TREA

Qifu Liu

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  • Shanghai, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Level shift circuit
    • Patent number 8,723,585
    • Issue date May 13, 2014
    • Shanghai Belling Corp., Ltd.
    • Zhengcai Qin
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS

Patents Applicationslast 30 patents

  • Information Patent Application

    LEVEL SHIFT CIRCUIT
    • Publication number 20130249617
    • Publication date Sep 26, 2013
    • SHANGHAI BELLING CORP LTD
    • Zhengcai Qin
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS