| Patents for H04R 17 - Piezo-electric transducers; Electrostrictive transducers (7,213) |
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| 07/29/2009 | EP2082612A1 Sound transducer device |
| 07/29/2009 | CN201282553Y Composite piezoelectric speaker |
| 07/29/2009 | CN100521819C Polarized zone control of silicon-base ferroelectric micro acoustic sensor and method of connecting electrode |
| 07/28/2009 | US7567681 Surface deformation electroactive polymer transducers |
| 07/28/2009 | US7565724 forming a layer of NiO2 above Si substrate; forming a lanthanum nickelate layer over nickel oxide; diffusing nickel from the nickel oxide containing layer to the lanthanum nickelate layer the lanthanum nickelate layer was oriented to (100). |
| 07/23/2009 | US20090185701 Flexible piezoelectric sound-generating devices |
| 07/23/2009 | US20090185045 Dual-purpose hardware aperture |
| 07/23/2009 | US20090184606 Rolled electroactive polymers |
| 07/23/2009 | DE202009004108U1 Gerichteter Monitorlautsprecher Directional monitor speakers |
| 07/22/2009 | CN100517726C Thin film circuit substrate, piezoelectric speaker device, display device, and sound source built-in type display device |
| 07/22/2009 | CN100515342C Multipicture converter array and using method |
| 07/21/2009 | US7564986 Ultrasonic speaker and projector |
| 07/21/2009 | US7562428 Manufacturing an ink jet head |
| 07/16/2009 | WO2009088001A1 Ultrasonic probe, process for producing ultrasonic probe, and ultrasonic diagnosis apparatus |
| 07/16/2009 | US20090178716 System and Method for Acoustic Focusing Hardware and Implementations |
| 07/16/2009 | DE19601656B4 Bedämpfter Ultraschallwandler Damped ultrasonic transducer |
| 07/16/2009 | DE112007001957T5 Schallwandleranordnung mit geringem Profil Transducer array with low profile |
| 07/14/2009 | US7561705 Reduction of flux leakage in a dynamic microphone |
| 07/14/2009 | US7559128 Method of manufacturing a piezoelectric/electrostrictive device |
| 07/14/2009 | CA2619954A1 Ceramic polymer dielectric fabrication |
| 07/09/2009 | DE102008054533A1 Ultraschallsensor Ultrasonic sensor |
| 07/08/2009 | CN201270585Y 复合压电扬声器 Composite piezoelectric speaker |
| 07/08/2009 | CN201270584Y 复合压电扬声器 Composite piezoelectric speaker |
| 07/08/2009 | CN101478709A Ultrasonic sensor and loudspeaker |
| 07/07/2009 | US7557489 Embedded circuits on an ultrasound transducer and method of manufacture |
| 07/02/2009 | WO2009081691A1 Organic piezoelectric material, process for producing the organic piezoelectric material, and ultrasonic vibrator and ultrasonic probe using the organic piezoelectric material |
| 07/02/2009 | US20090169034 Condenser microphone mountable on main pcb |
| 07/02/2009 | US20090167109 Piezoelectric pump, cooling device, and electronic apparatus |
| 07/01/2009 | EP2076062A1 Ultrasonic sensor |
| 07/01/2009 | EP2076061A1 Ultrasonic transducer |
| 07/01/2009 | CN201267014Y Piezoelectric loudspeaker |
| 07/01/2009 | CN201267013Y Percussion instrument acoustic pick-up and percussion instrument |
| 06/30/2009 | US7555118 Microphone coupler for a communication device |
| 06/25/2009 | WO2009078208A1 Ultrasonic probe, its manufacturing method, and ultrasonic diagnostic device |
| 06/25/2009 | WO2009078184A1 Piezoelectric sound transducer |
| 06/25/2009 | DE102007061727A1 Mikromechanisches Bauelement Micromechanical component |
| 06/23/2009 | US7551417 Thin film circuit substrate, piezoelectric speaker device, display device, and sound-generating display device |
| 06/23/2009 | US7549962 Diagnostic medical ultrasound systems and transducers utilizing micro-mechanical components |
| 06/23/2009 | CA2482141C Sound or ultrasound sensor |
| 06/18/2009 | US20090154735 Piezoelectric microphone, speaker, microphone-speaker integrated device and manufacturing method thereof |
| 06/18/2009 | US20090154734 Method for fabricating micro speaker and micro speaker fabricated by the same |
| 06/18/2009 | US20090152999 Piezoelectric actuator and method for manufacturing piezoelectric actuator |
| 06/17/2009 | CN100502560C Condenser microphone assembly |
| 06/11/2009 | WO2009071934A1 Acoustic transducer |
| 06/11/2009 | WO2009036090A3 Wireless resonating surface speaker and method of using the same |
| 06/11/2009 | US20090147973 Apparatus including two housings and a piezoelectric transducer |
| 06/11/2009 | US20090146531 Manufacturing Process For Thin Film Bulk Acoustic Resonator (FBAR) Filters |
| 06/11/2009 | US20090144955 Ultrasound radiating members for catheter |
| 06/11/2009 | CA2707672A1 Acoustic transducer |
| 06/10/2009 | EP2066457A1 Low-profile acoustic transducer assembly |
| 06/09/2009 | US7545082 Ultrasonic sensor device and ultrasonic transducer |
