TXP Medical Co. Ltd

TXP Medical Co. Ltd is a Japanese healthcare technology company headquartered in Chiyoda City, Tokyo. It develops software platforms that digitize, centralize and connect clinical data in emergency, critical care and acute-care settings, with the stated mission of "saving lives with medical data." The company was founded in August 2017 by Dr. Tomohiro Sonoo, a physician trained in emergency and intensive care medicine, who commercialized NEXT Stage ER, a system he had developed himself. The company's core proposition is that medical data in Japan is fragmented across individual hospitals and electronic medical record systems, creating duplicated examinations, repeated questioning of patients, long waiting times and an inability to evaluate outcomes. TXP Medical addresses this by moving acute-care documentation and patient information into cloud-based, interoperable platforms. Its product family includes NEXT Stage ER, an integrated platform for documentation support and research support used at life-saving center-class hospitals; a platform for recording inside doctor cars and helicopters with registry linkage; NEXT Stage ICU, an ICU patient information dashboard branded as "NEXT Stage ICU"; a transfer and referral communication tool that reduces telephone-based information transfer; NEXT Stage Document Assistant, which uses generative AI to draft discharge summaries and clinical referral documents from electronic medical record data; and NSER mobile, a voice-input and OCR charting application with generative AI. TXP Medical sells primarily to hospitals and municipalities in Japan. Its emergency DX (digital transformation) deployments include work with Yamagata City on regional emergency coordination and with Shizuoka City, where NSER mobile was scheduled to begin operation in October and was demonstrated to children at the Shizuoka "Emergency Fair 2026." The company also engages in public dialogue on medical data governance and AI, including a discussion series featuring outside experts. Leadership is closely tied to its clinical origins. Dr. Sonoo, born in Tokyo in 1985 and a 2010 graduate of the University of Tokyo Faculty of Medicine, worked in emergency and intensive care at Tokyo Teishin Hospital, the University of Tokyo Hospital and Hitachi General Hospital. He is a board-certified emergency physician of the Japanese Association for Acute Medicine and holds an ECFMG certificate, and has served as a visiting associate professor at Tokyo Medical and Dental University. He founded TXP Medical in August 2017 around NEXT Stage ER. The company positions itself not as an AI-first vendor but as a builder of practical, field-friendly data infrastructure: it argues that the immediate need is for recording systems as easy to use as paper with less double entry, and reliable clinical data that can be cross-referenced between neighboring institutions, with AI and data-driven quality evaluation and policy-making built on top of that foundation. TXP Medical remains a privately held company.

TXP Medical Co. Ltd was founded in August 2017 by Dr. Tomohiro Sonoo, an emergency and intensive care physician, to commercialize NEXT Stage ER, a system he had developed himself. The company's origin lies in Sonoo's clinical experience at the front lines of emergency departments and intensive care units in Japan. He observed that although Japan has a high-level universal health insurance system, it rests on an enormous volume of documentation work by medical staff, producing exhausted clinicians and patients frustrated by long waits and staff staring at computers. He also noted that despite this documentation burden, basic data — such as what medications a patient was prescribed at a nearby institution, or what the most common symptoms and diagnoses at a hospital were — was often unavailable. From this starting point, TXP Medical built its business around acute-care data systems and medical data-related services. Its flagship NEXT Stage ER became an integrated platform for charting support and research support, and the company states it holds an overwhelming share among life-saving center-class hospitals. The product line expanded to cover recording inside doctor cars and helicopters with registry linkage, an ICU patient information dashboard under the NEXT Stage ICU banner, a transfer and referral communication tool that reduces telephone-based information transfer, NEXT Stage Document Assistant for generative-AI drafting of discharge summaries and clinical referral documents from electronic medical record data, and NSER mobile, a generative-AI-equipped voice-input and OCR charting application. The company frames its work around two data concepts. "Connected data" refers to linking medical data that is currently isolated and fragmented in each hospital's electronic medical record system, enabling smoother information exchange between hospitals and allowing patients to retain their own data. "Community data" refers to the raw clinical data that can be gathered from emergency settings, which accept sudden medical events from society and where almost all patients are first-time visits; such data is seen as a reliable reflection of the real state of society and medicine, useful for research, clinical trials, insurance and health administration. TXP Medical sells to hospitals and municipalities and has pursued emergency DX deployments across Japan. Publicized examples include work in Yamagata City on regional emergency coordination and in Shizuoka City, where NSER mobile was scheduled to begin operation in October and was demonstrated to children at the Shizuoka "Emergency Fair 2026." The company also participates in public discussion of medical data governance and AI, including a dialogue series with outside experts such as Hiroki Habuki. Its representative, Dr. Sonoo, remains active in professional forums, speaking at events such as the 50th Ibaraki Prefecture Emergency Medicine Association Symposium. TXP Medical is headquartered in Chiyoda City, Tokyo, and remains privately held.

• 2026

  NSER mobile demonstrated at Shizuoka City "Emergency Fair 2026"; operation in Shizuoka City scheduled to begin in October.

• 2026

  Representative Director Dr. Tomohiro Sonoo speaks at the 50th Ibaraki Prefecture Emergency Medicine Association Symposium.

• 2026

  Company publishes news on emergency DX practice in Yamagata City covering regional coordination.

• 2017

  Dr. Tomohiro Sonoo founds TXP Medical, commercializing the NEXT Stage ER system he developed.

Field-first medical data infrastructure for emergency and critical care, connecting fragmented clinical data across hospitals and municipalities rather than pursuing AI for its own sake.

• NEXT Stage ER

  Integrated platform combining charting/documentation support and research support, described as holding an overwhelming share among life-saving center-class hospitals.

• Doctor car / helicopter recording platform

  Platform unifying recording input inside doctor cars and helicopters with registry linkage.

• NEXT Stage ICU

  Platform centered on an ICU patient information dashboard, supporting both ICU operational efficiency and research needs.

• Transfer/referral communication platform

  Tool for smoother inter-hospital transfers that greatly reduces the frequency of telephone-based information transfer and conveys clinical information quickly and accurately.

• NEXT Stage Document Assistant

  Business support system in which generative AI automatically creates discharge summaries, clinical referral documents and other medical documents based on electronic medical record information.

• NSER mobile

  Generative-AI-equipped voice-input/OCR charting application for emergency medical care.

1. 1TXP Medical株式会社｜医療データで命を救う。txpmedical.jp
2. 2会社情報｜TXP Medical株式会社｜医療データで命を救う。txpmedical.jp
3. 3TXP Medical Co. Ltd (Japan) - Wikidatawikidata.org