Patents
Sitemap › H04 - Electric communication technique › H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers; Deaf-aid sets; Public address systems › H04R 17 - Piezo-electric transducers; Electrostrictive transducers
Patents for H04R 17 - Piezo-electric transducers; Electrostrictive transducers (7,213)
06/2005
06/28/2005US6912288 Piezoelectric electroacoustic transducer and manufacturing method of the same
06/28/2005US6911107 Piezoelectric film type actuator, liquid discharge head, and method of manufacturing the same
06/23/2005US20050135648 Mechanical acoustic filter by erosion etching
06/23/2005US20050134574 Piezoelectric transducer
06/23/2005US20050134150 Piezo-electric resonator and manufacturing method thereof
06/22/2005EP1543638A1 Data transmission system and method using sound waves
06/21/2005US6909222 Piezoelectric actuator, and timepiece and portable equipment having the same
06/16/2005US20050129267 Resonant panel-form loudspeaker
06/16/2005US20050129261 Electronic instrument
06/16/2005US20050129257 Acoustic vibration generating element
06/15/2005EP1542499A2 Acoustic vibration generating element
06/15/2005EP1542064A1 Liquid crystal display device having sound output function and the like and electronic device using the same
06/15/2005EP1227763A4 Split beam transducer
06/15/2005CN1628485A Microphone equipped with a range finder
06/15/2005CN1627864A Acoustic vibration generating element
06/15/2005CN1627545A Method of manufacturing piezoelectric ceramic device
06/09/2005WO2005053357A1 Piezoelectric microspeaker with corrugated diaphragm
06/09/2005WO2005053356A1 Loudspeaker
06/09/2005US20050120528 Method of manufacturing piezoelectric ceramic device
06/09/2005CA2546821A1 Electronic article surveillance marker assembly
06/08/2005CN1625919A Speaker for super-high frequency range reproduction
06/08/2005CN1625189A Ear-weared sound information phone
06/07/2005US6904154 Acoustic device
06/03/2005CA2489840A1 Convex folded shell projector
06/02/2005US20050116585 Actuator
06/02/2005US20050115039 Low temperature sintering of lead titanate, lead zirconate and lead zinc niobate; forming multilayer material having stable insulation resistance under high temperature and humidity conditions
06/02/2005US20050115038 Method for manufacturing a piezoelectric resonator
06/02/2005DE102004054293A1 Verfahren zur Herstellung eines mehrschichtigen keramischen akustischen Wandlers A process for producing a multilayer ceramic transducer
06/01/2005EP1535350A2 Low acceleration sensitivity mounting structures for crystal resonators
06/01/2005EP1208610B1 Piezoelectric bending transducer
06/01/2005CN1622359A Method of producing piezoelectric ceramic device
05/2005
05/31/2005US6899761 Single crystals of lead magnesium niobate-lead titanate
05/31/2005US6899682 Intravascular ultrasound transducer assembly having a flexible substrate and method for manufacturing such assembly
05/26/2005WO2005048645A2 Method and apparatus for tooth bone conduction microphone
05/26/2005US20050111687 Noise attenuating headset
05/26/2005US20050111678 Electro-optical device and electronic apparatus
05/25/2005EP1531729A1 Method of generating a predetermined wave field
05/25/2005EP1031229B1 Method for transmitting acoustic signals from a memory or chip card, and card for implementing said method
05/25/2005DE202005003537U1 Adhäsives Mikrofon Adhesive microphone
05/25/2005DE202005001857U1 Acoustic signal appliance with piezoelectric sound source, has membrane partly forming housing wall
05/25/2005CN1620195A Parametric loudspeaker with electro-acoustical disphragm transducer
05/25/2005CN1618879A Acoustic lens composition, and ultrasonic probe and ultrasonic diagnostic apparatus
05/24/2005US6897601 Piezoelectric element and an oscillation transducer with a piezoelectric element
05/19/2005WO2005044140A2 Noise attenuating headset
05/19/2005US20050105747 Card sound device and electronic apparatus having same
05/19/2005US20050102807 Matrix type actuator
05/19/2005DE4325028B4 Ultraschall-Wandlereinrichtung mit einem ein- oder zweidimensionalen Array von Wandlerelementen Ultrasonic transducer means with a one- or two-dimensional array of transducer elements
05/18/2005EP1531288A2 Power transmission device having a torque converter with a lockup clutch and lockup control method for torque converter
05/18/2005CN1617633A Frequency lowering method for plane piezoelectric horn actuator
05/18/2005CN1616854A Power transmission device and lockup control method for torque converter
05/18/2005CN1202645C Piezoelectric electroacoustic converter
05/18/2005CN1202509C Piezoelectric acoustic assembly
05/17/2005US6894426 Ultrasonic probe
05/17/2005US6894423 Piezoelectric electroacoustic transducer
05/12/2005WO2005031274A3 Sonic or ultrasonic transducer
05/12/2005US20050101434 Power transmission device having a torque converter with a lockup clutch and lockup control method for torque converter
05/12/2005US20050099097 Method for making multi-layer ceramic acoustic transducer
05/12/2005US20050099096 Method for making multi-layer ceramic acoustic transducer
05/12/2005US20050097716 Method of manufacturing piezoelectric device and ferroelectric device, droplet ejection head, and electronic equipment
05/11/2005EP1529315A2 Handheld device having ultrasonic transducer for axial transmission of acoustic signals
05/11/2005CN1615670A Piezoelectric body manufacturing method, piezoelectric body, ultrasonic probe, ultrasonic diagnosing device, and nondestructive inspection device
05/06/2005WO2005041616A1 Loudspeaker
05/05/2005US20050096546 Optimized switching configurations for reconfigurable arrays of sensor elements
05/05/2005US20050096542 Ultrasound transducers for imaging and therapy
05/05/2005US20050094490 Integrated interface electronics for reconfigurable sensor array
05/04/2005EP1528608A2 Bending actuator having beam-deflection limiting structure
05/04/2005EP1526825A1 Device and method for ultrasound wound debridement
05/04/2005EP0873668B1 Implantable hearing aid
05/04/2005CN2697778Y Piezoelectric transducer for bridge of strained instrument
05/04/2005CN1200525C Supersonic-wave emitter/receiver
05/03/2005US6888947 Piezoelectric electroacoustic transducer
05/03/2005US6887205 Pulse detecting device and ultrasound diagnostic apparatus
04/2005
04/28/2005US20050089176 Parametric loudspeaker with improved phase characteristics
04/27/2005EP1526757A1 Composite piezoelectric vibrator
04/27/2005EP1182971A4 Ultrasonic transducer with improved compressive loading
04/27/2005EP1173100A4 Apparatus and method for tuning ultrasonic transducers
04/27/2005CN1610979A Piezoelectric devices
04/27/2005CN1610253A Method for producing piezoelectric resonator
04/26/2005US6885753 Communication device using bone conduction
04/26/2005CA2009522C Method and device for localization and focusing of acoustic waves in tissues
04/21/2005US20050082944 Electromagnetic piezoelectric acoustic sensor
04/21/2005US20050081636 Two dimensional phased arrays for volumetric ultrasonic inspection and methods of use
04/20/2005EP1524881A1 Microphone
04/20/2005EP1524519A1 Two dimensional phased arrays for volumetric ultrasonic inspection and methods of use
04/20/2005EP1523274A2 Ultrasonic transducer for electronic devices
04/20/2005CN1198480C Acoustic device
04/14/2005WO2005034576A1 Ultrasonic transducer and ultrasonic treatment device employing it
04/14/2005WO2005034575A2 Module for the production of transmitter panels and sound receivers, panel thus produced
04/14/2005WO2005006271A3 Acoustic wave ice and water detector
04/14/2005DE10344741A1 Schall- oder Ultraschallwandler Sonic or ultrasonic transducer
04/13/2005EP1523213A2 Calotte for a signal generator
04/13/2005CN1197415C Surface acoustic wave device
04/13/2005CN1196446C Ultrasonic image coherent filtering method and device
04/07/2005WO2005032212A1 A microphone component and a method for its manufacture
04/07/2005WO2005032211A1 Ultrasonic sensor and method of manufacturing the same
04/07/2005WO2005031274A2 Sonic or ultrasonic transducer
04/07/2005US20050075573 System and method for actively cooling transducer assembly electronics
04/07/2005US20050075572 Focusing micromachined ultrasonic transducer arrays and related methods of manufacture
04/07/2005US20050074134 Actuator assembly
04/07/2005US20050072352 Single crystals of lead magnesium niobate-lead titanate
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