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Back津田健次郎さんの声の無断模倣動画訴訟、東京地裁で判決 パブリシティー権に声も含まれると認めるも請求退ける
津田健次郎さんの声の無断模倣動画訴訟、東京地裁で判決 パブリシティー権に声も含まれると認めるも請求退ける
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時事通信1 hour agoLaw2 min readJapanView translation

津田健次郎さんの声の無断模倣動画訴訟、東京地裁で判決 パブリシティー権に声も含まれると認めるも請求退ける

Quick Look

人気声優津田健次郎さんが自身の声を生成AIで無断模倣した動画についてティックトック運営会社に削除を求めた訴訟で、東京地裁は30日、パブリシティー権の保護対象に人の声も含まれると判断したが、動画が既に削除されているとして請求を退けた。

AI-generated summary

Why It Matters

生成AIによる声の無断模倣が社会問題となる中、法務省の有識者検討会は8月に声も肖像と同様にパブリシティー権の保護対象になるとする指針を公表していた。津田健次郎さんは昨年11月に訴訟を提起していた。

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生成AI(人工知能)を使って自身の声を無断で模倣した動画が公開されたとして、人気声優の津田健次郎さんが短編動画投稿アプリTikTok(ティックトック)運営会社に対し、動画の削除を求めた訴訟の判決が30日、東京地裁であった。高橋彩裁判長は、著名人が自身の名前や肖像から生じる商業的価値を独占できる「パブリシティー権」の保護対象に人の声も含まれるとの判断を示した。

その上で、動画がすでに削除されているとして、津田さん側の請求は退けた。

声優や歌手らの声の無断模倣が問題になる中、生成AIによる声の権利侵害を巡る初の訴訟。津田さんはアニメ「呪術廻戦」の人気キャラクター役などで知られ、昨年11月に提訴していた。

訴状などによると、2024年7月~25年9月、津田さんの声質を模したナレーション付きの動画が特定のアカウントから188本投稿された。フォロワー数は約21万人に上り、動画の平均再生回数は約147万回で、「ツダケンの声がする」「声が似ている」などのコメントが相次いだ。

訴訟で原告側は、生成AIによって津田さんの特徴的な「低く渋みのある声」が意図的に作成されたと主張。パブリシティー権の侵害や、商品表示の無断使用を禁じる不正競争防止法違反に当たると訴えた。

一方、運営会社側は「投稿者は友人の声を生成AIに学習させた」などと反論。動画データはアカウントごと既に削除されたとし、「訴えの利益はない」と請求却下も求めていた。

声の権利を巡り、法務省の有識者検討会は8月、声も肖像と同様にパブリシティー権の保護対象になるとした指針を公表している。

What to Watch

AI outlook — possibilities, not facts

  • 声のパブリシティー権を巡る訴訟が今後増加する

    Likely · Within months

  • プラットフォーム側にAI生成コンテンツの自動検出・削除システムの導入が求められる

    Possible · Within months

Open Questions

  • 今後、同様のAI声模倣に対する法的規制はどのように整備されるか
  • プラットフォーム側のコンテンツモニタリング責任はどこまで及ぶか
  • 声のパブリシティー権の具体的な保護期間や範囲はどのように定められるか

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This article was originally published by 時事通信.

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