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Hiroshi Takeuchi
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Nobeoka, JP
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last 30 patents
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Patent Grant
Process for recovering heavy metal ions or heavy metal ions and hal...
Patent number
4,238,294
Issue date
Dec 9, 1980
Asahi Kasei Kogyo Kabushiki Kaisha
Hiroshi Takeuchi
C07 - ORGANIC CHEMISTRY
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Patent Grant
Process for the production of a high purity terephthalic acid
Patent number
4,230,882
Issue date
Oct 28, 1980
Asahi Kasei Kogyo Kabushiki Kaisha
Maomi Seko
C07 - ORGANIC CHEMISTRY
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Patent Grant
Process for recovering terephthalic acid
Patent number
4,201,871
Issue date
May 6, 1980
Asahi Kasei Kogyo Kabushiki Kaisha
Masatoshi Tanouchi
C07 - ORGANIC CHEMISTRY