Syogo Iwai

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Kawasaki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for producing polycarboxylic acid for cement dispersant and...
- Patent number 6,388,038
- Issue date May 14, 2002
- Nippon Shokubai Co., Ltd.
- Tsuyoshi Hirata
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Cement dispersant, method for producing polycarboxylic acid for cem...
- Patent number 6,174,980
- Issue date Jan 16, 2001
- Nippon Shokubai Co., Ltd.
- Tsuyoshi Hirata
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Cement additive, its production process and use
- Patent number 5,912,284
- Issue date Jun 15, 1999
- Nippon Shokubai Co., Ltd.
- Tsuyoshi Hirata
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES