JR East launches Series E7 trains for Shinkansen HSR March 18, 2014 | Asia Pacific Company News East Japan Railway Company (JR East) has launched its first dual-system Series E7 trainsets on the Nagano Shinkansen high-speed transit (HSR) line in Japan. These trainsets will replace the Series E2 ... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password