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Base film of digital compact cassette tape
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Patent number 5,419,942
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Issue date May 30, 1995
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Diafoil Hoechst Company, Limited
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Narihiro Masuda
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Polyester film for capacitor
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Patent number 5,153,302
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Issue date Oct 6, 1992
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Diafoil Company, Limited
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Narihiro Masuda
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Magnetic card
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Patent number 4,973,515
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Issue date Nov 27, 1990
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Diafoil Company, Ltd.
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Satoshi Otonari
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Minute-cellular polyester film
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Patent number 4,871,784
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Issue date Oct 3, 1989
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Diafoil Company, Limited
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Satoshi Otonari
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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