Shinya Kumagai

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Osaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Extruded foamed polyolefin resin carrier for microorganisms in a fl...
- Patent number 5,962,309
- Issue date Oct 5, 1999
- Tsutsunaka Plastic Industry Co., Ltd.
- Shinya Kumagai
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE