Electro-acoustic transducer and method of manufacturing...

Acoustics – Diaphragm – Mounting or suspension means

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C181S166000, C181S172000, C381S190000, C381S191000, C381S396000, C381S400000, C381S403000, C381S404000, C381S405000, C381S420000

Reexamination Certificate

active

07316289

ABSTRACT:
An electro-acoustic transducer includes a tone generator, a vibrator, and a case. The tone generator includes a diaphragm, and a voice coil joined to the diaphragm. The vibrator includes a magnetic circuit having a magnetic gap at which the voice coil is positioned, and a suspension made of metal and having a first end joined to the magnetic circuit to suspend the magnetic circuit for allowing the magnetic circuit to vibrate. The case is joined to a periphery of the diaphragm, and includes a metal plate joined to a second end of the suspension. The metal plate is joined to the suspensions reliably, hence allowing the electro-acoustic transducer to be manufactured stably.

REFERENCES:
patent: 5528697 (1996-06-01), Saito
patent: 6151486 (2000-11-01), Holshouser et al.
patent: 6377145 (2002-04-01), Kumagai
patent: 6570993 (2003-05-01), Fukuyama
patent: 6672423 (2004-01-01), Kato
patent: 6724908 (2004-04-01), Fukuyama
patent: 6728386 (2004-04-01), Andersen
patent: 7010140 (2006-03-01), Furuya
patent: 2002/0017423 (2002-02-01), Kato
patent: 2002/0034313 (2002-03-01), Lin et al.
patent: 2000-153231 (1998-11-01), None
patent: 11-007285 (1999-01-01), None
patent: 2000-153231 (2000-06-01), None
patent: 2001-016686 (2001-01-01), None
patent: 2001-104881 (2001-04-01), None
patent: 2001-300422 (2001-10-01), None
patent: 453090 (2001-09-01), None
patent: 488179 (2002-05-01), None
International Search Report for application No. PCT/JP03/12951 dated Jan. 20, 2004.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Electro-acoustic transducer and method of manufacturing... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electro-acoustic transducer and method of manufacturing..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electro-acoustic transducer and method of manufacturing... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2778869

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.