Tokyo Metro 36x Tokyo Metro 10000 series (from September 2006) 6x Tokyo Metro 17000 series (from 21 February 2021) Other operators Seibu 6000 and 6050 series (Not all sets are permitted to run on Yūrakuchō Line tracks) Seibu 40000 series (S-Train services) Seibu 40050 series Tobu 9000 series x 8 Tobu 9050 series x 2 Tobu 50070 series (from July 2007) Tokyu 5050-4000 series could run on the line, but only in the special case of emergency schedule adjustments. Former rolling stock Tokyo Metro 7000 series (from 1974 until 29 October 2021) Tokyo Metro 07 series (from 1992 until 2007) Odakyu 60000 series MSE (Romancecar, as Limited Express Bay Resort, occasionally) Depots (main depot) (responsible for minor inspections; for major ones, EMUs are forwarded to the on the Chiyoda Line via underground connecting tracks) (specializes in railcar refurbishment: also used for Chiyoda and Hanzōmon Line railcars) History 30 October 1974: Ikebukuro – Ginza-itchōme section opens. 27 March 1980: Ginza-itchōme – Shintomichō section opens. 24 June 1983: Eidan Narimasu (present Chikatetsu Narimasu) – Ikebukuro section opens 1 October 1983: Seibu Railway Seibu Yūrakuchō Line Kotake-Mukaihara – Shin-Sakuradai section opened, through operation with Eidan Yūrakuchō Line begins. 25 August 1987: Wakōshi – Eidan Narimasu opens. Through service to Tōbu Tōjō Line begins. 8 June 1988: Shintomichō – Shin-kiba opens, current line completed. 18 March 1993: 07 series EMUs introduced. 7 December 1994: New line opened from Kotake-Mukaihara to Ikebukuro. This section was named the "Yūrakuchō New Line". All trains on it made Ikebukuro their terminus and did not stop at Senkawa nor Kanamechō. Through service from Shin-Kiba or Ikebukuro (on the New Line) to on Seibu Yūrakuchō Line begins. 26 March 1998: Through operation to Seibu Ikebukuro Line begins. 1 April 2004: The owner of the line changed from Teito Rapid Transit Authority (TRTA, Eidan) to Tokyo Metro due to the former's privatization. 31 October 2005: Women-only cars introduced. 1 September 2006: 10000 series introduced. 3 May 2008: Limited Express "Bay Resort" (operated first from/to Odakyu Line) begins operating. 14 June 2008: Tokyo Metro Fukutoshin Line began service. Yurakuchō New Line annexed by the Fukutoshin Line. Yurakuchō Line shares tracks with Fukutoshin Line between Wakōshi and Kotake-Mukaihara. Semi-Express service starts running. October 2008: Automatic train control enabled on the Yurakuchō Line. 6 March 2010: Semi-express services abolished. 6 August 2022: "Wanman" one-person operation begins on the section between Kotake-Mukaihara and Shin-Kiba On