Yuichi Asai

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of treating waste water to remove harmful ion by coagulating...
- Patent number 5,855,793
- Issue date Jan 5, 1999
- NEC Corporation
- Kenichi Ikeda
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Method of treating waste water to remove harmful ion by coagulating...
- Patent number 5,750,033
- Issue date May 12, 1998
- NEC Corporation
- Kenichi Ikeda
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE