TREA

Masayuki Sakai

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  • Kamakura, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Computer keyboard
    • Patent number D310516
    • Issue date Sep 11, 1990
    • Mitsubishi Denki Kabushiki Kaisha
    • Masaki Hara
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Portable computer
    • Patent number D310517
    • Issue date Sep 11, 1990
    • Mitsubishi Denki Kabushiki Kaisha
    • Masaki Hara
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Operation and control unit for a computer
    • Patent number D307265
    • Issue date Apr 17, 1990
    • Mitsubishi Denki Kabushiki Kaisha
    • Masaki Hara
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Operation and control unit for a computer
    • Patent number D307266
    • Issue date Apr 17, 1990
    • Mitsubishi Denki Kabushiki Kaisha
    • Masaki Hara
    • D14 - Recording, communication, or information retrieval equipment