Kazuo Hamano

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Wakayama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for preparation of 4,4'-dihydroxydiphenylsulfone
- Patent number 5,241,121
- Issue date Aug 31, 1993
- Konishi Chemical Ind. Co., Ltd.
- Eiji Ogata
- C07 - ORGANIC CHEMISTRY