TREA

Hiroki Ishikawa

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  • Tokyo-to, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Communicatory navigation system
    • Patent number 6,263,276
    • Issue date Jul 17, 2001
    • Kabushikikaisha Equos Research
    • Shoji Yokoyama
    • G08 - SIGNALLING
  • Information Patent Grant

    Communicatory navigation system
    • Patent number 6,202,024
    • Issue date Mar 13, 2001
    • Kabushikikaisha Equos Research
    • Shoji Yokoyama
    • G08 - SIGNALLING
  • Information Patent Grant

    Input device for navigation systems
    • Patent number 5,774,362
    • Issue date Jun 30, 1998
    • Kabushikikaisha Equos Research
    • Seiichi Suzuki
    • G01 - MEASURING TESTING