Magnetic disc with a flat RAM area and disc device

United States of America Patent

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Sep 29, 1998
Grant Date
N/A
app pub date
Dec 27, 1995
filing date
Dec 28, 1994

priority date (Note)
Expired

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Abstract

A magnetic disc having a ROM area and a RAM area which are separated. The ROM only plane and the RAM only plane are separated on the magnetic disc.

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Patent Owner(s)

Patent Owner	Address
SONY CORPORATION	TOKYO 108-0075

International Classification(s)

G11B:INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BET....

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[Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Yada, Hiroaki	Kanagawa, JP	33	437
Yamamoto, Noriyuki	Tokyo, JP	124	1548

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Magnetic disc with a flat RAM area and disc device

Number of patents in Portfolio can not be more than 2000

United States of America Patent

08579551

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PATENT NO	5815333
SERIAL NO	08579551
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08579551

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