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goichi Yoshida
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Fuji, JP
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last 30 patents
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Patent Grant
Polyaryl ether sulfone semipermeable membrane and process for produ...
Patent number
4,351,860
Issue date
Sep 28, 1982
Asahi Kasei Kogyo Kabushiki Kaisha
goichi Yoshida
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL