| Patents for H04R 7 - Diaphragms for electromechanical transducers; Cones (6,555) |
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| 01/19/2005 | EP1236375B1 Flat loudspeaker system for bass reproduction |
| 01/19/2005 | CN1568636A Voice coil of speaker |
| 01/19/2005 | CN1568092A Method for decreasing acoustic radiation of plate or film via surface slotopening |
| 01/18/2005 | US6845169 Speaker parts and method of manufacturing same |
| 01/18/2005 | US6845166 Plane driving type electroacoustic transducer |
| 01/13/2005 | WO2005004535A1 Panel type speaker |
| 01/13/2005 | WO2005002926A1 Equipment element for a vehicle, in particular a motor vehicle and the use thereof in the form of a loudspeaker |
| 01/12/2005 | CN2671275Y Loudspeaker diaphragm |
| 01/12/2005 | CN1184853C Butterfly adjuster |
| 01/06/2005 | US20050002542 Apparatus and method for creating acoustic energy in a receiver assembly with improved diaphragms-linkage arrangement |
| 01/06/2005 | US20050002537 Resonant panel-form loudspeaker |
| 01/05/2005 | DE4497415B4 Lautsprecher Speaker |
| 01/04/2005 | US6839444 Loudspeakers |
| 12/30/2004 | US20040265564 Resin-molded component and method for manufacturing thereof as well as diaphragm for loudspeaker |
| 12/30/2004 | US20040264731 Speaker apparatus |
| 12/30/2004 | DE202004016536U1 Jet treble loudspeaker has rectangular, axially magnetized one-piece magnet element, and at least four 4.5 mm or more wide slots in front panel, which is arranged in front of membrane film |
| 12/29/2004 | WO2004114721A1 Diaphragms for loudspeaker drive units |
| 12/29/2004 | WO2004114717A2 Improvements to loudspeaker driver assemblies |
| 12/29/2004 | WO2004095881A3 Beryllium acoustic transducer |
| 12/29/2004 | WO2002013575A8 Bending wave loudspeaker |
| 12/29/2004 | EP0732037A4 High gain acoustic transducer |
| 12/29/2004 | CN1559160A Method for manufacturing diaphragm for speaker |
| 12/29/2004 | CN1182754C Loudspeaker |
| 12/28/2004 | US6836552 Panel loudspeakers |
| 12/28/2004 | US6834744 Speaker system |
| 12/23/2004 | WO2004112428A1 Loudspeaker |
| 12/23/2004 | US20040258260 Apparatus and method for generating acoustic energy in a receiver assembly |
| 12/22/2004 | EP1489881A1 Planar speaker |
| 12/22/2004 | EP1489681A1 Integrated antenna and speaker |
| 12/22/2004 | CN1181704C Parametric loudspeaker with electro-acoustical disphragm transducer |
| 12/16/2004 | WO2004110096A1 Flat panel speaker |
| 12/16/2004 | WO2004100600A3 Transmission of acoustic vibrations to a surface over the display of a mobile device |
| 12/15/2004 | EP1486322A1 Resin-molded component and method for manufacturing thereof as well as diaphragm for loudspeaker |
| 12/15/2004 | CN1180656C Passive radiator having mass elements |
| 12/14/2004 | US6832106 Electroacoustic transducer |
| 12/09/2004 | WO2004107809A1 Sound detection mechanism |
| 12/09/2004 | WO2004107808A2 Display screen loudspeaker |
| 12/09/2004 | WO2004107806A1 Audio system |
| 12/09/2004 | US20040247152 Production of non-planar membranes for electroacoustic convertes |
| 12/09/2004 | US20040246109 Exciting device |
| 12/09/2004 | DE10321980A1 Vorrichtung und Verfahren zum Berechnen eines diskreten Werts einer Komponente in einem Lautsprechersignal Device and method for calculating a discrete value of a component in a loudspeaker signal |
| 12/08/2004 | EP1484941A1 Loudspeaker |
| 12/08/2004 | CN1554210A An electro-acoustic transducer with two diaphragms |
| 12/08/2004 | CN1554209A Loudspeakers |
| 12/08/2004 | CN1553744A Manufacture of laminated drum papers and products thereby |
| 12/02/2004 | US20040240701 Method and audio speaker with minimization of wobble of the voice coil |
| 12/02/2004 | US20040240687 Flat panel speaker |
| 12/02/2004 | US20040238267 Diaphragm structure of light sound converter |
| 12/01/2004 | EP1482762A2 Speaker and method of manufacturing the same |
| 12/01/2004 | EP1481569A1 Flexible diaphragm with integrated coil |
| 12/01/2004 | CN1552170A Loudspeaker |
| 12/01/2004 | CN1551682A Magnesium diaphragm, method for manufacturing the same, and speaker using the diaphragm |
| 12/01/2004 | CN1551040A Coordinate input device with vibrating function |
| 11/30/2004 | US6826285 Bending wave loudspeaker |
| 11/25/2004 | WO2004103025A1 Loudspeaker system for virtual sound synthesis |
| 11/25/2004 | WO2004103022A2 Device and method for calculating a discrete value of a component in a loudspeaker signal |
| 11/25/2004 | WO2004103019A2 Apparatus and method for generating acoustic energy in a receiver assembly |
| 11/25/2004 | WO2004103018A2 Apparatus and method for generating acoustic energy in a receiver assembly |
| 11/25/2004 | WO2004073350B1 Device for fitting a space-designing means with a loudspeaker function |
| 11/25/2004 | WO2004030407A3 Drive mechanism |
| 11/25/2004 | US20040237111 Multimedia and entertainment system for an automobile |
| 11/25/2004 | US20040234095 Sound reproducing system using sound pressure |
| 11/25/2004 | US20040234087 Piston-type panel-form loudspeaker |
| 11/25/2004 | US20040231136 Magnesium diaphragm, method for manufacturing the same, and speaker using the diaphragm |
| 11/24/2004 | EP1480491A1 Thin speaker and method of manufacturing the speaker |
| 11/24/2004 | EP1480490A1 Magnesium speaker diaphragm, method of manufacturing the same, and speaker with such a diaphragm |
| 11/24/2004 | EP1480489A2 Exciting device for producing sound |
| 11/24/2004 | CN2659072Y Brake plate of loudspeaker |
| 11/23/2004 | US6820719 Butterfly damper |
| 11/18/2004 | WO2004100605A1 Loudspeaker unit with an acoustic panel |
| 11/18/2004 | WO2004100600A2 Transmission of acoustic vibrations to a surface over the display of a mobile device |
| 11/18/2004 | DE10319358A1 Foil converter used in magnetostatics operates according to the magnetostatic principle |
| 11/17/2004 | EP0847661B2 Acoustic device |
| 11/17/2004 | CN1547416A Speaker apparatus and electronic apparatus having speaker apparatus enclosed therein |
| 11/16/2004 | US6819773 Loudspeaker with a three-dimensional diaphragm |
| 11/16/2004 | US6817084 Method for manufacturing a speaker apparatus |
| 11/11/2004 | WO2004098236A1 Speaker diaphragm |
| 11/11/2004 | WO2004098231A1 Flat type speaker unit, and electric appliance having this unit |
| 11/11/2004 | US20040223620 Loudspeaker system for virtual sound synthesis |
| 11/10/2004 | EP1475988A1 Card sound device and electronic apparatus having same |
| 11/10/2004 | EP1354496B1 An electroacoustic transducer |
| 11/10/2004 | CN1545821A Loudspeaker with a three-dimensional diaphragm |
| 11/04/2004 | WO2004095882A1 Multi-layered membranes consisting of a plurality of materials, for the loudspeaker of a high fidelity loudspeaker cabinet |
| 11/04/2004 | WO2004095881A2 Beryllium acoustic transducer |
| 11/04/2004 | WO2004095879A2 Flat panel loudspeaker surface array |
| 11/04/2004 | US20040218780 Diaphragm edge of speaker |
| 11/04/2004 | US20040218779 Loudspeaker |
| 11/04/2004 | US20040218778 Loudspeaker suspension for achieving very long excursion |
| 11/04/2004 | US20040218777 In-wall speaker system method and apparatus |
| 11/04/2004 | CA2521785A1 Multi-layered membranes consisting of a plurality of materials, for the loudspeaker of a high fidelity loudspeaker cabinet |
| 11/03/2004 | CN2653829Y Improved speaker vibration membrane base material member |
| 11/03/2004 | CN1542509A Audio signal processing circuit and a display device incorporating the same |
| 11/02/2004 | US6813362 Loudspeaker and method of making same |
| 10/29/2004 | CA2465581A1 In-wall speaker system method and apparatus |
| 10/28/2004 | WO2004093492A1 System for the projection of cinematographic works or digitial works with sound |
| 10/28/2004 | WO2004057912A3 Acoustic actuators |
| 10/28/2004 | US20040213431 Electromagnetic audio transducer and or audio speaker |
| 10/28/2004 | US20040213425 Flat panel surface array |
| 10/28/2004 | US20040211251 Thin membrane transducer |
| 10/27/2004 | EP1471768A1 Speaker for super-high frequency range reproduction |