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Hsien Jen Chang

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  • New Taipei City, TW
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Patents Grantslast 30 patents

  • Information Patent Grant

    Pyroelectric sensing device
    • Patent number 9,651,427
    • Issue date May 16, 2017
    • QISDA (SUZHOU) CO., LTD.
    • Hsien Jung Chang
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Proximity sensing method
    • Patent number 9,360,587
    • Issue date Jun 7, 2016
    • Sensortek Technology Corp.
    • Hsien Jen Chang
    • G01 - MEASURING TESTING

Patents Applicationslast 30 patents

  • Information Patent Application

    PYROELECTRIC SENSING DEVICE
    • Publication number 20160018265
    • Publication date Jan 21, 2016
    • Qisda (SuZhou) Co., ltd
    • HSIEN JUNG CHANG
    • G01 - MEASURING TESTING
  • Information Patent Application

    METHOD AND SYSTEM FOR BROWSING BOOK DATA ON COMPUTER TERMINAL
    • Publication number 20140344675
    • Publication date Nov 20, 2014
    • HSIEN-WEN CHANG
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    OPTICAL TOUCH SENSING STRUCTURE
    • Publication number 20140168163
    • Publication date Jun 19, 2014
    • Subtron Technology Co., Ltd.
    • Ming-Huei Yang
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    PROXIMITY SENSING METHOD
    • Publication number 20140021331
    • Publication date Jan 23, 2014
    • SITRONIX TECHNOLOGY CORP.
    • Hsien Jen Chang
    • G01 - MEASURING TESTING