RIVERFIELD Inc.Not yet claimed

About RIVERFIELD Inc.

RIVERFIELD Inc. is a Tokyo-based medical robotics company that researches, develops and sells medical devices, including surgical assist robots. The official company page states it was established on 20 May 2014, lists 66 employees as of October 2025, and gives its address in Minato City, Tokyo. Its core technology is precise pneumatic control, developed over many years in laboratories at the Tokyo Institute of Technology, which the company uses to reproduce the gentleness of human hands in robotic instruments. The company states it is certified to ISO 13485:2016 for medical device quality management and works under a 'Patient First' philosophy.

Its flagship product, the Saroa Surgical System, is a pneumatically driven platform for minimally invasive surgery that estimates the force applied by its instruments and feeds that sensation back to the surgeon through the hand controllers, supported by a navigation monitor that displays force values. Saroa's listed specifications show Japanese medical device approvals and a domestic Japan sales region, with target fields including thoracic surgery, general gastrointestinal surgery, urology and gynecology. The wider range includes the EMARO and IvyA1 endoscope manipulator robots and OQrimo, an ophthalmic surgical assist robot.

Products & services

• Saroa Surgical System — A pneumatically driven, minimally invasive surgical assist robot presented as the world's first to reproduce the sense of force, giving the surgeon haptic feedback through the hand controllers; an open platform compatible with endoscopes, monitors and electrocautery equipment from various manufacturers, approved in Japan for thoracic, gastrointestinal, urology and gynecology fields.
• EMARO — An endoscope manipulator robot operated intuitively through a head sensor attached to the surgeon's head, providing a stable endoscopic field of view without blurring during long surgeries.
• IvyA1 — A compact endoscope manipulator robot, about one-third the size of conventional models, with fewer parts for lower cost and a setting function that removes the need for fixed-point positioning.
• OQrimo — An ophthalmic surgical assist robot that holds intraocular endoscopes and illumination light guides for direct observation inside the eye, acting as a third hand so the surgeon can use both hands for forceps.

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Sources & verification

• Company website — riverfieldinc.com/en (official site: profile facts, product range and markets as published). Checked 11 November 2026.
• Figures described in this profile as company-stated come from the company’s own public materials and were not independently audited by GlobleMatch.

Facts last verified: 11 November 2026. Something wrong? A listed company can request a correction or removal at any time; verified requests are actioned.

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