Inventor
Li cheng-zhi
CN4 patents
Patents
4 patentsUS8977256B2Mar 10, 2015
Apparatus and method for subscribing to international roaming plan for communication device
Li cheng-zhi1 citations47
US9146186B2Sep 29, 2015
Assay device and method and electronic device using same
Li cheng-zhi0 citations38
US8854222B2Oct 7, 2014
Emergency message transmission method and electronic device implementing the method
Li cheng-zhi0 citations37
US8982054B2Mar 17, 2015
Keyboard having infrared position detection apparatus and input method using same
Li cheng-zhi0 citations30