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)
04/2003
04/17/2003WO2002096481A3 Deployable ultrasound medical transducers
04/17/2003WO2002073318A3 Method and device for vibration control
04/17/2003WO2002051205A9 Condenser microphone assembly
04/17/2003DE10015183C2 Piezoelektrische Keramikzusammensetzung, dieselbe verwendender Summer und Aktuator The piezoelectric ceramic composition, the same used Direction buzzer and actuator
04/17/2003CA2462728A1 Ultrasonic probe device with rapid attachment and detachment means having a line contact collet
04/15/2003US6548940 Speaker
04/15/2003US6546803 Ultrasonic array transducer
04/10/2003WO2003030585A1 Device for listening to voice and/or musical signals by means of cranial bone transmission
04/10/2003US20030069502 Ultrasound feedback in medically-treated patients
04/09/2003EP1299940A1 Mechanical-to-acoustical transformer and multi-media flat film speaker
04/09/2003CN1409939A Parametric loudspeaker with improved phase characteristics
04/08/2003US6545949 Axial drive resonant pipe projector (ADRPP)
04/08/2003US6545384 Electroactive polymer devices
04/08/2003US6543110 Electroactive polymer fabrication
04/03/2003US20030065261 Ultrasound probe for ultrasound examination system
04/03/2003US20030061693 Piezo-electric resonator and manufacturing method thereof
04/02/2003EP1298642A2 Ultrasonic probe containing an element for controlling the sonic speed
04/02/2003EP1298450A2 Ultrasonic receiving apparatus and ultrasonic diagnosing apparatus using the same
04/02/2003EP0929825B1 Two-dimensional array transducer and beamformer
04/02/2003CN1104395C Piazoelectric ceramic composition, use of preparation buzzer and controller thereof
04/01/2003US6542245 Dynamic change detecting method, dynamic change detecting apparatus and ultrasonic diagnostic apparatus
04/01/2003US6541894 Piezoelectric acoustic alarm
03/2003
03/27/2003WO2003025924A1 Optical recording medium
03/27/2003WO2003024625A1 Frequency and amplitude apodization of transducers
03/27/2003US20030060715 Ultrasonic probe
03/27/2003US20030060707 Ultrasonic receiving apparatus and ultrasonic diagnosing apparatus using the same
03/27/2003US20030059078 Directional sensors for head-mounted contact microphones
03/27/2003US20030059069 Loudspeaker
03/27/2003US20030059068 Electronic article comprising loudspeaker and touch pad
03/27/2003US20030058741 Axial drive resonant pipe projector (adrpp)
03/27/2003US20030057294 Atomiser
03/27/2003US20030056351 Piezoelectric macro-fiber composite actuator and method for making same
03/26/2003EP0843952A4 Ultrasonic transducer
03/25/2003US6538363 Method of manufacturing a piezoelectric element
03/25/2003US6536290 Ultrasonic flowmeter and gas flowmeter using the same
03/20/2003US20030055311 Biocompatible transducers
03/20/2003US20030053645 Piezo-electric speaker
03/20/2003US20030053643 Apparatus comprising a vibration component
03/20/2003US20030053642 Passenger vehicle
03/20/2003US20030052570 Electromechanic film and acoustic element
03/20/2003US20030051324 Method of manufacturing ferroelectric capacitor
03/19/2003EP1292995A1 Piezo-electric bending transducer
03/19/2003CN1404282A Piezoelectric electroacoustic transducer
03/18/2003US6532644 Method of making a piezoelectric speaker with a unitary body comprising a base section and dome shaped vibrating section
03/13/2003US20030048915 Communication device using bone conduction
03/13/2003US20030048914 Micromachined piezoelectric microspeaker and fabricating method thereof
03/12/2003CN1402582A Surface acoustic wave device
03/06/2003WO2003019981A2 Electromagnetic piezoelectric acoustic sensor
03/06/2003WO2002043434A3 Electrodynamic bending moment driver
03/06/2003US20030045768 Ultrasonic probe for operation under microscope
03/06/2003CA2493389A1 Electromagnetic piezoelectric acoustic sensor
03/05/2003EP1287720A1 Electromechanical transducer
03/05/2003CN1400677A Piezoelectric element and oscillating converter with piezoelectric element
03/04/2003US6527723 Variable multi-dimensional apodization control for ultrasonic transducers
02/2003
02/28/2003CA2356044A1 Acoustic piezoelectric resonator sensor
02/27/2003WO2003017720A1 Multilayer piezoelectric oscillator
02/25/2003US6524253 Volumetric ultrasound imaging with a thinned array
02/20/2003US20030035557 Surface acoustic wave device
02/20/2003US20030034714 Piezoelectric electroacoustic transducer
02/18/2003US6522759 Speaker
02/18/2003US6522755 Vehicular loudspeaker system
02/18/2003US6520019 Ultrasound sensor
02/13/2003WO2003013181A2 System for attaching an acoustic element to an integrated circuit
02/13/2003WO2003012777A1 Acoustic imaging system with non-focusing lens
02/13/2003WO2003012776A1 Ultrasonic probe using ribbon cable attachment system
02/13/2003WO2003011749A2 Micro-machined ultrasonic transducer (mut) array
02/13/2003WO2002065451A9 Floor mat with voice-responsive display
02/13/2003US20030032898 Method for aiming ultrasound for medical treatment
02/13/2003US20030032884 Ultrasound transducer for improving resolution in imaging system
02/13/2003US20030032211 Microfabricated transducers formed over other circuit components on an integrated circuit chip and methods for making the same
02/13/2003DE10138434C1 Fokussierender elektroakustischer Wandler und Verfahren zum Test seiner Ausgangsleistung The focusing electroacoustic transducer and method for testing of its output
02/12/2003EP1283517A2 Focussed electro-acoustic transducer and method for testing its output power
02/12/2003CN1396753A Piezoelectric electroacoustic transducer and its manufacturing method
02/12/2003CN1396752A Piezoelectric electroacoustic transducer
02/11/2003US6519349 Loudspeaker
02/06/2003US20030028109 Micro-machined ultrasonic transducer (MUT) array
02/06/2003US20030028108 System for attaching an acoustic element to an integrated circuit
02/06/2003US20030028104 Acoustic imaging system with non-focusing lens
02/06/2003US20030026435 Focussing electroacoustic transducer and method for testing its output power
02/06/2003US20030024317 Ultrasonic transducer wafer having variable acoustic impedance
02/05/2003EP1282174A2 Piezoelectric element and vibration transducer with piezoelectric element
02/05/2003CN1395404A Piezoelectric electroacoustic transducer and its manufacturing method
02/04/2003WO2001095667A1 Electromechanical transducer
02/04/2003US6515402 Array of ultrasound transducers
01/2003
01/30/2003WO2003009635A2 Loudspeaker system
01/30/2003WO2003009219A2 Electronic article comprising loudspeaker & touch pad
01/30/2003US20030021458 Piezoelectric electroacoustic transducer and manufacturing method of the same
01/30/2003US20030020370 Cell driving type actuator and method for manufacturing the same
01/30/2003US20030020364 Laminated piezoelectric element, method for manufacturing the same, and piezoelectric actuator
01/29/2003EP0993344B1 Ultrasonic transducer
01/29/2003CN1394457A Transducer
01/29/2003CN1394103A Piezoelectric electroacoustic transducer and mfg. method thereof
01/28/2003US6512323 Piezoelectric actuator device
01/23/2003US20030018270 Tissue-retaining system for ultrasound medical treatment
01/23/2003US20030018268 Matrix type ultrasonic probe and method of manufacturing the same
01/23/2003US20030018266 Faceted ultrasound medical transducer assembly
01/23/2003US20030018265 Ultrasonic probe
01/23/2003US20030015942 Piezoelectric electroacoustic transducer
01/23/2003US20030015037 Method and apparatus for delivering therapy in and association with an intravascular ultrasound device
01/16/2003US20030014093 Excisional and ultrasound medical treatment system
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