Patents
Sitemap › H04 - Electric communication technique › H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers; Deaf-aid sets; Public address systems › H04R 31 - Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
Patents for H04R 31 - Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor (5,050)
06/2003
06/17/2003US6579405 Method and apparatus for assembling an ultrasonic transducer
06/17/2003US6578257 Semi-automated media rework tool
06/12/2003US20030106740 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
06/05/2003US20030103643 Amplifier with improved structure
06/05/2003US20030102777 Ultrasonic transducer and method of manufacturing the same
06/04/2003EP1316239A2 Method of producing hearing aids and a hearing aid
06/03/2003US6571445 Method for making acoustic transducer
05/2003
05/30/2003WO2003045111A1 Piezoelectric body manufacturing method, piezoelectric body, ultrasonic probe, ultrasonic diagnosing device, and nondestructive inspection device
05/30/2003WO2003043747A2 Manufacture having double sided features in a metal-containing web formed by etching
05/30/2003CA2467716A1 Manufacture having double sided features in a metal-containing web formed by etching
05/30/2003CA2467686A1 Piezoelectric body manufacturing method, piezoelectric body, ultrasonic probe, ultrasonic diagnosing device, and nondestructive inspection device
05/29/2003US20030099069 Magnetic head, method of manufacturing same, and head suspension assembly
05/28/2003EP1315400A2 Speaker and method for manufacturing the speaker
05/28/2003CN1420709A Microphone, diaphragm and method for making diaphragm
05/28/2003CN1419895A Piezoelectric sensor, method for mfg. same, and pulse wave detector
05/28/2003CN1110225C Terminal connection method of coil and terminal connection structure of coil
05/27/2003US6570993 Electric-mechanical-acoustic converter and method for producing the same
05/22/2003WO2003042996A1 Universal fixture for hsa assembly and its testing process
05/22/2003US20030093891 Method for manufacturing speaker
05/21/2003EP1312424A2 Piezoelectric transducer, manufacturing method of piezoelectric transducer and pulse wave detector
05/21/2003EP1312241A2 Electrostatic electroacoustical transducer
05/20/2003US6567529 Low frequency loudspeaker driver having a polygonal diaphragm and method for mounting drivers in a tightly packed two-dimensional array
05/20/2003US6566265 Method of working piezoelectric substance and method of manufacturing composite piezoelectric substance
05/16/2003CA2411598A1 Piezoelectric transducer, manufacturing method of piezoelectric transducer and pulse wave detector
05/14/2003EP1310136A2 Miniature broadband transducer
05/14/2003CN1418135A Unidirectional acoustic probe and method for making same
05/08/2003US20030084562 Manufacturing method for electroacoustic transducer
05/08/2003US20030084561 Method of manufacturing bolt-tightened langevin type transducer
05/07/2003EP0753238B1 Method of manufacturing a loudspeaker spider
05/07/2003CN1416297A Method for producing loudspeaker and special set thereof
05/07/2003CN1416296A Mechanical device of full automatic assembly machine for magnetic loop of receiver
05/07/2003CN1416295A Loudspeaker and method of mfg. such loudspeaker
05/02/2003EP1307069A2 Casing for an electronic device and process of assembly of such a casing
05/02/2003EP1307068A1 Casing for an electronic device and process of assembly of such a casing
05/01/2003WO2003035281A2 Ultrasonic printed circuit board transducer
05/01/2003US20030081807 Speaker and method for manufacturing the speaker
04/2003
04/30/2003CN1414781A Casing of electronic device and method for assembing the casing
04/29/2003US6554962 Loudspeaker diaphragm
04/24/2003US20030076971 Casing for an electronic device and process for assembly of such a casing
04/17/2003WO2003032684A1 Method of producing speaker diaphragm
04/17/2003US20030074174 Manufacturing methods and systems for rapid production of hearing-aid shells
04/16/2003CN1106134C Mfg. method of electromagnetic sound converter
04/15/2003US6546803 Ultrasonic array transducer
04/10/2003US20030067249 Ultrasound transducer array
04/08/2003US6543574 Method of making a speaker edge containing isocyanate and polyol
04/05/2003CA2406684A1 Ultrasound transducer array
03/2003
03/27/2003WO2003025924A1 Optical recording medium
03/25/2003US6538363 Method of manufacturing a piezoelectric element
03/20/2003WO2003024151A1 An electro-acoustic transducer with two diaphragms
03/20/2003US20030052355 Integrated sound transmitter and receiver, and corresponding method for making same
03/19/2003CN1404340A Damper for loudspeaker
03/18/2003US6535460 Miniature broadband acoustic transducer
03/13/2003WO2003021303A2 Optical disk drive actuator assembly
03/13/2003DE10135414C1 Herstellung nicht-flacher Membranen für elektroakustische Wandler Production of non-flat membranes for electroacoustic transducers
03/12/2003EP1292171A2 Chip microphone and method of making same
03/12/2003CN1402503A Electroacoustic converter frame and mfg. method thereof
03/06/2003US20030043729 Mechanism for limiting actuator assembley movement in a data storage/retrieval system
03/06/2003US20030043727 Eccentric CAM for limiting actuator tracking
03/06/2003US20030043726 Focus stop for limiting actuator assembly focus travel
03/06/2003US20030043717 Method for aligning actuator assembly to a base in a miniature optical disk drive
03/06/2003US20030041439 Device and method for mounting a spindle motor to a base in a miniature optical disk drive
03/05/2003EP1287720A1 Electromechanical transducer
03/05/2003CN1400846A Capacitor microphone and its making process
02/2003
02/27/2003WO2003001885A3 Multimedia and entertainment system for an automobile
02/27/2003US20030037989 Custom-molded ear-plug, and process for producing a custom-molded ear-plug device
02/20/2003US20030035558 Acoustic sensor, its manufacturing method, and semiconductor electret condenser microphone using the same acoustic sensor
02/13/2003WO2003013187A1 Production of non-planar membranes for electroacoustic converters
02/13/2003CA2455619A1 Production of shaped diaphragms for electroacoustic transducers
02/06/2003US20030026443 Condenser microphone and production method thereof
02/06/2003US20030024763 Electroacoustic transducer frame and method of making the same
02/06/2003US20030024317 Ultrasonic transducer wafer having variable acoustic impedance
02/05/2003EP1282339A2 Condenser microphone and production method thereof
02/05/2003EP1281293A2 Armature for a receiver
02/05/2003CN1395812A Method for manufacturing speaker
02/04/2003WO2001095667A1 Electromechanical transducer
02/04/2003US6513623 Speaker
01/2003
01/30/2003US20030020370 Cell driving type actuator and method for manufacturing the same
01/29/2003EP1280378A2 Electroacoustic transducer frame and method of making the same
01/29/2003CN1394456A Speaker edge, method of foam-molding same, apparatus for foam-molding same, speaker edge foam-molding system, and speaker employing speaker edge
01/28/2003US6512833 Electret condenser microphone and method of producing same
01/28/2003US6512323 Piezoelectric actuator device
01/23/2003US20030016839 Raised microstructure of silicon based device
01/16/2003US20030011277 Unidirectional acoustic probe and method for making same
01/16/2003US20030009873 Multidimensional array and fabrication thereof
01/15/2003EP1276348A1 Method for forming carbon fiber layers for an acoustic diaphragm
01/15/2003EP1274518A1 Unidirectional acoustic probe and method for making same
01/09/2003WO2003001885A2 Multimedia and entertainment system for an automobile
01/02/2003US20030002695 Loudspeaker diaphragm
01/02/2003EP1271997A2 Loudspeaker diaphragm
01/01/2003CN1388732A Making process of magnetically conducting bowl for loudspeaker
01/01/2003CN1388727A Method for prodcing vibrating plate of loudspeaker and vibrating plate for loudspeaker
12/2002
12/26/2002US20020195902 Cell driving type actuator and method for manufacturing the same
12/25/2002CN1387351A Loudspeaker
12/19/2002US20020190814 Thin film bulk acoustic resonator and method of producing the same
12/18/2002CN1386037A Capacitance microphone and method for making same
12/18/2002CN1385997A Electret capacitance microphone and making method thereof
12/14/2002WO2000074915A2 Method of producing hearing aids and a hearing aid
12/05/2002WO2001022776A9 Method of forming parylene-diaphragm piezoelectric acoustic transducers
11/2002
11/28/2002US20020175021 Speaker
11/27/2002EP1261234A2 Condenser microphone and method for manufacturing condenser microphones
1 ... 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51