Patents
Sitemap › H04 - Electric communication technique › H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers; Deaf-aid sets; Public address systems › H04R 31 - Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
Patents for H04R 31 - Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor (5,050)
01/2004
01/15/2004US20040008863 Frequency response enhancements for electro-dynamic loudspeakers
01/15/2004US20040008862 Conductors for electro-dynamic loudspeakers
01/15/2004US20040008860 Speaker spider with integral lead wire arrangement and manufacturing method thereof
01/15/2004US20040008858 Acoustically enhanced electro-dynamic loudspeakers
01/14/2004CN1467974A Piezoelectric electroacoustic convertor
01/13/2004US6676879 Method of making vehicle interior trim panel with integral loudspeaker
01/08/2004DE10325091A1 Piezoelektrischer elektroakustischer Wandler A piezoelectric electro-acoustic transducer
01/07/2004EP1183904B8 Method for producing membranes for electroacoustic transducers and membranes obtained by this method
01/06/2004US6672423 Speaker and method of assembling the speaker
01/02/2004EP1377121A1 Device and method for manufacturing speaker diaphragm, the diaphragm, and speaker
12/2003
12/30/2003US6670686 Integrated sound transmitter and receiver, and corresponding method for making same
12/24/2003WO2003107718A1 Audio speaker and method for assembling an audio speaker
12/23/2003CA2340059C Micromechanical sensor and method for producing same
12/18/2003WO2003105526A1 Method for producing repulsion magnetic circuit and its production system
12/18/2003US20030231764 Audio earpiece for wideband telephone handsets
12/17/2003EP1372352A2 Earpiece for wideband telephone handsets
12/11/2003WO2003103334A1 An acoustically active element formed in a multi-layer circuit-board structure, a method for forming acoustically active element in a multi-layer circuit-board structure, and a multi-layer circuit-board structure
12/04/2003US20030223613 Speaker diaphragm and manufacturing method thereof
12/03/2003EP1366638A2 Method for manufacturing an electroacoustical transducer comprising a membrane configuration
12/02/2003US6655001 Process for a diaphragm for electroacoustic transducers
11/2003
11/27/2003WO2003098967A1 Edge for speaker diaphragm and method for manufacturing the same
11/18/2003US6650502 Thin-film magnetic head capable of narrowing track width and method of manufacturing the same
11/13/2003WO2003094571A2 Electro-dynamic planar loudspeakers
11/13/2003WO2003092916A1 Ultrasonic membrane transducer
11/12/2003EP1360685A1 Ultrasound transducer and method of manufacturing an ultrasound transducer
11/12/2003EP1101388B1 Louspeaker drive unit having a resonant panel-form member
11/12/2003CN1455618A Loudspeaker vibrating diaphragm base material structure and manufacturing method thereof
11/11/2003US6644182 Method of producing cone diaphragm having color patterns
11/06/2003WO2003092325A1 Composite piezoelectric vibrator
11/06/2003US20030205947 Ultrasonic membrane transducer for an ultrasonic diagnostic probe
11/04/2003US6640925 Loudspeaker diaphragm and method of manufacture thereof
10/2003
10/30/2003WO2002093972A3 Acoustic member for a loudspeaker comprising a component having a selected frequency dependence and method of making same
10/30/2003US20030201696 Piezoelectric transducer, manufacturing method of piezoelectric transducer and pulse wave detector
10/29/2003EP1357768A2 Piezoelectric electro-acoustic transducer
10/29/2003EP1356709A2 Manufacturing methods and systems for rapid production of hearing-aid shells
10/29/2003CN1452434A Microacoustic device based on clamped diaphragm structure and mfg. method thereof
10/28/2003US6639991 Electroacoustic transducer
10/23/2003WO2003088369A1 Composite piezoelectric body
10/23/2003WO2003087680A1 Thermoacoustic device
10/23/2003US20030200068 Apparatus and method for supporting speaker design, and program therefor
10/22/2003EP1183904B1 Method for producing membranes for electroacoustic transducers and membranes obtained by this method
10/22/2003CN1125576C Very thin loudspeaker and its manufacture method
10/22/2003CN1125154C Synthetic chloroprene rubber adhesive compsn. and process for producing speaker by using same
10/16/2003WO2003086010A1 Microspeaker and method for assembling a microspeaker
10/16/2003WO2003035281B1 Ultrasonic printed circuit board transducer
10/16/2003WO2003021303A3 Optical disk drive actuator assembly
10/16/2003WO2002082855A3 Loudspeaker
10/16/2003US20030194107 Audio speaker and method for assembling an audio speaker
10/16/2003US20030194106 Micro-speaker and method for assembling a micro-speaker
10/16/2003US20030192324 Thermoacoustic device
10/15/2003EP1353532A2 Apparatus and method for supporting speaker manufacturing, and program therefor
10/15/2003CN1449223A Edge body for loudspeaker and method for forming same
10/15/2003CN1449220A Loudspeaker design support device and loudspeaker design support method
10/15/2003CN1124772C Method for continuous mfg. sound mixing paper of microphone and its product assembly
10/09/2003US20030188919 Surround for speaker system and manufacturing method thereof
10/08/2003EP1351547A2 Surround for speaker system and manufacturing method thereof
10/02/2003US20030185407 Speaker for an electronic instrument
09/2003
09/30/2003US6628800 Electroacoustic transducer and method for manufacturing the same
09/30/2003US6628047 Broadband ultrasonic transducers and related methods of manufacture
09/30/2003US6627140 Method for manufacturing diaphragm for loudspeaker
09/25/2003WO2002065813A3 Method for manufacturing an electroacoustical transducer comprising a membrane configuration
09/25/2003US20030177631 Ion bombardment etch to stripe height
09/24/2003EP1345706A1 Method for making a multielement acoustic probe using a metallised and ablated polymer as ground plane
09/24/2003CN1122436C Loudspeaker vibrating diaphragm and methods for its production
09/23/2003US6622368 Method of manufacturing a transducer having a diaphragm with a predetermined tension
09/12/2003WO2003035281A3 Ultrasonic printed circuit board transducer
09/11/2003US20030169895 Method for producing electric-mechanical acoustic converter
09/11/2003US20030168945 Electromechanical transducer
09/10/2003EP1343354A1 Method for manufacturing speaker
09/09/2003US6617042 First coat of degassed polyester varnish applied under vacuum; second coat of degassed polyester varnish applied under vacuum while the first coat is still tacky; and third varnish coat applied and cured after first 2 coats are cured
08/2003
08/28/2003WO2003071832A1 Thin speaker and method of manufacturing the speaker
08/28/2003WO2002082856A3 Loudspeaker and method of making same
08/27/2003CN1438820A Loud-speaker and manufacturing method
08/26/2003US6610237 Method of making a loudspeaker drive unit having a resiliently suspended panel-form member
08/21/2003WO2003043747A3 Manufacture having double sided features in a metal-containing web formed by etching
08/21/2003WO2002030157A3 Manufacturing methods and systems for rapid production of hearing-aid shells
08/21/2003US20030156732 Speaker and method of manufacturing the same
08/20/2003EP1197120B1 Bending wave panel speaker and method of driving such a speaker
08/20/2003CN1118505C Moulding foamed products, its forming method and loudspeaker diaphragm constituted therewith
08/14/2003US20030151876 Universal fixture for HSA assembly and its testing process
08/14/2003US20030151105 Electrostatic electroacoustical transducer
08/14/2003US20030150572 Loudspeaker and method for the preparation thereof
08/14/2003US20030150273 Ultrasonic array transducer
08/12/2003US6605246 Ferroelectric relaxor polymer method
08/07/2003WO2003065765A1 Device and method for manufacturing speaker diaphragm, the diaphragm, and speaker
08/06/2003EP1333699A1 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
07/2003
07/30/2003CN1433662A Electromechanical transducer
07/24/2003WO2003059620A1 Improved dielectric coating for transduction drivers
07/23/2003EP0935741B1 Surface micro-mechanic ultrasonic transducer with integrated control circuit, and array
07/23/2003CN1115943C Loudspeaker and prepn. method
07/16/2003EP1166598B1 Electroacoustic transducer with a diaphragm, and method for fixing a diaphragm in such transducer
07/15/2003US6591938 Speaker diaphragm
07/10/2003US20030129429 Polyester varnishes; heat resistance, waterproofing
07/10/2003US20030128853 Broadband transducer controlled by magnetic field coupling
07/09/2003CN1429049A Electret condenser microphone and mfg. method
07/09/2003CN1428206A Ultrasonic transducer chip with variable acoustic impedance
07/03/2003WO2003055271A1 Micro-mechanical sensors and method for production thereof
07/03/2003US20030123682 Electret capacitor microphone and method for producing the same
07/02/2003CN1427430A Multi-layer electret with ultra-high charge stability and mfg. method thereof
06/2003
06/19/2003US20030113546 An FET film of 12.5 mu m*25 mu m in thickness melting-adheres to a surface of a metal plate, and a PTFE film of 30 mu m*100 mu m in thickness melting-adheres to the surface of the FEP film; high temperature resistance
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