Hirofumi Ohnari

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Tokuyama-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Swirling type micro-bubble generating system
- Patent number 7,472,893
- Issue date Jan 6, 2009
- Hirofumi Ohnari
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Swing type fine air bubble generating device
- Patent number 7,261,283
- Issue date Aug 28, 2007
- Hirofumi Ohnari
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Patents Applicationslast 30 patents

Information Patent Application
Swirling type micro-bubble generating system
- Publication number 20070267763
- Publication date Nov 22, 2007
- Hirofumi Ohnari
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL