TREA

Kouichi Ohta

Follow

Person

  • Yokohama, JP
People

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