Hiroyuki Kumakura

Person

  • Choufu, JP

Patents Grantslast 30 patents

  • Information Patent Grant

    Loudspeaker

    • Patent number 5,452,366
    • Issue date Sep 19, 1995
    • Kabushiki Kaisha Kenwood
    • Yoshio Sakamoto
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE