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Yoshiro Ii
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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
Information
Patent Grant
Polyaryl ether sulfone semipermeable membrane and process for produ...
Patent number
4,286,015
Issue date
Aug 25, 1981
Asahi Kasei Kogyo Kabushiki Kaisha
Koichi Yoshida
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL