| Patents for H04R 17 - Piezo-electric transducers; Electrostrictive transducers (7,213) |
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| 07/16/2002 | US6419633 2D ultrasonic transducer array for two dimensional and three dimensional imaging |
| 07/16/2002 | US6418960 Ultrasonic enhancement for solvent purge of a liquid delivery system |
| 07/16/2002 | CA2230376C Piezo speaker for improved passenger cabin audio systems |
| 07/11/2002 | WO2002054827A2 Wideband transducer |
| 07/11/2002 | WO2002054379A2 Annular array |
| 07/11/2002 | US20020090517 Ferroelectric relaxor polymers |
| 07/11/2002 | US20020089262 Cylindrical transducer apparatus |
| 07/10/2002 | CN1358400A Panel driver |
| 07/04/2002 | WO2002052544A2 Multidimensional array and fabrication thereof |
| 07/03/2002 | EP1218115A2 Ultrasonic linear or curvilinear transducer and connection technique therefore |
| 07/02/2002 | US6413575 Method of applying a matching layer to a transducer |
| 06/27/2002 | WO2002051205A1 Condenser microphone assembly |
| 06/27/2002 | WO2002049775A1 Method for making a multielement acoustic probe using a metallised and ablated polymer as ground plane |
| 06/26/2002 | EP1216602A2 Mems digital-to-acoustic transducer with error cancellation |
| 06/26/2002 | CN2497503Y Multi-layer piezoelectric-diaphragm voice head |
| 06/26/2002 | CN1356015A Acoustic device |
| 06/25/2002 | US6411015 Multiple piezoelectric transducer array |
| 06/25/2002 | US6411014 Cylindrical transducer apparatus |
| 06/20/2002 | WO2002019388A3 Class v flextensional transducer with directional beam patterns |
| 06/20/2002 | US20020076076 Condenser microphone assembly |
| 06/13/2002 | WO2002047433A2 Loudspeaker systems |
| 06/13/2002 | WO2001058337A3 Method and apparatus combining diagnostic ultrasound with therapeutic ultrasound to enhance thrombolysis |
| 06/13/2002 | US20020070638 Inertial/audio unit and construction |
| 06/13/2002 | DE10039401C2 Mindestens teilweise implantierbares Hörsystem At least partially implantable hearing |
| 06/12/2002 | CN1353297A Ultrasonic transducer |
| 06/11/2002 | US6404894 Packaging |
| 06/11/2002 | US6404107 Packaged strain actuator |
| 06/11/2002 | US6401316 Method for manufacturing printer device |
| 06/06/2002 | WO2002045074A1 Ultrasonic transducer and ultrasonic flowmeter |
| 06/06/2002 | WO2002045073A2 Systems and methods for controlling a phased array focused ultrasound system |
| 06/06/2002 | WO2002022917A3 Single crystals of lead magnesium niobate-lead titanate |
| 06/06/2002 | US20020067841 Loudspeakers |
| 06/06/2002 | US20020067840 Piezo-electric speaker |
| 06/06/2002 | US20020066524 Piezoelectric film type actuator, liquid discharge head, and method of manufacturing the same |
| 06/06/2002 | DE10058102A1 Elektrodynamischer Biegemomententreiber Electro-dynamic bending moment driver |
| 06/05/2002 | CN1352358A Seal sensor process |
| 06/04/2002 | US6399870 Musical instruments incorporating loudspeakers |
| 05/30/2002 | WO2002043434A2 Electrodynamic bending moment driver |
| 05/30/2002 | WO2001045550B1 Ultrasound transducers for imaging and therapy |
| 05/30/2002 | US20020063496 Actuator device |
| 05/29/2002 | EP1208610A1 Piezoelectric bending transducer |
| 05/29/2002 | DE10138210A1 Läutwerk Ringtone |
| 05/28/2002 | US6396199 Ultrasonic linear or curvilinear transducer and connection technique therefore |
| 05/28/2002 | US6396198 Wave transmission-reception element for use in ultrasound probe, method for manufacturing the wave transmission-reception element and ultrasound probe incorporating the transmission-reception element |
| 05/28/2002 | US6396197 Piezoelectric speaker |
| 05/28/2002 | US6393681 PZT microactuator processing |
| 05/28/2002 | CA2313431C System and method for monitoring pressure, flow and constriction parameters of plumbing and blood vessels |
| 05/23/2002 | WO2002040184A2 Multidimensional ultrasonic transducer arrays |
| 05/23/2002 | US20020062079 Composite type ultrasonic probe and a method of manufacturing the same |
| 05/22/2002 | EP1206856A1 Sound communication system between a portable unit and a communication terminal |
| 05/22/2002 | EP1206729A1 System for automatically setting a portable object with a clock function |
| 05/22/2002 | EP0659032B1 Electronic component |
| 05/22/2002 | CN1350767A Transducer driver |
| 05/21/2002 | US6390985 Impedance matching transducers |
| 05/16/2002 | WO2002038288A1 Surface with varying electrical or magnetic properties |
| 05/16/2002 | DE10139160A1 Sensorarray und Sende-Empfangs-Gerät Sensor array and transmit-receive device |
| 05/14/2002 | US6389140 Ceramic piezoelectric type microphone |
| 05/09/2002 | US20020055754 Utrasonic probe device with rapid attachment and detachment means |
| 05/09/2002 | US20020053857 Piezoelectric identification device and applications thereof |
| 05/07/2002 | US6384550 Speaker and drive device therefor |
| 05/07/2002 | US6384516 Hex packed two dimensional ultrasonic transducer arrays |
| 05/07/2002 | US6383141 Ultrasound transducer |
| 05/02/2002 | US20020050769 Electroactive polymer electrodes |
| 05/01/2002 | CN1084001C Control circuit for piezoelectric vibrator and watch using said circuit |
| 04/30/2002 | US6378182 Method of applying a matching layer to a transducer |
| 04/25/2002 | WO2002032315A1 Intravascular ultrasonic catheter arrangements |
| 04/25/2002 | WO2001054450A3 Transducer in particularly for use in acoustic devices |
| 04/25/2002 | US20020047499 Packaged strain actuator |
| 04/24/2002 | EP1199906A1 Aerial ultrasonic sensor |
| 04/24/2002 | EP1198301A1 Impedance matching transducers |
| 04/24/2002 | CN2488246Y Internal conducting sensor |
| 04/24/2002 | CN1346582A Hearing and compatible piezoelectric speaker |
| 04/23/2002 | US6376971 Electroactive polymer electrodes |
| 04/23/2002 | US6376967 Inertial/audio unit and construction |
| 04/18/2002 | US20020045829 Pulse detecting device and ultrasound diagnostic apparatus |
| 04/18/2002 | US20020043896 Sensor array and transmitting/receiving device |
| 04/17/2002 | EP1197121A2 Piezoelectric acoustic alarm |
| 04/17/2002 | EP1197120A2 Bending wave panel speaker and method of driving such a speaker |
| 04/11/2002 | US20020042577 Frequency and amplitude apodization of transducers |
| 04/11/2002 | US20020042572 Ultrasonic diagnostic apparatus |
| 04/11/2002 | US20020041694 Transducer |
| 04/10/2002 | EP1194070A1 Improved volumetric ultrasound imaging with a thinned array |
| 04/09/2002 | US6370086 Ultrasound sensor for distance measurement |
| 04/09/2002 | US6367132 Method of making a print head |
| 04/04/2002 | WO2001078060A3 Rhythmic apparatus, rhythmic accompaniment method and electronic transducer |
| 04/03/2002 | EP1193777A2 Method of manufacturing piezoelectric elements using sacrificial material |
| 04/03/2002 | CN1343438A 振动激励器 Vibration exciter |
| 03/28/2002 | WO2001071648A3 Piezoelectric identification device and applications thereof |
| 03/28/2002 | US20020036954 Ultrasonic sensor having diaphragm |
| 03/28/2002 | US20020036447 Piezoelectric element and method of manufacturing same |
| 03/27/2002 | CN2483927Y Piezoelectric receiver-transmitter |
| 03/21/2002 | WO2002022917A2 Single crystals of lead magnesium niobate-lead titanate |
| 03/21/2002 | WO2001086695A3 Multiple piezoelectric transducer array |
| 03/21/2002 | CA2421753A1 Single crystals of lead magnesium niobate-lead titanate |
| 03/20/2002 | EP1188348A2 Microfabricated transducer and method for making the same |
| 03/20/2002 | EP0823111B1 Apparatus for ultrasound testing using liquid couplant |
| 03/19/2002 | US6359991 Greetings or the like card |
| 03/19/2002 | US6359371 Inertial/audio unit and construction |
| 03/14/2002 | WO2002021881A1 Display window having voice input/output function |
| 03/14/2002 | WO2001080708A3 Systems and methods for reducing secondary hot spots in a phased array focused ultrasound system |