Yuji Nakamura

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Funabashi, JP

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Patents Grantslast 30 patents

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Method of preventing the deterioration of a hardened cement-based mass
- Patent number 5,021,260
- Issue date Jun 4, 1991
- Nissan Chemical Industries, Ltd.
- Akio Kitagawa
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Method for preventing hardened cementitious material from deteriora...
- Patent number 4,931,314
- Issue date Jun 5, 1990
- Nissan Chemical Industries Ltd.
- Makoto Takakura
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES