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Shigefumi Hida

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  • Tsuchiura, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Objective lens driving device
    • Patent number 4,752,117
    • Issue date Jun 21, 1988
    • Hitachi, Ltd.
    • Atsushi Ichikawa
    • G11 - INFORMATION STORAGE