Bojun Song

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Device for varying capacitance
- Patent number 7,696,444
- Issue date Apr 13, 2010
- Hanwang Technology Co., Ltd.
- Yingjian Liu
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
MULTI-ORIENTATION HANDWRITING TRACE INPUT DEVICE AND METHOD FOR ROT...
- Publication number 20110199293
- Publication date Aug 18, 2011
- Hanwang Technology Co., Ltd.
- Yingjian Liu
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Device for varing capacitance
- Publication number 20070180923
- Publication date Aug 9, 2007
- Hanwang Technology Co., Ltd.
- Yingjian Liu
- G06 - COMPUTING CALCULATING COUNTING