Title:
FILM FOR SPEAKER DIAPHRAGM
Document Type and Number:
Japanese Patent JP2013187558
Kind Code:
A
Abstract:
To provide a novel diaphragm for speaker capable of building an electrostatic speaker system by maintaining a charged state stably, because application of high voltage is not required for charging, since the diaphragm is extremely lightweight and has self-charging properties, dust is less likely to adhere, and adhering dust can be removed easily by vibration.
The film for speaker diaphragm has an amorphous part at least partially in at least the surface layer of a film formed of a fluorine-based polymer, and the mass of the film per unit area is 15-350 mg/dm2.
Inventors:
NAOHARA YOHEI
NAKAYAMA TSURUO
NAKAYAMA TSURUO
Application Number:
JP2012048491A
Publication Date:
September 19, 2013
Filing Date:
March 05, 2012
Export Citation:
Assignee:
NBC MESHTEC INC
International Classes:
H04R7/02; H04R31/00
Domestic Patent References:
| JP2001086595A | 2001-03-30 | |||
| JP2006287279A | 2006-10-19 | |||
| JP2008021787A | 2008-01-31 | |||
| JP2009117888A | 2009-05-28 | |||
| JP2001177899A | 2001-06-29 | |||
| JP2000026614A | 2000-01-25 | |||
| JP2001086595A | 2001-03-30 | |||
| JP2006287279A | 2006-10-19 | |||
| JP2008021787A | 2008-01-31 |
Attorney, Agent or Firm:
Mizuno Katsufumi
Masayuki Kishida
Makoto Ide
Masayuki Kishida
Makoto Ide