| Patents for H04R 31 - Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor (5,050) |
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| 11/26/2002 | US6484842 Custom-molded ear-plug, and process for producing a custom-molded ear-plug device |
| 11/21/2002 | WO2002093972A2 Acoustic member for a loudspeaker comprising a component having a selected frequency dependence and method of making same |
| 11/21/2002 | WO2002093549A1 Thin film acoustic resonator and method of manufacturing the resonator |
| 11/21/2002 | US20020172387 Microphone assembly |
| 11/21/2002 | US20020172383 Condenser microphone and method for manufacturing condenser microphones |
| 11/21/2002 | US20020170774 Speaker parts and method of manufacturing same |
| 11/14/2002 | US20020168077 Microphone characteristic adjustment device |
| 11/14/2002 | US20020168073 Electret condenser microphone and method of producing same |
| 11/13/2002 | EP1257150A2 Electret condenser microphone and method of producing same |
| 11/07/2002 | WO2002052544A3 Multidimensional array and fabrication thereof |
| 11/06/2002 | EP0685983B1 Magnetic circuit unit for loud-speaker and method of manufacturing the same |
| 10/31/2002 | US20020160678 Cloth for loudspeaker diaphragm, loudspeaker diaphragm, and loudspeaker |
| 10/31/2002 | US20020159200 Method of manufacture of a composite shared pole design for magnetoresistive merged heads and device manufactured thereby |
| 10/29/2002 | US6473515 Cap and center pole apparatus and method of coupling |
| 10/29/2002 | CA2126526C Diaphragm for use with an electro-acoustic transducer and method of producing the same |
| 10/24/2002 | WO2002015636A3 Miniature broadband transducer |
| 10/24/2002 | US20020153809 Single crystal thickness and width cuts for enhanced ultrasonic transducer |
| 10/24/2002 | US20020153194 Loudspeaker diaphragm and method of manufacture thereof |
| 10/17/2002 | WO2002082856A2 Loudspeaker and method of making same |
| 10/17/2002 | WO2002082855A2 Loudspeaker |
| 10/17/2002 | US20020148104 Head stack assembly installation system for a disc drive |
| 10/16/2002 | CN1092917C Loudspeaking damper |
| 10/15/2002 | US6465937 Single crystal thickness and width cuts for enhanced ultrasonic transducer |
| 10/09/2002 | EP1248495A2 Speaker voice coil bobbin and method of manufacturing same |
| 10/09/2002 | EP1248493A2 Speaker diaphragm and method of manufacturing same |
| 10/03/2002 | US20020141609 Speaker voice coil bobbin and method of manufacturing same |
| 10/03/2002 | US20020140136 Formed from a material combining a fiber- type material and a ceramic-type-coating agent including metal alkoxide, metal hydroxide, and a colloidal fine parataiculate inorganic substance |
| 09/26/2002 | WO2002017677A3 Electrostatic electroacoustical transducer |
| 09/17/2002 | US6452756 Thin-film magnetic head and method of manufacturing same and thin-film magnetic head material and method of manufacturing same |
| 09/12/2002 | US20020124369 Method of manufacturing an ultrasound transducer and ultrasound transducer obtained by means of the method |
| 09/04/2002 | EP1147681B1 Resonant panel-form loudspeakers |
| 08/28/2002 | EP1235462A1 Speaker device, and method and device for producing the same |
| 08/27/2002 | US6441451 Pressure transducer and manufacturing method thereof |
| 08/22/2002 | WO2002065813A2 Method for manufacturing an electroacoustical transducer comprising a membrane configuration |
| 08/15/2002 | WO2002063606A1 Ultrasound transducer and method of manufacturing an ultrasound transducer |
| 08/15/2002 | US20020110257 Method for manufacturing an electroacoustical transducer comprising a membrane configuration |
| 08/13/2002 | US6433674 Electromagnetic sound generator |
| 08/07/2002 | CN2504866Y Improved acoustics system wiring structure |
| 08/01/2002 | WO2001087008A3 Armature for a receiver |
| 08/01/2002 | US20020100635 Speaker diaphragm |
| 08/01/2002 | DE10201459A1 Dämpfungssicke für Lautsprecher und Herstellungsverfahren Damping ring for speakers and manufacturing processes |
| 07/25/2002 | US20020096298 Sheet-like member of very fine glass particles and polyamide; formed by a paper-making technique; input resistance properties; moisture-proofness; heat resistance; interfacial polymerization |
| 07/24/2002 | EP1075688B1 Method of applying a matching layer to a transducer |
| 07/23/2002 | US6423412 Polyvinylidine fluoride co/homopolymer layers exhibiting piezoelectricity; capacitors; annealing; radiation |
| 07/18/2002 | US20020094106 Damper for loudspeaker and method for manufacturing same |
