Yasuo Ogawa

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Kawasaki, JA

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Patents Grantslast 30 patents

Information Patent Grant
Process for producing partially hydrolyzed polyacrylamide in the pr...
- Patent number 3,968,093
- Issue date Jul 6, 1976
- Nitto Chemical Industry Co., Ltd.
- Masao Hasegawa
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polymerization of acrylamide in the presence of water-soluble nitro...
- Patent number 3,951,934
- Issue date Apr 20, 1976
- Nitto Chemical Industry Co., Ltd.
- Iwao Ohshima
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for purifying acrylamides
- Patent number 3,947,518
- Issue date Mar 30, 1976
- Nitto Kagaku Kogyo Kabushiki Kaisha
- Iwao Ohshima
- C07 - ORGANIC CHEMISTRY