Loudspeaker diaphragm and process for producing same

United States of America Patent

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Mar 22, 1983
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N/A
app pub date
Dec 2, 1981
filing date
Dec 3, 1980

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Expired

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Abstract

A dome-shaped diaphragm for loudspeakers comprising a substrate fabric of synthetic fiber, a poly-urethane elastomer film for giving airtightness to the substrate fabric, and a viscoelastic resin adhesive adhering the fabric and the film together.

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Patent Owner(s)

Patent Owner	Address
ONKYO KABUSHIKI KAISHA	1-GO 2-BAN NISSHIN-CHO NEYAGAWA-SHI OSAKA-FU

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Inventor Name	Address	# of filed Patents	Total Citations
Akahama, Motoharu	Hirakata, JP	1	12
Ikei, Akira	Yawata, JP	1	12
Onogi, Takashi	Takarazuka, JP	2	24
Wada, Tokisuke	Uji, JP	1	12

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Loudspeaker diaphragm and process for producing same

Number of patents in Portfolio can not be more than 2000

United States of America Patent

06326446

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PATENT NO	4377617
SERIAL NO	06326446
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06326446

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