Title:
電気音響変換器用振動板の製造方法
Document Type and Number:
Japanese Patent JP4482372
Kind Code:
B2
Abstract:
A method for manufacturing an electroacoustic transducer diaphragm of a multilayered structure which includes a first diaphragm layer made from a synthetic resin material and molded into a predetermined shape through injection molding, and a second diaphragm layer laminated in close contact with the first diaphragm layer and made from a material differing from that of the first diaphragm layer, the method includes inserting the second diaphragm layer into a mold for injection molding, and forming the first diaphragm layer integrally with the second diaphragm layer by injection foam-molding within the injection mold.
Inventors:
Koji Takayama
Masatoshi Sato
Shinichi Hayasaka
Hiroyuki Kobayashi
Masatoshi Sato
Shinichi Hayasaka
Hiroyuki Kobayashi
Application Number:
JP2004144146A
Publication Date:
June 16, 2010
Filing Date:
May 13, 2004
Export Citation:
Assignee:
Pioneer Corporation
Tohoku Pioneer Co., Ltd.
Tohoku Pioneer Co., Ltd.
International Classes:
B29C45/14; H04R7/02; B29B13/00; B29C31/00; B29C45/56; H04R7/12; H04R25/00; H04R31/00; B29C37/00
Domestic Patent References:
| JP2001189998A | ||||
| JP2001287237A | ||||
| JP1200900A | ||||
| JP2004122367A | ||||
| JP9157426A | ||||
| JP2000004496A | ||||
| JP2003041039A |
Attorney, Agent or Firm:
Teruo Naito