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Akihiro Watanabe
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Shinagawa, JP
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last 30 patents
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Patent Grant
Random copolymer containing hexagonal imide units, a process for pr...
Patent number
4,820,778
Issue date
Apr 11, 1989
Asahi Kasei Kokyo Kabushiki Kaisha
Ikuji Ohtani
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...