Yasuo Fukuyo

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for treating ship ballast water
- Patent number 8,123,958
- Issue date Feb 28, 2012
- Katayama Chemical, Inc.
- Yasuo Fukuyo
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Method for destroying cyst of noxious plankton
- Patent number 5,256,423
- Issue date Oct 26, 1993
- Katayama Chemical, Inc.
- Syuzo Egusa
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Patents Applicationslast 30 patents

Information Patent Application
Method for Treating Ship Ballast Water
- Publication number 20090294382
- Publication date Dec 3, 2009
- KATAYAMA CHEMICAL, INC.
- Yasuo Fukuyo
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE