JR East (East Japan Railway Company): an E233-7000 series EMU working a train of the Saikyō Line from Shinjuku station. From the E233-7000 series, 380 cars were built between 2013 and 2019, to form 38 EMUs of ten cars. It is part of a larger series, known generically as E233, from which several Japanese manufacturers built the huge number of 3,502 cars since 2006, to form EMUs for commuter services.