Masaaki Andou

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Patents Grantslast 30 patents

Information Patent Grant
Method of treating reverse osmosis membrane element, and reverse os...
- Patent number 6,821,430
- Issue date Nov 23, 2004
- Nitto Denko Corporation
- Masaaki Andou
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Methods of running and washing spiral wound membrane modules
- Patent number 6,533,937
- Issue date Mar 18, 2003
- Nitto Denko Corporation
- Tetsurou Adachi
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Methods of running and washing spiral wound membrane module
- Patent number 6,432,310
- Issue date Aug 13, 2002
- Nitto Denko Corporation
- Masaaki Andou
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Treatment system and treatment method employing spiral wound type m...
- Patent number 6,402,956
- Issue date Jun 11, 2002
- Nitto Denko Corporation
- Masaaki Andou
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Patents Applicationslast 30 patents

Information Patent Application
Method of treating reverse osmosis membrane element, and reverse os...
- Publication number 20030066805
- Publication date Apr 10, 2003
- Masaaki Andou
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL