TREA

Yoshinori Ohta

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  • Ichinoseki-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Electromagnetic sound generator
    • Patent number 6,674,197
    • Issue date Jan 6, 2004
    • NEC Tokin Iwate, Ltd.
    • Katsuya Iwabuchi
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

  • Information Patent Application

    Electromagnetic sound generator
    • Publication number 20020109424
    • Publication date Aug 15, 2002
    • NEC TOKIN IWATE, LTD.
    • Katsuya Iwabuchi
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE