Acoustics – Diaphragm – Critically defined material or coating
Reexamination Certificate
2006-04-20
2010-12-14
San Martin, Edgardo (Department: 2832)
Acoustics
Diaphragm
Critically defined material or coating
C181S169000, C181S170000, C381S426000, C381S428000
Reexamination Certificate
active
07849958
ABSTRACT:
A Vibration system part for a speaker device includes a woven fabric or a non-woven fabric made of basalt fiber produced by twist yarn or roving yarn being a continuous long-fiber. The vibration system part for the speaker device may be a diaphragm, a center cap, an edge or a damper, for example. In a preferred example, the woven fabric or the non-woven fabric is impregnated with thermosetting resin or thermoplastic resin. Additionally, a lamination member, such as paper, foam material, resin or a film, is preferably laminated (coated) on the woven fabric or the non-woven fabric. Thus, the vibration system parts for the speaker device, having excellent acoustic property and reliability, can be obtained at a low price.
REFERENCES:
patent: 4140203 (1979-02-01), Niguchi et al.
patent: 4410768 (1983-10-01), Nakamura et al.
patent: 5744761 (1998-04-01), Ogura et al.
patent: 5830305 (1998-11-01), Andersen et al.
patent: 6039145 (2000-03-01), Ogura et al.
patent: 6305494 (2001-10-01), Pfaffelhuber et al.
patent: 6378649 (2002-04-01), Inoue et al.
patent: 6591938 (2003-07-01), Inoue et al.
patent: 6740202 (2004-05-01), Ishigaki et al.
patent: 6831876 (2004-12-01), Cartwright
patent: 2002/0160682 (2002-10-01), Zeng et al.
patent: 2004/0112672 (2004-06-01), Ono et al.
patent: 2004/0115439 (2004-06-01), Degroote
patent: 42 13 991 (1993-11-01), None
patent: 1 220 568 (2002-07-01), None
patent: 63232799 (1988-09-01), None
patent: 63287298 (1988-11-01), None
patent: 1-32855 (1989-07-01), None
patent: 01270494 (1989-10-01), None
patent: 8-90721 (1996-04-01), None
patent: 2000-104043 (2000-04-01), None
“Speaker cone Basalt fiber weaving cone”, www.asianproducts.com, no date provided.
“Basalt Fiber & Composite Materials Technology Development”; www.basaltfm.com/eng/fiber/info.html 2005.
“Basalt Fibres”, Textiles Magazine, vol. 27, No. 4, 1998, pp. 20-21, XP000824256.
Hachiya Satoshi
Kobayashi Hiroyuki
Sato Masatoshi
Takayama Koji
Martin Edgardo San
Pioneer Corporation
Tohoku Pioneer Corporation
Young & Thompson
LandOfFree
Vibration system part for speaker device and 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 Vibration system part for speaker device and manufacturing..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vibration system part for speaker device and manufacturing... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4163619