Masahiko Toyoshima

Person

  • Osaka, JP

Patents Grantslast 30 patents

  • Information Patent Grant

    Speakerphone

    • Patent number 6,377,679
    • Issue date Apr 23, 2002
    • Kabushiki Kaisha Kobe Seiko Sho
    • Hiroshi Hashimoto
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE