# 著作権法 / Copyright Act — 第二十条 (Article 20) - 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: 第二十条 (Article 20)（同一性保持権） — address `art-20` - Text in force since: 2026-06-24 - URL (the page that opens at this provision): https://japanlaw.org/en/copyright-act/art-20 - Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/345AC0000000048/art-20 - 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. --- ### 第二十条（同一性保持権） — (Right to Integrity) caption: Ministry of Justice translation — Japanese Law Translation Database System art-20 · https://japanlaw.org/en/copyright-act/art-20 · https://japanlaw.org/l/345AC0000000048/art-20 **第一項** 著作者は、その著作物及びその題号の同一性を保持する権利を有し、その意に反してこれらの変更、切除その他の改変を受けないものとする。 art-20/par-1 · https://japanlaw.org/en/copyright-act/art-20/par-1 · https://japanlaw.org/l/345AC0000000048/art-20/par-1 The author of a work has the right to preserve the integrity of that work and its title, and is not to be made to suffer any alteration, cut, or other modification thereto that is contrary to the author's intention. Ministry of Justice translation — Japanese Law Translation Database System **第二項** 前項の規定は、次の各号のいずれかに該当する改変については、適用しない。 art-20/par-2 · https://japanlaw.org/en/copyright-act/art-20/par-2 · https://japanlaw.org/l/345AC0000000048/art-20/par-2 The provisions of the preceding paragraph do not apply to the following modifications: Ministry of Justice translation — Japanese Law Translation Database System **一** 第三十三条第一項（同条第四項において準用する場合を含む。）、第三十三条の二第一項、第三十三条の三第一項又は第三十四条第一項の規定により著作物を利用する場合における用字又は用語の変更その他の改変で、学校教育の目的上やむを得ないと認められるもの art-20/par-2/item-1 · https://japanlaw.org/en/copyright-act/art-20/par-2/item-1 · https://japanlaw.org/l/345AC0000000048/art-20/par-2/item-1 the alteration of a written character or word, or any other modification made to a work when it is exploited pursuant to the provisions of Article 33, paragraph (1) (including when these apply mutatis mutandis pursuant to paragraph (4) of that Article), Article 33-2, paragraph (1), Article 33-3, paragraph (1), or Article 34, paragraph (1), which is found to be unavoidable for the purpose of school education; machine translation, not official **二** 建築物の増築、改築、修繕又は模様替えによる改変 art-20/par-2/item-2 · https://japanlaw.org/en/copyright-act/art-20/par-2/item-2 · https://japanlaw.org/l/345AC0000000048/art-20/par-2/item-2 the modification of an architectural work by means of extension, rebuilding, repair, or remodeling; Ministry of Justice translation — Japanese Law Translation Database System **三** 特定の電子計算機においては実行し得ないプログラムの著作物を当該電子計算機において実行し得るようにするため、又はプログラムの著作物を電子計算機においてより効果的に実行し得るようにするために必要な改変 art-20/par-2/item-3 · https://japanlaw.org/en/copyright-act/art-20/par-2/item-3 · https://japanlaw.org/l/345AC0000000048/art-20/par-2/item-3 the necessary modifications to make it so that a work of computer programming that otherwise cannot be executed on a particular computer can be executed on that computer, or to make it so that a work of computer programming can be executed more effectively on a computer; Ministry of Justice translation — Japanese Law Translation Database System **四** 前三号に掲げるもののほか、著作物の性質並びにその利用の目的及び態様に照らしやむを得ないと認められる改変 art-20/par-2/item-4 · https://japanlaw.org/en/copyright-act/art-20/par-2/item-4 · https://japanlaw.org/l/345AC0000000048/art-20/par-2/item-4 a modification other than as set forth in the preceding three items, which is found to be unavoidable in light of the nature of the work and the purpose and circumstances of its exploitation. Ministry of Justice translation — Japanese Law Translation Database System --- ## Cites - art-20/par-2: 前項 → 著作権法 第二十条第一項 (Article 20, paragraph (1)), art-20/par-1 — https://japanlaw.org/en/copyright-act/art-20/par-1 · https://japanlaw.org/l/345AC0000000048/art-20/par-1 - art-20/par-2/item-1: 第三十三条第一項 → 著作権法 第三十三条第一項 (Article 33, paragraph (1)), art-33/par-1 — https://japanlaw.org/en/copyright-act/art-33/par-1 · https://japanlaw.org/l/345AC0000000048/art-33/par-1 - art-20/par-2/item-1: 同条第四項 → 著作権法 第三十三条第四項 (Article 33, paragraph (4)), art-33/par-4 — https://japanlaw.org/en/copyright-act/art-33/par-4 · https://japanlaw.org/l/345AC0000000048/art-33/par-4 - art-20/par-2/item-1: 第三十三条の二第一項 → 著作権法 第三十三条の二第一項 (Article 33-2, paragraph (1)), art-33-2/par-1 — https://japanlaw.org/en/copyright-act/art-33-2/par-1 · https://japanlaw.org/l/345AC0000000048/art-33-2/par-1 - art-20/par-2/item-1: 第三十三条の三第一項 → 著作権法 第三十三条の三第一項 (Article 33-3, paragraph (1)), art-33-3/par-1 — https://japanlaw.org/en/copyright-act/art-33-3/par-1 · https://japanlaw.org/l/345AC0000000048/art-33-3/par-1 - art-20/par-2/item-1: 第三十四条第一項 → 著作権法 第三十四条第一項 (Article 34, paragraph (1)), art-34/par-1 — https://japanlaw.org/en/copyright-act/art-34/par-1 · https://japanlaw.org/l/345AC0000000048/art-34/par-1 - art-20/par-2/item-4: 前三号 → 著作権法 第二十条第二項第一号 (Article 20, paragraph (2), item (i)), art-20/par-2/item-1 — https://japanlaw.org/en/copyright-act/art-20/par-2/item-1 · https://japanlaw.org/l/345AC0000000048/art-20/par-2/item-1 - art-20/par-2/item-4: 前三号 → 著作権法 第二十条第二項第二号 (Article 20, paragraph (2), item (ii)), art-20/par-2/item-2 — https://japanlaw.org/en/copyright-act/art-20/par-2/item-2 · https://japanlaw.org/l/345AC0000000048/art-20/par-2/item-2 - art-20/par-2/item-4: 前三号 → 著作権法 第二十条第二項第三号 (Article 20, paragraph (2), item (iii)), art-20/par-2/item-3 — https://japanlaw.org/en/copyright-act/art-20/par-2/item-3 · https://japanlaw.org/l/345AC0000000048/art-20/par-2/item-3 ## Cited by 3 provisions cite this one. No official source publishes this direction. - 著作権法 第十七条第一項（著作者の権利） — https://japanlaw.org/en/copyright-act/art-17/par-1 · https://japanlaw.org/l/345AC0000000048/art-17/par-1 - 著作権法 第二十条第二項（同一性保持権） — https://japanlaw.org/en/copyright-act/art-20/par-2 · https://japanlaw.org/l/345AC0000000048/art-20/par-2 - 著作権法 第二十条第二項第四号（同一性保持権） — https://japanlaw.org/en/copyright-act/art-20/par-2/item-4 · https://japanlaw.org/l/345AC0000000048/art-20/par-2/item-4 --- ## 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-20261019T151240-001, 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