Title:
スピーカ用振動板の製造方法およびこの製造方法により製造されたスピーカ用振動板およびこのスピーカ用振動板を用いたスピーカ
Document Type and Number:
Japanese Patent JP4631487
Kind Code:
B2
Abstract:
In a process for producing a loudspeaker diaphragm, pulp is deposited on a paper-making mold in the presence of vortex stream of water having pulp dispersed therein in a paper-making bath. Pulp is deposited on the paper-making mold while at least the water having pulp dispersed therein is rotated by the vortex stream in the paper-making bath. Consequently, variation of pulp fiber orientation is suppressed, and a loudspeaker diaphragm with high reproducibility and stable quality is produced with a high productivity.
Inventors:
Takashi Suzuki
Shinya Mizone
Shinya Mizone
Application Number:
JP2005080943A
Publication Date:
February 16, 2011
Filing Date:
March 22, 2005
Export Citation:
Assignee:
Panasonic Corporation
International Classes:
H04R31/00; H04R7/02
Domestic Patent References:
| JP4189099A | ||||
| JP10172993A | ||||
| JP62041100U |
Attorney, Agent or Firm:
Hiroki Naito
Daisuke Nagano
Kentaro Fujii
Daisuke Nagano
Kentaro Fujii