昭和電工
Shōwa Station was opened on March 20, 1931 as a temporary stop on the privately held . Tsurumi Rinkō Railway was nationalized into the Japanese Government Railways on July 1, 1943. at which time the stop was upgraded to a full station. The station has been unattended since March 1, 1971. Upon the privatization of the Japanese National Railways on April 1, 1987 the station has been operated by JR East. The station was named Shōwa because it was adjacent to a factory of Shōwa Fertilizer Company (present-day Showa Denko). The Showa Denko factory still exists next to the station.