TREA

Keiichi Tsuto

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  • Wakayama, JA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Sulfonation apparatus
    • Patent number 4,097,242
    • Issue date Jun 27, 1978
    • Kao Soap Co., Ltd.
    • Keiichi Tsuto
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Process for sulfonation
    • Patent number 4,086,256
    • Issue date Apr 25, 1978
    • Kao Soap Co., Ltd.
    • Keiichi Tsuto
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Gas feeder for sulfonation apparatus
    • Patent number 4,072,470
    • Issue date Feb 7, 1978
    • Kao Soap Co., Ltd.
    • Keiichi Tsuto
    • C07 - ORGANIC CHEMISTRY