East Japan Railway Co. is looking to introduce "walkthrough" ticket gates at stations that will enable passengers to access gates via a specialized smartphone application, sources familiar with the plan said Wednesday.Passengers will not have to bring their prepaid commuter passes, such as Suica, out of their pockets or bags in the system the company, known as JR East, aims to launch in two to three years, the sources said.Under the envisaged system, millimeter waves will be emitted from an antenna placed on the ceiling above a gate that will open once data sent from the passenger's smartph…READ FULL ARTICLE