History
Ōsakakō Station opened on 11 December 1961 with the inaugural section of the Osaka Municipal Subway Line 4 (today's Chūō Line) between Ōsakakō and Bentenchō, serving as the line's western terminus. On 18 December 1997 it became the through-running boundary with the OTS Techno-port Line to Cosmosquare. The OTS rail business was transferred to the municipal subway on 1 July 2005, making Ōsakakō an intermediate station on a unified line. The station passed to Osaka Metro on 1 April 2018 with the privatisation reform. A station renovation themed "sea" finished on 31 March 2025, and a new west-end viewing deck opened on 11 April 2025.
History summarized from Japanese & English Wikipedia · last reviewed 2026-05-18.
Notes
Long before the subway station, this same corner hosted three different Osaka City Tram stops — Ōsakakō, Sanjō-dōri Yonchōme, and Tempōzan-sanbashi — all of which were suspended in August 1960 to clear the way for subway construction.