Hsu-Ching Liao

Person

  • Taichung City, TW

Patents Grantslast 30 patents

  • Information Patent Grant

    Electret loudspeaker device

    • Patent number 8,855,339
    • Issue date Oct 7, 2014
    • NATIONAL TAIWAN UNIVERSITY
    • Chih-Kung Lee
    • B32 - LAYERED PRODUCTS
  • Information Patent Grant

    Electret loudspeaker device

    • Patent number 8,699,730
    • Issue date Apr 15, 2014
    • NATIONAL TAIWAN UNIVERSITY
    • Chih-Kung Lee
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

  • Information Patent Application

    FORMING A PIEZOELECTRIC MEMBRANE

    • Publication number 20140134418
    • Publication date May 15, 2014
    • National Taiwan University
    • Chih-Kung Lee
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    ELECTRET LOUDSPEAKER DEVICE

    • Publication number 20130044905
    • Publication date Feb 21, 2013
    • National Taiwan University
    • Chih-Kung Lee
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    ELECTRET LOUDSPEAKER DEVICE

    • Publication number 20130044906
    • Publication date Feb 21, 2013
    • National Taiwan University
    • Chih-Kung Lee
    • B32 - LAYERED PRODUCTS