TREA

Hirofumi Tatsukawa

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Vehicle key system
    • Patent number 6,940,391
    • Issue date Sep 6, 2005
    • Mitsubishi Denki Kabushiki Kaisha
    • Hisashi Ishikura
    • G07 - CHECKING-DEVICES
  • Information Patent Grant

    Vehicle key system
    • Patent number 6,868,170
    • Issue date Mar 15, 2005
    • Mitsubishi Denki Kabushiki Kaisha
    • Masaru Fuku
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Vehicle key system
    • Patent number 6,710,700
    • Issue date Mar 23, 2004
    • Mitsubishi Denki Kabushiki Kaisha
    • Hirofumi Tatsukawa
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Portable transmitter for vehicle key system
    • Patent number 6,376,930
    • Issue date Apr 23, 2002
    • Mitsubishi Denki Kabushiki Kaisha
    • Koji Nagao
    • G07 - CHECKING-DEVICES