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Yoichi Nakayama
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Chuo-ku, JP
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6,822,937
Issue date
Nov 23, 2004
TDK Corporation
Takuya Tsukagoshi
G11 - INFORMATION STORAGE
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20020021656
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Feb 21, 2002
TDK Corporation
Takuya Tsukagoshi
G11 - INFORMATION STORAGE