Munehiro Okumura

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Hoya, JP

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Patents Grantslast 30 patents

Information Patent Grant
Aerator and aerobic biological treatment process using same
- Patent number 4,690,764
- Issue date Sep 1, 1987
- Mitsubishi Rayon Engineering Co., Ltd.
- Munehiro Okumura
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Hollow-fiber filter module and filtration method using the same
- Patent number 4,668,401
- Issue date May 26, 1987
- Mitsubishi Rayon Co., Ltd.
- Munehiro Okumura
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL