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Head tracking servo pattern
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Patent number 5,786,958
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Issue date Jul 28, 1998
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Canon Denshi Kabushiki Kaisha
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Ryuichi Negishi
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G11 - INFORMATION STORAGE
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Head tracking servo pattern
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Patent number 5,453,887
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Issue date Sep 26, 1995
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Canon Denshi Kabushiki Kaisha
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Ryuichi Negishi
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G11 - INFORMATION STORAGE
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Flexible disc drive
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Patent number D359276
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Issue date Jun 13, 1995
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Canon Kabushiki Kaisha
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Hitoshi Kurihara
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D14 - Recording, communication, or information retrieval equipment
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Card processing apparatus
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Patent number 4,136,819
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Issue date Jan 30, 1979
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Canon Kabushiki Kaisha
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Tomohiko Torita
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G06 - COMPUTING CALCULATING COUNTING