Consumer Issues- View allLast updated: 2026-03-13

Product Liability in Japan: Claiming Damages for Defective Products

Key Takeaways

  • Under the PL Act, damages can be claimed without proving manufacturer negligence
  • Victims only need to demonstrate the defect and causal relationship
  • Claims must be filed within 3 years of discovering harm, or 10 years from manufacture
  • Always preserve photos and the defective product itself as evidence

Japan's Product Liability Act (1995) enables strict liability claims without proving manufacturer negligence (Art. 3). Three defect types (Art. 2(2)): design defects (safer alternative design existed), manufacturing defects (deviation from design), and warning/instruction defects (inadequate safety warnings). Liable parties include manufacturers, processors, importers, and OEM brand owners (Art. 2(3)). Defenses: development risk (Art. 4(1)) and component maker following assembler's design (Art. 4(2)). Time limits: 3 years from knowledge of damage, 10 years from product delivery (Art. 5). Preserve defective product as evidence.

This article provides general legal information and does not constitute legal advice. For specific legal issues, please consult with a qualified attorney.

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