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Osamu Watanabe
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Ootsu, JP
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last 30 patents
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Patent Grant
Permselective membrane
Patent number
4,695,383
Issue date
Sep 22, 1987
Toyo Boseki Kabushiki Kaisha
Shigeji Konagaya
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...