| 06/09/2009 | US7545012 Capacitive micromachined ultrasound transducer fabricated with epitaxial silicon membrane |
| 06/04/2009 | WO2009070758A1 Apparatus and method for selectively driving a piezo transducer |
| 06/04/2009 | WO2009069379A1 Ultrasound probe, method for manufacturing the same, and ultrasound diagnostic apparatus |
| 06/03/2009 | EP0985327B1 Flush mounted uni-directional microphone |
| 06/03/2009 | CN100496057C Piezoelectric electroacoustic transducer |
| 05/28/2009 | US20090134235 Vibration Systems and Methods |
| 05/27/2009 | CN201248133Y Piezoelectric acoustical generator |
| 05/27/2009 | CN201248132Y Multilayer piezoelectric loudspeaker for mobile communication |
| 05/27/2009 | CN100490755C Ultrasonic curing device |
| 05/22/2009 | WO2009063905A1 Piezoelectric acoustic device and electronic apparatus |
| 05/21/2009 | US20090127978 Film bulk acoustic wave resonator, its fabrication method and film bulk acoustic wave resonator filter using the resonator |
| 05/20/2009 | DE10207330B4 Verfahren zum Herstellen akustischer Dünnfilmvolumenresonatoren (FBARs) mit unterschiedlichen Frequenzen auf dem gleichen Substrat durch ein Subtraktionsverfahren und Vorrichtung, die das Verfahren beinhaltet A method of manufacturing thin film bulk acoustic resonators (FBARs) with different frequencies on the same substrate by a subtraction method and apparatus incorporating the method |
| 05/19/2009 | US7535801 Multiple frequency sonar transducer |
| 05/19/2009 | CA2361833C Low profile acoustic sensor array and sensors with pleated transmission lines and related methods |
| 05/13/2009 | EP1535350B1 Low acceleration sensitivity mounting structures for crystal resonators |
| 05/13/2009 | CN201238381Y Non-magnetic voice audio transducer |
| 05/13/2009 | CN201238380Y Piezo-electricity piece sounding device |
| 05/13/2009 | CN201238379Y 压电扬声器 Piezoelectric speaker |
| 05/12/2009 | US7530151 Vibrator array, manufacturing method thereof, and ultrasonic probe |
| 05/07/2009 | US20090116669 Mems microphone package having sound hole in pcb |
| 05/07/2009 | US20090116341 Hybrid-drive multi-mode pipe projector |
| 05/07/2009 | US20090115285 Liquid-gap electrostatic hydraulic micro actuators |
| 05/07/2009 | US20090113686 Piezoelectric Actuator, Ink-Jet Head Provided with the Same, Ink-Jet Printer, and Method for Manufacturing Piezoelectric Actuator |
| 05/07/2009 | US20090113685 Methods to make piezoelectric ceramic thick film array and single elements and devices |
| 05/07/2009 | DE102007014579B4 Mikrofon Microphone |
| 05/06/2009 | EP1696799A4 Method for mapping temperature rise using pulse-echo ultrasound |
| 05/06/2009 | CN201234342Y Magnetostrictive solid acoustic apparatus |
| 05/06/2009 | CN201234334Y 耳机 Headphone |
| 05/06/2009 | CN100485409C Ultrasonic sensor |
| 04/30/2009 | WO2009053116A1 Earphone and a method for providing an improved sound experience |
| 04/29/2009 | EP1266346B1 Piezoelectric biometric identification device and applications thereof |
| 04/29/2009 | CN100483187C Liquid crystal display device having sound output function and the like and electronic device using the same |
| 04/23/2009 | WO2009050909A1 Recoilless speaker unit |
| 04/23/2009 | WO2009050881A1 Ultrasonic probe |
| 04/23/2009 | DE102007049212A1 Ultrasonic converter has housing made of insulated material, where metallization is formed at inner wall of housing from metallic coating |
| 04/22/2009 | CN201226589Y Automatic impedance matcher for ultrasound piezoelectric transducer |
| 04/22/2009 | CN100479760C Ultrasonic probe and ultrasonic diagnostic apparatus |
| 04/21/2009 | US7522475 Ultrasonic sensor and obstacle detection device |
| 04/21/2009 | US7520038 Piezoelectric element, method of manufacturing the same, liquid-jet head, method of manufacturing the same, and liquid-jet apparatus |
| 04/16/2009 | WO2009047085A1 Reaction resin and two-component system for producing the same |
| 04/16/2009 | WO2008079467A3 Microphone array with electromagnetic interference shielding means |
| 04/16/2009 | US20090096326 Piezoelectric actuator, acoustic component, and electronic device |
| 04/15/2009 | CN201222801Y Ear shield with communication function |
| 04/14/2009 | US7518294 Manufacturing method of quartz crystal resonator, apparatus therefor, and quartz crystal resonator manufactured thereby |
| 04/09/2009 | WO2009045170A1 Silicon microphone with enhanced impact proof structure using bonding wires |
| 04/09/2009 | WO2009044640A1 Ultrasonic sensor |
| 04/08/2009 | EP1949754A4 Medium/low band sound reinforcement film-type audio-speaker using piezoelectric film as vibration element |
| 04/08/2009 | CN101404786A Ultrasonic probe and ultrasonic diagnostic apparatus |
| 04/07/2009 | US7514851 Curved capacitive membrane ultrasound transducer array |