| Patents for H04R 31 - Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor (5,050) |
|---|
| 07/01/2004 | DE10304623B3 Foam wind protection member for a microphone, is formed by placing a foam blank on a mandrel, rotating it, and milling it to the desired contours |
| 06/30/2004 | EP1287720B1 Electromechanical transducer |
| 06/29/2004 | US6757404 Loud speaker, diaphragm and process for making the diaphragm |
| 06/29/2004 | US6756248 Pressure transducer and manufacturing method thereof |
| 06/24/2004 | US20040120531 Microphones with equal sensitivity |
| 06/23/2004 | CN1507766A Loudspeaker and method of making same |
| 06/23/2004 | CN1507302A Loudspeaking device |
| 06/22/2004 | US6753583 Electrostatic electroacoustical transducer |
| 06/22/2004 | US6752906 Loudspeaker and method for the preparation thereof |
| 06/17/2004 | WO2004052051A1 Voice coil insertion jig, speaker producing method using the jig, and speaker produced by using the jig |
| 06/17/2004 | US20040114775 Condenser microphone and method for making the same |
| 06/17/2004 | US20040112672 Loudspeaker diaphragm and method for manufacturing the same |
| 06/16/2004 | EP1429582A2 Loudspeaker diaphragm and method for manufacturing the same |
| 06/16/2004 | CN1505438A Capacitor type microphone and micro-electromechanical processing and manufacturing method thereof |
| 06/10/2004 | WO2004049757A1 An apparatus for energy transfer in a balanced receiver assembly and manufacturing method thereof |
| 06/10/2004 | WO2004049756A1 An apparatus for creating acoustic energy in a balance receiver assembly and manufacturing method thereof |
| 06/10/2004 | US20040109582 Speaker device |
| 06/09/2004 | EP1427248A2 Speaker device |
| 06/09/2004 | EP1426941A1 Optical recording medium |
| 06/03/2004 | DE19718370B4 Verfahren zum Herstellen einer Membran eines Drucksensors oder akustischen Wandlers und akustischer Wandler oder Drucksensor A method of manufacturing a diaphragm of a pressure sensor or transducer and acoustic transducer or pressure sensor |
| 06/03/2004 | DE10201459B4 Dämpfungssicke für Lautsprecher und Verfahren zur Herstellung einer Dämpfungssicke für Lautsprecher Damping ring for speaker and method for producing a damping ring for speakers |
| 06/01/2004 | US6742622 Injection molding of foaming agent-containing resin having three-layered structure |
| 05/27/2004 | US20040100163 Method for making electrical connection to ultrasonic transducer through acoustic backing material |
| 05/26/2004 | EP1422970A2 Transducer of the piezo-electric type |
| 05/26/2004 | CN1500364A Loudspeaker |
| 05/25/2004 | US6740202 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 |
| 05/20/2004 | US20040094868 Equipment and method of manufacturing an amplifier |
| 05/20/2004 | US20040094357 Method for manufacturing diaphragm for loudspeaker, diaphragm for loudspeaker made thereby, and loudspeaker using the same |
| 05/20/2004 | US20040094356 Application of primer after corona discharge, and surface treatment of the loudspeaker diaphragm by the gas plasma treatment method using parallel flat electrodes |
| 05/20/2004 | US20040093719 Planarization process for thin film surfaces |
| 05/19/2004 | CN1498513A Miniature broadband transducer |
| 05/19/2004 | CN1498034A Microphone with same sensitivity |
| 05/19/2004 | CN1498032A Manufacturing device and method of loudspeaker integral display |
| 05/13/2004 | US20040088851 Microphone assembly |
| 05/12/2004 | CN1496663A Device and method for manufacturing speaker diaphragem, diaphragm made from said method, and speaker |
| 05/12/2004 | CN1496190A Border for loudspeaker vibrating membrane and its making method |
| 05/11/2004 | US6732421 Directing focused ion beam onto area of substrate including transducer element, monitoring property level of transducer as ion beam acts on magnetoresistive element until property level reaches desired level, redirecting ion beam, repeating process |
| 05/06/2004 | WO2004039125A1 Electroacoustic transducer and process for producing the same |
| 05/06/2004 | US20040086146 Magnetic circuit for speaker, method of manufacture thereof, and speaker using same |
| 05/06/2004 | EP1416763A1 Magnetic circuit for speaker, method of manufacture thereof, and speaker incorporating same |
| 05/06/2004 | EP1012547B1 Miniature semiconductor condenser microphone |
| 05/06/2004 | DE19921210B4 Verfahren zur Herstellung von Membranen für die Verwendung in elektroakustischen Wandlern Process for the preparation of membranes for use in electroacoustic transducers |
| 05/06/2004 | DE10248764A1 Hearing aid housing is formed by injection molding, in a butterfly process, where the housing sections are linked by film hinges with edge clip structures for a snap lock action |
| 05/06/2004 | DE10247487A1 Membran und Verfahren zu deren Herstellung Membrane and processes for their preparation |
| 05/05/2004 | CN1494354A Improved vibration membrane base material construction unit of loudspeaker and its manufacturing method |
| 05/04/2004 | US6731766 Condenser microphone and production method thereof |
| 04/29/2004 | WO2004036952A2 Membrane and method for the production thereof |
| 04/29/2004 | US20040081326 Transducer |
| 04/29/2004 | US20040080867 High data rate writer with low resistance coil and short yoke |
| 04/29/2004 | US20040079505 Paper tank; pulp dispersion reservoir; stirring; drainage |
| 04/29/2004 | DE10248034A1 Production of cone diaphragm having color patterns used on a loudspeaker to transmit sound, involves soaking the printed base material in high molecular resin material, and printing a layer of high molecular ink over the base material |
| 04/27/2004 | US6725670 Thermoacoustic device |
| 04/22/2004 | DE10296795T5 Akustischer Dünnfilmvolumenresonator und Verfahren zu seiner Herstellung Acoustic Dünnfilmvolumenresonator and process for its preparation |
| 04/22/2004 | DE10197068T5 Multidimensionales Feld und dessen Herstellung Multidimensional array and its preparation |
| 04/21/2004 | EP1411747A2 Speaker surround and method for producing the same |
| 04/21/2004 | EP1410681A1 Production of non-planar membranes for electroacoustic converters |
| 04/20/2004 | US6724908 Method for producing electric-mechanical acoustic converter |
| 04/20/2004 | US6724058 Method for producing a filled recess in a material layer, and an integrated circuit configuration produced by the method |
| 04/14/2004 | EP1408716A2 Microphones with equal sensitivity |
| 04/08/2004 | WO2004030406A1 Electroacoustic transducer |
| 04/08/2004 | DE10010491B4 Geformte Lautsprechermembran und Verfahren zu deren Ausformung Shaped loudspeaker diaphragm and methods for their formation |
| 04/07/2004 | CN1145219C Pressure converter and its mfg. method |
| 04/01/2004 | US20040062415 Voice coil bobbin |
| 04/01/2004 | US20040061543 Flexible MEMS transducer and manufacturing method thereof, and flexible MEMS wireless microphone |
| 03/31/2004 | EP1404149A2 Voice coil bobbin |
| 03/31/2004 | EP1403214A2 Flexible MEMS transducer manufacturing method |
| 03/31/2004 | EP1403212A2 Flexible mems transducer and manufacturing method thereof, and flexible mems wireless microphone |
| 03/25/2004 | US20040057595 Condenser microphone and method for manufacturing condenser microphones |
| 03/23/2004 | US6708387 Method for manufacturing condenser microphones |
| 03/18/2004 | US20040052387 Piezoelectric film emitter configuration |
| 03/18/2004 | US20040049901 Method for making a multielement acoustic probe using a metallised and ablated polymer as ground plane |
| 03/18/2004 | US20040049900 Multi-layer multi-dimensional transducer and method of manufacture |
| 03/17/2004 | EP1398298A2 Process of making an all-silicon microphone |
| 03/17/2004 | EP1312241B1 Electrostatic electroacoustical transducer |
| 03/10/2004 | CN1481284A Method for making multielement acoustic probe using metallised and ablated polymer as ground plane |
| 03/10/2004 | CN1481196A Electroacoustic transducer and its mfg. method |
| 03/10/2004 | CN1141857C Electroacoustic transducer |
| 03/04/2004 | US20040042633 Electroacoustic transducer and method for manufacturing the same |
| 03/03/2004 | CN1480010A Ultra-thin type capacity microphone assembly and method for assembling the same |
| 03/02/2004 | US6700988 Speaker spider with integral lead wire arrangement and manufacturing method thereof |
| 03/02/2004 | US6700986 Microphone characteristic adjustment device |
| 02/19/2004 | WO2004016042A1 Audio speaker cone apparatus and method of manufacture |
| 02/19/2004 | US20040031891 Mounting bracket system |
| 02/18/2004 | CN1476276A Integrated structure of loudspeaker magnetic conductance seat and its processing method |
| 02/17/2004 | US6691832 Speaker |
| 02/12/2004 | WO2003094571A3 Electro-dynamic planar loudspeakers |
| 02/12/2004 | US20040029296 Magnetoresistive memory and method of manufacturing the same |
| 02/12/2004 | US20040026585 Electro-dynamic loudspeaker mounting system |
| 02/12/2004 | US20040026164 Speaker diaphragm edge and its manufacturing method |
| 02/11/2004 | EP1388274A2 Acoustic member for a loudspeaker comprising a component having a selected frequency dependence and method of making same |
| 02/10/2004 | US6690809 Microspeaker |
| 02/05/2004 | US20040022409 Film attaching system |
| 02/05/2004 | US20040022408 Frame structure |
| 02/05/2004 | US20040022407 Film tensioning system |
| 02/05/2004 | US20040022406 Magnet arrangement for loudspeaker |
| 01/22/2004 | US20040012307 Ultrasonic transducer and method of manufacturing the same |
| 01/21/2004 | CN1135902C Dome Loudspeaker and producing method thereof |
| 01/20/2004 | US6680430 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 |
| 01/15/2004 | WO2004006623A2 Multilayer loudspeaker diaphragm |
| 01/15/2004 | US20040009716 Electrical connectors for electro-dynamic loudspeakers |