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Polyester fiber
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Patent number 6,740,402
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Issue date May 25, 2004
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Teijin Limited
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Ryoji Tsukamoto
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Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
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Polyethylene naphthalate fiber
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Patent number 6,177,192
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Issue date Jan 23, 2001
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Teijin Limited
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Makoto Asano
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D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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Biaxially oriented film
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Patent number 6,124,043
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Issue date Sep 26, 2000
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Teijin Limited
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Ryoji Tsukamoto
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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