Masaaki Ozawa

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Niiza, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for production of cellular concrete
- Patent number 4,683,003
- Issue date Jul 28, 1987
- Misawa Home Kabushika Kaisha
- Sota Nakano
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Process for production of cellular concrete
- Patent number 4,655,979
- Issue date Apr 7, 1987
- Misawa Home Kabushiki Kaisha
- Sota Nakano
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES