TREA

Masao Wanami

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  • Yokohama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Portable telephone system
    • Patent number 5,838,770
    • Issue date Nov 17, 1998
    • Hitachi, Ltd.
    • Yutaka Fukushima
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Portable telephone system
    • Patent number 5,579,370
    • Issue date Nov 26, 1996
    • Hitachi, Ltd.
    • Yutaka Fukushima
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE