| Patents for H04R 11 - Transducers of moving-armature or moving-core type (1,828) |
|---|
| 10/11/2001 | US20010028303 Electromagnetic sound generator |
| 10/04/2001 | EP0993759B1 Shock resistant electroacoustic transducer |
| 09/27/2001 | DE10002567C1 Elektrisch-akustischer Miniaturwandler Electric-acoustic miniature transducers |
| 09/26/2001 | CN2450847Y Integral sounder |
| 09/26/2001 | CN1314771A Electro-acoustic converter |
| 09/26/2001 | CN1071920C Electro-magnetic acoustic exchanger and method for winding coil of same |
| 09/20/2001 | US20010022844 Electroacoustic transducers |
| 09/18/2001 | US6290205 Valve element and method of manufacturing the same |
| 09/12/2001 | CN2448042Y Mid-high voice frequency coaxial loudspeaker |
| 09/11/2001 | US6289106 Cap and center pole apparatus and method of coupling |
| 08/30/2001 | US20010017930 Speaker and its production method of the same |
| 08/30/2001 | US20010017929 Cap and center pole apparatus and method of coupling |
| 08/29/2001 | CN2445540Y Vehicle klaxon |
| 08/09/2001 | US20010012375 Vibration balanced receiver |
| 08/02/2001 | WO2001056329A2 Electroacoustic transducer having a moving coil and having elastic holding elements for the connecting leads of the moving coil |
| 08/02/2001 | US20010010728 Electroacoustic transducer having a moving coil and having elastic holding elements for the connecting leads of the moving coil |
| 07/26/2001 | US20010009587 Electroacoustic miniature transducer |
| 07/25/2001 | EP1119219A2 Electroacoustic miniature transducer |
| 07/19/2001 | WO2001052594A2 Vibration balanced receiver |
| 05/31/2001 | US20010002041 Valve element and method of manufacturing the same |
| 05/23/2001 | EP1102517A2 Electroacoustic transducer for hearing aids |
| 05/23/2001 | CN1296373A Electro-magnetic converter used in deaf-aid sounding especial in electronic deaf-aid sounding |
| 05/10/2001 | WO2000074435A3 Assembly of an armature and magnetic elements for an electroacoustic transducer |
| 04/12/2001 | WO2001026413A2 Electro-acoustic transducer with resistance to shock-waves |
| 04/10/2001 | US6213448 Valve element and method of manufacturing the same |
| 03/27/2001 | US6208238 Electromagnetic sound generating body |
| 03/27/2001 | US6208237 Electro-mechanical and acoustic transducer for portable terminal unit |
| 03/14/2001 | EP1082872A1 Electric-acoustic transducer having moving magnet and transducing method thereof |
| 03/08/2001 | WO2000070905A3 Electromagnetic transducer and portable communication device |
| 02/21/2001 | EP1077586A2 Shock improvement for an electroacoustic transducer |
| 01/25/2001 | DE19954880C1 Electro-magnetic converter for sound production in hearing aid |
| 01/24/2001 | CN1281628A Mechanical acoustic crossover network and transducer thereof |
| 12/28/2000 | WO2000059262A3 Cap and center pole apparatus and method of coupling |
| 12/27/2000 | CN2412342Y Static-ring induction loudspeaker |
| 12/26/2000 | CA2146969C Electroacoustic transducer |
| 12/20/2000 | CN1277792A Electric-acoustic transducer having moving magnet and transducing method thereof |
| 12/07/2000 | WO2000074437A1 Microphone for a hearing aid |
| 12/07/2000 | WO2000074435A2 Assembly of an armature and magnetic elements for an electroacoustic transducer |
| 11/23/2000 | WO2000070905A2 Electromagnetic transducer and portable communication device |
| 11/08/2000 | EP1050191A1 Thin loudspeaker |
| 10/31/2000 | US6141430 Electroacoustic transducer |
| 10/31/2000 | US6141427 Bone-conduction speaker |
| 10/26/2000 | WO2000027166A3 Transducer concepts for hearing aids and other devices |
| 10/24/2000 | CA2083988C Balanced armature transducers with transverse gap |
| 10/18/2000 | EP1044584A1 Mechanical acoustic crossover network and transducer therefor |
| 10/12/2000 | WO2000060902A1 Electroacoustic transducer with a diaphragm, and method for fixing a diaphragm in such transducer |
| 10/05/2000 | WO2000059262A2 Cap and center pole apparatus and method of coupling |
| 09/26/2000 | US6123660 Partially or fully implantable hearing aid |
| 08/29/2000 | US6111971 Electroacoustic transducer |
| 07/12/2000 | CN2387688Y Electroacoustic transducer coupling holohedral magnetic-field structure |
| 06/29/2000 | DE19960306A1 Ventilelement und Verfahren zum Herstellen desselben Of the same valve element and method for producing |
| 06/29/2000 | DE19960305A1 Ventilelement und Verfahren zum Herstellen desselben Of the same valve element and method for producing |
| 06/20/2000 | US6078677 Electroacoustic transducer with improved diaphragm attachment |
| 06/13/2000 | US6075870 Electroacoustic transducer with improved shock resistance |
| 06/06/2000 | US6072887 Receiver-transmitter of communication equipment |
| 06/02/2000 | WO2000032013A1 Electric-acoustic transducer having moving magnet and transducing method thereof |
| 05/24/2000 | EP1003317A2 An electromagnetic sound generating body |
| 05/24/2000 | CN1254244A Electromagnetic sounding body |
| 05/23/2000 | US6067364 Mechanical acoustic crossover network and transducer therefor |
| 05/11/2000 | WO2000027166A2 Transducer concepts for hearing aids and other devices |
| 04/19/2000 | EP0993759A1 Shock resistant electroacoustic transducer |
| 03/21/2000 | US6041131 Shock resistant electroacoustic transducer |
| 03/08/2000 | EP0984665A2 Transducer arrangement for partially or completely implanted hearing-aid |
| 03/07/2000 | US6035052 Acoustic transducer |
| 02/08/2000 | US6023519 Electroacoustic transducer |
| 02/08/2000 | US6023518 Electromagnetic sound generator |
| 02/02/2000 | CN1243653A Electro-dynamic exciter |
| 01/26/2000 | CN1242721A Electric-mechanical-acoustic transducer and method for mfg. same |
| 01/12/2000 | EP0970758A1 Electric-mechanical-acoustic transducer and a method of manufacturing the same |
| 12/30/1999 | DE19840211C1 Transducer for partially or fully implantable hearing aid |
| 12/28/1999 | US6009047 Sound generation device |
| 12/01/1999 | CN1236938A Electromagnetic sound generator |
| 11/17/1999 | EP0956736A2 Electro-dynamic exciter |
| 10/27/1999 | CN1233384A Three-axis seismic vibrator |
| 10/20/1999 | EP0950337A1 Three-axis seismic vibrator |
| 10/07/1999 | DE19914235A1 Miniaturwandler Miniature transducers |
| 09/28/1999 | US5960093 Miniature transducer |
| 09/22/1999 | CN2340143Y Coupled holohedral magnetic-field structure of electroacoustic transducer |
| 08/03/1999 | CA2071927C Coil assemblies |
| 07/15/1999 | WO1999035883A1 Thin loudspeaker |
| 06/24/1999 | WO1999031932A1 Mechanical acoustic crossover network and transducer therefor |
| 06/23/1999 | EP0924961A1 Electroacoustic transducer |
| 06/09/1999 | CN2323545Y Loudspeaker without magnetic conduct column and magnetic conduct sheet |
| 05/14/1999 | WO1999022882A1 Electric-mechanical-acoustic transducer and a method of manufacturing the same |
| 04/21/1999 | CN2315750Y Disc shelf mechanism for loudspeaker |
| 04/21/1999 | CN1214607A Electrocoustic transducer |
| 04/14/1999 | CN2314540Y Full band coaxal speaker |
| 03/31/1999 | CN2312549Y Symmetric driven integrated loudspeaker |
| 03/24/1999 | CN2311907Y Automatic riveter for loundspeaker connector board |
| 03/17/1999 | EP0902601A2 Earphone |
| 02/04/1999 | DE19739637C1 Hearing capsule for telephone handset |
| 01/21/1999 | WO1999003305A1 Shock resistant electroacoustic transducer |
| 11/25/1998 | CN2298629Y Non-contact electronic klaxon |
| 11/19/1998 | WO1998034320A3 Electro-dynamic inertial vibration exciter |
| 11/10/1998 | US5834999 Transducer for a stringed musical instrument |
| 11/04/1998 | CN1198071A Electro-machanical and acoustic transducer for prtable teminal unit |
| 10/28/1998 | CN2296105Y Framed vibration speaker |
| 10/20/1998 | US5825778 Method of converting a packetized input transport data stream |
| 10/14/1998 | CN1195947A Modulator input interface device |
| 09/23/1998 | CN1193885A Electromagnetic acoustic transducer |