodization control for ultrasonic transducers
10/16/2003US20030194102 Electroacoustic transducer
10/15/2003EP1352387A2 Systems and methods for controlling a phased array focused ultrasound system
10/15/2003EP1142444B1 Passive microphone with wireless transmission
10/15/2003EP1100375B1 Ultrasonic transducer off-aperature connection
10/15/2003CN1449261A Systems and methods for reducing secondary hot spots in a phased array focused ultrasound system
10/14/2003US6632179 Acoustic imaging system with non-focusing lens
10/09/2003WO2002099904A3 Electromechanical converter comprising at least one piezoelectric element
10/09/2003US20030189391 Ultrasonic probe
10/09/2003DE19935768C2 Piezoelektrischer akustischer Alarmgeber A piezoelectric acoustic alarm
10/08/2003EP1350471A1 Ultrasonic transesophageal probe for the imaging and diagnosis of multiple scan planes
10/08/2003EP1084592B1 Resonant panel-form loudspeaker
10/07/2003US6629341 Positioning monolithic wafers on backing sheets, joining using adhesives, then slicing into fibers and covering with conductive films having electrodes patterns; strain activators
10/01/2003EP1250827B1 Transducer
09/2003
09/30/2003US6628047 Broadband ultrasonic transducers and related methods of manufacture
09/30/2003US6626833 Ultrasonic diagnosis system
09/25/2003WO2003079572A1 Parametric loudspeaker system for pre-encoded signal playback
09/25/2003WO2003079461A1 Electro-active device using radial electric field piezo-diaphragm for sonic applications
09/25/2003WO2003077766A1 Multiple scan-plane ultrasound imaging of objects
09/25/2003WO2002096503A3 Staging medical treatment using ultrasound
09/24/2003EP1346604A1 Condenser microphone assembly
09/24/2003EP1346600A2 Loudspeaker systems
09/24/2003EP1345706A1 Method for making a multielement acoustic probe using a metallised and ablated polymer as ground plane
09/24/2003EP1108345B1 Loudspeakers comprising a resonant panel-form member
09/24/2003CN1444491A Systems and methods for creating longer necrosed volumes using phased array focused ultrasound system
09/24/2003CN1121884C Multielement self-focusing supersonic transducer
09/23/2003US6624550 Piezoelectric bending transducer
09/23/2003US6624549 Piezoelectric/electrostrictive device and method of fabricating the same
09/23/2003US6622562 Multi pre-focused annular array for high resolution ultrasound imaging
09/18/2003US20030173874 Electro-active device using radial electric field piezo-diaphragm for sonic applications
09/17/2003EP1172019B1 Piezoelecric vibration exciter
09/16/2003US6618916 Very small transducers arranged on the end of a catheter
09/12/2003WO2003075446A1 Piezoelectric actuator, and timepiece and portable unit with piezoelectric actuator
09/12/2003WO2003001841A3 Loudspeaker
09/12/2003WO2002082857A3 Actuator assembly
09/11/2003US20030168945 Electromechanical transducer
09/10/2003EP1342741A1 Carbodiimide composition for acoustically matching layer, process for producing a formed article for said layer and ultrasonic transducer using said formed article
09/09/2003US6618206 System and method for acoustic imaging at two focal lengths with a single lens
09/09/2003US6615662 Three-dimensional ultrasonic scan probe
09/04/2003US20030166745 Composition containing a carbodiimide resin and inorganic hollow bodies and another reactive resin
09/04/2003US20030163908 Firing laminate of green sheets including piezoelectric ceramic containing lead and conductive paste containing silver, in profile having heating, isothermal and cooling periods in atmosphere with specified oxygen concentration
09/03/2003EP1197121B1 Piezoelectric acoustic alarm
09/03/2003CN1439461A Multilevel Transmitter and transmitting method therefor
09/02/2003US6614143 Class V flextensional transducer with directional beam patterns
09/02/2003US6613004 Systems and methods for creating longer necrosed volumes using a phased array focused ultrasound system
08/2003
08/28/2003WO2003070105A1 Ultrasonic treatment and imaging of adipose tissue
08/28/2003CA2476873A1 Ultrasonic treatment and imaging of adipose tissue
08/27/2003EP1337998A1 Ultrasonic transducer and ultrasonic flowmeter
08/27/2003EP1337698A2 Single crystals of lead magnesium niobate-lead titanate
08/27/2003EP1337351A1 Surface with varying electrical or magnetic properties
08/27/2003CN1438817A Water-proof electroaoustic transducer and portable electronic device fitted with same
08/27/2003CN1438765A Method for piezoelectric vibrator
08/27/2003CN1119791C 压电发声器 Piezoelectric Sounders
08/21/2003WO2003069950A1 Card sound device and electronic apparatus having same
08/21/2003WO2003069594A2 Surface acoustic antenna for submarines
08/21/2003WO2003030777A3 Ultrasonic probe device with rapid attachment and detachment means having a line contact collet
08/21/2003US20030158478 Multiple level transmitter and method of transmitting
08/21/2003US20030154911 Single crystals of lead magnesium niobate-lead titanate
08/21/2003US20030154584 Method for manufacturing piezo-electric vibrator
08/21/2003CA2475692A1 Surface acoustic antenna for submarines
08/20/2003EP1336321A2 Electrodynamic bending moment driver
08/20/2003EP1197120B1 Bending wave panel speaker and method of driving such a speaker
08/20/2003CN1437771A Piezo-electric bending transducer
08/20/2003CN1118688C Ultrasonic transducer
08/19/2003US6607491 Ultrasonic probe
08/19/2003US6606772 Method for manufacturing piezoelectric oscillator
08/14/2003US20030150273 Ultrasonic array transducer
08/12/2003US6606389 Piezoelectric film sonic emitter
08/12/2003US6605246 Ferroelectric relaxor polymer method
08/12/2003US6605043 Diagnostic medical ultrasound systems and transducers utilizing micro-mechanical components
08/12/2003US6604433 Ultrasonic transducer and ultrasonic flowmeter
08/07/2003WO2003065763A1 Gating grid and method of making same
08/07/2003WO2003065762A1 Speaker for super-high frequency range reproduction
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