Osamu Minagawa

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Patents Grantslast 30 patents

Information Patent Grant
Process for producing non-flammable phenolic resin foam
- Patent number 5,916,927
- Issue date Jun 29, 1999
- Revall Co., Ltd.
- Mitsuo Minagawa
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Waterproof lightweight grain-tone decorative panel
- Patent number 5,681,639
- Issue date Oct 28, 1997
- Revall Co., Ltd.
- Mitsuo Minagawa
- E04 - BUILDING
Information Patent Grant
Expanded ceramic molded plate
- Patent number 5,679,452
- Issue date Oct 21, 1997
- Revall Co., Ltd.
- Mitsuo Minagawa
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES