Hitoshi Koshimizu

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Cement-additive for inhibiting concrete-deterioration
- Patent number 5,435,846
- Issue date Jul 25, 1995
- Nippon Chemical Industrial Co., Ltd.
- Hidenobu Tatematsu
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES