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Sakumi Fujii

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  • Shin-nanyo, JA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Process for preparing pure phosphoric acid
    • Patent number 4,083,937
    • Issue date Apr 11, 1978
    • Toyo Soda Manufacturing Co., Ltd.
    • Itaru Toshimitsu
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Grant

    Phosphoric acid purification
    • Patent number 3,978,196
    • Issue date Aug 31, 1976
    • Toyo Soda Manufacturing Co., Ltd.
    • Itaru Toshimitsu
    • C01 - INORGANIC CHEMISTRY