# 著作権法 / Copyright Act — 第百二十一条 (Article 121) - Law: 著作権法 (Copyright Act), 昭和四十五年法律第四十八号 - English title "Copyright Act": Ministry of Justice translation - Kind: Act — the distinction between 法律 (Act), 政令 (Cabinet Order), 省令 (Ministerial Order) and 条例 (local ordinance) decides who may issue it and what it may say. - Provision: 第百二十一条 (Article 121) — address `art-121` - Text in force since: 2026-06-24 - URL (the page that opens at this provision): https://japanlaw.org/en/copyright-act/art-121 - Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/345AC0000000048/art-121 - Every provision below carries its address and both URLs on the line under it. - Japanese text: e-Gov 法令検索, Digital Agency (デジタル庁). English: as marked on each line below. Only the Japanese as published by the government has legal effect; the text below is a copy of it. Every English rendering below is a translation and says which kind: the Ministry of Justice's translation, or this site's machine translation, whose model and date the Sources list names. They are never merged and never substituted for one another. --- ### 第百二十一条 art-121 · https://japanlaw.org/en/copyright-act/art-121 · https://japanlaw.org/l/345AC0000000048/art-121 **第一項** 著作者でない者の実名又は周知の変名を著作者名として表示した著作物の複製物（原著作物の著作者でない者の実名又は周知の変名を原著作物の著作者名として表示した二次的著作物の複製物を含む。）を頒布した者は、一年以下の拘禁刑若しくは百万円以下の罰金に処し、又はこれを併科する。 art-121/par-1 · https://japanlaw.org/en/copyright-act/art-121/par-1 · https://japanlaw.org/l/345AC0000000048/art-121/par-1 A person that distributes copies of a work that use the true name of a person other than the author or the pseudonym by which a person other than the author is commonly known, to indicate the name of the author (including copies of derivative works that use the true name of a person other than the author of the original work or the pseudonym by which a person other than the author of the original work is commonly known, to indicate the name of the original author) is subject to imprisonment for a term of up to one year, a fine of up to one million yen, or both. machine translation, not official ## Cited by 1 provision cites this one. No official source publishes this direction. - 著作権法 第百二十四条第一項第二号 — https://japanlaw.org/en/copyright-act/art-124/par-1/item-2 · https://japanlaw.org/l/345AC0000000048/art-124/par-1/item-2 --- ## Sources - e-Gov 法令検索, Digital Agency (デジタル庁) — 著作権法 — the text in force from 2026-06-24 (https://laws.e-gov.go.jp/law/345AC0000000048/20260624_508AC0000000048), retrieved 2026-10-19 - Japanese Law Translation Database System, Ministry of Justice (法務省) — Copyright Act — Ministry of Justice translation (https://www.japaneselawtranslation.go.jp/en/laws/view/4207/tb), retrieved 2026-10-19 - claude-sonnet-5-5 — Machine translation, batch copyright-act-20261019T151240-010, translated 2026-10-20 - This site's parser, version 210 — 著作権法 — structure, counts, cross-references and defined terms, computed 2026-10-19