Takashi Tazaki

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Amphoteric polyelectrolyte, method for production thereof, and orga...
- Patent number 5,284,909
- Issue date Feb 8, 1994
- Nippon Shokubai Kagaku Kogyo Co., Ltd.
- Kazutomo Takahashi
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Amphoteric polyelectrolite, method for production thereof, and orga...
- Patent number 5,194,515
- Issue date Mar 16, 1993
- Nippon Shokubai Kagaku Kogyo Co., Ltd.
- Kazutomo Takahashi
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE