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Molding die for disc substrate
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Patent number 7,101,171
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Issue date Sep 5, 2006
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Sony Disc & Digital Solutions Inc.
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Osamu Matsuura
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Clamping apparatus
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Patent number 6,866,500
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Issue date Mar 15, 2005
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Sony Corporation
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Shinsuke Kishi
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Injection molding apparatus and method
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Patent number 6,841,103
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Issue date Jan 11, 2005
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Sony Disc Technology Inc.
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Shinsuke Kishi
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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