Hirokazu Hosaka

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Ibaraki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for the recovery of acetone
- Patent number 4,336,109
- Issue date Jun 22, 1982
- Sumitomo Chemical Company, Limited
- Hirokazu Hosaka
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for separation and purification of dihydric phenols
- Patent number 4,308,110
- Issue date Dec 29, 1981
- Sumitomo Chemical Company Limited
- Hirokazu Hosaka
- C07 - ORGANIC CHEMISTRY