Patents
Sitemap › G10 - Musical instruments; Acoustics › G10K - Sound-producing devices; methods or devices for protecting against, or for damping, noise or other acoustic waves in general; Acoustics not otherwise provided for › G10K 9 - Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
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)
11/2003
11/19/2003CN1128564C Method of ultrasonic welding for resin-case
11/18/2003US6649069 Active acoustic piping
11/13/2003US20030210153 Method and apparatus for adjusting audible and visual outputs of a mounted alarm device
11/05/2003CN1127284C Sounder
11/05/2003CN1127220C Vibration actuator for pager
11/04/2003US6643222 Wave flextensional shell configuration
10/2003
10/29/2003CN1126428C Electro-acoustic conversion device
10/23/2003WO2003088205A2 A device for actuating a membrane and a vehicle comprising a device for actuating a membrane.
10/21/2003CA2137187C High power, very low frequency acoustic wave transmission process and associated transducers
10/15/2003CN1124771C Electroacoustic transducer
10/08/2003EP1350242A1 Sound generator for a parking assistance system
10/08/2003CN2578928Y Buzzer
10/01/2003CN1122961C Drive circuit of piezoelectric buzzing piece
10/01/2003CN1122960C Sound generator for portable device
09/2003
09/30/2003US6628800 Electroacoustic transducer and method for manufacturing the same
09/24/2003EP1064645B1 Ultrasonic transducer
09/24/2003CN2575800Y Polyolefin insulation nylon sleeve electric wire
09/17/2003EP1222653B1 Underwater broadband acoustic transducer
09/17/2003CN2574167Y Contactless electronic horn
09/11/2003US20030169895 Method for producing electric-mechanical acoustic converter
09/11/2003US20030168278 Housing for a hands-free directional microphone
09/10/2003CN2572508Y Contactless water-proof electronic loudspeaker
09/09/2003US6617765 Underwater broadband acoustic transducer
09/04/2003WO2003062687A3 Active acoustic piping
09/03/2003CN1440020A Electromagnetic power circuit for producing sonic wave
09/02/2003US6614143 Class V flextensional transducer with directional beam patterns
09/02/2003US6612399 Lightweight low frequency loudspeaker for active noise control
08/2003
08/28/2003US20030161217 Pulse generating drive circuit for an electromagnetic source for generating acoustic waves
08/28/2003US20030160546 Ultra-low frequency acoustic transducer
08/27/2003CN1119791C 压电发声器 Piezoelectric Sounders
08/21/2003DE20309219U1 Car alarm siren has molded cover and piezo disc held by O-ring between front and rear resonator housings ultrasonically welded inside a front housing
08/07/2003US20030146824 Electromechanical warning horn system
07/2003
07/31/2003WO2003062687A2 Active acoustic piping
07/29/2003US6600408 Sound transmission device for a motor vehicle
07/29/2003US6600400 Electromagnetic electro-acoustic transducer
07/24/2003WO2003061334A2 Wave flextensional shell configuration
07/24/2003US20030138121 Ultrasonic converter unit having electrodes made of electrically-conductive plastic
07/24/2003US20030137406 Electromagnetic induction type actuator and portable communications device
07/24/2003US20030136745 Active acoustic piping
07/24/2003US20030136328 Signal-horn
07/23/2003EP1329875A2 Ultrasound transducer with electrically conducting plastic electrodes
07/22/2003US6595285 Method and device for emitting radial seismic waves in a material medium by electromagnetic induction
07/17/2003WO2003058601A1 Sound generator for a parking assistance system
07/17/2003US20030132055 Device using membranous valve to produce sound
07/10/2003WO2003056545A1 Electropneumatic horn
07/10/2003US20030128628 Wave flextensional shell configuration
07/08/2003US6589174 Technique and apparatus for ultrasound therapy
07/03/2003WO2003055046A1 Vibrating linear actuator and portable information device having the same
07/03/2003US20030124990 Vibrating linear actuator and portable information device having the same
07/03/2003US20030121331 Ultrasonic transceiver and ultrasonic clearance sonar using the same
07/02/2003CN1427633A Vibration actuator for pager
07/02/2003CN1427393A Contact less water proof electronic horn and its production process
07/02/2003CN1113578C Communication buzzer
07/02/2003CN1113570C Electromagnetic sounding body
07/01/2003US6587567 Piezoelectric electroacoustic transducer
06/2003
06/25/2003CN1426358A Reversing alarm
06/19/2003WO2003049875A2 Electromagnetic shock wave or pressure wave source
06/18/2003CN1111828C Alarm tag
06/12/2003WO2003047766A2 Plug-in type liquid atomizer
06/11/2003CN1423601A Electromechanical warning horn system
06/05/2003WO2003045586A1 Ultrasonic transducer and method of joining an ultrasonic transducer
06/05/2003US20030102384 Plug-in type liquid atomizer
06/04/2003EP1316942A2 Ultrasonic sensor unit and manufacturing method
05/2003
05/30/2003WO2003044770A1 Macrosonic emitter with vibrating plate comprising internodal zone separators and reflectors which can be used to obtain directional radiation in fluids
05/28/2003EP1315145A1 Housing for an ultrasonic transducer
05/27/2003US6570993 Electric-mechanical-acoustic converter and method for producing the same
05/21/2003CN1419395A 电声换能器 Electro-acoustic transducer
05/20/2003US6567343 Flextensional resonant pipe projector
05/20/2003US6567342 Flared wave-guide projector
05/15/2003US20030089172 Ultrasonic sensor and method for the production of an ultrasonic sensor
05/14/2003EP1310942A2 Ultrasonic sensor having a pot-like housing and its method of manufacture
05/13/2003US6564072 Radio telecommunication terminal
05/08/2003US20030086584 Electroacoustic transducer
05/07/2003CN2548675Y Cartoon air-bell with improved fixer
05/02/2003EP1305186A1 Electromechanical warning horn system
05/01/2003WO2003035191A1 Sound emitting device
04/2003
04/30/2003CN1107296C Signalizing device for domestic electric appliance
04/29/2003US6554772 Ultrasonic diagnosis device
04/29/2003CA2260787C Flexural plate sound transducer having low resonant frequency
04/24/2003US20030076095 Very high sensitivity magnetic sensor
04/22/2003US6553125 Multiple-function convertor for converting electric signals to vibration of elements of a portable electronic instrument
04/22/2003US6550416 Pneumatic valve device
04/22/2003CA2129628C Automotive vehicle tone generator
04/17/2003WO2003031227A1 Acoustic transducer head, acoustic transducer provided with said head and method for acoustic transduction, in particular for a motor vehicle
04/17/2003US20030072441 Vibration generating device and cellular phones using the same
04/17/2003DE10207737C1 Acoustic wave generation circuit has diode or diode module connected in parallel across HV capacitor
04/17/2003DE10015183C2 Piezoelektrische Keramikzusammensetzung, dieselbe verwendender Summer und Aktuator The piezoelectric ceramic composition, the same used Direction buzzer and actuator
04/16/2003CN1106134C Mfg. method of electromagnetic sound converter
04/02/2003EP1297904A1 Electromagnetic induction type actuator and portable communications device
04/02/2003CN1407827A Receiver, method, program and carrier signals adapted to volume of calling in signal
04/02/2003CN1104395C Piazoelectric ceramic composition, use of preparation buzzer and controller thereof
03/2003
03/26/2003EP1226573B1 Active noise cancellation system with integrated horn function
03/25/2003US6537234 Vibration transducer
03/20/2003WO2003023760A2 Non-cylindrical acoustic wave device
03/20/2003US20030052355 Integrated sound transmitter and receiver, and corresponding method for making same
03/19/2003CN1404282A Piezoelectric electroacoustic transducer
03/18/2003US6535459 Barrel stave projector-stave attachment
03/13/2003US20030050559 Non-cylindrical acoustic wave device
03/12/2003EP1289798A1 Reversing alarm
03/06/2003US20030044031 Multi-function actuator
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