| Patents for H04R 17 - Piezo-electric transducers; Electrostrictive transducers (7,213) |
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| 03/22/2007 | US20070064968 Microphone with irregular diaphragm |
| 03/22/2007 | US20070063616 Ultrasonic transducer and its production method |
| 03/22/2007 | US20070062025 Method of poling ferroelectric materials |
| 03/22/2007 | DE102005045019A1 Ultraschallsensor Ultrasonic sensor |
| 03/21/2007 | EP1764843A1 Piezoelectric ceramic element and piezoelectric components using the same |
| 03/21/2007 | CN2882177Y Pizeoelectric loudspeaker system |
| 03/21/2007 | CN1934898A Method of manufacturing film-speaker using piezoelectric film and sound equipment with the same |
| 03/21/2007 | CN1934782A Crystal oscillators |
| 03/21/2007 | CN1931099A Piezoelectric transducer including a plurality of piezoelectric members |
| 03/20/2007 | US7194098 Acoustic device |
| 03/20/2007 | US7193617 Acoustic contact detecting device |
| 03/20/2007 | US7192799 Matrix type piezoelectric/electrostrictive device and manufacturing method thereof |
| 03/20/2007 | US7191503 Method of manufacturing a piezoelectric actuator |
| 03/15/2007 | WO2007029559A1 Ultrasonic sensor |
| 03/15/2007 | WO2007029506A1 Ultrasonic sensor |
| 03/15/2007 | US20070058827 Loudspeaker |
| 03/14/2007 | EP1763283A2 Piezoelectric device for generating acoustic signals |
| 03/14/2007 | EP1762119A1 Piezoelectric inertial transducer |
| 03/14/2007 | CN1929700A Piezoelectric device for generating acoustic signals |
| 03/14/2007 | CN1929699A Electro-acoustic transducer device |
| 03/14/2007 | CN1305350C Loudspeaker |
| 03/14/2007 | CN1304929C Acoustic wave touch detecting device |
| 03/13/2007 | US7190105 Sound or ultrasound sensor |
| 03/08/2007 | WO2007026736A1 Piezoelectric actuator, acoustic element, and electronic device |
| 03/08/2007 | DE19756462B4 Ultraschallwandler Ultrasonic transducer |
| 03/07/2007 | CN1926917A Piezoelectric acoustic element, acoustic device and portable terminal device |
| 03/07/2007 | CN1925695A Piezoelectric element and ultrasonic apparatus using the same |
| 03/06/2007 | US7187105 Transducer with coupled vibrators |
| 03/01/2007 | WO2007024045A1 Contact structure of a film-type audio-speaker |
| 03/01/2007 | US20070046145 Transmitting apparatus, sound sensor and autonomous traveling vehicle |
| 03/01/2007 | US20070044296 Method of manufacturing film bulk acoustic wave resonator |
| 02/28/2007 | EP1757244A1 Ultrasonic curing device |
| 02/28/2007 | EP1757159A1 Ultrasonic transducer and ultrasonic speaker using the same |
| 02/28/2007 | EP1665879B1 Electromechanical force transducer |
| 02/28/2007 | CN1922917A Microphone assembly with preamplifier and manufacturing method thereof |
| 02/28/2007 | CN1921705A Contact structure of a film-type audio-speaker |
| 02/28/2007 | CN1919145A Multiple level transmitter and method of transmitting |
| 02/28/2007 | CN1302259C Sensor using electro active curved helix and double helix |
| 02/27/2007 | US7183697 Actuator |
| 02/22/2007 | WO2007020409A1 Method of making an acoustic device |
| 02/22/2007 | US20070040478 Implants |
| 02/22/2007 | DE10341730B4 Vielseitige Transducer-Array-Konfigurationen Versatile transducer array configurations |
| 02/21/2007 | EP1755359A1 Supersonic transducer and manufacturing method thereof |
| 02/21/2007 | EP1754958A1 Ultrasonic flowmeter and ultrasonic transducer |
| 02/21/2007 | CN2872776Y Improved electric connector of loundspeaker |
| 02/20/2007 | US7181025 Ultrasound based parametric loudspeaker system |
| 02/20/2007 | US7180827 Surface acoustic antenna for submarines |
| 02/20/2007 | US7180225 Piezoelectric vibrator |
| 02/15/2007 | US20070033784 Method for producing actuator device, actuator device, liquid-jet head and liquid-jet apparatus |
| 02/15/2007 | DE102005039093A1 Ultraschallsensor, Entkopplungsmaterial für einen Ultraschallsensor und Verfahren zur Lackierung eines Ultraschallsensors Ultrasonic sensor, decoupling material for an ultrasonic sensor and method for coating an ultrasonic sensor |
| 02/15/2007 | DE102005037724A1 Piezoelectric ultrasonic converter e.g., for determining height of air spring, has two bulk regions of piezoelectric semiconductor material as converter body |
| 02/14/2007 | CN1913726A 超声波装置及其组装方法 Ultrasonic apparatus and methods of assembling |
| 02/14/2007 | CN1913725A Ultrasonic device and assembling method thereof |
| 02/08/2007 | WO2005044140A3 Noise attenuating headset |
| 02/08/2007 | US20070028433 SAW Filter Device and Method Employing Normal Temperature Bonding for Producing Desirable Filter Production and Performance Characteristics |
| 02/08/2007 | DE102006033693A1 Hindernisdetektor mit Ultraschallsensor The obstacle detection with ultrasonic sensor |
| 02/08/2007 | DE10137425B4 Piezoelektrisches Element A piezoelectric element |
| 02/06/2007 | US7174025 Resonant panel-form loudspeaker |
| 01/31/2007 | EP1747699A2 Low acceleration sensitivity microphone |
| 01/31/2007 | CN1906969A Ultrasonic sensor |
| 01/31/2007 | CN1905760A 压电式扬声器 Piezoelectric speaker |
| 01/30/2007 | US7170822 Laminated piezoelectric transducer and method of manufacturing the same |
| 01/29/2007 | CA2553861A1 Hybrid resonant structure |
| 01/25/2007 | WO2006052970A3 Flexural cylinder projector |
| 01/25/2007 | US20070019835 Wind noise suppression in directional microphones |
| 01/23/2007 | USRE39474 Method of manufacturing an ink jet recording head having reduced stress concentration near the boundaries of the pressure generating chambers |
| 01/23/2007 | US7167570 Piezo-electric speaker |
| 01/23/2007 | US7165647 Mechanical acoustic filter by erosion etching |
| 01/23/2007 | US7165299 Method of manufacturing an ink-jet recording head |
| 01/23/2007 | US7165298 Method of making a surface acoustic wave device |
| 01/18/2007 | WO2007008259A2 Implantable microphone with shaped chamber |
| 01/18/2007 | WO2007007942A1 Film-type audio-speaker |
| 01/18/2007 | US20070013270 Piezoelectric vibrator |
| 01/17/2007 | CN1898815A 压电换能器 Piezoelectric transducer |
| 01/17/2007 | CN1897764A Electroacoustic transducer using diaphragm and method for producing diaphragm |
| 01/17/2007 | CN1295033C Ultrasonic transducer and method of joining an ultrasonic transducer |
| 01/17/2007 | CN1294881C Systems for reducing secondary hot spots in a phased array focused ultrasound system |
| 01/16/2007 | US7162930 Ultrasonic sensor |
| 01/11/2007 | WO2007005036A2 Switching circuitry for reconfigurable arrays of sensor elements |
| 01/11/2007 | WO2007004665A1 Oscillatory wave detecting apparatus |
| 01/11/2007 | US20070009132 Implantable microphone with shaped chamber |
| 01/11/2007 | US20070007862 Ultrasonic vibrator and ultrasonic flowmeter employing the same |
| 01/11/2007 | US20070006434 Method for manufacturing a piezoelectric vibration device |
| 01/11/2007 | CA2614135A1 Vibration-wave detector |
| 01/10/2007 | EP1742505A1 Ultrasonic sensor |
| 01/10/2007 | CN1894999A Piezoelectric electro-acoustic converter |
| 01/10/2007 | CN1893738A Film-type audio-speaker |
| 01/10/2007 | CN1294075C Micro-machined ultrasonic transducer (MUT) array |
| 01/09/2007 | US7161280 Ultrasonic transducer and method of joining an ultrasonic transducer |
| 01/09/2007 | CA2469136C Sleeved ultrasonic transducer |
| 01/04/2007 | US20070000110 Method for treating PZT element, PZT micro-actuator, head gimbal assembly and disk drive unit with treated PZT micro-actuator |
| 01/04/2007 | DE102005029514A1 Gehörschutzstöpsel und Verfahren zu seiner Herstellung Earplugs and process for its preparation |
| 01/03/2007 | CN1293371C Ultrasonic sensor, method for mfg. same and ultrasonic flowmeter |
| 01/02/2007 | US7158647 Acoustic device |
| 01/02/2007 | US7156938 Method for making multi-layer ceramic acoustic transducer |
| 01/02/2007 | US7156506 Liquid charging method, liquid container, and method for manufacturing the same |
| 12/27/2006 | EP1576851B1 Acoustic actuator |
| 12/27/2006 | CN1886006A Sound-electricity conversion device, array-type ultrasonic transducer, and ultrasonic diagnostic apparatus |
| 12/26/2006 | US7154813 Pressure sensitive sensor for real-time reconfigurable sonar applications |
| 12/26/2006 | US7152290 Methods of manufacturing a piezoelectric actuator and a liquid jetting head |