Yoshiyuki Sumiyama

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Ichihara, JP

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Patents Grantslast 30 patents

Information Patent Grant
Pervaporation method of selectively separating water from an organi...
- Patent number 4,997,462
- Issue date Mar 5, 1991
- Ube Industries, Ltd.
- Masayuki Nakatani
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...