A shinkansen made an emergency stop between northeastern Japan and Tokyo on Thursday after its two linked trains uncoupled, railway operator JR East said, but no injuries were reported among the some 320 people aboard.The incident involving the Komachi and Hayabusa high-speed trains on the Tohoku Shinkansen Line marked the first time they have uncoupled while in motion, according to JR East. The trouble occurred at 8:10 a.m. between Furukawa and Sendai stations in Miyagi Prefecture.A total of 72 trains on the Tohoku, Yamagata, and Akita Shinkansen lines were canceled and 35 delayed, affecti…READ FULL ARTICLE