TREA

Hsien-Ta Chen

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  • Taoyuan City, TW
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Patents Applicationslast 30 patents

  • Information Patent Application

    Earphone
    • Publication number 20070081688
    • Publication date Apr 12, 2007
    • Hsien-Ta Chen
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Wireless headphone with a self-actuated switch
    • Publication number 20060083397
    • Publication date Apr 20, 2006
    • OBO PRO.2 INC.
    • Hsien-Ta Chen
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE