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Air filter
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Patent number 6,471,740
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Issue date Oct 29, 2002
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Taisei Corporation
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Sadao Kobayashi
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D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
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Air filter for clean room
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Patent number 6,106,586
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Issue date Aug 22, 2000
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Taisei Corporation
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Sadao Kobayashi
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D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
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Air filter for clean room
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Patent number 5,997,598
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Issue date Dec 7, 1999
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Taisei Corporation
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Sadao Kobayashi
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D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
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Agent for absorbing and releasing water vapor
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Patent number 4,683,258
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Issue date Jul 28, 1987
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Mitsui Toatsu Chemicals, Incorporated
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Hiroshi Itoh
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Iodine cell
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Patent number 4,656,105
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Issue date Apr 7, 1987
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Mitsuit Toatsu Chemicals, Inc.
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Sadao Kobayashi
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H01 - BASIC ELECTRIC ELEMENTS
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