| Patents for G10K 9 - Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers (3,562) |
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| 03/02/2005 | CN1588534A Permanent magnetic multiple sound automobile horn |
| 02/24/2005 | DE102004036357A1 Verfahren zur Herstellung eines dynamischen Lautsprechers A method for producing a dynamic speaker |
| 02/23/2005 | EP1508136A1 Device for creating noise in a motor vehicle |
| 02/23/2005 | EP1432595B1 Acoustic transducer head, acoustic transducer provided with said head and method for acoustic transduction, in particular for a motor vehicle |
| 02/22/2005 | US6857580 Plug-in type liquid atomizer |
| 02/10/2005 | US20050029766 Sound emitting device |
| 02/03/2005 | US20050022366 Method for manufacturing a dynamic speaker |
| 02/02/2005 | EP1502830A1 Armoured siren for motor vehicle |
| 02/02/2005 | EP1467806A4 Sound emitting device |
| 02/02/2005 | CN2676352Y Ceramic sounding alarm speaker |
| 02/02/2005 | CN1573830A Sound signal generator for operation protection |
| 02/02/2005 | CN1188008C Multi-functional sound device |
| 02/02/2005 | CN1187732C Surface assembling type electromagnetic sound-producing device |
| 02/01/2005 | US6850465 Pulse generating drive circuit for an electromagnetic source for generating acoustic waves |
| 01/19/2005 | EP1498007A2 Wave flextensional shell configuration |
| 01/19/2005 | CN1567427A Method for driving trumpet |
| 01/13/2005 | US20050008174 Underwater sound source |
| 01/12/2005 | CN1184851C Electro-acoustic transducer and its producing method |
| 01/06/2005 | WO2005001812A1 Diaphragm for a tone generator assembly |
| 01/06/2005 | WO2004007097A8 Acoustic-signal emitting device for vehicles |
| 01/05/2005 | DE10327661A1 Operating motor vehicle with internal combustion engine, starter and direct injection involves activating sound generator for controlled generation of sound waves when engine is started |
| 01/05/2005 | CN2669538Y Electroacoustic/acoustoelectric transducer for information acoustic wave transmission system |
| 01/05/2005 | CN2669313Y Contact free double-audio-frequency electric loudspeaker for vehicles |
| 12/29/2004 | CN1182755C Piezoelectric electroacoustic transducer |
| 12/23/2004 | DE10326023A1 Acoustic signal transmitter for a motor vehicle has a casing fitted with a tone generator and a sound outlet hole |
| 12/22/2004 | EP1489593A2 Underwater sound source comprising piezoelectric or magnetostrictive rods |
| 12/22/2004 | CN2665185Y Volume regulating circuit for full-automatic washing machine buzzer |
| 12/16/2004 | WO2004108306A1 Vibration generator and electronic apparatus |
| 12/15/2004 | EP1485267A1 Metter apparatuses for vehicles |
| 12/15/2004 | CN1555551A Non-cylindrical acoustic wave device |
| 12/15/2004 | CN1180320C Portable articles, such as time-meter, with piezoelectric sensor capable of artificial inputting data |
| 12/09/2004 | US20040246110 Electropneumatic horn |
| 12/02/2004 | CA2524018A1 High-power ultrasound generator and use in chemical reactions |
| 12/01/2004 | CN1177653C Vibrating actuator |
| 12/01/2004 | CN1177652C Electrical/mechanical/soundconverter and apparatus of electrical/mechanical/sound conversion device using the converter |
| 11/25/2004 | DE102004007247A1 Piezoelektrischer akustischer Wandler A piezoelectric transducer |
| 11/24/2004 | CN2658897Y Megaphone having lightning device |
| 11/24/2004 | CN2658896Y Born with air bag |
| 11/17/2004 | CN2657157Y Acousto-optic double-alarm combined horn for car |
| 11/17/2004 | CN1547802A Adaptive audible alert volume control |
| 11/16/2004 | US6819227 Acoustic signal generator, and method for generating an acoustic signal |
| 11/11/2004 | WO2003061334A3 Wave flextensional shell configuration |
| 11/11/2004 | US20040221442 Ultra-low frequency acoustic transducer |
| 11/11/2004 | DE102004011751A1 Piezoelektrischer elektroakustischer Wandler und sein Herstellungsverfahren A piezoelectric electro-acoustic transducer and its manufacturing method |
| 11/09/2004 | US6816065 Electromechanical horn warning system |
| 11/04/2004 | WO2004095418A1 Acoustic generator having an air-blowing hole, an air-compression chamber and a membrane |
| 11/03/2004 | CN1543752A Electroacoustic transducer with vibration function and its manufacturing method |
| 11/02/2004 | US6813223 Portable object such as, in particular, a timepiece, including a piezoelectric transducer for entering data manually |
| 10/26/2004 | US6810128 Electromagnetic induction actuator and portable telecommunications equipment |
| 10/26/2004 | US6809634 Buzzer-driving apparatus |
| 10/20/2004 | EP1467951A2 Active acoustic piping |
| 10/20/2004 | EP1467806A1 Sound emitting device |
| 10/19/2004 | US6807283 Electroacoustic transducer |
| 10/14/2004 | US20040204149 Arrival alerting device,arrival alerting method, and mobile terminal |
| 10/14/2004 | US20040201326 Piezoelectric acoustic transducer |
| 10/13/2004 | CN1536931A Piezoelectric electroacoustic converter and its mfg. method |
| 10/13/2004 | CN1536930A Piezoelectric electroacoustic transducer |
| 10/13/2004 | CN1171502C Signal converter |
| 10/12/2004 | US6802220 Apparatus for transporting levitated objects |
| 10/07/2004 | WO2004084734A1 Ultrasonic probe |
| 10/07/2004 | US20040195941 Piezoelectric electro-acoustic transducer and manufacturing method of the same |
| 10/07/2004 | US20040194285 Electro-acoustic transducer and method of manufacturing the same |
| 10/06/2004 | CN1535187A Signal born with adaptively modifiable operating variables |
| 10/06/2004 | CN1535034A System and method for improving sound quality of multifunctional equipment of mobile communication terminal |
| 10/06/2004 | CN1533935A Vehicle horn driving circuit |
| 10/06/2004 | CN1170457C Electrosonic energy transducer |
| 10/05/2004 | US6800987 Protective housing for ultrasonic transducer apparatus |
| 09/30/2004 | US20040192210 System and method for improving sound quality of an MFD in a mobile communication terminal |
| 09/30/2004 | DE10012878B4 Vorrichtung zur Erzeugung akustischer Wellen A device for generating acoustic waves |
| 09/29/2004 | EP1463277A2 System and method for improving sound quality of a multifunction device MFD in a mobile communication terminal |
| 09/28/2004 | US6798122 Lightweight underwater acoustic projector |
| 09/23/2004 | DE10333134A1 Device to be used in ultrasonic diagnostics, comprising scanner fitted with control buttons |
| 09/22/2004 | EP1459293A1 Electropneumatic horn |
| 09/22/2004 | CN1530923A Method for controlling horn sounding |
| 09/22/2004 | CN1168067C Electroacoustic transducer and method of manufacture thereof |
| 09/21/2004 | US6794799 Piezoelectric electroacoustic transducer |
| 09/21/2004 | US6792810 Ultrasonic sensor |
| 09/16/2004 | DE10308887A1 Horn, has control equipment that determines change in inductance of sensor electrical coil arrangement to derive position or deflection of membranous element |
| 09/15/2004 | CN2641964Y Self programing, frequency selectinga nd pulse width selecting device for driving automobile electrical horn |
| 09/09/2004 | US20040173248 Ultrasonic vibrator, wet-treatment nozzle, and wet-treatment apparatus |
| 09/08/2004 | CN1165886C Connector for sounder |
| 09/02/2004 | WO2004073891A1 Audible warning device, driving circuit and operating method |
| 09/01/2004 | EP1450964A2 Plug-in type liquid atomizer |
| 08/31/2004 | US6783370 Connecting member for a sound generator |
| 08/26/2004 | WO2004071799A1 Metter apparatuses for vehicles |
| 08/25/2004 | EP1449201A2 Non-cylindrical acoustic wave device |
| 08/25/2004 | EP1448317A1 Ultrasonic transducer and method of joining an ultrasonic transducer |
| 08/25/2004 | CN2636358Y Buzzer structure with light-sound effect |
| 08/25/2004 | CN1163867C Electromagnetic electroacoustic transducer |
| 08/24/2004 | US6781288 Ultra-low frequency acoustic transducer |
| 08/19/2004 | DE10042012B4 Vorrichtung zur Geräuschgestaltung bei einem Kraftfahrzeug Apparatus for noise in a motor vehicle |
| 08/12/2004 | US20040155557 Piezoelectric vibration body, manufacturing method thereof, and device comprising the piezoelectric vibration body |
| 08/11/2004 | CN1161745C Sound generator and method of generating sound |
| 08/05/2004 | WO2004052075A3 Improved efficiency audible alarm |
| 08/04/2004 | CN2631000Y Snail-type water-proofing electronic horn for automobile |
| 07/20/2004 | US6766034 Multifunction acoustic device |
| 07/15/2004 | US20040135445 Vibration motor holding apparatus and portable electronic equipment having the same |
| 07/15/2004 | DE10201066B4 Stoßwellenquelle Shock wave source |
| 07/01/2004 | US20040125701 Towed low-frequency underwater detection system |
| 07/01/2004 | DE10260118A1 Ultraschallsensor und Herstellungsverfahren Ultrasonic sensor and production method |