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Optical recording method
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Patent number 5,293,567
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Issue date Mar 8, 1994
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Hitachi, Ltd.
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Motoyasu Terao
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G11 - INFORMATION STORAGE
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Recording medium
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Patent number 4,400,707
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Issue date Aug 23, 1983
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Hitachi, Ltd.
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Munehisa Mitsuya
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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Recording medium
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Patent number 4,357,616
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Issue date Nov 2, 1982
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Hitachi, Ltd.
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Motoyasu Terao
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G11 - INFORMATION STORAGE
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Recording member
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Patent number 4,348,461
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Issue date Sep 7, 1982
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Hitachi, Ltd.
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Motoyasu Terao
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY