The is a commuter electric multiple unit

Electric multiple unit

An electric multiple unit or EMU is a multiple unit train consisting of self-propelled carriages, using electricity as the motive power. An EMU requires no separate locomotive, as electric traction motors are incorporated within one or a number of the carriages...

 train type operated by Tobu Railway

Tobu Railway

is a Japanese commuter railway company in the Greater Tokyo Area as well as an intercity and regional operator in the Kantō region. It operates in Tokyo, Saitama, Chiba, Tochigi, and Gunma Prefectures...

 in Japan.

First entering service in 1981 on the Tōbu Tōjō Line, this was the first stainless steel EMU type to be introduced by Tobu. A total of ten 10-car sets were ultimately built for use on through-running services over the Tokyo Metro Yūrakuchō Line

Tokyo Metro Yurakucho Line

The is a subway line owned and operated by Tokyo Metro. The line connects Wakōshi Station in Wakō, Saitama and Shin-Kiba Station in Kōtō, Tokyo. On maps, diagrams and signboards, the line is shown using the color "gold" , and its stations are given numbers using the letter Y.The proper name as...

 and Tokyo Metro Fukutoshin Line, as well as Tōjō Line services between Ikebukuro

Ikebukuro Station

is a railway station located in the Ikebukuro district of Toshima, Tokyo, Japan. With 2.71 million passengers on an average daily in 2007, it is the second-busiest train station in the world , and the busiest station in the Tobu, Seibu and Tokyo Metro networks. It primarily serves commuters from...

 and Ogawamachi

Ogawamachi Station (Saitama)

is a railway station in Ogose, Saitama, Japan, jointly operated by East Japan Railway Company and Tobu Railway.-Lines:Ogawamachi Station is served by the Hachikō Line between and , and also by the Tōbu Tōjō Line from in Tokyo.-Station layout:...

.

Prototype set 9101

Built in October 1981, this was the first stainless steel EMU type to be introduced by Tobu, and featured a bodyline stripe using the same "Royal maroon" colour as previously used on Tobu 1720 series "DRC" trains. The seats on this set were originally brown, but this was later changed to the standard light green colour.

Formation

Designation	Tc1	M1	M2	T1	M1	M3	T2	M1	M4	Tc2
Numbering	9100	9200	9300	9400	9500	9600	9700	9800	9900	9000

The M1 cars are each fitted with one scissors type pantograph.

Production sets 9102-9108

Sets 9102 to 9107 were built in 1987, incorporating a number of minor improvements over the prototype set. Seat width was increased from 425 mm to 450 mm.

An additional set, 9108, was built in 1991, based on the 10030 series lightweight body style.

Formation

Designation	Tc1	M1	M2	T1	M1	M3	T2	M1	M4	Tc2
Numbering	9100	9200	9300	9400	9500	9600	9700	9800	9900	9000

The M1 cars are each fitted with one single-arm pantograph.

9050 series VVVF sets

Two 9050 series sets were introduced in December 1994, coinciding with the opening of the "New Line" (now part of the Tokyo Metro Fukutoshin Line) between Kotakemukaihara and Ikebukuro. These incorporated further design improvements and changes similar to the 20050 series trains, notably VVVF control, bolsterless bogies, LED

LEd

LEd is a TeX/LaTeX editing software working under Microsoft Windows. It is a freeware product....

 destination indicators, LCD interior passenger information displays, and brown seat moquette

Moquette

Moquette is type of fabric with a thick, dense pile. It is a particularly versatile and hard-wearing material, predominantly wool with a small percentage of polyester. Moquette is renowned for its attractive, hard-wearing, durable, and fire-resistant qualities, hence it is commonly used for...

. The passenger information displays were removed in 1999.

Formation

Designation	Tc3	M5	M6	T3	M7	M8	T4	M7	M9	Tc4
Numbering	9150	9250	9350	9450	9550	9650	9750	9850	9950	9050

The M5 and M7 cars are each fitted with one single-arm pantograph.

Refurbishment

From April 2007 to 2008, all of the 9000 and 9050 series sets except prototype set 9101 underwent refurbishment ahead of introduction on Tokyo Metro Fukutoshin Line inter-running services from June 2008. Refurbishment included totally new interiors and cabs based on the 50070 series

Tobu 50000 series

The is a commuter electric multiple unit operated by Tōbu Railway in Japan, manufactured by Hitachi to its "A-train" concept. The trains represent the first use of aluminium body cars on Tōbu commuter trains...

design. Externally, single-arm pantographs were fitted, and the destination indicator blinds replaced with full-colour LED displays. Prototype set 9101 was not refurbished due to the different door spacing of this set, making it incompatible with the platform doors on the Fukutoshin Line. This set is restricted to Tōbu Tōjō Line duties.