TREA

Shigekazu Sakata

Follow

Person

  • Saitama, JP
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Public telephone system
    • Patent number 5,463,679
    • Issue date Oct 31, 1995
    • Tamura Electrics Works, Ltd.
    • Osamu Kai
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Public telephone system
    • Patent number 5,448,628
    • Issue date Sep 5, 1995
    • Tamura Electric Works, Ltd.
    • Junichi Muroi
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Protocol conversion system
    • Patent number 5,182,748
    • Issue date Jan 26, 1993
    • Kokusai Denshin Denwa Co., Ltd.
    • Shigekazu Sakata
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE