Patents
Sitemap › H04 - Electric communication technique › H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers; Deaf-aid sets; Public address systems › H04R 15 - Magnetostrictive transducers
Patents for H04R 15 - Magnetostrictive transducers (423)
08/2002
08/20/2002US6438242 Acoustic transducer panel
07/2002
07/18/2002WO2001050811A9 Active housing broadband tonpilz transducer
04/2002
04/25/2002WO2001054450A3 Transducer in particularly for use in acoustic devices
03/2002
03/14/2002DE10040994A1 Wide frequency range sound generation system for internal noise reduction measure in motor vehicle, has vibratable diaphragm made of several passive tightened layers and active function elements
02/2002
02/27/2002EP0442969B1 Wholly microfabricated biosensors and process for the manufacture and use thereof
01/2002
01/17/2002WO2002004908A1 Pressure transducer
01/02/2002CN2469649Y Magnetostriction hi-fi plate speaker
01/02/2002CN2469648Y Speaker made of ultramagnetostriction materials
11/2001
11/28/2001EP1158671A2 Acoustic mirror materials for acoustic devices
11/21/2001CN2461234Y Super-magnetostriction materials Hi-Fi earphone
09/2001
09/27/2001WO2001072084A2 Dual mode audio device
09/25/2001US6294912 Method and apparatus for nondestructive inspection of plate type ferromagnetic structures using magnetostrictive techniques
09/13/2001US20010021087 Canted longitudinal patterned exchange biased dual-stripe magnetoresistive (DSMR) sensor element and method for fabrication thereof
08/2001
08/16/2001WO2001060115A1 Acoustic transducer
07/2001
07/26/2001WO2001054450A2 Transducer in particularly for use in acoustic devices
07/26/2001CA2395022A1 New transducers limited
07/12/2001WO2001050811A1 Active housing broadband tonpilz transducer
05/2001
05/15/2001US6230390 Canted longitudinal patterned exchange biased dual-stripe magnetoresistive (DSMR) sensor element and method for fabrication thereof
05/09/2001CN2429984Y magnetostrictive vibration generator
04/2001
04/24/2001CA2087762C Moment bender transducer
04/10/2001US6215301 Magnetoresistive detector comprising a layer structure and a current directing means
01/2001
01/31/2001CN1281757A Ultra-magnetostrictive soic wave transmitting energy converter
01/23/2001US6178249 Attachment of a micromechanical microphone
01/23/2001CA2221178C Wholly microfabricated biosensors and process for the manufacture and use thereof
09/2000
09/21/2000WO2000055617A1 Method and apparatus for long range inspection of plate-like ferromagnetic structures
07/2000
07/11/2000US6087828 Displacement detection sensor using magnetostriction
06/2000
06/13/2000US6073831 Ultrasonic generator for minimizing heat input of magnetostrictive element and its manufacturing method
04/2000
04/12/2000EP0991913A2 Element comprising a layer structure and a current-directing means
02/2000
02/03/2000WO1999056074A3 Element comprising a layer structure and a current-directing means
01/2000
01/19/2000EP0973269A2 Audio signal noise reduction system
11/1999
11/09/1999US5982054 Magnetostrictive device
11/04/1999WO1999056074A2 Element comprising a layer structure and a current-directing means
08/1999
08/31/1999CA2002848C Wholly microfabricated biosensors and process for the manufacture and use thereof
06/1999
06/30/1999EP0776474A4 Electromagnetic acoustic transducer
06/22/1999US5914841 Circuit for driving magnetostrictive device
06/02/1999EP0919292A2 Ultrasonic generator for minimizing heat input of magnetostrictive element and its manufacturing method
06/02/1999EP0919291A2 Circuit for driving magnetostrictive device
01/1999
01/13/1999EP0815601B1 Magnetostrictive actuators
12/1998
12/15/1998US5850109 Magnetostrictive actuator
11/1998
11/17/1998US5837454 Process for the manufacture of wholly microfabricated biosensors
11/17/1998US5837446 Process for the manufacture of wholly microfabricated biosensors
03/1998
03/12/1998WO1998010619A1 Magneto-mechanical converter
01/1998
01/07/1998EP0815601A1 Magnetostrictive actuators
01/06/1998US5706254 Surface element and a device for generating sound
06/1997
06/04/1997EP0776474A1 Electromagnetic acoustic transducer
04/1997
04/16/1997EP0768013A1 A surface element and a device for generating sound
