Ken Hirane

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Patents Grantslast 30 patents

Information Patent Grant
Water treatment system based on denitrification
- Patent number 6,159,364
- Issue date Dec 12, 2000
- Daiwa Kogyo Kabushiki Kaisha
- Ken Hirane
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Water processing system for highly contaminated water
- Patent number 5,578,202
- Issue date Nov 26, 1996
- Daiwa Kogyo Kabushiki Kaisha
- Ken Hirane
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE