WATERPROOF SOUND-PERMEABLE MEMBRANE AND ELECTRONIC DEVICE

Provides is a waterproof sound-permeable membrane (10) adapted to permit passage of sound and prevent entry of water. The waterproof sound-permeable membrane (10) includes a sound-permeation region (11) having a polytetrafluoroethylene (PTFE) membrane (20). The polytetrafluoroethylene membrane (20)...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	TACHIBANA Toshimitsu, MORI Masaaki
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS PERFORMING OPERATIONS PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE PUBLIC ADDRESS SYSTEMS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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