Light guide pipe having elongate roughened protrusions and/or roughened concaves, planar light source unit having a broad viewing angle characteristic, and liquid crystal display device

United States of America Patent

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Jul 30, 2002
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N/A
app pub date
Sep 20, 2000
filing date
Sep 20, 1999

priority date (Note)
Expired

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Abstract

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Light guide pipe. Planar light source unit.

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Patent Owner(s)

Patent Owner	Address
MITSUBISHI CHEMICAL CORPORATION	TOKYO 100-8251
YUKADENSHI CO LTD	TOKYO

International Classification(s)

F21V:FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES....

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[Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Miwa, Masanobu	Yokkaichi, JP	3	64
Suga, Yoshinori	Yokkaichi, JP	37	597

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Light guide pipe having elongate roughened protrusions and/or roughened concaves, planar light source unit having a broad viewing angle characteristic, and liquid crystal display device

Number of patents in Portfolio can not be more than 2000

United States of America Patent

09665410

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PATENT NO	6425673
SERIAL NO	09665410
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09665410

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