Copyright Act Article 30-4 (non-enjoyment-purpose use)

著作権法第30条の4（著作物に表現された思想又は感情の享受を目的としない利用）

rights policy item·statute·active

Statutory exception central to Japanese analysis of copying works for information analysis and AI training; application remains purpose- and harm-dependent.

Recorded facts

Official site	https://laws.e-gov.go.jp/law/345AC0000000048 ↗
Geography	Japan
parties	unknown
item type	statute
identifier	Copyright Act, Article 30-4
filing date	unknown
jurisdiction	Japan
adoption date	2018-05-18
effective date	2019-01-01
canonical title	Copyright Act Article 30-4 (non-enjoyment-purpose use)
enforcement date	unknown
issuing authority	National Diet of Japan / Government of Japan
primary documents	https://laws.e-gov.go.jp/law/345AC0000000048
unresolved questions	How courts will apply mixed-purpose analysis and the unreasonable-prejudice proviso to commercial generative music training.
affected entity types	law; copyright exception
documented interpretations	Culture Agency General Understanding (2024); Culture Agency Checklist and Guidance (2024)
affected professional workflows	dataset sourcing; model training; legal review
current procedural legal status	In force; fact-specific judicial application.
amendments appeals superseding items	unknown
obligations permissions restrictions	Permits exploitation when the purpose is not enjoyment of the work's expressed ideas or emotions, within the statutory conditions; does not apply where the use would unreasonably prejudice the copyright owner's interests.
affected organizations models datasets works	AI developers; training-data assemblers; copyright owners