Tokyo 18th district is a constituency of the House of Representatives

House of Representatives of Japan

The is the lower house of the Diet of Japan. The House of Councillors of Japan is the upper house.The House of Representatives has 480 members, elected for a four-year term. Of these, 180 members are elected from 11 multi-member constituencies by a party-list system of proportional representation,...

 in the Diet of Japan

Diet of Japan

The is Japan's bicameral legislature. It is composed of a lower house, called the House of Representatives, and an upper house, called the House of Councillors. Both houses of the Diet are directly elected under a parallel voting system. In addition to passing laws, the Diet is formally...

 (national legislature). It is located in western Tokyo

Tokyo

, ; officially , is one of the 47 prefectures of Japan. Tokyo is the capital of Japan, the center of the Greater Tokyo Area, and the largest metropolitan area of Japan. It is the seat of the Japanese government and the Imperial Palace, and the home of the Japanese Imperial Family...

 and consists of the cities of Musashino

Musashino, Tokyo

is a city located in Tokyo, Japan.As of October 1, 2010, the city has an estimated population of 137,222 and a population density of 12,788.63 persons per km². The total area is 10.73 km².The city was founded on November 3, 1947...

, Koganei

Koganei, Tokyo

is a city located in Tokyo, Japan. As of July 1, 2011, the city has an officially registered population of 116,055 with 56,296 households and a population density of 10,243.16 persons per km²...

 and Fuchū

Fuchu, Tokyo

is a city located in western Tokyo Metropolis, Japan. As of 2010, the city has an estimated population of 255,394 and a population density of 8,700 persons per km². The total area was 29.34 km²...

. Until 2002, it included Mitaka

Mitaka, Tokyo

is a city located in Tokyo, Japan. As of 1 November 2010, the city has an estimated population of 176,737. The total area is 16.50 km² and is about 50 – 55 meters above sea level...

 (now part of Tokyo 22nd district) instead of Fuchū. As of 2008, 407,322 eligible voters were registered in the district.

Before the electoral reform of 1994, the area had been part of Tokyo 7th district

Tokyo 7th district (1947–1993)

Tokyo 7th district was a constituency of the House of Representatives in the Diet of Japan . Between 1947 and 1993 it elected five, later four representatives by single non-transferable vote...

, where four representatives were elected by Single non-transferable vote

Single non-transferable vote

The single non-transferable vote or SNTV is an electoral system used in multi-member constituency elections.- Voting :In any election, each voter casts one vote for one candidate in a multi-candidate race for multiple offices. Posts are filled by the candidates with the most votes...

 (SNTV).

The district has been represented by popular Democratic Party

Democratic Party of Japan

The is a political party in Japan founded in 1998 by the merger of several opposition parties. Its socially liberal platform is generally considered center-left in the Japanese political spectrum...

 co-founder and former Minister of Health Naoto Kan

Naoto Kan

is a Japanese politician, and former Prime Minister of Japan. In June 2010, then-Finance Minister Kan was elected as the leader of the Democratic Party of Japan and designated Prime Minister by the Diet to succeed Yukio Hatoyama. On 26 August 2011, Kan announced his resignation...

 since its creation in 1994. In the election of 2005 it was the only constituency the opposition could defend in Tokyo against the landslide for Junichiro Koizumi

Junichiro Koizumi

is a Japanese politician who served as Prime Minister of Japan from 2001 to 2006. He retired from politics when his term in parliament ended.Widely seen as a maverick leader of the Liberal Democratic Party , he became known as an economic reformer, focusing on Japan's government debt and the...

's ruling coalition. In 2003, then party chairman Kan beat former Minister of Labour Kunio Hatoyama

Kunio Hatoyama

is a Japanese politician who served as Minister of Internal Affairs and Communications under Prime Minister Taro Aso until June 12, 2009.- Biography :Kunio Hatoyama was born in Tokyo in 1948...

, the younger brother of Democratic Party leader Yukio Hatoyama

Yukio Hatoyama

is a Japanese politician who served as Prime Minister of Japan between 16 September 2009 and 2 June 2010, and was the first ever Prime Minister from the modern Democratic Party of Japan....

 by a margin of more than 50,000 votes.

In the election of 2009

Japanese general election, 2009

A general election in Japan was held on August 30, 2009, for all 480 seats of the House of Representatives of Japan, the lower house of the Diet of Japan....

, Masatada Tsuchiya

Masatada Tsuchiya

is a Japanese politician who has been a member of the House of Representatives of Japan since the September 2005 general election. He resigned his position as mayor of Musashino, Tokyo in order to run against the Deputy President of the Democratic Party of Japan, Naoto Kan, for the seat of Tokyo...

 was the candidate for the ruling LDP

Liberal Democratic Party (Japan)

The , frequently abbreviated to LDP or , is a centre-right political party in Japan. It is one of the most consistently successful political parties in the democratic world. The LDP ruled almost continuously for nearly 54 years from its founding in 1955 until its defeat in the 2009 election...

. Tsuchiya who failed to unseat Kan in 2005 was a representative for the Tokyo proportional representation block where he ranked second on the LDP's list 2005. In 2009 he failed to secure reelection in the Tokyo block.

Election results