Diaphragm for speaker and manufacturing method thereof

Details Diaphragm for speaker and manufacturing method thereof Diaphragm for speaker and manufacturing method thereof

2006-09-26

2009-10-13

Gulakowski, Randy (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

C181S175000

Reexamination Certificate

active

07601763

ABSTRACT:
A diaphragm for a speaker is made by forming acrylic foam. As the material of the acrylic foam, using maleic anhydride and methacrylic amide are contained. Thereby, the coefficient of saturated water absorption can be reduced. When the diaphragm thus manufactured is used for a speaker device, the decrease of strength due to the water absorption and the deterioration of the sound quality can be prevented even in a humid environment.

REFERENCES:
patent: 6794461 (2004-09-01), Fujita et al.
patent: 2004/0247152 (2004-12-01), Greb et al.
patent: 2047096 (1970-09-01), None
patent: 2000-248104 (2000-12-01), None
patent: 2004-537243 (2004-12-01), None
patent: WO 03/13187 (2003-02-01), None

Affiliated with

Also associated with

Rating

Diaphragm for speaker and manufacturing method thereof does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Diaphragm for speaker and manufacturing method thereof, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Diaphragm for speaker and manufacturing method thereof will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4125368