| Patents for H04R 17 - Piezo-electric transducers; Electrostrictive transducers (7,213) |
|---|
| 03/10/2004 | EP1396172A2 Wideband transducer |
| 03/10/2004 | CN1481284A Method for making multielement acoustic probe using metallised and ablated polymer as ground plane |
| 03/09/2004 | US6703767 PZT microactuator |
| 03/04/2004 | WO2004019652A2 Loudspeaker |
| 03/04/2004 | US20040042628 Piezo-electric speaker |
| 03/04/2004 | US20040041497 Piezoelectric sounding body and piezoelectric electroacoustic transducer using the same |
| 03/04/2004 | US20040040132 Piezoelectric composite apparatus and a method for fabricating the same |
| 03/04/2004 | DE10218936B4 Verfahren zur Herstellung elektromechanischer Wandler A process for producing an electromechanical transducer |
| 03/04/2004 | DE10203387B4 Ultraschall-Hindernisdetektor und Verfahren zu dessen Zusammenbau Ultrasonic obstacle detector and method for its assembly |
| 03/03/2004 | EP1395083A2 A piezo-electric speaker |
| 03/03/2004 | EP1393821A1 Ultrasonic transducer |
| 03/03/2004 | EP1393439A1 Piezoelectric resonator element of crystallographic point group 32 |
| 03/03/2004 | CN1479917A Ultrasonic transducer and ultrasonic flowmeter |
| 03/03/2004 | CN1478439A Compound piezoelectrics |
| 02/26/2004 | US20040039312 Ultrasonic treatment and imaging of adipose tissue |
| 02/25/2004 | EP1222735B1 Interface acoustic wave filter, especially for wireless connections |
| 02/25/2004 | CN1478370A Condenser microphone assembly |
| 02/24/2004 | US6695782 Ultrasonic probe device with rapid attachment and detachment means |
| 02/19/2004 | WO2004016035A2 Piezoelectric loudspeaker |
| 02/19/2004 | WO2004014284A1 Device and method for ultrasound wound debridement |
| 02/18/2004 | CN1476598A Acoustic imaging system with non-focusing lens |
| 02/18/2004 | CN1139299C Piezoelectric electro-acoustic transducer |
| 02/17/2004 | US6693849 Piezoelectric audio transducer |
| 02/17/2004 | US6692672 EAS marker and method of manufacturing same |
| 02/12/2004 | WO2003103018A3 Portable electronic apparatus |
| 02/12/2004 | US20040030254 Device and method for ultrasound wound debridement |
| 02/12/2004 | US20040029530 Waterproof electroacoustic transducer and portable electronic device provided with the same |
| 02/12/2004 | US20040025342 Surface with varying electrical or magnetic properties |
| 02/10/2004 | US6689066 Ultrasonic probe |
| 02/05/2004 | US20040021402 Low acceleration sensitivity mounting structures for crystal resonators |
| 02/04/2004 | CN1472987A Piezo loudspeaker device |
| 01/29/2004 | WO2004010732A1 Microphone |
| 01/29/2004 | WO2004010730A2 Ultrasonic transducer for electronic devices |
| 01/29/2004 | WO2004010592A2 Handheld device having ultrasonic transducer for axial transmission of acoustic signals |
| 01/29/2004 | WO2003100876A3 Low acceleration sensitivity mounting structures for crystal resonators |
| 01/29/2004 | US20040017132 Multiplexer for a piezo ceramic identification device |
| 01/29/2004 | US20040017131 Piezoelectric actuator, and timepiece and portable equipment having the same |
| 01/29/2004 | US20040017129 Electro active devices |
| 01/29/2004 | US20040016298 Method for obtainig biometric data for an individual in a secure transaction |
| 01/29/2004 | DE10153638B4 Ultraschallsensor zur Entfernungsmessung Ultrasound sensor for measuring distance |
| 01/28/2004 | EP1384525A2 Composite piezoelectric transducer and method of fabricating the same |
| 01/28/2004 | EP1038290B1 Ultrasonic transducer with a cup-shaped support |
| 01/22/2004 | US20040012308 Piezo-electric bending transducer |
| 01/22/2004 | US20040012307 Ultrasonic transducer and method of manufacturing the same |
| 01/22/2004 | DE10328840A1 Mehrdimensionale Transduceranordnungen und Verfahren zu deren Herstellung Multi-dimensional transducer assemblies, and methods for their preparation |
| 01/21/2004 | CN1135903C 压电扬声器 Piezoelectric speaker |
| 01/21/2004 | CN1135145C Piezoelectric sensor for measuring welding parameter |
| 01/14/2004 | CN1467974A Piezoelectric electroacoustic convertor |
| 01/13/2004 | US6677034 Aerogels, piezoelectric devices, and uses therefor |
| 01/13/2004 | US6675450 Method of manufacturing and mounting electronic devices to limit the effects of parasitics |
| 01/08/2004 | WO2004004411A1 Piezoelectric biological sound monitor with printed circuit board |
| 01/08/2004 | WO2003009219A3 Electronic article comprising loudspeaker & touch pad |
| 01/08/2004 | DE10325091A1 Piezoelektrischer elektroakustischer Wandler A piezoelectric electro-acoustic transducer |
| 01/08/2004 | CA2490438A1 Piezoelectric biological sound monitor with printed circuit board |
| 01/07/2004 | EP1378014A2 Electromechanical converter comprising at least one piezoelectric element |
| 01/06/2004 | US6674291 Method and apparatus for determining and/or improving high power reliability in thin film resonator devices, and a thin film resonator device resultant therefrom |
| 01/06/2004 | US6674219 Piezoelectric speaker |
| 01/06/2004 | US6674216 Ultrasound portable tubular transducer |
| 01/06/2004 | US6673021 Ultrasound probe for ultrasound examination system |
| 01/02/2004 | EP1374635A1 Bone conduction hearing aid |
| 01/02/2004 | EP1373973A1 Display substrate with an integrated acoustic transducer |
| 01/01/2004 | US20040002656 Multi-dimensional transducer arrays and method of manufacture |
| 12/31/2003 | WO2004002191A1 A transducer for bioacoustic signals |
| 12/30/2003 | US6671380 Acoustic transducer with spiral-shaped piezoelectric shell |
| 12/30/2003 | US6671360 Intercom system for a building or apartment house |
| 12/24/2003 | WO2003011749A3 Micro-machined ultrasonic transducer (mut) array |
| 12/24/2003 | WO2002096508A9 Ultrasound feedback in medically-treated patients |
| 12/24/2003 | WO2002054827A3 Wideband transducer |
| 12/24/2003 | CN1132499C Speaker |
| 12/23/2003 | US6666825 Ultrasound transducer for improving resolution in imaging system |
| 12/18/2003 | WO2003105527A1 Piezoelectric transducer systems |
| 12/18/2003 | US20030230144 Ultrasonic transducer |
| 12/17/2003 | CN1462567A Electroacoustic transducer |
| 12/16/2003 | US6662448 Method of fabricating a micro-electro-mechanical fluid ejector |
| 12/16/2003 | US6662418 Patterning lower electrode, piezoelectric/ electrostrictive layer, and upper electrode at same time by light exposure |
| 12/16/2003 | CA2214462C Passive acousto-optic modulator |
| 12/11/2003 | WO2003103334A1 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 |
| 12/11/2003 | WO2003103018A2 Portable electronic apparatus |
| 12/11/2003 | WO2003101302A1 Method of generating a predetermined wave field |
| 12/11/2003 | US20030227826 Multimode synthesized beam transduction apparatus |
| 12/09/2003 | US6661162 Piezoelectric resonator and method of producing the same |
| 12/09/2003 | US6661161 Piezoelectric biological sound monitor with printed circuit board |
| 12/04/2003 | WO2003100876A2 Low acceleration sensitivity mounting structures for crystal resonators |
| 12/04/2003 | WO2003061853A3 Cylindrical ultrasound transceivers |
| 12/04/2003 | US20030222942 Piezoelectric/electrostrictive film type actuator and method for manufacturing the same |
| 12/03/2003 | EP1366489A1 Floor mat with voice-responsive display |
| 12/03/2003 | EP1366390A2 Method and device for vibration control |
| 12/03/2003 | CN2590320Y Ground buried acoustic pick-up |
| 12/02/2003 | US6658126 Hearing aid compatible piezoelectric speaker |
| 11/26/2003 | CN1459043A Display substrate with integrated acoustic transducer |
| 11/25/2003 | US6654316 Single-sided electro-mechanical transduction apparatus |
| 11/25/2003 | US6653762 Piezoelectric type electric acoustic converter |
| 11/25/2003 | US6653760 Ultrasonic transducer using third harmonic frequency |
| 11/20/2003 | WO2002096507A3 Guiding ultrasound end effector for medical treatment |
| 11/20/2003 | US20030216646 Multiple scan-plane ultrasound imaging of objects |
| 11/20/2003 | US20030214199 Electroactive polymer devices for controlling fluid flow |
| 11/19/2003 | EP1362497A1 Microphone equipped with a range finder |
| 11/18/2003 | US6650759 Speaker |
| 11/18/2003 | CA2136242C Underwater acoustic antenna having a surface sensor |
| 11/13/2003 | WO2003092916A1 Ultrasonic membrane transducer |