| Patents for H04R 31 - Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor (5,050) |
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| 07/02/2013 | US8474128 Planarization methods for patterned media disks |
| 07/02/2013 | US8474127 Method for enhancing thermal stability, improving biasing and reducing damage from electrostatic discharge in self-pinned abutted junction heads |
| 06/27/2013 | US20130163807 Electro-acoustic transducer and method of manufacturing the same |
| 06/26/2013 | CN203027493U Machine for fabricating racetrack type voice coil |
| 06/26/2013 | CN203027492U Machine for fabricating flat wire voice coil |
| 06/26/2013 | CN203027491U Double-horn pressing and assembling device |
| 06/26/2013 | CN203027470U Vibrating diaphragm applicable to medium-high frequency sound production unit |
| 06/26/2013 | CN203027468U Vibrating diaphragm having low-frequency compensation function |
| 06/26/2013 | CN103179497A Raw material used for sound equipment vibrating plate and preparation method thereof |
| 06/26/2013 | CN103179496A Audio test method and system for earphone microphone and receiver of mobile terminal |
| 06/26/2013 | CN101951538B Loudspeaker flap basin and preparation process thereof |
| 06/26/2013 | CN101415142B Method for manufacturing disposable microphone cover |
| 06/26/2013 | CN101378605B Ultrasonic transducer, method of manufacturing ultrasonic transducer, ultrasonic diagnostic apparatus, and ultrasonic microscope |
| 06/25/2013 | US8472649 Push-pull type speaker device and method of manufacturing the same |
| 06/25/2013 | US8468683 High bevel angle magnetic writer pole fabrication process |
| 06/25/2013 | US8468682 Method for manufacturing perpendicular magnetic recording transducers |
| 06/25/2013 | CA2586928C Loudspeaker plastic cone body |
| 06/20/2013 | WO2013089239A1 Actuator for vibrating a soundboard in a musical instrument and method for attaching same |
| 06/20/2013 | US20130156242 Handheld computing device |
| 06/20/2013 | US20130155817 Cell, element of ultrasonic transducer, ultrasonic transducer including the same, and method of manufacturing cell of ultrasonic transducer |
| 06/19/2013 | CN203015101U Voice coil |
| 06/19/2013 | CN203015060U Sound box ultrasonic welding structure |
| 06/19/2013 | CN103167364A Multi-functional microphone assembly and method of manufacturing the same |
| 06/19/2013 | CN101827293B 5.1 sound channel bass reflex type earphone and manufacture method thereof |
| 06/19/2013 | CN101395961B Plant for production of paper-made part for speaker, paper-made part for speaker produced thereby, and speaker utilizing the same |
| 06/18/2013 | US8464418 Method for temperature compensation in MEMS resonators with isolated regions of distinct material |
| 06/13/2013 | US20130148837 Multi-functional microphone assembly and method of manufacturing the same |
| 06/13/2013 | US20130145611 Diagnostic ultrasound transducer |
| 06/12/2013 | CN202998478U Loudspeaker dust cap revolving table |
| 06/12/2013 | CN202998477U Loudspeaker dust cap glue taking device |
| 06/12/2013 | CN202998476U Loudspeaker dust cap material taking device |
| 06/12/2013 | CN103152690A Drum paper forming pressing mold |
| 06/12/2013 | CN103152689A Horn basin frame for improving voice coil concentricity and manufacture method for horn |
| 06/12/2013 | CN103152688A Manufacture method of vibrating membrane of horn |
| 06/12/2013 | CN103152680A Sound-generating devices |
| 06/12/2013 | CN102134054B Method for fabricating MEMS device |
| 06/12/2013 | CN101877809B Electro-dynamic loudspeaker and ventilation method thereof |
| 06/11/2013 | US8462978 Loudspeaker diaphragm |
| 06/11/2013 | US8458891 Method of centering a disk of hard disk drive |
| 06/06/2013 | WO2013081078A1 Electrostatic speaker |
| 06/06/2013 | US20130142374 Microphone assembly having ear set function and method of manufacturing the same |
| 06/06/2013 | US20130139377 Method of manufacturing resonant transducer |
| 06/05/2013 | EP2599747A2 Method of manufacturing resonant transducer |
| 06/05/2013 | CN202979282U Sound box plastic die capable of wire drawing during die opening processes |
| 06/05/2013 | CN202979275U Encapsulation structure of microphone |
| 06/05/2013 | CN103139694A Microphone package technology and package structure according to technology |
| 06/05/2013 | CN103139691A Micro-electromechanical system (MEMS) silicon microphone utilizing multi-hole signal operation instruction (SOI) silicon bonding and manufacturing method thereof |
| 06/05/2013 | CN103139676A Microphone assembly having ear set function and method of manufacturing the same |
| 06/05/2013 | CN103130176A Micromechanical functional apparatus, particularly a loudspeaker apparatus, and appropriate method of manufacture |
| 06/05/2013 | CN101729961B Integrated vibration plate for a microspeaker, making method thereof and microspeaker |
| 06/05/2013 | CN101282594B Encapsulation structure for Micro-electromechanical microphone with two-sided mounting-pasted electrode |
| 06/04/2013 | US8453317 Magnetic write head fabrication with integrated electrical lapping guides |
| 06/04/2013 | US8453316 Method of manufacturing magnetic head having a patterned pole layer and method of forming a patterned layer |
| 06/04/2013 | US8453315 Method of producing a perpendicular magnetic disc |
| 06/04/2013 | US8453312 Method of manufacturing vibrating micromechanical structures |
| 05/30/2013 | US20130136280 Microspeaker with piezoelectric, metal and dielectric membrane |
| 05/30/2013 | US20130133179 Method of manufacturing boundary acoustic wave device |
| 05/29/2013 | CN103124394A Silicon wheat automatic detector |
| 05/28/2013 | US8448329 Method of manufacturing an integrated lead head suspension flexure |
| 05/28/2013 | US8448326 Method of manufacturing an accelerometer |
| 05/23/2013 | WO2013071951A1 Mems microphone with reduced parasitic capacitance |
| 05/23/2013 | WO2013005174A3 Systems, methods, and articles of manufacture for configuring hearing prostheses |
| 05/23/2013 | WO2013001508A3 Systems, methods, and article of manufacture for configuring a hearing prosthesis |
| 05/23/2013 | US20130129131 Shielding of behind-the-ear hearing aids |
| 05/23/2013 | US20130129121 Electrostatic loudspeaker and method of producing electrostatic loudspeaker |
| 05/23/2013 | US20130129118 Micro-electro-mechanical microphone and method for manufacturing the same |
| 05/23/2013 | US20130127297 Ultrasound transducer and processing methods thereof |
| 05/22/2013 | CN202949570U Inside weld type novel process voice diaphragm demolding device |
| 05/21/2013 | US8443510 Method for utilizing an electronic lapping guide for a beveled pole in a magnetic recording transducer |
| 05/16/2013 | US20130123919 Methods and devices for radio frequency (rf) mitigation proximate the ear |
| 05/15/2013 | EP2591616A1 Drive pin forming method and assembly for a transducer |
| 05/15/2013 | EP2591611A1 Earphone driver and method of manufacture |
| 05/15/2013 | CN103109547A Mass loading for piston loudspeakers |
| 05/15/2013 | CN103108273A Armature device of moving iron unit and manufacturing method thereof |
| 05/14/2013 | US8438721 Method to assemble disk drive |
| 05/10/2013 | WO2013028399A3 Acoustic apparatus and method of manufacturing |
| 05/08/2013 | CN202931555U MEMS microphone |
| 05/08/2013 | CN202931524U Ear hook and earphone |
| 05/08/2013 | CN103096238A Method of manufacturing microphone unit |
| 05/08/2013 | CN103096237A Multifunctional device used for assembling and testing driven-by-wire headset |
| 05/08/2013 | CN103096236A Magnetic steel assembling fixture |
| 05/08/2013 | CN103096235A Mems process and device |
| 05/08/2013 | CN101815235B Miniature MEMS condenser microphone packages and fabrication method thereof |
| 05/02/2013 | US20130108084 MEMS Microphone with Spring Suspended Backplate |
| 05/02/2013 | US20130104384 Microphone with Irregular Diaphragm |
| 05/02/2013 | DE102011085511A1 Membran zum Abdecken einer Öffnung in einem Hörgerät Membrane for covering an opening in a hearing aid |
| 05/01/2013 | EP2586215A1 Loudspeaker enclosure consisting of stone and method for manufacturing same |
| 05/01/2013 | CN202918463U Metal ring in earphone jacket mould assembly |
| 05/01/2013 | CN103079162A Integrated loudspeaker, sound box and manufacturing method |
| 05/01/2013 | CN103079135A Bone-conduction headset device with single magnet and processing method thereof |
| 05/01/2013 | CN102056075B Winding machine for paper tube-type voice coil |
| 05/01/2013 | CN101909238B Process method for loudspeaker with compound magnetic circuit |
| 04/30/2013 | US8429808 Method for fabrication an electrical transducer |
| 04/25/2013 | US20130100779 Acoustic sensor and fabrication method thereof |
| 04/25/2013 | US20130100778 Source for marine seismic acquisition and method |
| 04/25/2013 | US20130100775 System and method for providing discrete ground connections for individual elements in an ultrasonic array transducer |
| 04/24/2013 | CN202907183U Elastic wave forming pressing mould |
| 04/24/2013 | CN103067847A Speaker dust cap material taking device |
| 04/24/2013 | CN103067846A Speaker dust cap rotary work platform |
| 04/24/2013 | CN103067845A Speaker dust cap glue taking device |