History
Cosmosquare Station opened on 18 December 1997 as the then-westernmost station of the Osaka subway network, managed by Osaka Port Transport System (OTS). It serves both the Chūō Line (C10) and the Nankō Port Town Line New Tram (P09), of which it is the starting terminus. The track is still owned by OTS as a third-sector infrastructure operator, with Osaka Metro running services as a Type II operator. On 1 July 2005 management transferred to the Osaka Municipal Transportation Bureau, and on 1 April 2018 it became an Osaka Metro station as part of the bureau's corporatisation. Platform-edge doors began service on the Chūō Line platform on 20 July 2024, and on 19 January 2025 the Chūō Line was extended west to Yumeshima Station, making Cosmosquare an intermediate stop.
History summarized from Japanese & English Wikipedia · last reviewed 2026-05-18.
Notes
The platform once housed a small aquarium, removed due to maintenance cost; the station's now-retired arrival jingle imitated the sound of an ocean wave.