Konishi Chemical Industry Co., Ltd.

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Wakayama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for purifying 4,4'-dihydroxydiphenylsulfone
- Patent number 5,097,074
- Issue date Mar 17, 1992
- Konishi Chemical Industry, Limited
- Eiji Ogata
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing 4,4'-dihydroxydiphenyl sulfone having high pu...
- Patent number 4,820,831
- Issue date Apr 11, 1989
- Konishi Chemical Industry Co., Ltd.
- Eiji Ogata
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing halo-substituted diarylsulfones
- Patent number 4,558,161
- Issue date Dec 10, 1985
- Konishi Chemical Industry Co., Ltd.
- Yukichi Morita
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for producing 4,4'-dihydroxydiphenylsulfone of high purity
- Patent number 4,162,270
- Issue date Jul 24, 1979
- Konishi Chemical Industry Co., Ltd.
- Eiji Ogata
- C07 - ORGANIC CHEMISTRY

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