Kiyoshi Kumagawa

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Ube, JP

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Patents Grantslast 30 patents

Information Patent Grant
Organic silicon polymer, inorganic fiber with silicon carbide base,...
- Patent number 6,582,650
- Issue date Jun 24, 2003
- Ube Industries, Ltd.
- Kiyoshi Kumagawa
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Dimensionally stable polyimide film and process for preparation the...
- Patent number 4,725,484
- Issue date Feb 16, 1988
- Ube Industries, Ltd.
- Kiyoshi Kumagawa
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...