H04R 17 - Piezo-electric transducers; Electrostrictive transducers

Patents for H04R 17 - Piezo-electric transducers; Electrostrictive transducers (7,213)
12/2004
12/21/2004	US6833656 Electro active devices
12/16/2004	WO2004109749A2 Pyroelectric compound and method of its preparation
12/16/2004	WO2003003045A3 Ultrasound transducer
12/16/2004	US20040251784 Laminated structure and method of manufacturing the same
12/16/2004	US20040251780 Advanced ceramics in ultrasonic transducerized devices
12/15/2004	CN1180658C Piezoelectric electroacoustic tranducer and mfg. method thereof
12/14/2004	US6831985 Piezoelectric speaker
12/14/2004	US6831394 Backing material for micromachined ultrasonic transducer devices
12/09/2004	US20040247143 Device for listening to voice and/or musical signals by means of cranial bone transmission
12/09/2004	US20040246109 Exciting device
12/09/2004	US20040244167 Piezoelectric/electrostrictive film type actuator and method for manufacturing the same
12/08/2004	EP1484020A1 Motorized multiplane transesophageal probe with coupling fluid
12/07/2004	US6829131 MEMS digital-to-acoustic transducer with error cancellation
12/07/2004	US6826816 Multi-layer multi-dimensional transducer and method of manufacture
12/02/2004	WO2004105427A1 Piezoelectric microphone
12/02/2004	WO2004105176A2 Underwater antenna with electroacoustic transducers embedded in a casting compound
12/02/2004	US20040240699 Microphone
12/02/2004	US20040239212 Matrix type ultrasonic probe and method of manufacturing the same
12/02/2004	US20040237676 Sensor using electro active curved helix and double helix
12/02/2004	DE102004023469A1 Ultraschallsensor Ultrasonic sensor
12/01/2004	EP1482369A1 Method and device for vibration control
12/01/2004	CN2660830Y Underwater speaker
12/01/2004	CN1551040A Coordinate input device with vibrating function
12/01/2004	CN1550968A Acoustic wave touch detecting device
12/01/2004	CN1550216A System for repolarizing transducers in an ultrasonic probe
11/2004
11/30/2004	US6825593 Piezoelectric type electric acoustic converter
11/25/2004	WO2004103014A2 Advanced ceramics in ultrasonic transducerized devices
11/25/2004	US20040231150 Gating grid and method of making same
11/25/2004	DE102004018301A1 Piezoelektrischer elektroakustischer Wandler A piezoelectric electro-acoustic transducer
11/25/2004	DE102004007247A1 Piezoelektrischer akustischer Wandler A piezoelectric transducer
11/24/2004	EP1480489A2 Exciting device for producing sound
11/23/2004	US6822374 Multilayer piezoelectric structure with uniform electric field
11/23/2004	US6820313 Method of manufacturing an ultrasound transducer and ultrasound transducer obtained by means of the method
11/18/2004	US20040228216 Multiply resonant wideband transducer apparatus
11/18/2004	US20040226378 Ultrasonic sensor
11/17/2004	EP1477237A2 Low profile acoustic sensor array and sensors with pleated transmission lines and related methods
11/17/2004	EP1476080A1 Ultrasonic treatment and imaging of adipose tissue
11/17/2004	EP0847661B2 Acoustic device
11/17/2004	CN1547869A Loudspeaker
11/11/2004	WO2004098234A1 Ultrasonic sensor
11/11/2004	WO2004047192A3 Electro-active actuator
11/11/2004	WO2003061334A3 Wave flextensional shell configuration
11/11/2004	DE102004011751A1 Piezoelektrischer elektroakustischer Wandler und sein Herstellungsverfahren A piezoelectric electro-acoustic transducer and its manufacturing method
11/10/2004	EP1475988A1 Card sound device and electronic apparatus having same
11/10/2004	EP1474797A2 Surface acoustic antenna for submarines
11/10/2004	CN1545822A 麦克风 Microphone
11/10/2004	CN1545612A Sensor using electro active curved helix and double helix
11/10/2004	CN1545397A Cylindrical ultrasound receiver and transceiver formed from piezoelectric film
11/04/2004	WO2004095883A1 Ultrasonic energy system and method including a ceramic horn
11/04/2004	WO2004095758A2 Signal classification methods for scanning receiver and other applications
11/04/2004	US20040220463 Ultrasonic probe and ultrasonic transmitting and receiving apparatus using the same
11/04/2004	US20040218769 Package of surface-mountable electronic component
11/04/2004	DE19531360B4 Vorrichtung und Verfahren zum Steuern der Empfindlichkeit von Wandlern Apparatus and method for controlling the sensitivity of transducers
11/02/2004	US6812621 Multiplexer for a piezo ceramic identification device
11/02/2004	US6811385 Acoustic micro-pump
10/2004
10/28/2004	WO2004057912A3 Acoustic actuators
10/28/2004	US20040215079 Ultrasonic probe
10/27/2004	EP1471769A2 Surface-mountable electronic component
10/27/2004	EP1471768A1 Speaker for super-high frequency range reproduction
10/27/2004	CN1541026A Surface mounting elemctronic element encapsulation
10/27/2004	CN1173599C Digital electro-acoustic transducer
10/27/2004	CN1172632C Sound pickup sensor
10/21/2004	US20040206183 Ultrasonic probe and method for the fabrication thereof
10/21/2004	US20040205949 Piezoelectric electroacoustic transducer
10/20/2004	EP1468458A2 Cylindrical ultrasound transceivers
10/20/2004	EP1050190B1 Active acoustic devices comprising panel members
10/19/2004	US6806622 Impact-reinforced piezocomposite transducer array
10/19/2004	US6804885 Method for manufacturing printer device
10/14/2004	WO2004016035A3 Piezoelectric loudspeaker
10/14/2004	US20040203503 Portable electronic apparatus
10/14/2004	US20040202344 Method and apparatus for tooth bone conduction microphone
10/14/2004	US20040202338 Loudspeaker
10/14/2004	US20040201342 Lamp device
10/14/2004	US20040201331 Polymer film composite transducer
10/14/2004	US20040201326 Piezoelectric acoustic transducer
10/14/2004	US20040201324 Matrix type piezoelectric/electrostrictive device and manufacturing method thereof
10/14/2004	US20040200056 Ultrasonic transducer, method for manufacturing ultrasonic transducer, and ultrasonic flowmeter
10/13/2004	CN1536931A Piezoelectric electroacoustic converter and its mfg. method
10/13/2004	CN1536930A Piezoelectric electroacoustic transducer
10/12/2004	US6804363 Electroacoustic transducer
10/12/2004	US6803701 Matrix type ultrasonic probe and method of manufacturing the same
10/07/2004	US20040195941 Piezoelectric electro-acoustic transducer and manufacturing method of the same
10/06/2004	CN1535243A Micro-machined ultrasonic transducer (MUT) array
10/06/2004	CN1170457C Electrosonic energy transducer
09/2004
09/30/2004	US20040190733 Ultrasonic energy system and method including a ceramic horn
09/30/2004	US20040190377 Method and means for isolating elements of a sensor array
09/30/2004	US20040189153 Piezoelectric resonator element of cyrstallographic point group 32
09/30/2004	US20040189151 Mechanical-to-acoustical transformer and multi-media flat film speaker
09/28/2004	US6798717 High density pixel array
09/28/2004	US6798059 Multilayer electronic part, its manufacturing method, two-dimensionally arrayed element packaging structure, and its manufacturing method
09/28/2004	US6796637 Piezoelectric/electrostrictive film type actuator and method for manufacturing the same
09/23/2004	WO2004082331A1 Built-in device for a mobile terminal
09/23/2004	US20040184633 Condenser microphone assembly
09/23/2004	US20040183407 Piezoelectric electroacoustic transducer
09/22/2004	CN1531467A System for attaching acoustic element to integrated circuit
09/21/2004	US6795561 Panel drive
09/21/2004	US6794799 Piezoelectric electroacoustic transducer
09/21/2004	US6794723 Matrix type piezoelectric/electrostrictive device and manufacturing method thereof
09/16/2004	US20040181117 Piezoelectric film transducer
09/16/2004	DE102004011193A1 Mosaikarrayanordnung, die mikrobearbeitete Ultraschalltransducer nutzt Mosaic array uses the micromachined ultrasonic transducers

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