Solving social issues and creating new value with technology developed in university laboratories.

Since 2003, we have been conducting research on robot development in laboratories mainly at Tokyo Institute of Technology and Tokyo Medical and Dental University, and In 2014, we started Riverfield as a national university venture company.

While respecting the public nature of our business and the public interest, we are working day and night on research and development to solve social issues with the power of robots and to contribute to the creation and development of new value rooted in science and technology.


Company name RIVERFIELD Inc.
CEO Kotaro Tadano
Business Research, development and sales of medical devices such as surgical assist robots
Establishment date 20th May 2014
Capital 200,750,000 (as of January 31, 2023)
Number of employees 58 (as of July 2023)
Address NMF Aoyama 1-chome Bldg. 4th floor, 8-1-22 Akasaka, Minato City, Tokyo 107-0052
Permit・Register Type One Medical Apparatus Manufacturing and Sales Permit : 13B1X10216
Medical device manufacturing industry reg. no. : 13BZ201698
Specially Controlled Medical Device Sales and Lending Permit : 4港み生機器第183号
Medical equipment repair business license : 13BS201644

Office outline

Laboratory view


  • 4-minute walk from Tokyo Metro/Toei Oedo Line “Aoyama-itchome Station”

Organization chart

  • General meeting of shareholders

  • Board of directors

  • CEO

    • Management Department

      • Financial / Accounting Group

      • GA / HR Group

      • LA / IP Management Group​

    • Business Development Department

      • Promoter of Maintenance System Development

      • Domestic Marketing Group

      • Overseas Marketing Group

      • Business strategy Group

      • Service Group

    • Pharmaceutical Affairs Department

    • Manufacturing & Purchasing Department

    • Design Development Department

      • Mechanical design Group

      • Electrical design Group​

      • Software design Group

      • Advanced Research Office

Related Links


  • Tadano Kotaro

    Tadano Kotaro


  • Sakata Junichi

    Executive vice-president

  • Miyashita Kiyoteru

    Director / Regulatory Affairs Department Manager

  • Kanno Takahiro

    CTO / Executive Officer / Design & Development Department

  • Kita Toshikazu

    Manufacturing&Purchasing Department​ / Executive Officer

  • Watanabe Hiroshi

    Business Development Department Promoter of Maintenance System Development / Executive Officer​

  • Moritan Kohei

    Management Department / Executive Officer​