Masahiro Iji

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Patents Grantslast 30 patents

Information Patent Grant
Process for treating sludge and system for the same
- Patent number 5,624,550
- Issue date Apr 29, 1997
- Chemical Grouting Co., Ltd.
- Masahiro Iji
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Process for treating sludge and system for the same
- Patent number 5,462,672
- Issue date Oct 31, 1995
- Chemical Grouting Co., Ltd.
- Masahiro Iji
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE