Method for forming multilayer sheets and extrusion die therefor

United States of America Patent

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Mar 20, 2001
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N/A
app pub date
Aug 21, 1998
filing date
Aug 22, 1997

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Expired

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Abstract

Broad parts are formed on at least one passage including a passage for forming the thinnest layer among passages for respective resin layers of a multilayer sheet at an upstream side of a confluence. In the broad parts, clearances become larger to both ends of the passage along the width thereof.

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Patent Owner(s)

Patent Owner	Address
FUJIFILM CORPORATION	26-30 NISHIAZABU 2-CHOME MINATO-KU TOKYO 1068620 JAPAN

International Classification(s)

B29C:SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTAN....

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Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Katsumoto, Ryuichi	Shizuoka, JP	38	174
Kegasawa, Tadahiro	Shizuoka, JP	25	104
Ogawa, Shotaro	Shizuoka, JP	40	299
Ozaki, Kazuo	Shizuoka, JP	18	135
Usui, Hideaki	Kanagawa, JP	16	80

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Method for forming multilayer sheets and extrusion die therefor

Number of patents in Portfolio can not be more than 2000

United States of America Patent

09137833

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PATENT NO	6203742
SERIAL NO	09137833
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09137833

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