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)
07/2003
07/15/2003US6591938 Speaker diaphragm
07/08/2003US6590994 Linear vibrating device and speaker equipped with the same
07/08/2003US6590993 Panel-shaped loudspeaker
07/03/2003US20030124271 Vehicle trim panel/radiator element system
07/03/2003US20030123693 Elastic fabric cloth knitted with conductive wires
07/03/2003US20030121718 Diaphragm suspension assembly for loudspeaker transducers
07/02/2003EP1324632A1 Speaker
07/02/2003EP1201102B1 Loudspeaker
07/01/2003US6587570 Electroacoustic transducer
06/2003
06/25/2003EP1322137A2 Portable speaker systems and applications thereof
06/25/2003EP1322136A2 Flat panel sound radiator with supported exciter and compliant surround
06/25/2003EP1322135A2 Flat panel sound radiator with enhanced audio performance
06/25/2003EP1169884B1 Flat surface loudspeaker and method for operating the same
06/25/2003CN1426668A Single and planar magnetic speaker
06/24/2003US6584206 Speaker apparatus
06/19/2003US20030112995 Electroacoustic transducer comprising a membrane with an improved pleats area
06/18/2003EP1319321A2 Loudspeaker driver
06/18/2003EP1216601B1 Diaphragm transducer
06/17/2003US6580799 Keyboard comprising a loudspeaker
06/17/2003US6578661 Speaker apparatus
06/12/2003WO2003049493A1 Display window for radiation of sounds in communication and multimedia devices
06/12/2003US20030106740 Speaker edge, method of foam-molding the same,apparatus for foam-molding the same, speaker edge foam-molding system, and speaker employing the speaker edge
06/10/2003US6577743 Electroacoustic transducer and structure for mounting an electroacoustic transducer
06/10/2003US6577742 Membrane support system
06/05/2003US20030103642 Rectangular transducer for panel-form loudspeaker
06/04/2003EP1066736B1 Vibration actuator having magnetic circuit elastically supported by a spiral damper with increased compliance
06/04/2003CN1422102A 压电扬声器 Piezoelectric speaker
06/03/2003US6574347 Flat-panel loudspeaker with compressed dampeners
05/2003
05/30/2003WO2003045110A1 Silicon microphone
05/30/2003WO2003043747A2 Manufacture having double sided features in a metal-containing web formed by etching
05/30/2003WO2003009635A3 Loudspeaker system
05/30/2003CA2467716A1 Manufacture having double sided features in a metal-containing web formed by etching
05/29/2003US20030099371 Piezoelectric speaker
05/28/2003EP1315400A2 Speaker and method for manufacturing the speaker
05/28/2003CN2553577Y Popular aluminium belt diaphragm high pitch loudspeaker
05/28/2003CN1421114A Electroacoustic transducer having diaphragm with coil mounting projections and interposed stabilizing walls
05/28/2003CN1420709A Microphone, diaphragm and method for making diaphragm
05/28/2003CN1420673A Loudpeaker system, mobile terminal apparatus and electronic apparatus
05/27/2003US6570995 Speaker device
05/27/2003US6568503 Loudspeaker with improved mounting structure for the surround
05/27/2003CA2084787C Loudspeakers
05/22/2003WO2003043376A1 Diaphragm structure of light-sound converter
05/22/2003WO2003043375A1 Speaker
05/22/2003WO2002085064A3 Acoustic radiator with a baffle of a diameter at least as large as the opening of the speaker enclosure to which it is mounted
05/22/2003US20030093891 Method for manufacturing speaker
05/20/2003US6567529 Low frequency loudspeaker driver having a polygonal diaphragm and method for mounting drivers in a tightly packed two-dimensional array
05/20/2003US6567528 Offset apex spider
05/20/2003CA2266362C Vehicular loudspeaker system
05/15/2003WO2003041448A1 Flat loudspeaker unit
05/15/2003WO2002063919A3 Panel form loudspeaker
05/13/2003US6563934 Mechanically tunable diaphragm using nickel titanium memory metal
05/13/2003US6563930 Speaker
05/07/2003CN1416295A Loudspeaker and method of mfg. such loudspeaker
05/06/2003US6560348 Contact connections
05/06/2003US6557225 Method of producing surface acoustic wave device
05/02/2003EP1305976A1 Recovery of metals by incineration of metal containing basic ion exchange resin
05/01/2003US20030081807 Speaker and method for manufacturing the speaker
05/01/2003US20030081800 Flat panel sound radiator with supported exciter and compliant surround
05/01/2003US20030081799 Flat panel sound radiator with enhanced audio performance
05/01/2003US20030079936 Loudspeaker damper and loudspeaker
04/2003
04/30/2003DE20300879U1 Conical diaphragm for loudspeaker of two paper layers sandwiching honeycomb structure
04/30/2003CN1107128C Molded aromatic polyamide sheet
04/30/2003CA2407160A1 Flat panel sound radiator with supported exciter and compliant surround
04/30/2003CA2405583A1 Flat panel sound radiator with enhanced audio performance
04/29/2003US6554962 Loudspeaker diaphragm
04/29/2003US6554098 Panel speaker with wide free space
04/29/2003CA2260787C Flexural plate sound transducer having low resonant frequency
04/24/2003WO2002104065A3 Mobile telephone
04/24/2003US20030076977 Planar magnetic transducer
04/24/2003US20030075382 Forming support delimiting this surface from a continuous structure, forming on at least one of faces of support an absorbent coating which absorbs surface mechanical wave and local waves
04/23/2003CN1413335A Contact sensitive device
04/23/2003CN1413062A Film, planar sound converter and planar film
04/22/2003US6553124 Acoustic device
04/17/2003WO2003032684A1 Method of producing speaker diaphragm
04/17/2003WO2003032679A2 Loudspeaker
04/17/2003US20030070869 Low distortion loudspeaker cone suspension
04/10/2003US20030068064 Neoprene surround for an electro-dynamic acoustical transducer
04/10/2003US20030068056 Mobile communications terminal with flat loudspeaker disposed in the terminal housing
04/10/2003US20030068054 Diaphragm, flat-type acoustic transducer, and flat-type diaphragm
04/09/2003EP1301012A1 Mobile communication device with a flat speaker placed in the housing
04/09/2003EP1299940A1 Mechanical-to-acoustical transformer and multi-media flat film speaker
04/09/2003EP1125473B1 Acoustic device according to bending wave principle
04/08/2003US6546106 Acoustic device
04/08/2003US6543574 Method of making a speaker edge containing isocyanate and polyol
04/08/2003US6543573 Speaker unit, speaker system, and speaker diaphragm manufacturing method
04/03/2003WO2003028404A1 Speaker, speaker module, and electronic equipment using the speaker module
04/03/2003US20030063769 Loudspeaker
04/02/2003EP1298957A2 Loudspeaker
04/02/2003EP1297720A2 Electroacoustic transducer with replaceable diaphragm
03/2003
03/27/2003WO2003026344A2 Acoustic device
03/27/2003US20030059080 Speaker
03/27/2003US20030059069 Loudspeaker
03/27/2003US20030059068 Electronic article comprising loudspeaker and touch pad
03/26/2003EP1294493A2 Capacitive micromachined ultrasonic transducers.
03/25/2003US6539097 Multi-functional vibration actuator
03/20/2003WO2003024151A1 An electro-acoustic transducer with two diaphragms
03/20/2003US20030053645 Piezo-electric speaker
03/20/2003US20030053643 Apparatus comprising a vibration component
03/20/2003US20030053642 Passenger vehicle
03/20/2003US20030052570 Electromechanic film and acoustic element
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