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Sustained release preparations
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Patent number 6,065,687
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Issue date May 23, 2000
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Shin-Etsu Chemical Co., Ltd.
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Hiroshi Suzuki
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Biodegradable sustained-release preparation
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Patent number 5,993,843
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Issue date Nov 30, 1999
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Research Association for Biotechnology of Agricultural
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Toyohisa Sakurada
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Cyanoethylpullulan
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Patent number 4,322,524
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Issue date Mar 30, 1982
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Shin-Etsu Chemical Co. Ltd.
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Yoshiro Onda
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...