09/1996
09/26/1996WO1996029748A1 Magnetostrictive actuators
09/10/1996US5554339 Process for the manufacture of wholly microfabricated biosensors
05/1996
05/23/1996DE19510249C1 Magnetostriktiver Aktor Magnetostrictive Actuator
05/02/1996DE19510250C1 Magnetostrictive thin film actuator as drive for miniaturised valve, bending element, or pump
04/1996
04/02/1996US5503020 Electromagnetic acoustic transducer
01/1996
01/18/1996WO1996001424A1 Electromagnetic acoustic transducer
01/18/1996CA2193383A1 Electromagnetic acoustic transducer
12/1995
12/12/1995US5474833 Magnetoresistive transducer and method of manufacture
11/1995
11/30/1995WO1995032601A1 A surface element and a device for generating sound
11/14/1995US5466575 Process for the manufacture of wholly microfabricated biosensors
07/1995
07/19/1995EP0550684B1 Acoustic transmitter
03/1995
03/15/1995CN1027949C Acoustic transmitter
03/14/1995CA2091892C Acoustic transmitter
12/1994
12/28/1994CN2186468Y Rare-earth bend-spread transducer
10/1994
10/18/1994US5357232 Magnetostrictive element
10/11/1994US5355351 Underwater low-frequency sound producer using a rare earth alloy
10/04/1994US5353263 Soft sonar suspension system
09/1994
09/21/1994EP0616484A1 Magnetoresistive transducer und manufacturing method
08/1994
08/16/1994US5338287 Electromagnetic induction hearing aid device
07/1994
07/12/1994US5329499 Acoustic transmitter
05/1994
05/03/1994USH1308 Narrow band acoustic source
01/1994
01/26/1994EP0580156A2 Underwater low-frequency sound producer using a rare earth alloy
08/1993
08/11/1993EP0555084A2 Improved moment bender transducer
07/1993
07/14/1993EP0550684A1 Acoustic transmitter.
05/1993
05/12/1993EP0442969A4 Wholly microfabricated biosensors and process for the manufacture and use thereof
04/1993
04/20/1993US5204844 Moment bender transducer
04/06/1993US5200051 Wholly microfabricated biosensors and process for the manufacture and use thereof
12/1992
12/08/1992CA1311293C Elastic impulsion generator having the desired predetermined wave shape and its application to medical treatment and diagnosis
04/1992
04/08/1992CN1060192A Acoustic transmitter
04/07/1992US5103483 Spherical membrane omnidirectional loudspeaker using a magnetostrictive bimetallic strip
03/1992
03/29/1992WO1992006567A1 Acoustic transmitter
12/1991
12/20/1991CA2019394A1 Method and device in a motor
08/1991
08/28/1991EP0442969A1 Wholly microfabricated biosensors and process for the manufacture and use thereof
05/1991
05/07/1991US5014321 Wide passband omnidirectional loudspeaker
04/1991
04/18/1991WO1991006192A1 Soft sonar suspension system
04/18/1991CA2067242A1 Soft sonar suspension system
02/1991
02/05/1991US4991151 Elastic pulse generator having a desired predetermined wave form
12/1990
12/19/1990EP0403378A1 Omnidirectional loudspeaker with spherical diaphragm using a two-layer magnetostrictive ribbon
11/1990
11/27/1990CA1277023C Permanent magnet biased magnetostrictive transducer
09/1990
09/04/1990CA1273672A1 Self-biased modular magnetostrictive driver and transducer
05/1990
05/31/1990WO1990005910A1 Wholly microfabricated biosensors and process for the manufacture and use thereof
05/08/1990US4924503 Electroacoustic transducer
04/1990
04/25/1990EP0365393A1 Wide-band omnidirectional loudspeaker
03/1990
03/06/1990US4907209 Low frequency sound transducer
11/1989
11/02/1989WO1989010677A1 Flextensional transducer
10/1989
10/18/1989EP0337062A2 Acousto-electrical transducer
09/1989
09/12/1989US4866682 Transducer device
09/05/1989US4864548 Flextensional transducer
08/1989
08/29/1989US4862430 Wide pass band elastic wave omnidirectional transducer
07/1989
07/04/1989US4845450 Self-biased modular magnetostrictive driver and transducer
02/1989
02/15/1989EP0303547A1 Omnidirectional wide-band elastic wave transducer
11/1988
11/02/1988EP0289382A1 Generator for elastic pulses with a predetermined desired shape, and its use in medical treatment or diagnosis
11/01/1988US4782471 Omnidirectional transducer of elastic waves with a wide pass band and production process
09/1988
09/20/1988CA1242268A1 Low frequency sound transducer
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