| Patents for H04R 31 - Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor (5,050) |
|---|
| 04/21/2005 | US20050081368 Method and mechanism of the suspension resonance optimization for the hard disk driver |
| 04/20/2005 | EP1524880A2 Speaker and method of manufacturing the same |
| 04/20/2005 | EP1476301A4 Improved dielectric coating for transduction drivers |
| 04/20/2005 | CN1607863A Speaker and method of manufacturing the same |
| 04/20/2005 | CN1198481C Method for manufacturing speaker |
| 04/20/2005 | CN1198480C Acoustic device |
| 04/14/2005 | US20050078849 Speaker and method of manufacturing the same |
| 04/13/2005 | EP1444864B1 Micro-mechanical sensors and method for production thereof |
| 04/13/2005 | CN1606896A Method for manufacturing an electroacoustical transducer comprising a membrane configuration |
| 04/12/2005 | US6879700 Speaker and its production method of the same |
| 04/06/2005 | EP1520446A1 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 |
| 03/30/2005 | EP1410681B1 Production of non-planar membranes for electroacoustic converters |
| 03/30/2005 | CN1602118A Polarized zone control of silicon-base ferroelectric micro acoustic sensor and method of connecting electrode |
| 03/29/2005 | US6871724 Electroacoustic transducer frame and method of making the same |
| 03/24/2005 | DE19523974B4 Verfahren zur Herstellung einer Anpaß- oder Dämpfungsschicht oder einer akustischen Linse für eine Ultraschall-Wandleranordnung A process for the preparation of a matching or cushion layer or an acoustic lens for an ultrasonic transducer arrangement |
| 03/23/2005 | CN1599511A Magnesium diaphragm, method of manufacturing the same, and speaker apparatus |
| 03/22/2005 | US6870937 Electroacoustic transducer, process of producing the same and electroacoustic transducing device using the same |
| 03/16/2005 | CN1596036A Method for connecting two-piece silicon minisize microphone using organic adhesive |
| 03/16/2005 | CN1596035A An amendment process for chemical surface of silicon minisize electret acoustic sensor electricity storage membrane |
| 03/16/2005 | CN1596034A Method for manufacturing bidirectional loudspeaker and bidirectional loudspeaker manufactured thereby |
| 03/15/2005 | US6868167 Audio speaker and method for assembling an audio speaker |
| 03/10/2005 | US20050050715 Method of manufacturing thin-film magnetic head |
| 03/09/2005 | EP1512673A1 Method for manufacturing ceramic structure |
| 03/09/2005 | CN1592498A Method for mfg electret capacitance microphone |
| 03/09/2005 | CN1592497A Method for mfg. loadspeaker diaphragm |
| 03/09/2005 | CN1591565A Method for manufacturing a dynamic speaker |
| 03/03/2005 | WO2005020630A1 Loudspeaker having a composite diaphragm structure |
| 03/03/2005 | US20050046995 Large protrusion recording head for controlled magnetic spacing recording/reading |
| 03/03/2005 | DE202004017349U1 Tensioning device for holding two walls apart such as for the sides walls of a loud speaker using a sleeve with right and left threads |
| 03/02/2005 | EP1511356A1 Speaker |
| 03/02/2005 | EP1511355A1 Method for producing repulsion magnetic circuit and its production system |
| 03/02/2005 | EP1511354A2 Magnesium diaphragm, method of manufacturing the same, and speaker apparatus |
| 03/02/2005 | CN1589067A Working plate driving device for speaker |
| 03/01/2005 | US6859995 Universal fixture for HSA assembly and its testing process |
| 02/24/2005 | WO2004114717A3 Improvements to loudspeaker driver assemblies |
| 02/24/2005 | US20050041828 Magnesium diaphragm, method of manufacturing the same, and speaker apparatus |
| 02/24/2005 | DE10297480T5 Methode um ein piezoelektrisches Bauteil, herzustellen, piezoelektrisches Bauteil Ultraschallsonde, Ultraschalldiagnostikgerät, nicht zerstörendes Testgerät Method to produce a piezoelectric component, piezoelectric device ultrasound probe, ultrasonic diagnostic apparatus, non-destructive test apparatus |
| 02/24/2005 | DE102004036357A1 Verfahren zur Herstellung eines dynamischen Lautsprechers A method for producing a dynamic speaker |
| 02/22/2005 | US6859544 Magnetic circuit for speaker, method of manufacture thereof, and speaker using same |
| 02/22/2005 | US6857501 Microelectromaching systems (MEMS) using compatible polyxylylenes replacing silicon nitride in a high-temperature semiconductor process; increased sensitivity/flexibility; stress-relieving; hearing aids; telephones |
| 02/17/2005 | WO2005015951A1 Case with insert terminal and piezoelectric electroacoustic transducer using this case, process for manufacturing case with insert terminal |
| 02/17/2005 | US20050036647 Acoustic transducer with mechanical balancing |
| 02/17/2005 | US20050036646 Magnet retention system in planar loudspeakers |
| 02/16/2005 | CN1582065A Microphone chip and its preparation method |
| 02/16/2005 | CN1582064A Chip for silicon micro capacitor microphone and its preparation method |
| 02/10/2005 | US20050028348 Method for manufacturing an electroacoustical transducer comprising a membrane configuration |
| 02/09/2005 | EP1503871A1 Ultrasonic membrane transducer |
| 02/09/2005 | CN1578541A Method for producing vibrating parts of loudspeaker and vibrating parts for loudspeaker |
| 02/08/2005 | US6851178 Process of manufacturing a magnetic write head |
| 02/03/2005 | WO2005009219A2 Method for making a spiral array ultrasound transducer |
| 02/03/2005 | US20050022366 Method for manufacturing a dynamic speaker |
| 02/02/2005 | EP1503611A2 Integrated base and electret condenser microphone using the same |
| 02/02/2005 | CN1575210A 超声波印刷电路板换能器 Ultrasonic transducers printed circuit board |
| 02/02/2005 | CN1575040A Speaker and method of manufacturing the same |
| 02/02/2005 | CN1575039A Speaker and manufacturing method for the same |
| 02/02/2005 | CN1575038A Resin-molded component and method for manufacturing thereof as well as diaphragm for loudspeaker |
| 02/02/2005 | CN1575032A Speaker cabinet |
| 02/01/2005 | US6848168 Method for controlling installation of a head stack assembly |
| 01/27/2005 | WO2005009077A1 Sound detection mechanism |
| 01/27/2005 | US20050018869 Electroacoustic transducer and process for producing the same |
| 01/27/2005 | US20050015953 Method for making a spiral array ultrasound transducer |
| 01/26/2005 | EP1499839A1 Thermoacoustic device |
| 01/26/2005 | CN1571582A Mini-acoustical device based on magneto resistor effect |
| 01/20/2005 | WO2004036952A3 Membrane and method for the production thereof |
| 01/20/2005 | US20050012429 Piezoelectric body manufacturing method, piezoelectric body, ultrasonic probe, ultrasonic diagnosing device, and nondestructive inspection device |
| 01/19/2005 | CN1568635A Method for producing repulsion magnetic circuit and its production system |
| 01/18/2005 | US6845169 Speaker parts and method of manufacturing same |
| 01/13/2005 | US20050008187 Speaker cabinet |
| 01/13/2005 | US20050005430 Method for producing repulsion magnetic circuit and its production system |
| 01/12/2005 | EP1496553A1 Composite piezoelectric body |
| 01/12/2005 | CN2671277Y Couductive embedding seat for unitary packed piazo-exciter |
| 01/12/2005 | CN1184851C Electro-acoustic transducer and its producing method |
| 01/11/2005 | US6842088 Thin film acoustic resonator and method of producing the same |
| 01/06/2005 | US20050000932 Multi-metal layer MEMS structure and process for making the same |
| 01/05/2005 | EP1494503A1 Capacitor sensor |
| 01/05/2005 | EP1493301A1 Microspeaker and method for assembling a microspeaker |
| 12/30/2004 | US20040265564 Resin-molded component and method for manufacturing thereof as well as diaphragm for loudspeaker |
| 12/30/2004 | US20040261251 Ultrasonic printed circuit board transducer |
| 12/29/2004 | WO2004114720A1 Electromechanical transducer and a manufacturing method |
| 12/29/2004 | WO2004114717A2 Improvements to loudspeaker driver assemblies |
| 12/29/2004 | WO2004095881A3 Beryllium acoustic transducer |
| 12/29/2004 | EP1492383A1 Process for producing a hearing device and hearing device |
| 12/29/2004 | CN1559160A Method for manufacturing diaphragm for speaker |
| 12/23/2004 | US20040259286 Micromechanical sensors and methods of manufacturing same |
| 12/22/2004 | EP1489881A1 Planar speaker |
| 12/22/2004 | CN2666074Y Chip with high sensitivity used for silicon micro-capacitance microphone |
| 12/22/2004 | CN2666073Y Chip with high sensitivity used for silicon micro-capacitance microphone |
| 12/22/2004 | CN2666072Y Chip used for silicon micro-capacitance microphone |
| 12/16/2004 | US20040253760 Method to fabricate a highly perforated silicon diaphragm with controlable thickness and low stress |
| 12/15/2004 | EP1486322A1 Resin-molded component and method for manufacturing thereof as well as diaphragm for loudspeaker |
| 12/14/2004 | US6829814 Process of making an all-silicon microphone |
| 12/09/2004 | US20040247152 Production of non-planar membranes for electroacoustic convertes |
| 12/08/2004 | CN1554210A An electro-acoustic transducer with two diaphragms |
| 12/08/2004 | CN1553744A Manufacture of laminated drum papers and products thereby |
| 12/07/2004 | US6826816 Multi-layer multi-dimensional transducer and method of manufacture |
| 12/02/2004 | WO2004105428A1 Fabrication of silicon microphones |
| 12/02/2004 | US20040240702 Speaker and manufacturing method for the same |
| 12/01/2004 | EP1482762A2 Speaker and method of manufacturing the same |
| 12/01/2004 | EP1482761A2 Speaker and manufacturing method for the same |
| 12/01/2004 | CN1551682A Magnesium diaphragm, method for manufacturing the same, and speaker using the diaphragm |