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Kenji Tamada

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Score collector for base-ball game
    • Patent number D297714
    • Issue date Sep 20, 1988
    • Silver Seiko Limited
    • Kenji Tamada
    • D10 - Measuring, testing, or signalling instruments
  • Information Patent Grant

    Menu printer
    • Patent number D284771
    • Issue date Jul 22, 1986
    • Silver Seiko Limited
    • Kenji Tamada
    • D18 - Printing and office machinery