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    UNAUTHORIZED COMMUNICATION ESTABLISHMENT PREVENTION SYSTEM

    Free access
    IMAI TOMOMI / KOGA KENICHI / IWASHITA AKITOSHI | European Patent Office | 2020

      UNAUTHORIZED COMMUNICATION ESTABLISHMENT PREVENTION SYSTEM

      Free access
      IMAI TOMOMI / KOGA KENICHI / IWASHITA AKITOSHI | European Patent Office | 2017

      UNAUTHORIZED COMMUNICATION ESTABLISHMENT PREVENTION SYSTEM

      Free access
      IMAI TOMOMI / KOGA KENICHI / IWASHITA AKITOSHI | European Patent Office | 2020

    RADIO WAVE PROPAGATION DISTANCE ESTIMATION DEVICE

    Free access
    KOGA KENICHI / IMAI TOMOMI / IWASHITA AKITOSHI et al. | European Patent Office | 2018

    AUTHENTICATION SYSTEM

    Free access
    UCHIKI KAZUTERU / IWASHITA AKITOSHI / KOGA KENICHI et al. | European Patent Office | 2019

    DISTANCE MEASURING SYSTEM

    Free access
    UCHIKI KAZUTERU / IWASHITA AKITOSHI / MORI MEGUMI et al. | European Patent Office | 2019