Constitutional Litigation

Case challenging the constitutionality of electoral vote weight disparity under Article 14 of the Japanese Constitution.

1. 令和7(行ケ)2 人口比例選挙請求事件

2. Jurisdiction: Japan (2025-10-26)
3. Victims<![CDATA[无]]>Defendants<![CDATA[Central Election Management Council]]>Plaintiffs<![CDATA[Hiroyuki Uewaki]]><![CDATA[Kaoru Inoue]]>Investigators<![CDATA[无]]>Prosecutors<![CDATA[无]]>Defense Attorneys<![CDATA[无]]>Plaintiff Attorneys<![CDATA[无]]>Judges<![CDATA[Yukihiko Imaizaki]]>Institutions<![CDATA[Supreme Court of Japan]]><![CDATA[Tokyo High Court]]><![CDATA[Central Election Management Council]]>
4. Case Tags: Constitutional Litigation;Vote Value Disparity;Supreme Court of Japan;Electoral Reform

1. Reiwa 7 (Gyo-Ke) 1 Population Proportional Election Litigation

2. Jurisdiction: Japan (2025-02-10)
3. Original Case: 令和7(行ケ)1 人口比例選挙請求事件
4. DefendantsElection Administration CommissionPlaintiffsKozo YamamotoHiroshi OkadaPlaintiff AttorneysMasashi YoritomiTeam of Constitutional ScholarsJudgesPresiding Judge Akira OjimaInstitutionsTokyo High CourtHouse of Representatives
5. Case Tags: Constitutional Litigation;Election Law;Judicial Review;Vote-Value Disparity