# 著作権法 / Copyright Act — 第十四条 (Article 14) - 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: 第十四条 (Article 14)（著作者の推定） — address `art-14` - Text in force since: 2026-06-24 - URL (the page that opens at this provision): https://japanlaw.org/en/copyright-act/art-14 - Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/345AC0000000048/art-14 - 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. --- ### 第十四条（著作者の推定） — (Presumption of Authorship) caption: Ministry of Justice translation — Japanese Law Translation Database System art-14 · https://japanlaw.org/en/copyright-act/art-14 · https://japanlaw.org/l/345AC0000000048/art-14 **第一項** 著作物の原作品に、又は著作物の公衆への提供若しくは提示の際に、その氏名若しくは名称（以下「実名」という。）又はその雅号、筆名、略称その他実名に代えて用いられるもの（以下「変名」という。）として周知のものが著作者名として通常の方法により表示されている者は、その著作物の著作者と推定する。 art-14/par-1 · https://japanlaw.org/en/copyright-act/art-14/par-1 · https://japanlaw.org/l/345AC0000000048/art-14/par-1 The person whose name or appellation (hereinafter referred to as "true name"), or whose pen name, abbreviated name, or other substitute for the person's true name by which that person is commonly known (hereinafter referred to as a "pseudonym") is indicated as the name of the author in the customary manner on the original work or at the time that the work is made available or presented to the public is presumed to be the author of that work. Ministry of Justice translation — Japanese Law Translation Database System ## Cited by 1 provision cites this one. No official source publishes this direction. - 著作権法 附則第十七条第一項（権利侵害についての経過措置） — https://japanlaw.org/en/copyright-act/suppl-3451-48/art-17/par-1 · https://japanlaw.org/l/345AC0000000048/suppl-3451-48/art-17/par-1 --- ## 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 - This site's parser, version 210 — 著作権法 — structure, counts, cross-references and defined terms, computed 2026-10-19