Title:
PRODUCTION OF ELECTROSTATIC TYPE TRANSDUCERS
Document Type and Number:
Japanese Patent JPS5417830
Kind Code:
A
Abstract:
PURPOSE: To perform spreading of diaphragms and improve volume productivity by including a process of pressurized thermo-bonding a resin film for electret diaphragms.
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Inventors:
KAWASAKI AKIO
SUYAMA HIDEO
UGAJI MASAKATA
SUYAMA HIDEO
UGAJI MASAKATA
Application Number:
JP8271677A
Publication Date:
February 09, 1979
Filing Date:
July 11, 1977
Export Citation:
Assignee:
SONY CORP
International Classes:
H04R19/00; H04R19/01; (IPC1-7): H04R19/00
Previous Patent: JPS5417829
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