TREA

Hirokazu Yamamoto

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  • Kanagawa, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Polycarboxylic acid concrete admixture
    • Patent number 7,638,563
    • Issue date Dec 29, 2009
    • Nippon Shokubai Co., Ltd.
    • Tomotaka Nishikawa
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

  • Information Patent Application

    Polycarboxylic Acid Concrete Admixture
    • Publication number 20080027177
    • Publication date Jan 31, 2008
    • NIPPON SHOKUBAI CO., LTD
    • Tomotaka Nishikawa
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...