Patents
Sitemap › H04 - Electric communication technique › H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers; Deaf-aid sets; Public address systems › H04R 7 - Diaphragms for electromechanical transducers; Cones
Patents for H04R 7 - Diaphragms for electromechanical transducers; Cones (6,555)
08/2005
08/03/2005CN1649445A Dome shape vibration film and loudspeaker device with dome shape vibration film
08/02/2005US6925191 Flat panel speaker
07/2005
07/28/2005WO2005067675A2 Flat panel monitor frame with integral speakers
07/27/2005EP1558057A1 Loudspeaker with specific plastic element for sound emission
07/27/2005CN1647580A Loudspeaker with a first and a second diaphragm body
07/26/2005US6920957 Loudspeaker diaphragm
07/21/2005WO2005067344A1 Bending wave panel loudspeaker
07/21/2005WO2005034575A3 Module for the production of transmitter panels and sound receivers, panel thus produced
07/21/2005US20050157905 Loudspeaker
07/21/2005US20050157904 Acoustically enhanced electro-dynamic loudspeakers
07/21/2005US20050157900 Acoustic passive radiator rocking mode reducing
07/20/2005EP1555849A2 Acoustic passive radiator with rocking-mode reduction
07/20/2005CN1643976A Acoustic device
07/20/2005CN1642356A Acoustic passive radiator with rocking-mode reduction
07/14/2005WO2005064987A1 Waterproof vibrating plate for speaker
07/14/2005US20050152577 Planar speaker
07/14/2005US20050152576 Dome type diaphragm and loudspeaker apparatus
07/14/2005US20050152575 Loudspeaker transducer
07/14/2005US20050152564 Speaker having a transparent panel
07/14/2005DE202005007272U1 Vorrichtung zum Ausstatten eines Raumgestaltungsmittels mit einer Lautsprecherfunktion Apparatus for providing a room design means with a speaker function
07/14/2005DE202004020474U1 Vorrichtung zum Ausstatten eines Raumgestaltungsmittels mit einer Lautsprecherfunktion Apparatus for providing a room design means with a speaker function
07/13/2005EP1553801A1 Suspension and electro-acoustic transducer using the suspension
07/13/2005CN1640188A Thin speaker and method of manufacturing the speaker
07/13/2005CN1640187A Planar speaker
07/13/2005CN1638530A Speaker apparatus
07/12/2005US6915555 Method for manufacturing speaker
07/07/2005WO2005062664A1 Speaker and device using the same
07/07/2005US20050147274 Acoustic device
07/07/2005US20050147273 Acoustic device
07/07/2005US20050145434 Speaker unit for low frequency reproduction
07/06/2005EP1551203A1 Speaker, speaker module, and electronic apparatus using the speaker module
07/06/2005EP1550347A1 Loudspeaker having an outer edge
06/2005
06/30/2005US20050141746 Speaker apparatus
06/29/2005EP1549107A2 Speaker apparatus
06/29/2005EP1549106A1 Diaphragm for loud speaker and loud speaker employing it
06/29/2005CN1633825A Card sound device and electronic apparatus having same
06/28/2005US6912290 Speaker unit for low frequency reproduction
06/28/2005US6911901 Multi-functional vibro-acoustic device
06/23/2005US20050135653 Acoustically enhanced electro-dynamic loudspeakers
06/23/2005US20050135652 Vibrating plate of dynamic microphone and method of manufacturing the same
06/23/2005US20050135651 Means at electromagnetic vibrator
06/23/2005US20050135649 Vibrating plate of dynamic microphone, method of manufacturing the vibrating plate and dynamic microphone comprising the same.
06/22/2005EP1543702A2 Drive mechanism
06/16/2005WO2005055649A1 Plate type speaker using horizontal vibration voice coil
06/16/2005WO2005055648A1 Plane speaker having coil plate guide device
06/16/2005WO2005055647A1 Plane speaker having closed loop coil plate
06/16/2005WO2005055646A1 Voice coil plate and plane speaker including the same
06/16/2005US20050129267 Resonant panel-form loudspeaker
06/16/2005US20050129264 System module
06/16/2005US20050126707 Manufacture having double sided features in a metal-containing web and manufacture and method for forming same in a liquid-based etch process
06/15/2005EP1542064A1 Liquid crystal display device having sound output function and the like and electronic device using the same
06/15/2005CN1628484A Loudspeaker edge
06/09/2005WO2005053356A1 Loudspeaker
06/09/2005WO2005053355A2 Carry case
06/09/2005US20050123166 Structure of speaker
06/09/2005US20050123154 Speaker gasket and its manufacturing method, and speaker device
06/08/2005EP1538870A1 Piston-type panel-form loudspeaker
06/08/2005CN1625919A Speaker for super-high frequency range reproduction
06/08/2005CN1625918A Bending wave acoustic radiator
06/08/2005CN1625917A Low profile audio speaker
06/07/2005US6904154 Acoustic device
06/07/2005CA2244139C Distamycin derivatives, process for preparing them, and their use as antitumor and antiviral agents
06/01/2005CN2703375Y Planar horn vibrating plate structure
05/2005
05/26/2005WO2005048651A1 Tweeter
05/26/2005US20050111689 Loudspeaker with assembly and performance improvements
05/26/2005US20050111688 Electroacoustic transducer with a diaphragm and method for fixing a diaphragm in such transducer
05/25/2005EP1534046A2 Speaker gasket
05/25/2005EP1532843A2 Loudspeaker diaphragm systems
05/25/2005EP1532840A1 Loudspeaker with inverted cone
05/25/2005EP1532838A2 Electro-dynamic planar loudspeakers
05/25/2005EP1532743A1 Subminiature bone vibrating speaker using the diaphragm and mobile phone thereby
05/25/2005DE202005004730U1 Flat loudspeaker invisibly integrated into plate material has plate-shaped surface in form of membrane machined into larger and thicker plate so membrane is undetectable from front of plate
05/25/2005CN1620839A Flexible diaphragm with integrated coil
05/25/2005CN1620195A Parametric loudspeaker with electro-acoustical disphragm transducer
05/25/2005CN1620192A Speaker gasket and its manufacturing method, and speaker device
05/19/2005US20050105757 Electromagnetic transducer with eccentrically mounted voice coil former
05/19/2005US20050105748 Integrated flexible display and speaker apparatus and method
05/19/2005US20050105747 Card sound device and electronic apparatus having same
05/19/2005DE202004000509U1 Lautsprecher-Membran The speaker membrane
05/19/2005DE10345645A1 Loudspeaker for location behind projection screen, comprises flat panel loudspeaker using distributed mode loudspeaker technology
05/17/2005US6895097 Planar type speaker and system using it
05/17/2005US6894423 Piezoelectric electroacoustic transducer
05/17/2005US6892850 Surround for speaker system and manufacturing method thereof
05/12/2005WO2004103018A3 Apparatus and method for generating acoustic energy in a receiver assembly
05/12/2005DE202005002446U1 Multipoint membrane divider for condenser microphone capsules uses multiple spacers to separate a membrane into multiple areas
05/11/2005EP1529417A1 Loudspeaker
05/11/2005CN2699611Y Vibration structure of multifunctional electronic sound equipment converter
05/10/2005US6889796 Loudspeaker suspension
05/06/2005WO2005041616A1 Loudspeaker
05/05/2005US20050094836 Waveguide modeling and design system
05/04/2005CN2697994Y Low frequency loudspeaker with improved diaphragm structure
05/03/2005US6888946 High frequency loudspeaker
04/2005
04/28/2005WO2005039235A1 Speaker, speaker module, and electronic apparatus using the speaker module
04/28/2005US20050089187 Nanoporous diaphragm for electromagentic transducer
04/27/2005EP1525775A1 One-magnet rectangular transducer
04/27/2005EP1068770B1 Acoustic device relying on bending wave action
04/27/2005CN1610450A Method for manufacturing ceramic structure
04/26/2005US6885753 Communication device using bone conduction
04/21/2005WO2005036923A1 Diaphragm for loud speaker and loud speaker employing it
04/21/2005WO2005036920A2 Audio loudspeaker
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