Yasuo Kataoka

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Hydrophilic fine gel particles and process for production thereof
- Patent number 5,043,407
- Issue date Aug 27, 1991
- Nippon Zeon Co., Ltd.
- Jun Hasegawa
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Hydrophilic fine gel particles and process for production thereof
- Patent number 4,988,568
- Issue date Jan 29, 1991
- Nippon Zeon Co., Ltd.
- Jun Hasegawa
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...