Masakazu Sekiguchi

Sources

• commons.wikimedia.org · checked Oct 12, 2026 photo: [world:jp-national] Wikimedia Commons file page via Wikidata P18, licence and author from the Commons API (imageinfo/extmetadata), read 2026-10-12. For: Masakazu Sekiguchi
• shugiin.go.jp · checked Oct 12, 2026 Members' names and affiliation from the House of Representatives roster (議員一覧, as of 2026-09-28) and House of Councillors roster (as of 2026-10-12); English names and Wikidata ids from Wikidata SPARQL matched on the official Japanese name and kana reading (official sites publish no English names for members), read 2026-10-12. Fallback: Wikidata, because neither house publishes English names of members. Ministers, Speakers and Presidents use the English form on the official English site. For: Masakazu Sekiguchi
• sangiin.go.jp · checked Oct 12, 2026 Official member rosters of the House of Representatives (as of 2026-09-28) and the House of Councillors (as of 2026-10-12), read 2026-10-12: official Japanese names of members. For: Masakazu Sekiguchi in Japanese
• sangiin.go.jp · checked Oct 12, 2026 Current terms from the House of Representatives roster (shugiin.go.jp 議員一覧, as of 2026-09-28), House of Councillors roster (sangiin.go.jp, as of 2026-10-12) with group and term-expiry date, Cabinet (japan.kantei.go.jp/105/meibo/daijin/index.html, inaugurated 2026-09-17; former list /105/meibo_a/ inaugurated 2026-02-18), Speakers (shugiin.go.jp English 'Officers of the House', as of 2026-10-05), House of Councillors officers (sangiin.go.jp yakuin, 2026-10-12), Supreme Court justices (courts.go.jp 最高裁判所の裁判官), Emperor (kunaicho.go.jp). Member start dates are left empty because the rosters do not give them; party is the member's in-house group mapped to its party (groups mixing party and non-party members are mapped to the party). Read 2026-10-12. For: President of the House of Councillors, Member of the House of Councillors, Saitama
• sangiin.go.jp · checked Oct 12, 2026 House of Councillors, 会派別所属議員数, as of 2026-10-12, read 2026-10-12: full official name of the in-house group in term.note (was the roster abbreviation); group totals match the stored members (464 + 1 vacancy; 247 + 1 vacancy). For: Member of the House of Councillors, Saitama
• shugiin.go.jp · checked Oct 12, 2026 Official Japanese names from the National Diet, Cabinet, Courts and party sites (shugiin.go.jp, sangiin.go.jp, kantei.go.jp, courts.go.jp), read 2026-10-12: Japanese official names of authorities, offices and parties. For: President of the House of Councillors in Japanese, Member of the House of Councillors in Japanese