| 07/18/2002 | US20020093038 Pressure transducer and manufacturing method thereof |
| 07/16/2002 | US6420818 Electroacoustic transducer |
| 07/11/2002 | US20020090517 Ferroelectric relaxor polymers |
| 07/10/2002 | CN1358400A Panel driver |
| 07/10/2002 | CN1358051A Magnetic path of miniature loudspeaker |
| 07/10/2002 | CN1087583C Method of fabricating electroacoustic transducer |
| 07/04/2002 | WO2002052544A2 Multidimensional array and fabrication thereof |
| 07/03/2002 | EP0966862B1 Loudspeaker and method for producing the same |
| 07/02/2002 | US6413575 Method of applying a matching layer to a transducer |
| 06/27/2002 | WO2002049775A1 Method for making a multielement acoustic probe using a metallised and ablated polymer as ground plane |
| 06/20/2002 | WO2002049393A1 Ultra-thin type condenser microphone assembly and method for assembling the same |
| 06/19/2002 | EP1215934A2 Multifunction acoustic device |
| 06/13/2002 | US20020071590 Magnetic circuit of micro speaker |
| 06/12/2002 | CN1353915A Method for producing membranes for electroacoustic transducers and membranes obtained by this method |
| 06/12/2002 | CN1353564A Micro loudspeaker |
| 06/06/2002 | US20020067663 Miniature broadband acoustic transducer |
| 06/05/2002 | CN1352515A Monolithic integrated capacitor type silicon base micro microphone and its producing process |
| 06/04/2002 | US6397972 Loudspeakers |
| 05/30/2002 | US20020064294 Speaker apparatus and manufacturing method thereof |
| 05/30/2002 | US20020063496 Actuator device |
| 05/29/2002 | EP1207970A2 Electrostatic ultrasonic transducer and method of making the same |
| 05/28/2002 | US6396198 Wave transmission-reception element for use in ultrasound probe, method for manufacturing the wave transmission-reception element and ultrasound probe incorporating the transmission-reception element |
| 05/28/2002 | US6393692 Method of manufacture of a composite shared pole design for magnetoresistive merged heads |
| 05/23/2002 | WO2002041667A1 Method for manufacturing speaker |
| 05/23/2002 | US20020061117 Loud speaker, diaphragm and process for making the diaphragm |
| 05/22/2002 | EP1207719A2 Loudspeaker, diaphragm and making process for diaphragm |
| 05/21/2002 | US6389902 Micromechanical sensor and method for its production |
| 05/16/2002 | US20020057812 Electret condenser microphone and method of producing same |
| 05/09/2002 | US20020054688 Microspeaker |
| 05/08/2002 | EP1204297A2 Microspeaker |
| 05/02/2002 | WO2002035883A1 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 |
| 05/02/2002 | CA2395686A1 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 |
| 04/30/2002 | US6378649 Speaker member and manufacturing method thereof |
| 04/30/2002 | US6378182 Method of applying a matching layer to a transducer |
| 04/25/2002 | WO2000074915A3 Method of producing hearing aids and a hearing aid |
| 04/24/2002 | CN1346231A Electret capacitance microphone and making method |
| 04/18/2002 | WO2002032187A1 Speaker device, and method and device for producing the same |
| 04/18/2002 | US20020043424 Damper for speaker and method of producing the same |
| 04/17/2002 | EP1197120A2 Bending wave panel speaker and method of driving such a speaker |
| 04/17/2002 | CN1345525A Bending wave loudspeakers |
| 04/16/2002 | US6372066 Vibration exciter |
| 04/11/2002 | WO2002030157A2 Manufacturing methods and systems for rapid production of hearing-aid shells |
| 04/11/2002 | CA2685458A1 Manufacturing methods and systems for rapid production of hearing-aid shells |
| 04/09/2002 | US6368546 Molding method and apparatus using film as molding material |
| 04/03/2002 | EP1193777A2 Method of manufacturing piezoelectric elements using sacrificial material |
| 04/02/2002 | US6364966 Method for manufacturing acoustic vibration plate |
| 03/28/2002 | US20020036447 Piezoelectric element and method of manufacturing same |
| 03/21/2002 | US20020034315 Loudspeaker spider, method of making it and loudspeaker incorporating it |
| 03/20/2002 | CN1341254A Electroacoustic transducer and method of manufacture thereof |
| 03/14/2002 | US20020029925 Loudspeakers |
| 03/13/2002 | CN1340281A Cloth for loudspeaker diaphragm, loudspeaker diaphragm and loudspeaker |
| 03/07/2002 | US20020027999 Acoustic device |
| 03/07/2002 | US20020027998 Electroacoustic transducer |
| 03/07/2002 | US20020027040 Molded foam resin, process for forming the same and speaker diaphragm consisting of the same |
| 03/06/2002 | EP1183904A1 Method for producing membranes for electroacoustic transducers and membranes obtained by this method |