| Patents for H04R 17 - Piezo-electric transducers; Electrostrictive transducers (7,213) |
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| 04/06/2005 | EP1520446A1 An acoustically active element formed in a multi-layer circuit-board structure, a method for forming acoustically active element in a multi-layer circuit-board structure, and a multi-layer circuit-board structure |
| 04/06/2005 | CN1604690A Electronic device |
| 04/06/2005 | CN1603903A Electric light device and electronic apparatus |
| 04/06/2005 | CN1603859A Ultrasonic sensor |
| 04/05/2005 | US6876127 Ultrasonic transceiver and ultrasonic clearance sonar using the same |
| 03/31/2005 | WO2005029912A1 Ultrasonic vibrator and ultrasonic flowmeter using the same |
| 03/31/2005 | WO2005029910A1 Ultrasonic probe |
| 03/31/2005 | US20050070801 Acoustic lens composition, ultrasonic probe, and ultrasonic diagnostic apparatus |
| 03/31/2005 | US20050069158 Packaged piezoelectric exciter module |
| 03/31/2005 | US20050069157 Conductive stub of sound exciter |
| 03/31/2005 | DE102004040474A1 Elektrisch leitfähige Anpassschichten und Verfahren Electrically conductive matching layers and methods |
| 03/30/2005 | EP1519362A2 Acoustic lens composition, and ultrasonic probe and ultrasonic diagnostic apparatus having such a lens |
| 03/30/2005 | EP1518442A1 Piezoelectric biological sounds monitor with printed circuit board |
| 03/30/2005 | CN1602118A Polarized zone control of silicon-base ferroelectric micro acoustic sensor and method of connecting electrode |
| 03/29/2005 | US6873090 Piezocomposite, ultrasonic probe for ultrasonic diagnostic equipment, ultrasonic diagnostic equipment, and method for producing piezocomposite |
| 03/24/2005 | WO2005027571A1 Electromechanical force transducer |
| 03/24/2005 | US20050061770 MEMS digital-to-acoustic transducer with error cancellation |
| 03/24/2005 | US20050061084 Ultrasonic transducer and method of joining an ultrasonic transducer |
| 03/23/2005 | CN1599647A Ultrasonic transducer and method of joining an ultrasonic transducer |
| 03/23/2005 | CN1596831A Ultrasonic probe and method for fabricating the probe |
| 03/17/2005 | US20050058311 Stereo headphone |
| 03/16/2005 | EP0976200A4 Vehicular loudspeaker system |
| 03/16/2005 | CN1596432A Systems and methods for controlling a phased array focused ultrasound system |
| 03/15/2005 | US6865785 Method for producing a piezoelectric speaker |
| 03/10/2005 | WO2004109749A3 Pyroelectric compound and method of its preparation |
| 03/09/2005 | CN1192442C Multilayer electronic part, its mfg. method, two-dimensionaly arrayed element packaging structure, and its mfg. method |
| 03/08/2005 | US6865277 Passenger vehicle |
| 03/08/2005 | US6865140 Mosaic arrays using micromachined ultrasound transducers |
| 03/08/2005 | US6864620 Matrix type actuator |
| 03/03/2005 | WO2005020631A1 Sound matching body, process for producing the same, ultrasonic sensor and ultrasonic wave transmitting/receiving system |
| 03/03/2005 | US20050046311 Method of manufacturing ultrasound transducer device having acoustic backing |
| 03/03/2005 | DE10325446B3 Verfahren zum Detektieren eines Fehlers bei einem Piezoaktor und Ansteuerschaltung für einen Piezoaktor, sowie Piezoaktorsystem A method for detecting a fault in a drive circuit for a piezoelectric actuator and piezoelectric actuator, and Piezoaktorsystem |
| 03/02/2005 | CN1589064A Contact type microphone |
| 03/01/2005 | US6862358 Piezo-film speaker and speaker built-in helmet using the same |
| 03/01/2005 | US6859984 Method for providing a matrix array ultrasonic transducer with an integrated interconnection means |
| 02/24/2005 | WO2004105176A3 Underwater antenna with electroacoustic transducers embedded in a casting compound |
| 02/24/2005 | US20050043628 Backing material for micromachined ultrasonic transducer devices |
| 02/24/2005 | US20050042424 Electrically conductive matching layers and methods |
| 02/24/2005 | DE10297480T5 Methode um ein piezoelektrisches Bauteil, herzustellen, piezoelektrisches Bauteil Ultraschallsonde, Ultraschalldiagnostikgerät, nicht zerstörendes Testgerät Method to produce a piezoelectric component, piezoelectric device ultrasound probe, ultrasonic diagnostic apparatus, non-destructive test apparatus |
| 02/22/2005 | US6857501 Microelectromaching systems (MEMS) using compatible polyxylylenes replacing silicon nitride in a high-temperature semiconductor process; increased sensitivity/flexibility; stress-relieving; hearing aids; telephones |
| 02/22/2005 | US6857172 Improving the flatness of ferroelectric thin film (<100 nm) by amorphous heating a coating of ferroelectric solution on a semiconductor substrate to coke/desolventize; repeating; crystalizing annealing to form an upper conductive layer |
| 02/17/2005 | WO2005015951A1 Case with insert terminal and piezoelectric electroacoustic transducer using this case, process for manufacturing case with insert terminal |
| 02/16/2005 | EP1506691A2 Loudspeaker |
| 02/16/2005 | EP1433357B1 Device for listening to voice and/or musical signals by means of cranial bone transmission |
| 02/16/2005 | EP1218115B1 Ultrasonic linear or curvilinear transducer and connection technique therefore |
| 02/16/2005 | CN1190107C Piezoelectric film sonic emitter |
| 02/15/2005 | US6856579 Broadband towed line array with spatial discrimination capabilities |
| 02/10/2005 | US20050032479 Signal classification methods for scanning receiver and other applications |
| 02/10/2005 | US20050029702 EAS marker and method of manufacturing same |
| 02/09/2005 | EP1505852A1 Piezoelectric speaker, speaker system employing it, and electronic apparatus employing piezoelectric speaker |
| 02/09/2005 | EP1504289A2 Ultrasound transducer |
| 02/09/2005 | EP1503871A1 Ultrasonic membrane transducer |
| 02/09/2005 | CN1578538A Integrated base and electret capacitor microphone using the same base |
| 02/09/2005 | CN1578537A Piezoelectric vibrator |
| 02/09/2005 | CN1575774A Piezoelectric transducer including a plurality of piezoelectric members |
| 02/08/2005 | US6851187 Method for manufacturing printer device |
| 02/03/2005 | WO2005009219A2 Method for making a spiral array ultrasound transducer |
| 02/03/2005 | US20050025328 Integrated base and electret condenser microphone using the same |
| 02/03/2005 | US20050023937 Piezoelectric vibrator |
| 02/03/2005 | US20050023934 Piezoelectric transducer including a plurality of piezoelectric members |
| 02/02/2005 | EP1503611A2 Integrated base and electret condenser microphone using the same |
| 02/02/2005 | CN2676155Y Cymbal sensor |
| 02/02/2005 | CN1575028A Exciting device |
| 02/01/2005 | US6850623 Parametric loudspeaker with improved phase characteristics |
| 01/27/2005 | US20050018870 Speaker for super-high frequency range reproduction |
| 01/27/2005 | US20050016278 Acoustic wave ice and water detector |
| 01/27/2005 | US20050015953 Method for making a spiral array ultrasound transducer |
| 01/26/2005 | EP1501331A1 Ultrasonic probe |
| 01/26/2005 | EP1501074A2 Piezoelectric vibrator |
| 01/26/2005 | EP0940059B1 Miniature silicon condenser microphone |
| 01/26/2005 | CN1571581A Piezoelectric electroacoustic transducer |
| 01/20/2005 | WO2005006809A1 Piezoelectric vibration generator and vibratory sound transmitter |
| 01/20/2005 | WO2005006271A2 Acoustic wave ice and water detector |
| 01/20/2005 | US20050015011 Motorized multiplane ultrasound probe |
| 01/20/2005 | US20050013455 MEMS digital-to-acoustic transducer with error cancellation |
| 01/20/2005 | US20050012429 Piezoelectric body manufacturing method, piezoelectric body, ultrasonic probe, ultrasonic diagnosing device, and nondestructive inspection device |
| 01/19/2005 | EP1498007A2 Wave flextensional shell configuration |
| 01/19/2005 | CN1568230A Frequency and amplitude apodization of transducers |
| 01/18/2005 | US6844660 Method for obtaining biometric data for an individual in a secure transaction |
| 01/13/2005 | WO2005004535A1 Panel type speaker |
| 01/13/2005 | US20050010111 Ultrasound method and apparatus for multi-line acquisition |
| 01/13/2005 | US20050005429 Micromachined piezoelectric microspeaker and fabricating method therof |
| 01/12/2005 | EP1496553A1 Composite piezoelectric body |
| 01/12/2005 | CN2671277Y Couductive embedding seat for unitary packed piazo-exciter |
| 01/12/2005 | CN1184474C Method and apparatus for providing dynamically variable time delay for ultrasound beamformer |
| 01/06/2005 | WO2005001812A1 Diaphragm for a tone generator assembly |
| 01/06/2005 | US20050002537 Resonant panel-form loudspeaker |
| 01/05/2005 | EP1493302A1 Sound or ultrasound sensor |
| 01/05/2005 | EP1005628A4 Ultrasonic transducer for high transduction in gases and method for non-contact ultrasound transmission into solid materials |
| 01/05/2005 | CN1183803C Anti-noise pickup and its sound signal processing method |
| 01/04/2005 | US6839445 Piezoelectric speaker |
| 01/04/2005 | US6838610 Arrangement of a rhythmic apparatus with a vehicle sound apparatus, rhythmic accompaniment method and electronic transducer |
| 12/30/2004 | DE10326159A1 Container fluid level and properties sensor uses type 1-3 composite piezoelectric ultrasonic transducers with integrated processing circuit on conducting membrane curved to match wall |
| 12/29/2004 | WO2004095883A8 Ultrasonic energy system and method including a ceramic horn |
| 12/29/2004 | EP1489972A1 Multiple scan-plane ultrasound imaging of objects |
| 12/29/2004 | CN1182755C Piezoelectric electroacoustic transducer |
| 12/29/2004 | CN1182598C Aerogels, Piezoelectric device and uses thereof |
| 12/23/2004 | US20040260181 Repolarization system which repolarizes transducer used in ultrasonic probe |
| 12/22/2004 | EP1171919A4 Multi-piezoelectric layer ultrasonic transducer for medical imaging |
| 12/22/2004 | CN1181704C Parametric loudspeaker with electro-acoustical disphragm transducer |