Voice coil bobbin and speaker system

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Electromagnetic

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C381S407000

Reexamination Certificate

active

08059857

ABSTRACT:
A voice coil bobbin, which transmits a motive force from the voice coil wound around the bobbin to a diaphragm, includes a main part, a reinforcement part formed on the surface side of the main part, and a middle part formed between the main part and the reinforcement part and made of a material which has a lower density than the other two parts, preferably a non-woven cloth. Thus, there can be provided with the simple-design, high-rigidity voice coil bobbin with high internal loss and a speaker system capable of high-quality sound reproduction.

REFERENCES:
patent: 2005/0185818 (2005-08-01), Ishigaki et al.
patent: 54-102118 (1979-08-01), None
patent: 55-77297 (1980-06-01), None
patent: 57-014280 (1982-01-01), None
patent: 60-87600 (1985-05-01), None
patent: 61-70491 (1986-05-01), None
patent: 64-60100 (1989-03-01), None
patent: 9-187098 (1997-07-01), None
patent: 11-150793 (1999-06-01), None
patent: 2005-277561 (2005-10-01), None

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

Voice coil bobbin and speaker system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Voice coil bobbin and speaker system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Voice coil bobbin and speaker system will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4255010

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