porationBi-directional ESD protection circuitUS8917265Dec 10, 2012Dec 23, 2014Semiconductor Energy Laboratory Co., Ltd.Semiconductor device, display device and electronic device including a current source and a diode electrically connected at an output of the current sourceUS8934204 *Feb 29, 2012Jan 13, 2015Canon Kabushiki KaishaProtection circuit for semiconductor integrated circuit and driving m