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Data storage medium
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Patent number 5,862,174
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Issue date Jan 19, 1999
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Kabushiki Kaisha Toshiba
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Tsuneshi Yokota
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G06 - COMPUTING CALCULATING COUNTING
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Information recording medium
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Patent number 5,239,533
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Issue date Aug 24, 1993
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Kabushiki Kaisha Toshiba
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Tomohisa Yoshimaru
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G11 - INFORMATION STORAGE
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Output stabilizing device
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Patent number 4,516,242
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Issue date May 7, 1985
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Tokyo Shibaura Denki Kabushiki Kaisha
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Tsuneshi Yokota
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G11 - INFORMATION STORAGE
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Automatic focusing device
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Patent number 4,503,324
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Issue date Mar 5, 1985
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Tokyo Shibaura Denki Kabushiki Kaisha
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Tsuneshi Yokota
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G11 - INFORMATION STORAGE
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Optical disk apparatus
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Patent number 4,481,613
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Issue date Nov 6, 1984
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Tokyo Shibaura Denki Kabushiki Kaisha
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Tsuneshi Yokota
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G11 - INFORMATION STORAGE