Nippon Ishin no Kai

Japan Innovation Party (日本維新の会) is a Japanese neoconservative political party.[3] Formed as Initiatives from Osaka in October 2015 from a split in the Japan Innovation Party, the party became the third-biggest opposition party in the National Diet following the July 2016 House of Councillors election.

Japan Innovation Party

PresidentIchirō Matsui[1]
Toranosuke Katayama
Secretary-GeneralNobuyuki Baba
Founded2 November 2015 (2015-11-02)
Split fromJapan Innovation Party
HeadquartersOsaka, Osaka Prefecture, Japan
NewspaperNippon Ishin[2]
Economic liberalism
Limited government
Political positionCentre-right[5] to right-wing[6]
Colours     Green
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The party was formed in October 2015 under the name Initiatives from Osaka (おおさか維新の会, Ōsaka Ishin no Kai) by Osaka governor Ichirō Matsui and then-Osaka mayor Tōru Hashimoto after they and their supporters left the Japan Innovation Party.[1][7] The Japanese name was the same as the Osaka Restoration Association, which was also formed by Hashimoto, but was differentiated by writing "Osaka" in hiragana (おおさか) rather than in kanji (大阪).[1]

The first major election contested by the party was the July 2016 House of Councillors election. The party performed well in the Kansai region, winning two of four seats in the Osaka at-large district and one of three seats in the Hyogo at-large district.[8][9] In the national PR block the party finished fifth with 5,153,584 votes (9.2%), which meant it won 4 of the 48 seats. The majority of its votes were again centred around Osaka; the party received the most votes in Osaka Prefecture (1,293,626; 34.9%)[10] and was second behind the Liberal Democratic Party in Hyogo Prefecture (470,526; 19.5%).[11] The gain in seats made the party the third-biggest opposition in the National Diet.[12] However, after the election Matsui said the poor showing outside of Kansai was unacceptable for a national party, and that the party would adopt a new name that did not include the word "Osaka" in an attempt to broaden its nationwide appeal.[13] At a meeting on 23 August 2016 the party voted to change its name to Nippon Ishin no Kai (日本維新の会) but did not announce an official English name.[12]


No. Name Term of office
Took Office Left Office
Split from: Innovation Party (centre-right)
1 Tōru Hashimoto 2 November 2015 12 December 2015
2 Ichirō Matsui 12 December 2015 23 August 2016
3 Co-leadership
Ichirō Matsui   Toranosuke Katayama
23 August 2016 Incumbent


  1. "Osaka Mayor Toru Hashimoto's new party debuts". Japan Times. 31 October 2015. Retrieved 4 November 2015.
  2. Nippon Ishin no Kai (8 September 2016). "機関紙 日本維新 Vol.05 - 松井一郎" (PDF) (in Japanese). Retrieved 27 July 2019.
  3. Eric Johnston (3 October 2012). "Nippon Ishin no Kai: Local but with national outlook". Japan Times. Retrieved 22 April 2019.
  5. Gregory W. Noble (13 July 2019). "Abe sails toward another electoral victory". East Asia Forum. Retrieved 2019-09-07.
  6. Ben McGrath (12 July 2019). "Japanese PM pushes constitutional revision ahead of upper house election". World Socialist Web Site. International Committee of the Fourth International. Retrieved 2019-09-07.
  7. "Abe meets ex-Osaka Mayor Hashimoto on heels of resignation". Nikkei Asian Review. 20 December 2015. Retrieved 22 December 2015.
  8. "開票結果・速報(選挙区・大阪府)【参議院選挙2016】" [Results (Osaka District) [House of Councillors Election 2016]]. Yomiuri Shimbun (in Japanese). Retrieved 21 July 2016.
  9. "開票結果・速報(選挙区・兵庫県)【参議院選挙2016】" [Results (Hyogo District) [House of Councillors Election 2016]]. Yomiuri Shimbun (in Japanese). Retrieved 21 July 2016.
  10. "比例代表選出議員選挙 政党等別得票数(大阪府計)" [National Block Election - Votes by Party (Osaka Prefecture Total)] (in Japanese). Osaka Prefecture Electoral Commission. 11 July 2016. Retrieved 21 July 2016.
  11. "参議院比例代表選出議員選挙 開票結果(総括表)" [House of Councillors National Block Election Results (Compilation Table)] (PDF) (in Japanese). Hyogo Prefecture Electoral Commission. 11 July 2016. p. 1. Retrieved 21 July 2016.
  12. Johnston, Eric (23 August 2016). "In bid to go national, Osaka Ishin no Kai changes its name". Japan Times. Retrieved 1 September 2016.
  13. "Osaka Ishin to drop 'Osaka' from name in bid to boost appeal, taps Watanabe as deputy". Japan Times. 13 July 2016. Retrieved 21 July 2016.
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