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Mitsunao Sekiwa

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Patents Grantslast 30 patents

  • Information Patent Grant

    Electrophoretic mobility measuring apparatus
    • Patent number 7,449,097
    • Issue date Nov 11, 2008
    • Otsuka Electronics Co., Ltd.
    • Mitsunao Sekiwa
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Spectroscope
    • Patent number 4,922,309
    • Issue date May 1, 1990
    • Otsuka Electronics Co., Ltd.
    • Mitsunao Sekiwa
    • G01 - MEASURING TESTING

Patents Applicationslast 30 patents