Hideo Komatsu

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for biological treatment of waste water in downflow opera...
- Patent number 4,454,038
- Issue date Jun 12, 1984
- Chiyoda Chemical Engineering and Construction Co., Ltd.
- Chiaki Shimodaira
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Process for biological treatment of waste water in downflow operation
- Patent number 4,256,573
- Issue date Mar 17, 1981
- Chiyoda Chemical Engineering and Construction Co., Ltd.
- Chiaki Shimodaira
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE