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Tokyo court rules human voice can be protected under publicity rights in Japan's first AI voice clone case

Tokyo court rules human voice can be protected under publicity rights in Japan's first AI voice clone case

Rule Changes

Landmark ruling now backed by union guidelines and a ministry move to add voice to unfair competition law

October 18th, 2026: METI considers adding voice, portrait to unfair competition law

Overview

Updated Oct 18

On September 30, 2026, the Tokyo District Court ruled that a person's voice can be protected under publicity rights, Japan's first such finding. The ruling came in voice actor Kenjiro Tsuda's suit over TikTok videos narrated with an AI imitation of his voice; the court dismissed his removal request because the poster had already deleted the account.

On October 15, the Japan Actors Union published its first guidelines for AI voice use, requiring consent for training, generation, and public use, and pay for generated voices. The same week, METI began considering adding voice and portrait to the Unfair Competition Prevention Act. Both moves build on the September 30 ruling, giving Japanese performers a clearer legal path against AI voice cloning.

Why it matters

Japan's performers now have a legal foundation to demand damages or takedowns when AI clones their voices without consent.

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Key Indicators

1.47M
Average views per video
Average across the 188 videos on the infringing account.
210,000+
Followers on the infringing TikTok account
The account posted between July 2024 and September 2025.
¥500K-750K
Estimated monthly earnings of the infringing account
Roughly $3,200-4,800 a month from TikTok's view-based creator payouts.
188
Videos posted with the AI imitation voice
Posted between July 2024 and September 2025; the account ran about 210,000 followers.

Voices

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People Involved

Kenjiro Tsuda
Kenjiro Tsuda
Voice actor and plaintiff
Won the legal principle; removal request dismissed; not appealing
AT
Aya Takahashi
Presiding judge, Tokyo District Court
Issued the ruling
TH
Takashi Hirano
Tsuda's attorney
Indicated no appeal will be filed

Organizations Involved

Tokyo District Court
Tokyo District Court
Judicial body
Delivered the landmark ruling

Japan's primary district court, which issued the first ruling that voice falls under publicity rights protection.
TikTok
TikTok
Social media platform
Defendant; stated it will continue balancing tech advancement with rights protection

Video-sharing platform whose operator was sued by Tsuda over AI-voice imitation videos.
Japan Ministry of Justice
Japan Ministry of Justice
Government ministry
Published guidelines on voice protection in August 2026

Government body whose expert committee determined voices should fall under publicity rights.
JA
Japan Actors Union (Nihon Haiyu Rengō)
Trade union
Published first AI voice guidelines on October 15

The cooperative union of Japanese voice actors and actors.
Ministry of Economy, Trade and Industry (METI)
Ministry of Economy, Trade and Industry (METI)
Government ministry
Considering adding voice and portrait to the Unfair Competition Prevention Act

Japan's trade ministry, now weighing voice protection under unfair competition law.

Timeline

July 2024 October 2026

9 events Latest: October 18th, 2026 · 3 weeks ago
Tap a bar to jump to that date

  1. METI considers adding voice, portrait to unfair competition law

    Latest Policy

    The Ministry of Economy, Trade and Industry began studying whether to list voice and portrait as protected targets under the Unfair Competition Prevention Act, responding to unauthorized AI use of celebrities' voices.

  2. Japan Actors Union issues first AI voice guidelines

    Policy

    The union required consent for AI learning, generation, and public use of a voice, treated generated voices as new performances requiring separate payment, and demanded permission from bereaved families before using deceased performers' voices.

  3. Actors union praises Tsuda ruling

    Legal

    The Japan Actors Union issued a statement thanking Kenjiro Tsuda and noting that the court's recognition of voice under publicity rights was a major achievement, even though his removal request was dismissed.

  4. Tokyo District Court issues landmark ruling

    Legal

    Court rules voice falls under publicity rights; dismisses Tsuda's removal request as moot.

  5. Justice Ministry publishes voice protection guidelines

    Policy

    Final report establishes that individuals can demand compensation for confirmed voice infringement.

  6. Justice Ministry committee approves voice protection report

    Policy

    Expert committee finds voices should fall under the right of publicity.

  7. Anonymous poster deletes account

    Legal

    The anonymous poster deleted the account at the end of May 2026, while the case was still being heard; some reports date the deletion to June. TikTok was left with no content to take down.

  8. Tsuda files suit against TikTok

    Legal

    Tsuda files at Tokyo District Court, citing publicity rights and the Unfair Competition Prevention Act.

  9. AI voice imitation videos begin appearing

    Incident

    Anonymous TikTok account begins posting 188 videos with narration resembling Tsuda's voice.

Scenarios

1

Voice actors file damages suits against AI voice clone creators

Likely Resolves by End of 2027

Discussed by: Meiji University IP law professor Toshiya Kaneko

The ruling's principle that voice falls under publicity rights enables performers to seek damages and injunctions against unauthorized AI voice use. Voice actors who have campaign groups like 'No More' could pursue individual cases using the court's reasoning, guided by the Justice Ministry's August 2026 guidelines. Success in damages suits would deter platforms and content creators from using AI voice clones of celebrities and performers.

2

Japan enacts explicit voice protection legislation

Possible Resolves by Q2 2028

Discussed by: Japan Justice Ministry study group

The ruling and ministry guidelines create pressure for actual legislation. The Justice Ministry's study group concluded in August 2026 that a 'right to one's voice' should receive legal protection. If the ruling's principle embeds into the political conversation, the Diet could pass a statute explicitly recognizing voice protection. This would move from judge-made law to statutory law.

3

TikTok and platforms face ongoing takedown requests from performers

Likely Resolves by Q2 2027

Discussed by: TikTok operating company statement

The company said it would find a balanced approach between technological advancement and rights protection. The ruling, combined with ministry guidelines, gives performers a legal basis to demand takedowns while content still exists. Platforms like TikTok could face a wave of removal requests from voice actors whose voices are used in AI-generated content, with courts now holding that deliberate refusal to remove infringing AI voice content could constitute a publicity rights violation.

4

METI amends unfair competition law to protect voice and portrait

Likely

Discussed by: METI (announced October 18)

METI is considering a formal amendment to the Unfair Competition Prevention Act that would explicitly list voice and portrait as protected targets. This would give performers a statutory route to demand takedowns and damages, independent of the judge-made publicity rights doctrine.

Historical Context

2 moments from history that rhyme with this story — and how they unfolded.

February 2012

Japan Supreme Court recognizes publicity rights (2012)

Japan's Supreme Court first recognized the right of publicity as a legally protected right. The case involved a photographer whose images of a celebrity were used in an unauthorized publication.

Then

The court established a framework where celebrities could protect against unauthorized commercial use of their name and likeness.

Now

Created the judge-made doctrine that subsequent voice protection builds upon, with the 2026 ruling extending the same reasoning to voice.

Why this matters now

The 2026 ruling explicitly extends the 2012 Supreme Court precedent's reasoning from physical appearance to a person's voice.

2025-2026

Voice actors' 'No More' campaign against AI voice cloning (2025)

Japanese voice actors launched a campaign called 'No More' against using generative AI to mimic performers without permission, raising awareness of AI voice cloning's threat to their livelihoods.

Then

The campaign raised public awareness and created organizing infrastructure for affected performers.

Now

Pressured policy bodies and courts to address AI voice cloning, culminating in the 2026 ministry guidelines and court ruling.

Why this matters now

The voice actor community's mobilization created momentum that led to both the Ministry guidelines and this litigation.

Sources

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