TREA

Shuji Kitazawa

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Spatial information search system
    • Patent number 6,708,183
    • Issue date Mar 16, 2004
    • Hitachi, Ltd.
    • Maki Mori
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Map application system
    • Patent number 6,208,935
    • Issue date Mar 27, 2001
    • Hitachi, Ltd.
    • Takaaki Yamada
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS