TREA

Shinji Hayakawa

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  • Gifu-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Water battery device
    • Patent number 8,540,855
    • Issue date Sep 24, 2013
    • Youji Hayakawa
    • Youji Hayakawa
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Patents Applicationslast 30 patents

  • Information Patent Application

    WATER BATTERY DEVICE
    • Publication number 20110180397
    • Publication date Jul 28, 2011
    • Youji Hayakawa
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE