Kenichi Otsuka

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Higashiooizumi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of treating a waste water rich in protein
- Patent number 4,371,440
- Issue date Feb 1, 1983
- National Tax Administration Agency
- Kiyoshi Yoshizawa
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE