SHI, Junsheng

China

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Total IP 3
Total IP Rank # 512,054
IP Activity Score 0/5.0    0
IP Activity Rank # 1,693,600

Patents

Trademarks

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Last Patent 2007 - Electronic ballast startup outpu...
First Patent 2006 - A passive power factor correctio...

Latest Inventions, Goods, Services

2006 Invention Electronic ballast startup output current-limited circuit for high voltage sodium lamp. A electro...
Invention A passive power factor correction circuit. A passive powerfactor correction circuit includes diod...
Invention Electronic ballast. A electronic ballast, comprises: filter circuit, bridge commutating circuit, ...