According to Japanese Copyright Law (June 1, 2018 grant), the work is now in the public domain in Japan because the copyrights of the works in names of organizations, in Japan expire in 50 years after the publication, or in 50 years after the creation if the works are not published within 50 years after the creation (article 53).
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{{Information |Description={{en|Assassination of Inejiro Asanuma}}{{ja|浅沼稲次郎暗殺事件}} |Source={{en|Japanese book "Album: The 25 Years of the Postwar Era" published by Asahi Shimbun Company.}}{{ja|朝日新聞社「アルバム戦後25年」