Patents for H04R 17 - Piezo-electric transducers; Electrostrictive transducers (7,213)
03/2010
03/25/2010DE102008038225A1 Ultrasound producing device for use in parking assistance system of motor vehicle, has ultrasound transducer inserted into opening provided at inner side of bumper and coupled with rear side of foil in vibration transmitting manner
03/23/2010US7684576 Resonant element transducer
03/23/2010US7682000 Piezoelectric actuator, liquid transporting apparatus and method of producing piezoelectric actuator
03/23/2010US7681291 Piezoelectric resonator and method for manufacturing thereof
03/23/2010US7681290 Piezoelectric bimorph beam manufacturing method
03/18/2010WO2010030740A1 Piezoelectric transducers and intertial sensors using piezoelectric transducers
03/18/2010WO2010029783A1 Organic piezoelectric material, organic piezoelectric film, ultrasound transducer, method for manufacturing ultrasound transducer, ultrasound probe and ultrasound medical imaging device
03/18/2010US20100068460 Method for manufacturing polymeric piezoelectric film and polymeric piezoelectric film
03/16/2010US7679263 Apparatus for two-dimensional transducers used in three-dimensional ultrasonic imaging
03/16/2010US7678055 Ultrasonic probe with a conductive substrate connected to a transducer
03/11/2010WO2010027615A2 Asymmetric composite acoustic wave sensor
03/11/2010WO2010027601A1 Electromagnetic interference shields with piezos
03/11/2010WO2010026871A1 Organic piezoelectric material, ultrasonic oscillator, and ultrasonic probe
03/11/2010WO2010005669A3 System and method of an acoustic flow meter with dual flow measurements
03/11/2010US20100061573 Piezoelectric acoustic transducer
03/11/2010DE102007044490B4 Ultraschallsensor zur Verwendung in einem Kraftfahrzeug Ultrasonic sensor for use in a motor vehicle
03/10/2010CN201422160Y Ultrathin piezoelectric patch
03/10/2010CN101669375A Ultrasonic transducer and ultrasonic imaging apparatus
03/04/2010WO2010024017A1 Ultrasonic transmitting/receiving device
03/04/2010US20100054506 Piezoelectric speaker and electronic apparatus with piezoelectric speaker
03/04/2010US20100054505 Film speaker
03/03/2010EP2158790A1 Audio apparatus
03/03/2010EP2158586A1 Piezoelectric transducer device
03/03/2010EP1397075B1 Deployable ultrasound medical transducers
03/03/2010CN101662718A Film loudspeaker
03/02/2010US7671517 Piezoelectric electroacoustic transducer
02/2010
02/24/2010CN101656905A Piezoelectric vibrator
02/24/2010CN100592384C Variable multi-dimensional apodization control for ultrasonic transducers
02/23/2010US7667370 Generating device for generating a useful stream of a medium, in particular for generating sound
02/18/2010WO2010018694A1 Organic piezoelectric material film, method for production of organic piezoelectric material film, method for production of ultrasonic oscillator, and ultrasonic medical imaging instrument
02/18/2010US20100038998 Piezoelectric actuator and electronic apparatus
02/17/2010EP1520446B1 Method for forming acoustically active element in a multi-layer circuit-board structure and a multi-layer circuit-board structure
02/17/2010CN201409221Y Signal converter and microphone comprising same
02/17/2010CN100591168C Loud speaker system
02/16/2010US7661180 Method of manufacturing a piezoelectric actuator and liquid ejection head
02/11/2010WO2010016291A1 Organic piezoelectric material, method for production of the same, and ultrasonic oscillator, ultrasonic probe and ultrasonic image detection device each comprising the same
02/10/2010EP2152024A1 Ultrasonic transducer and ultrasonic imaging apparatus
02/10/2010CN101646117A Soft support bridge type silicon micro-piezoelectric microphone chip and prepration method thereof
02/10/2010CN101646116A Silicon micro piezoelectric microphone of series electrode type
02/10/2010CN101646115A Silicon micro piezoelectric microphone based on inn-plane polarization of ferroelectric PZT film and manufacture method thereof
02/04/2010DE102008040905A1 Ultraschallsensor Ultrasonic sensor
02/04/2010DE102005061528B4 Piezokeramisches Bauteil mit Bleizirkonattitanat mit Eisen-Wolfram-Dotierung, Verfahren zum Herstellen des piezokeramischen Bauteils und seine Verwendung Piezoceramic component having a lead zirconate titanate with iron-tungsten doping, method for manufacturing the piezoceramic component and its use
02/03/2010CN101641966A Piezoelectric sound transducer
02/02/2010US7657043 Electro-optical device and electronic apparatus
02/02/2010US7657042 Liquid crystal display device having sound
01/2010
01/28/2010WO2010010727A1 Organic piezoelectric material film, method for production of the same, method for production of ultrasonic oscillator using the same, and ultrasonic medical imaging instrument
01/28/2010US20100020646 Ultrasonic transducer with improved method of beam angle control
01/28/2010US20100020645 Reconfigurable array with locally determined switch configuration
01/28/2010US20100018596 Micro fluidic transportation device and method for manufacturing the same
01/26/2010US7652410 Ultrasound transducer with non-uniform elements
01/26/2010US7651197 Method of manufacturing an inkjet head through the anodic bonding of silicon members
01/26/2010CA2392552C Electromechanic film and acoustic element
01/21/2010WO2009146140A3 Methods and systems to form high efficiency and uniform fresnel lens arrays for ultrasonic liquid manipulation
01/21/2010DE112007002441T5 Nicht-gerichtetes Miniaturmikrofon The non-directional Lavalier Microphone
01/21/2010DE102008033098A1 Ultraschallwandler Ultrasonic transducer
01/20/2010EP1240676B1 Electro-active devices
01/20/2010CN201388295Y Piezoelectric trumpet
01/20/2010CN100584108C Card sound device and electronic apparatus having same
01/14/2010WO2010005669A2 System and method of an acoustic flow meter with dual flow measurements
01/14/2010WO2010005045A1 Thin microphone and helmet with microphone
01/14/2010US20100008191 Acoustic projector having minimized mechanical stresses
01/14/2010US20100007444 GHz Surface Acoustic Resonators in RF-CMOS
01/14/2010US20100005886 Sensor and its fabrication process
01/14/2010CA2721971A1 System and method of an acoustic flow meter with dual flow measurements
01/13/2010EP2143381A1 Ultrasonic transmitter/receiver, ultrasonic probe, and ultrasonic diagnostic apparatus
01/13/2010CN201383871Y Double-side piezoelectric ceramic loudspeaker
01/13/2010CN201379912Y Self-focusing ultrasonic transducer
01/13/2010CN101626537A Flexible piezoelectric sound-generating devices
01/13/2010CN100580967C Cylindrical ultrasound transceivers
01/07/2010WO2010002887A2 Piezoelectric memes microphone
01/07/2010WO2010001634A1 Organic piezoelectric material, ultrasonic vibrator, and ultrasonic image diagnosis apparatus for medical application
01/07/2010WO2010001633A1 Organic piezoelectric material, process for producing the organic piezoelectric material, ultrasonic vibrator, and ultrasonic image diagnosis apparatus for medical application
01/07/2010WO2010001520A1 Piezoelectric exciter, and piezoelectric exciter unit
01/07/2010WO2008087630A3 A method for the fully automated production of a piezoelectric switch and a process therefor
01/05/2010US7641321 Method of manufacturing liquid ejection head and image forming apparatus
12/2009
12/31/2009US20090320576 Piezoresistive Pressure-Measuring Plug for a Combustion Engine
12/30/2009CN201374811Y Audio transmitter
12/30/2009CN101617544A Film speaker
12/24/2009DE102008027970A1 Ultrasonic sensor for distance measurement during parking of motor vehicle, has piezoelectric element arranged proximal to diaphragm, and another piezoelectric element spaced apart from diaphragm and connected with diaphragm
12/22/2009CA2459921C Cylindrical ultrasound receivers and transceivers formed from piezoelectric film
12/17/2009DE102008027687A1 Ultraschallwandler Ultrasonic transducer
12/16/2009CN101605288A Ultrasonic energy transducer with continuously changed acoustic impedances
12/16/2009CN100569186C Ultrasound imaging method and system, ultrasound transducer array and probe
12/10/2009US20090303839 Stress-biased cymbals incorporating a shape memory alloy
12/10/2009US20090303838 Acoustic Sensor and Method
12/09/2009EP2130505A2 Ultrasonic vibration apparatus
12/09/2009EP2130495A1 Ultrasonic probe and method for manufacturing the same and ultrasonic diagnostic device
12/08/2009US7630506 Condenser microphone unit
12/03/2009WO2009146140A2 Methods and systems to form high efficiency and uniform fresnel lens arrays for ultrasonic liquid manipulation
12/03/2009WO2009144972A1 Sheet-type vibrating body and acoustic equipment
12/03/2009WO2009144964A1 Piezoelectric speaker, speaker device and tactile feedback device
12/02/2009EP2126992A1 Piezoelectric component
12/02/2009CN100566145C Method for piezoelectric vibrator
12/02/2009CN100565240C Ultrasonic sensor assembly
12/01/2009US7626890 Hybrid-drive multi-mode pipe projector
11/2009
11/26/2009WO2009141912A1 Earphone apparatus
11/25/2009CN101588528A Novel acoustical-electrical converter and microphone
11/24/2009US7621028 Method for optimized dematching layer assembly in an ultrasound transducer
11/24/2009CA2491558C Acoustic transducers for tubulars
11/19/2009WO2009139237A1 Piezoelectric element and audio equipment
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