Tokyo District Court: Voice as Personality Symbol, but Koji Tsuda's Lawsuit Fails

Overview

The Tokyo District Court recently issued a ruling in the case brought by voice actor Kenjiro Tsuda against TikTok's operating company. Although the court dismissed his request to delete the videos, the judgment explicitly stated that a person's voice, like their portrait, is a symbol of their individual personality. This determination has sparked widespread discussion on the legal protection of voice rights.

Case Background

Kenjiro Tsuda is a renowned Japanese voice actor known for his highly distinctive voice. Recently, a user published a video on TikTok that unauthorizedly used AI technology to imitate Tsuda's voice. Tsuda's side argued that such actions seriously infringed upon his personality rights, leading them to demand the removal of the relevant videos from TikTok's operating company. After negotiations failed, they filed a lawsuit.

The core controversy of the case lies in whether the protection of "portrait rights" within traditional legal frameworks should be extended to the realm of "voice," given the rapid development of digital artificial intelligence technology. The plaintiff argued that voice is equally an important component of personal identity, and unauthorized use constitutes an infringement of their personality interests.

Court Ruling and Legal Determination

Although the Tokyo District Court ultimately dismissed the plaintiff's request to delete the videos, it provided an important determination regarding the legal nature of voice.

"A person's voice, like a portrait, is a symbol of their individual personality."

This statement is considered the key legal guidance in this case. The court acknowledged that voice carries personal personality interests, but did not support the plaintiff's specific litigation requests under the circumstances of the case. This ruling reflects the complexity of balancing individual cases in judicial practice, namely finding a balance between protecting individual rights and maintaining the online content ecosystem.

Social Impact and Industry Warning

This ruling has triggered fervent reactions in Japan's entertainment and legal circles. Many practitioners are concerned that if reliance is placed solely on the theory of "symbol of personality" without specific injunction support, future similar voice infringement cases will struggle to obtain effective relief.

With the popularization of AI-generated content (AIGC) technology, the cost of voice impersonation has dropped significantly, and potential infringement risks have increased substantially. Industry insiders are calling on legislative bodies to promptly improve relevant laws and regulations, clarify the scope of protection for voice rights and liability for infringement, provide stronger legal safeguards for creators, and prevent irreversible damage to individual rights caused by the abuse of technology.