Naoko Takahashi

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Himeji-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Water-absorbing agent production process with surface crosslinking...
- Patent number 7,420,018
- Issue date Sep 2, 2008
- Nippon Shokubai Co., Ltd.
- Katsuyuki Wada
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Water-absorbing agent and its production process and use
- Patent number 6,964,998
- Issue date Nov 15, 2005
- Nippon Shokubai Co., Ltd.
- Katsuyuki Wada
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Absorbent, absorbing product based thereon, and water-absorbing resin
- Patent number 6,617,489
- Issue date Sep 9, 2003
- Nippon Shokubai Co., Ltd.
- Katsuyuki Wada
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Water-absorbent agents containing polycarboxylic amine chelating ag...
- Patent number 6,599,989
- Issue date Jul 29, 2003
- Nippon Skokubai Co., Ltd.
- Katsuyuki Wada
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Absorbent article and production process therefor
- Patent number 6,150,582
- Issue date Nov 21, 2000
- Nippon Shokubai Co., Ltd.
- Katsuyuki Wada
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents

Information Patent Application
Water-absorbing agent and its production process and use
- Publication number 20050272600
- Publication date Dec 8, 2005
- NIPPON SHOKUBAI CO., LTD.
- Katsuyuki Wada
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Water-absorbing agent and its production process and use
- Publication number 20030176589
- Publication date Sep 18, 2003
- NIPPON SHOKUBAI CO., LTD.
- Katsuyuki Wada
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
WATER-ABSORBING AGENT AND ITS PRODUCTION PROCESS AND USE
- Publication number 20020120074
- Publication date Aug 29, 2002
- KATSUYUKI WADA
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Absorbent, absorbing product based thereon, and water-absorbing resin
- Publication number 20020007170
- Publication date Jan 17, 2002
- Katsuyuki Wada
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL