Speaker diaphragm and speaker structure

Details Speaker diaphragm and speaker structure Speaker diaphragm and speaker structure

2008-03-18

2008-03-18

San Martin, Edgardo (Department: 2837)

Acoustics

Diaphragm

Critically defined material or coating

C181S167000, C381S426000, C381S428000

Reexamination Certificate

active

11355438

ABSTRACT:
A speaker diaphragm includes a base material impregnated with a thermosetting resin composition. The base material includes a first surface material, a core material, and a second surface material in the stated order; the first surface material and the second surface material are each formed of a woven fabric or a non-woven fabric; and the core material is formed of a woven fabric or a non-woven fabric each including hollow fine particles.

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