Riverfield Surgical Robot Lab (JP)
Tokyo, Japan surgical robotics firm spun out of Tokyo Institute of Technology in 2014; builds pneumatic-driven robots including the EMARO endoscope holder.
RIVERFIELD Inc. is a Japanese medical robotics company, not the University of Tokyo as its listed website suggested. The company was established on May 20, 2014 as a national-university venture spun out of research conducted since 2003 at Tokyo Institute of Technology's Tadano Laboratory and at Tokyo Medical and Dental University. It is headquartered in Minato City, Tokyo, near Shinagawa Station, and reports paid-in capital of 100 million yen as of September 2024.
Riverfield builds pneumatically driven surgical robots, an approach the company says better reproduces the soft, smooth movement of a human hand than electric actuation. Its product line includes EMARO, a robotic endoscope-holder manipulator for laparoscopic surgery; IvyA1; OQrimo; and Saroa, developed with roughly 20 years of combined research including prototype evaluation and animal studies conducted with surgeons from Tokyo Medical and Dental University. The company has also developed force-sensing surgical robot technology intended to give surgeons tactile feedback during minimally invasive procedures.
As of October 2025, Riverfield employed 66 staff across mechanical design, electrical design, software development, manufacturing, quality assurance, and regulatory affairs functions supporting its medical device development.
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