The is a class of four DC electric locomotive

Electric locomotive

An electric locomotive is a locomotive powered by electricity from overhead lines, a third rail or an on-board energy storage device...

s operated by Tokyo Metropolitan Bureau of Transportation

Tokyo Metropolitan Bureau of Transportation

The is Tokyo's public transportation authority. Its subway lines are commonly described as 都営 Toei, meaning "operated by the metropolitan government ." It is one of two rapid transit systems making up the Tokyo subway system, the other being Tokyo Metro.-Toei Subway:The lines were originally...

 (Toei) in Japan.

Four locos (numbered E5001 to E5004) were delivered from Kawasaki Heavy Industries

Kawasaki Heavy Industries

is an international corporation based in Japan. It has headquarters in both Chūō-ku, Kobe and Minato, Tokyo.The company is named after its founder Shōzō Kawasaki and has no connection with the city of Kawasaki, Kanagawa....

 in 2005 for use in hauling linear-motor powered Ōedo Line

Toei Oedo Line

The is a subway line in Tokyo, Japan operated by the Tokyo Metropolitan Bureau of Transportation . It commenced full operations on December 12, 2000; using the Japanese calendar this reads "12/12/12" as the year 2000 equals Heisei 12...

 trainsets to the Magome Workshops on the Asakusa Line in Ōta, Tokyo

Ota, Tokyo

is one of the 23 Special wards of Tokyo, Japan.As of May 1, 2011, the ward has an estimated population of 676,458, with 348,492 households, and a population density of 11,376.69 persons per km²...

for heavy overhaul from 2006 following the completion of the Shiodome Link Line. They are single-ended locomotives which work as permanently coupled pairs.