| Patents for H04R 31 - Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor (5,050) |
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| 12/26/2013 | US20130341118 Packaging of acoustic volume increasing materials for loudspeaker devices |
| 12/25/2013 | CN203368750U MEMS microphone |
| 12/25/2013 | CN103474198A Method for magnetizing main and subsidiary magnets of external-magnetic dual-magnet loudspeaker |
| 12/19/2013 | WO2013079930A9 Electro -acoustic transducer for mounting on a substrate |
| 12/18/2013 | CN103458343A Damper for loudspeaker generator and damper manufacturing method |
| 12/18/2013 | CN103458326A Horn seal structure and processing method thereof |
| 12/18/2013 | CN101282589B Microphone unit and manufacturing method thereof, voice input device and information processing system |
| 12/17/2013 | US8611567 Direct writing of functionalized acoustic backing |
| 12/17/2013 | US8607438 Method for fabricating a read sensor for a read transducer |
| 12/12/2013 | US20130329910 Systems and Methods for Reducing Stray Magnetic Flux |
| 12/11/2013 | EP2671515A1 Ultrasound transducer array, method of manufacturing ultrasound transducer array, and ultrasound endoscope |
| 12/11/2013 | CN203340287U Automatic instant polarization machine for electret material |
| 12/11/2013 | CN103442324A Backboard and manufacturing method thereof |
| 12/11/2013 | CN102197661B Speaker, speaker manufacturing method and speaker manufacturing jig |
| 12/11/2013 | CN102088656B Press-forming mould of loudspeaker elastic wave |
| 12/11/2013 | CN102065365B Silicon micro-composite thin film chip manufacture method and optical fiber sound pressure sensor using the silicon micro-composite thin film chip |
| 12/05/2013 | WO2013178535A2 Free-standing non-planar polycrystalline synthetic diamond components |
| 12/05/2013 | DE102012209238A1 Ultraschallsensor sowie Vorrichtung und Verfahren zur Messung eines Abstands zwischen einem Fahrzeug und einem Hindernis Ultrasonic sensor, as well as apparatus and method for measuring a distance between a vehicle and an obstacle |
| 12/04/2013 | EP2670162A1 Earphone driver and method of manufacture |
| 12/04/2013 | CN203327236U Diaphragm polarization device and automatic diaphragm polarization assembly machine |
| 12/04/2013 | CN103429166A Ultrasonic vibrator array, method for manufacturing ultrasonic vibrator array, and ultrasonic endoscope |
| 12/04/2013 | CN103428622A Piezoelectric speaker having weight and method of producing the same |
| 12/04/2013 | CN103428617A Vibrating wing device for moving-iron type loudspeaker or receiver |
| 12/04/2013 | CN102014334B Sound film molding pressing die for loudspeaker |
| 12/03/2013 | US8595917 Method for improving a flexure's electrical characteristics |
| 11/28/2013 | WO2013174609A1 Asymmetrical multi-layered membrane for electroacoustic transducers |
| 11/28/2013 | US20130315035 Ultrasound transducer and method for manufacturing an ultrasound transducer |
| 11/28/2013 | DE102009055749B4 Membran für elektromechanische Wandler und Verfahren zur Herstellung der Membran Membrane for electro-mechanical transducer and methods for making the membrane |
| 11/27/2013 | CN203313404U A vibration film shaping apparatus |
| 11/27/2013 | CN203313403U A voice coil external surface coiling apparatus |
| 11/27/2013 | CN203313402U A ketone body plying-up apparatus |
| 11/26/2013 | US8590139 Patterning of and contacting magnetic layers |
| 11/26/2013 | US8590138 Method of manufacturing thermally-assisted magnetic recording head |
| 11/26/2013 | US8590136 Method of fabricating a dual single-crystal backplate microphone |
| 11/21/2013 | US20130309400 Method for making diaphragm |
| 11/21/2013 | DE102012208477A1 Asymmetrische Mehrschichtmembran für elektroakustische Wandler Asymmetric multi-layer diaphragm for electroacoustic transducers |
| 11/20/2013 | CN103402168A Method for spraying center glue of loudspeaker |
| 11/20/2013 | CN103402164A MEMS (micro-electromechanical system) microphone structure and manufacturing method thereof |
| 11/20/2013 | CN103402163A Shock-resistant silicon-based micro-electro mechanical system (MEMS) microphone and manufacturing method thereof |
| 11/20/2013 | CN103402162A Capacitive silicon microphone provided with vibrating membrane with concave-convex structure, and preparation method thereof |
| 11/20/2013 | CN103402161A Micro-silicon microphone and manufacturing method thereof |
| 11/20/2013 | CN102387454B Silicon microphone and packaging structure of product applying same |
| 11/14/2013 | US20130301866 Acoustic Device |
| 11/14/2013 | US20130298677 Device for prediction underground behavior by using acoustic emission sensor and producing method thereof |
| 11/13/2013 | CN103392350A Method for manufacturing semiconductor device and method for manufacturing microphone |
| 11/13/2013 | CN103391502A Method for manufacturing waterproof sheets of microphones |
| 11/13/2013 | CN103391501A Mems麦克风结构及其制作方法 Mems microphone structure and production methods |
| 11/13/2013 | CN103391499A Loudspeaker module and manufacturing method thereof |
| 11/13/2013 | CN103391498A Composite sound film structure and composite technology thereof |
| 11/13/2013 | CN102344640B Loudspeaker diaphragm made from ABS (acrylonitrile-butadiene-styrene) copolymer nanocomposite |
| 11/13/2013 | CN102088655B Forming and pressing die for loudspeaker drum paper |
| 11/12/2013 | US8578594 Process for fabricating a magnetic pole and shields |
| 11/07/2013 | WO2013079930A3 Electro -acoustic transducer for mounting on a substrate |
| 11/07/2013 | US20130294203 Focused Acoustic Transducer |
| 11/07/2013 | US20130291370 Method for producing an earpiece with a vent |
| 11/07/2013 | DE102013203169A1 Hearing instrument e.g. behind-the-ear (BTE) hearing aid has connecting elements that are partially made of vibration-damping material such as rubber to damp transfer of vibrations between housing and attachment |
| 11/06/2013 | CN203279181U Security alarm apparatus facilitating automatic production of 58K sound-magnet |
| 11/06/2013 | CN203279180U Glue-injecting apparatus for horns |
| 11/06/2013 | CN102333254B MEMS silicon microphone longitudinally integrated with CMOS circuit, and manufacturing method for the same |
| 11/06/2013 | CN102291648B Peripheral frame of electromagnetic vibrating device and production method thereof |
| 11/06/2013 | CN102281818B Ultrasonic probe manufacturing method and ultrasonic probe |
| 11/06/2013 | CN102118679B Manufacturing method and device of loudspeaker |
| 11/06/2013 | CN102075843B Bionic behind-the-ear hearing aids and manufacturing method thereof |
| 11/06/2013 | CN101883309B Capacitive electro-mechanical transducer and fabrication method of the same |
| 11/06/2013 | CN101784002B Method for manufacturing thermoacoustic device |
| 11/06/2013 | CN101594567B Diaphragm for condenser microphone, method for manufacturing the same, and condenser microphone |
| 10/31/2013 | WO2013163115A1 Non-pressure sensitive implantable microphone |
| 10/31/2013 | WO2013160137A1 Human like ear simulator |
| 10/31/2013 | US20130286786 Ultrasound transducer array, method of manufacturing ultrasound transducer array and ultrasound endoscope |
| 10/30/2013 | CN103379423A Method for manufacturing electronic packaging bodies |
| 10/30/2013 | CN103379392A 电容式超声传感器芯片及其制作方法 Capacitive ultrasonic sensor chip and its manufacturing method |
| 10/29/2013 | US8568598 Tip type probe manufacturing method, tip type probe and tip type probe manufacturing apparatus |
| 10/29/2013 | US8567045 Process to manufacture a magnetic write head |
| 10/29/2013 | US8567044 Method of manufacturing a magnetic disk |
| 10/29/2013 | US8567041 Method of fabricating a heated quartz crystal resonator |
| 10/24/2013 | WO2013157505A1 Electret structure and method for manufacturing same, and electrostatic induction-type conversion element |
| 10/23/2013 | CN103369452A Preparation method of capacitive-type silicon microphone |
| 10/23/2013 | CN103369451A Production technology of ribbon-type high-pitch diaphragm |
| 10/23/2013 | CN103369450A Manufacturing method of waterproof thin sheet used in microphone |
| 10/23/2013 | CN103369449A Preparation method for horn vibrating reeds |
| 10/23/2013 | CN103369421A Earphone and method of manufacturing same |
| 10/23/2013 | CN102325296B Rapid installation device of subsidiary magnet of speaker |
| 10/22/2013 | US8561285 Methods and devices for picking and placing workpieces into small form factor hard disk drives |
| 10/17/2013 | US20130272537 Speaker |
| 10/16/2013 | CN203243525U Molding device for voice receiver diaphragm |
| 10/16/2013 | CN101729972B Methods of making speakers |
| 10/15/2013 | US8555486 Method for providing a pole in a magnetic recording transducer using a cathodic etch |
| 10/15/2013 | US8555483 Method of manufacturing a vibrating element |
| 10/10/2013 | WO2013150667A1 Piezoelectric element, piezoelectric vibration module, and manufacturing method of these |
| 10/10/2013 | WO2013149454A1 Assembling method for micro-loudspeaker assembly |
| 10/10/2013 | DE102012207316B3 Verfahren zum Herstellen eines Ohrstücks mit Vent A method of manufacturing an earpiece with Vent |
| 10/09/2013 | CN103347244A Automatic momentary-polarizing machine of electret materials |
| 10/09/2013 | CN103347243A Integrated manufacturing method for vibrating diaphragm and gasket for microphone |
| 10/09/2013 | CN103347242A Method for manufacturing metal earphone cavities |
| 10/09/2013 | CN103347241A Capacitor type silicon microphone chip and preparation method thereof |
| 10/09/2013 | CN103347239A MEMS microphone and assembling method thereof |
| 10/08/2013 | US8549728 Manufacturing method for vibration body and manufacturing method for vibration actuator |
| 10/03/2013 | WO2013144122A1 Microphone having a microphone capsule, dynamic sound transducer for headphones, earphones or headsets and method for producing a microphone capsule or a sound transducer |
| 10/03/2013 | US20130258814 Ultrasound System and Method of Manufacture |
| 10/03/2013 | US20130258802 Ultrasonic transducer element chip, probe, electronic instrument, and ultrasonic diagnostic device |