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Oxygen-absorbing container
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Patent number 5,800,887
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Issue date Sep 1, 1998
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Toyo Seikan Kaisha, Ltd.
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Masayasu Koyama
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Container closure with liner
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Patent number 5,381,914
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Issue date Jan 17, 1995
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Toyo Seikan Kaisha, Ltd.
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Masayasu Koyama
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Plastic multilayer vessel
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Patent number 5,246,753
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Issue date Sep 21, 1993
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Toyo Seikan Kaisha Ltd.
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Masayasu Koyama
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B32 - LAYERED PRODUCTS
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Plastic multi-layer vessel
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Patent number 5,153,038
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Issue date Oct 6, 1992
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Toyo Seikan Kaisha, Ltd.
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Masayasu Koyama
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B32 - LAYERED PRODUCTS
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Easily openable liner for vessel closures
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Patent number 4,463,116
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Issue date Jul 31, 1984
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Toyo Seikan Kaisha, Ltd.
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Masayasu Koyama
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C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...