Masanobu Takeguchi

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Fujisawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of purifying water in fish keeping water tank
- Patent number 4,390,432
- Issue date Jun 28, 1983
- Marui Industry Co., Ltd.
- Masanobu Takeguchi
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Method of inhibiting and eliminating chlorophyceae in water in tank
- Patent number 4,320,085
- Issue date Mar 16, 1982
- Marui Industry Co., Ltd.
- Masanobu Takeguchi
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Method of purifying water in fish keeping water tank
- Patent number 4,297,222
- Issue date Oct 27, 1981
- Marui Industry Co., Ltd.
- Masanobu Takeguchi
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE