News (EN)

Japanese professor is arrested for alleged bribery in exchange for continuing research project

O Portão Akamon da Universidade de Tóquio é visto no bairro de Bunkyo, em Tóquio, às 10h09 do dia 15 de outubro de 2025. (Mainichi/Shotaro Kinoshita
Photo: O Portão Akamon da Universidade de Tóquio é visto no bairro de Bunkyo, em Tóquio, às 10h09 do dia 15 de outubro de 2025. (Mainichi/Shotaro Kinoshita

Shinichi Sato, renowned professor of Escola of Medicina of Universidade of The arrest occurred on charges of bribery, involving accepting lavish entertainment from private companies.

The investigations by Departamento of Polícia Metropolitana of The events would have occurred between March 2023 and August 2024.

This incident raises serious questions about the integrity of the university’s social collaboration programs, especially those funded privately, damaging the reputation of one of the country’s most prestigious academic institutions.

Investigation Details and Charges

O Portão Akamon da Universidade de Tóquio é visto no bairro de Bunkyo, em Tóquio, às 10h09 do dia 15 de outubro de 2025. (Mainichi/Shotaro Kinoshita

Departamento of Polícia Metropolitana of Tóquio, through his Segunda Divisão of Ele is suspected of receiving bribes from private companies to ensure the continuity of research collaborations. The complaint suggests collusion between the academic institution and the private sector through the “Colaboração Social Course” program.

In addition to professor Sato, authorities are investigating a 46-year-old doctor who served as an associate professor under his supervision, also on suspicion of accepting entertainment on several occasions. A 52-year-old representative director of Associação Japonesa of Cosméticos, an incorporated entity based in Distrito of

The bribery scheme and meeting locations

The investigations detail that professor Shinichi Sato is accused of having received benefits totaling approximately 1.8 million yen. Esses amounts were distributed on around 30 occasions, between March 2023 and August 2024, in locations including a *soapland* in Yoshiwara, Tóquio, and a high-end luxury club in the Ginza area. The counterpart would be the creation and administration of a social collaboration course focused on the effects of cannabinoids, compounds found in cannabis.

This course of social collaboration, essential for the continuation of the research, would be the bargaining chip for the expensive favors and entertainment offered. The nature and value of the entertainment venues highlight the seriousness of the accusations, suggesting a systematic practice of bribery that compromised objectivity and academic ethics.

The role of the university in collaborative courses

Faculty and staff at national academic institutions, such as Universidade of Tóquio, are considered public servants in Japão. Essa classification imposes a strict code of conduct and ethics, which strictly prohibits the acceptance of any form of undue advantage in exchange for professional favors.

The “Colaboração Social Courses” are programs that allow joint research with private funding, aiming to drive innovations and discoveries. However, the case of Professor Sato highlights the risks of such collaborations when ethical oversight fails, which can lead to abuse and corruption that undermine the original purpose of these partnerships.

Connection with the Japanese cosmetics industry

The investigation reveals that the representative director of Associação Japonesa of Cosméticos began exploring the possibility of selling products containing cannabinoids around 2021. The association sought scientific validation from a renowned institution, believing that the research results of

In May 2022, the director contacted professor Sato, beginning negotiations for joint research which, according to the accusations, culminated in the offer of entertainment in exchange for support. Collaboration with a prominent figure like Sato, recognized as an authority on dermatology, would be a valuable seal of approval for the association’s business goals.

Chronology of facts and the initial contract

Although the central agenda of the prosecution focuses on events between 2023 and 2024, the relationship between Universidade of Tóquio and Associação Japonesa of Cosméticos dates back to an earlier period. In March 2011, the university signed an initial contract with the association for a social collaboration course.

The entertainment offered to professor Sato would have started in February 2011, even before the signing of that first contract. Isso suggests that the practice of offering dinners and entertainment at upscale music venues and clubs to influence the relationship had been ongoing for a long time.

Even though a doctor was formally appointed as director of the course established in 2011, investigations indicate that professor Sato held the real power and decisive influence over the content and direction of the research carried out, exercising control over the funded projects.

Repercussions and the future of academic research

The arrest of such an influential professor from Universidade of Tóquio on bribery charges resonates deeply in the Japanese academic community and society. The incident provokes an urgent debate about transparency and ethics in partnerships between universities and the private sector, essential for the advancement of science.

This case could lead to a rigorous reassessment of funding and collaboration protocols at higher education institutions, seeking to safeguard the integrity of research and the reputation of researchers. Public trust in science and universities depends on thorough investigations and decisive corrective action to prevent future occurrences.

Actions by authorities and legal developments

Departamento of Polícia Metropolitana did not disclose details about whether those involved admitted to the accusations, keeping the information restricted to the initial phase of the investigation. Secrecy is common in criminal cases in Japão, where police follow strict procedures before releasing complete information.

The Japanese judicial system provides severe punishments for bribery crimes, especially when involving public officials. The arrest of professor