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Amorphous silica filler
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Patent number 5,418,043
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Issue date May 23, 1995
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Mizusawa Industrial Chemicals, Ltd.
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Masahide Ogawa
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B82 - NANO-TECHNOLOGY
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Amorphous silica filler
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Patent number 5,384,191
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Issue date Jan 24, 1995
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Mizusawa Industrial Chemicals, Ltd.
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Masahide Ogawa
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B82 - NANO-TECHNOLOGY
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Alumina-silica resin additive
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Patent number 5,298,234
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Issue date Mar 29, 1994
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Mizusawa Industrial Chemicals, Ltd.
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Tadahisa Nakazawa
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Amorphous silica-type filler
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Patent number 5,266,397
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Issue date Nov 30, 1993
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Mizusawa Industrial Chemicals, Ltd.
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Masahide Ogawa
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B82 - NANO-TECHNOLOGY
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Amorphous silica spherical particles
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Patent number 5,236,683
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Issue date Aug 17, 1993
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Mizusawa Industrial Chemicals, Ltd.
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Tadahisa Nakazawa
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Composite adsorbent
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Patent number 4,963,519
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Issue date Oct 16, 1990
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Mizusawa Industrial Chemcals, Ltd.
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Seiji Okabayashi
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Decolorized oyster extract concentrate
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Patent number 4,770,894
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Issue date Sep 13, 1988
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Mizusawa Industrial Chemicals, Ltd.
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Koichi Usui
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A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
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