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)
12/2007
12/27/2007WO2007083127A3 Bending wave acoustic device and method of making thereof
12/27/2007US20070297640 Loudspeaker device
12/25/2007US7311174 Cloth for loudspeaker diaphragm, loudspeaker diaphragm, and loudspeaker
12/19/2007CN101091414A Diaphragm and loudspeaker unit using the same
12/19/2007CN101091413A Diaphragm for speaker, method for producing the same, speaker using such diaphragm and apparatus using such speaker
12/18/2007US7308750 Method of manufacturing a magnesium diaphragm
12/18/2007CA2407123C Low distortion loudspeaker cone suspension
12/13/2007WO2007141685A2 Acoustic device and method of manufacturing same
12/13/2007US20070286439 Loudspeaker driver
12/13/2007DE19806509B4 Gerät zur Informationswiedergabe Device for reproducing information
12/12/2007EP1865745A1 Handset, electronic device, and communication device
12/12/2007CN200990691Y Planar loudspeaker and flat vibrating diaphragm used thereof
12/11/2007US7306073 Electroacoustic transducer comprising a membrane with a middle area comprising stiffening grooves
12/06/2007US20070278033 Acoustic Device And Method Of Making Acoustic Device
12/05/2007EP1862034A1 Electro-acoustic transducer
12/04/2007US7305248 Electronic device
12/04/2007US7302748 Linkage assembly for an acoustic transducer
11/2007
11/29/2007WO2007135746A1 Speaker unit
11/29/2007WO2007135745A1 Speaker device
11/29/2007US20070274543 Multifunction-Type Vibration Actuator And Mobile Terminal Device
11/29/2007US20070272475 Tangential stress reduction system in a loudspeaker suspension
11/28/2007EP1860912A1 Speaker
11/28/2007EP1859649A1 Membrane with high resistance against buckling and/or crinkling
11/27/2007US7302077 Electromagnetic driver for a planar diaphragm loudspeaker
11/21/2007EP1858290A1 Diaphragm for planar speaker and planar speaker
11/21/2007EP1856945A1 Loudspeaker
11/21/2007CN101076206A Capacity sound-transmitter vibration diaphragm and its capacity sound transmitter
11/21/2007CN100350817C 压电扬声器 Piezoelectric speaker
11/15/2007WO2007129721A1 Biaxially oriented polyarylene sulfide film
11/15/2007WO2007129685A1 Speaker
11/15/2007WO2007128748A1 Dome loudspeaker
11/15/2007WO2007107744A3 Lighting and sound reproduction
11/15/2007US20070263886 Transducer
11/15/2007US20070261912 Integrated audio speaker surround
11/15/2007DE102006021552A1 Kalotten-Lautsprecher Dome loudspeakers
11/14/2007EP1854332A2 Electromagnetic lever diaphragm audio transducer
11/14/2007EP1854331A1 Membrane for a dynamic converter
11/14/2007CN200976671Y Whole-sound loudspeaker
11/13/2007US7293463 Acoustoelectric conversion device
11/13/2007CA2392431C Contact sensitive device
11/08/2007US20070258604 Audiovisual Arrangement
11/07/2007EP1851995A2 Camera vision fire detector and system
11/06/2007US7292707 Loudspeaker
11/06/2007US7292702 In-wall speaker system method and apparatus
11/06/2007US7292503 Multi piston electro-mechanical transduction apparatus
11/06/2007US7290639 Method for manufacturing speaker-use center cap
11/01/2007US20070255539 Waveguide modeling and design system
10/2007
10/31/2007EP1850633A1 Piezoelectric speaker and method for manufacturing the same
10/31/2007EP1668955A4 Audio loudspeaker
10/31/2007DE202007010759U1 Lautsprecher Speaker
10/30/2007US7289638 Electroacoustic microphone
10/25/2007WO2007119709A1 Diaphragm unit and speaker using the same
10/25/2007WO2002078391A3 Bending wave acoustic radiator
10/25/2007US20070248236 Card-type sound apparatus and electronic appliance provided therewith
10/24/2007CN200966149Y Vibratory membrane structure for reducing the distortion rate
10/24/2007CN200966144Y Super-narrow double paper taper loudspeaker
10/24/2007CN101061750A Loudspeaker plastic cone body
10/24/2007CN101061746A Speaker
10/24/2007CN101061745A Loudspeaker with an acoustic membrane
10/24/2007CN101060725A Damper of rectangular-shaped slim speaker
10/23/2007US7286681 Loudspeaker
10/23/2007US7286680 Cylindrical microphone having an electret assembly in the end cover
10/18/2007WO2007117548A2 Loudspeaker driver
10/18/2007WO2007115588A1 Household appliance
10/18/2007WO2007115587A1 Household appliance
10/18/2007WO2007115349A1 An electrostatic loudspeaker
10/18/2007US20070242851 Loudspeaker
10/18/2007US20070242847 Capacitor Microphone
10/18/2007US20070242842 Method of Manufacturing Film-Speaker Using Piezoelectric Film and Sound Equipment with the Same
10/18/2007US20070242840 Condenser Microphone
10/18/2007DE202007008799U1 Dynamischer Lautsprecher Dynamic speaker
10/17/2007EP1845750A1 Speaker
10/16/2007US7283637 Exciting device
10/16/2007US7283636 Planar speaker
10/11/2007US20070235251 Speaker diaphragm and speaker
10/10/2007EP1843630A1 Electrodynamic electroacoustic transducer and electronic device
10/09/2007US7280668 Ceramic metal matrix diaphragm for loudspeakers
10/09/2007US7278513 Internal lens system for loudspeaker waveguides
10/09/2007US7278200 Method of tensioning a diaphragm for an electro-dynamic loudspeaker
10/04/2007US20070230277 Multi piston electro-mechanical transduction apparatus
10/03/2007EP1841280A1 Loudspeaker diaphragm
10/03/2007EP1839462A2 Coated speaker dome
10/02/2007US7277556 Vibrating plate of dynamic microphone, method of manufacturing the vibrating plate and dynamic microphone comprising the same
10/02/2007US7275620 Square speaker
10/02/2007CA2304765C Miniature full range loudspeaker
09/2007
09/27/2007WO2007107744A2 Lighting and sound reproduction
09/26/2007EP1838133A1 Speaker diaphragm and speaker
09/26/2007EP1838132A2 Speaker
09/26/2007CN200953652Y Structure improvement of loudspeaker monomer vibrating diaphragm base material
09/26/2007CN101044788A 扬声器 Speaker
09/26/2007CN101043765A Narrow speaker unit and image display apparatus
09/26/2007CN101041154A Electromagnetic vibrator and its preparing method
09/25/2007US7274798 Speaker device
09/20/2007WO2007105454A1 Plant for production of paper-made part for speaker, paper-made part for speaker produced thereby, and speaker utilizing the same
09/20/2007WO2007105449A1 Speaker-use diaphragm and speaker using it and its production die
09/20/2007US20070217646 Apparatus for acoustic loading of a diaphragm
09/19/2007EP1835782A2 Speaker
09/19/2007EP1834504A2 Loudspeaker having a movable cone body
09/19/2007CN101040561A Display device comprising a panel acoustic transducer, and transparent panel acoustic transducer
09/19/2007CN101040560A Speaker device
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