| US 7,558,399 B2 | ||
| Vibrating plate of dynamic microphone and method of manufacturing the same | ||
| Hiroshi Akino, Tokyo (Japan) | ||
| Assigned to Kabushiki Kaisha Audio-Technica, Tokyo (Japan) | ||
| Filed on Nov. 19, 2004, as Appl. No. 10/993,060. | ||
| Claims priority of application No. 2003-420745 (JP), filed on Dec. 18, 2003. | ||
| Prior Publication US 2005/0135652 A1, Jun. 23, 2005 | ||
| Int. Cl. H04R 31/00 (2006.01); H04R 9/08 (2006.01); H04R 9/00 (2006.01) | ||
| U.S. Cl. 381—426 [381/189; 381/398; 381/423; 381/430; 29/594; 181/164; 181/167; 181/171; 181/172] | 2 Claims |
| 1. A vibrating plate of a dynamic microphone having a center dome disposing an electricity generating voice coil, the vibrating
plate having a subdome connecting and communicating with the outer circumference of the center dome, the vibrating plate comprising:
a damping thin film on the concave surface of the subdome comprises an ultraviolet curing-resin coating uniformly distributed
about substantially the whole area of the concave surface of the subdome; and
wherein the damping thin film is about 10 μm to about 0.5 mm thick and is integrated with the subdome.
|