| House of Representatives (Japan) |
| Preceded byToshio Kojima | Chair, Lower House Special Committee on North Korean Abductions and Other Issues 2007–2008 | Succeeded byTakuji Yanagimoto |
| Preceded byYuji Yamamoto | Chair, Lower House Committee on Discipline 2012 | Succeeded byShoichi Kondo |
| Preceded byOkiharu Yasuoka | Chair, Lower House Special Committee on North Korean Abductions and Other Issues 2012–2014 | Succeeded byKatsuei Hirasawa |
| Preceded byOkiharu Yasuoka | Chair, Lower House Special Committee on Political Ethics and Election Law 2014–2016 | Succeeded byKoichi Yamamoto |
| Political offices |
| Preceded byMitsuhiro Miyakoshi, Issui Miura | Senior Vice Minister of Agriculture, Forestry and Fisheries 2006–2007 Served alongside: Masayuki Kunii | Succeeded byMasahiro Imamura, Hiromi Iwanaga |
| Unofficial roles |
| Preceded byYoshiko Ishiba | Spouse of the Prime Minister of Japan 2025–present | Incumbent |