Ryuji Kojima

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for treating cyanide waste liquid
- Patent number 7,253,332
- Issue date Aug 7, 2007
- Nihon Parkerizing Co., Ltd.
- Ryuji Kojima
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Patents Applicationslast 30 patents

Information Patent Application
Method for treating cyanide waste liquid
- Publication number 20050070752
- Publication date Mar 31, 2005
- Ryuji Kojima
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE