| Patents for H04R 7 - Diaphragms for electromechanical transducers; Cones (6,555) |
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| 04/21/2005 | US20050084131 Loudspeakers |
| 04/21/2005 | DE102004001215B3 Removable frame for exciter of flat membrane loudspeaker has inner ring holding membrane and fitting in outer ring with set of spring clips |
| 04/21/2005 | CA2538292A1 Audio loudspeaker |
| 04/20/2005 | EP1524880A2 Speaker and method of manufacturing the same |
| 04/20/2005 | EP1384224B1 Display signs |
| 04/20/2005 | CN1607863A Speaker and method of manufacturing the same |
| 04/20/2005 | CN1198481C Method for manufacturing speaker |
| 04/20/2005 | CN1198480C Acoustic device |
| 04/14/2005 | WO2005034575A2 Module for the production of transmitter panels and sound receivers, panel thus produced |
| 04/14/2005 | WO2005034573A1 Speaker module and appratus using this |
| 04/14/2005 | US20050078850 Audio loudspeaker |
| 04/14/2005 | US20050078849 Speaker and method of manufacturing the same |
| 04/13/2005 | CN1606896A Method for manufacturing an electroacoustical transducer comprising a membrane configuration |
| 04/13/2005 | CN1197415C Surface acoustic wave device |
| 04/06/2005 | EP1519983A1 Membranes made of cast polyarylate film |
| 03/31/2005 | US20050069158 Packaged piezoelectric exciter module |
| 03/31/2005 | US20050069157 Conductive stub of sound exciter |
| 03/30/2005 | EP1410681B1 Production of non-planar membranes for electroacoustic converters |
| 03/30/2005 | CN1602648A Loudspeakers |
| 03/24/2005 | WO2005027573A1 Loudspeaker and microphone based on the principle of the center of percussion |
| 03/24/2005 | WO2005027571A1 Electromechanical force transducer |
| 03/24/2005 | DE19523974B4 Verfahren zur Herstellung einer Anpaß- oder Dämpfungsschicht oder einer akustischen Linse für eine Ultraschall-Wandleranordnung A process for the preparation of a matching or cushion layer or an acoustic lens for an ultrasonic transducer arrangement |
| 03/23/2005 | EP1517582A1 Loudspeaker edge |
| 03/23/2005 | CN1599511A Magnesium diaphragm, method of manufacturing the same, and speaker apparatus |
| 03/16/2005 | EP1515583A1 Speaker |
| 03/16/2005 | EP1515582A1 Dynamic electroacoustic converter, in particular small speaker |
| 03/16/2005 | EP0976200A4 Vehicular loudspeaker system |
| 03/16/2005 | CN1596033A Condenser microphone using space efficiently and having no characteristic variations |
| 03/16/2005 | CN1596032A Dynamic electroacoustic converter, in particular small speaker |
| 03/10/2005 | US20050053257 Acoustic device |
| 03/10/2005 | US20050053254 Condenser microphone using space efficiently and having no characteristic variations |
| 03/10/2005 | US20050051380 Speaker diaphragm and speaker using the diaphram |
| 03/09/2005 | EP1513370A2 Condenser microphone |
| 03/09/2005 | EP1513369A2 Speaker diaphragm and speaker using the diaphragm |
| 03/09/2005 | EP1512673A1 Method for manufacturing ceramic structure |
| 03/09/2005 | CN1592494A Speaker diaphragm and speaker using the diaphram |
| 03/09/2005 | CN1192680C Plate loudspeaker with wide and free space |
| 03/08/2005 | US6865282 Loudspeaker suspension for achieving very long excursion |
| 03/08/2005 | US6865277 Passenger vehicle |
| 03/08/2005 | US6863153 Loudspeaker diaphragm |
| 03/03/2005 | WO2005020630A1 Loudspeaker having a composite diaphragm structure |
| 03/03/2005 | US20050047617 Flat panel monitor frame with integral speakers |
| 03/03/2005 | DE202004018185U1 Foil or film for a jet high tone loud speaker having a membrane film and operating using the air motion principle and with aluminium conductive tracks on both sides of the film |
| 03/02/2005 | EP1511354A2 Magnesium diaphragm, method of manufacturing the same, and speaker apparatus |
| 03/02/2005 | CN1589587A 硅麦克风 Silicon microphones |
| 03/01/2005 | US6862361 Audio speaker |
| 02/24/2005 | WO2004114717A3 Improvements to loudspeaker driver assemblies |
| 02/24/2005 | WO2004103019A3 Apparatus and method for generating acoustic energy in a receiver assembly |
| 02/24/2005 | US20050041828 Magnesium diaphragm, method of manufacturing the same, and speaker apparatus |
| 02/22/2005 | US6859544 Magnetic circuit for speaker, method of manufacture thereof, and speaker using same |
| 02/17/2005 | WO2005015950A1 Loudspeaker with undulated membrane |
| 02/17/2005 | WO2005015949A1 Shallow loudspeaker |
| 02/17/2005 | WO2005015948A1 Acoustic device |
| 02/17/2005 | WO2004103022A3 Device and method for calculating a discrete value of a component in a loudspeaker signal |
| 02/17/2005 | US20050036647 Acoustic transducer with mechanical balancing |
| 02/17/2005 | US20050036646 Magnet retention system in planar loudspeakers |
| 02/17/2005 | US20050036641 Megaphone sign apparatus and method |
| 02/16/2005 | EP1507438A2 Sound reproduction device and portable terminal apparatus |
| 02/16/2005 | EP1506691A2 Loudspeaker |
| 02/16/2005 | CN1581891A Sound reproduction device and portable terminal apparatus |
| 02/10/2005 | US20050031155 Planar loudspeaker |
| 02/10/2005 | US20050031153 Low-profile transducer |
| 02/10/2005 | US20050031152 Coil for an electroacoustic transducer |
| 02/10/2005 | US20050028348 Method for manufacturing an electroacoustical transducer comprising a membrane configuration |
| 02/10/2005 | DE102004009902A1 Ausstattungsteil für ein Fahrzeug, insbesondere ein Kraftfahrzeug und Verwendung eines Ausstattungsteils als Lautsprecher Piece of equipment for a vehicle, especially a motor vehicle and use an equipment part as a speaker |
| 02/09/2005 | EP1504630A1 Means at electromagnetic vibrator |
| 02/09/2005 | CN1578541A Method for producing vibrating parts of loudspeaker and vibrating parts for loudspeaker |
| 02/09/2005 | CN1578537A Piezoelectric vibrator |
| 02/09/2005 | CN1189061C Semiconductor device, semiconductor electret capactior microphone and mfg. method thereof |
| 02/09/2005 | CN1189060C 扬声器装置 The speaker device |
| 02/09/2005 | CN1188827C Character information receiver |
| 02/08/2005 | US6853734 Audio speaker damper with electrically conductive paths thereon to carry voice coil signals and a method therefore |
| 02/08/2005 | US6851513 Tangential stress reduction system in a loudspeaker suspension |
| 02/08/2005 | CA2192070C High gain acoustic transducer |
| 02/03/2005 | WO2004107808A3 Display screen loudspeaker |
| 02/03/2005 | WO2004030407B1 Drive mechanism |
| 02/03/2005 | US20050025331 Loudspeaker coil suspension system |
| 02/03/2005 | US20050025330 Sound reproduction device and portable terminal apparatus |
| 02/03/2005 | US20050023937 Piezoelectric vibrator |
| 02/03/2005 | DE10154915B4 Flachlautsprecheranordnung Flat loudspeaker arrangement |
| 02/02/2005 | EP1502478A1 Loudspeaker with a first and a second diaphragm body |
| 02/02/2005 | CN2676554Y Paper-honeycomb-paper sandwich multiple layer type sound basin structure |
| 02/02/2005 | CN2676553Y Sound membrane with hole |
| 02/02/2005 | CN1575040A Speaker and method of manufacturing the same |
| 02/02/2005 | CN1575038A Resin-molded component and method for manufacturing thereof as well as diaphragm for loudspeaker |
| 02/02/2005 | CN1575028A Exciting device |
| 02/02/2005 | CN1188008C Multi-functional sound device |
| 02/01/2005 | US6850138 Vibration actuator having an elastic member between a suspension plate and a magnetic circuit device |
| 01/27/2005 | WO2005009074A1 Panel-shaped acoustic wave generator |
| 01/27/2005 | US20050018870 Speaker for super-high frequency range reproduction |
| 01/27/2005 | US20050018865 Loudspeaker |
| 01/27/2005 | DE10326761A1 Lautsprecher Speaker |
| 01/26/2005 | EP1501074A2 Piezoelectric vibrator |
| 01/26/2005 | EP1500300A1 Display comprising an integrated loudspeaker and method for recognizing the touching of the display |
| 01/26/2005 | CN1571582A Mini-acoustical device based on magneto resistor effect |
| 01/26/2005 | CN1186966C Loudspeaker and loudspeaker apparatus |
| 01/20/2005 | US20050013461 Loudspeaker |
| 01/20/2005 | US20050013453 Flat panel loudspeaker system for mobile platform |
| 01/20/2005 | US20050013452 Loudspeaker based on the " center of percussion" or the " sweet spot" point, with gas filled hollow oscillating member and fluid flooded voice coil |
| 01/19/2005 | EP1433356B1 Resonant bending wave loudspeaker |