Title:
防水通音膜を用いた通音部材の製造方法
Document Type and Number:
Japanese Patent JP5739390
Kind Code:
B2
Abstract:
The sound-permeable member (18) includes a waterproof sound-permeable membrane (1) that allows sound to pass therethrough and blocks liquid from passing therethrough and a main body (8) having an opening (8p) for passing sound. The opening (8p) is closed by the waterproof sound-permeable membrane (1). The waterproof sound-permeable membrane (1) is fixed to the main body (8) in a slack state. A polytetrafluoroethylene porous membrane and a porous ultrahigh-molecular weight polyethylene membrane preferably can be used as the waterproof sound-permeable membrane (1).
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Inventors:
Ei Saba
Eiji Matsuda
Eriguchi Fuyuki
Eiji Matsuda
Eriguchi Fuyuki
Application Number:
JP2012205289A
Publication Date:
June 24, 2015
Filing Date:
September 19, 2012
Export Citation:
Assignee:
NITTO DENKO CORPORATION
International Classes:
H04M1/03; H04R1/00
Domestic Patent References:
| JP9008886A | ||||
| JP2003244783A | ||||
| JP2004263440A | ||||
| JP3096200U | ||||
| JP6031990U | ||||
| JP2004083811A | ||||
| JP8079865A | ||||
| JP2000078676A |
Attorney, Agent or Firm:
Koichi Kamata