# 著作権法 / Copyright Act — 第十条 (Supplementary Provisions, Article 10) - 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: 第十条 (Supplementary Provisions, Article 10)（合著作物についての経過措置） — address `suppl-3451-48/art-10` - Text in force since: 2026-06-24 - URL (the page that opens at this provision): https://japanlaw.org/en/copyright-act/suppl-3451-48/art-10 - Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/345AC0000000048/suppl-3451-48/art-10 - 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. --- ### 第十条（合著作物についての経過措置） — (Transitional Measures for Joint Works) caption: Ministry of Justice translation — Japanese Law Translation Database System suppl-3451-48/art-10 · https://japanlaw.org/en/copyright-act/suppl-3451-48/art-10 · https://japanlaw.org/l/345AC0000000048/suppl-3451-48/art-10 **第一項** この法律の施行前に二人以上の者が共同して創作した著作物でその各人の寄与を分離して個別的に利用することができるものについては、旧法第十三条第一項及び第三項の規定は、なおその効力を有する。 suppl-3451-48/art-10/par-1 · https://japanlaw.org/en/copyright-act/suppl-3451-48/art-10/par-1 · https://japanlaw.org/l/345AC0000000048/suppl-3451-48/art-10/par-1 The provisions of Article 13, paragraphs (1) and (3) of the former Act remain in force for a work created before this Act comes into effect by two or more persons whose contributions to the work can be separated so as to allow each part of the work to be used independently. Ministry of Justice translation — Japanese Law Translation Database System **第二項** 前項の著作物は、新法第五十一条第二項又は第五十二条第一項の規定の適用については、共同著作物とみなす。 suppl-3451-48/art-10/par-2 · https://japanlaw.org/en/copyright-act/suppl-3451-48/art-10/par-2 · https://japanlaw.org/l/345AC0000000048/suppl-3451-48/art-10/par-2 With regard to the application of the provisions of Article 51, paragraph (2) and Article 52, paragraph (1) of the new Act, the work referred to in the preceding paragraph is deemed to be a joint work. Ministry of Justice translation — Japanese Law Translation Database System --- ## Cites - suppl-3451-48/art-10/par-2: 前項 → 著作権法 附則第十条第一項 (Supplementary Provisions, Article 10, paragraph (1)), suppl-3451-48/art-10/par-1 — https://japanlaw.org/en/copyright-act/suppl-3451-48/art-10/par-1 · https://japanlaw.org/l/345AC0000000048/suppl-3451-48/art-10/par-1 - suppl-3451-48/art-10/par-2: 新法第五十一条第二項 → 著作権法 第五十一条第二項 (Article 51, paragraph (2)), art-51/par-2 — https://japanlaw.org/en/copyright-act/art-51/par-2 · https://japanlaw.org/l/345AC0000000048/art-51/par-2 - suppl-3451-48/art-10/par-2: 第五十二条第一項 → 著作権法 第五十二条第一項 (Article 52, paragraph (1)), art-52/par-1 — https://japanlaw.org/en/copyright-act/art-52/par-1 · https://japanlaw.org/l/345AC0000000048/art-52/par-1 ## Cited by 2 provisions cite this one. No official source publishes this direction. - 著作権法 附則第十条第二項（合著作物についての経過措置） — https://japanlaw.org/en/copyright-act/suppl-3451-48/art-10/par-2 · https://japanlaw.org/l/345AC0000000048/suppl-3451-48/art-10/par-2 - 著作権法 附則第十五条第四項（著作隣接権についての経過措置） — https://japanlaw.org/en/copyright-act/suppl-3451-48/art-15/par-4 · https://japanlaw.org/l/345AC0000000048/suppl-3451-48/art-15/par-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 - This site's parser, version 210 — 著作権法 — structure, counts, cross-references and defined terms, computed 2026-10-19