About Us

Message from Our President

Our Company, “Medical Data Vision (MDV)” was named to achieve the vision of improving medical and healthcare in Japan through the usage of large volume real-world data.

In recent years, expectations towards Evidence-Based Medicine (EBM) have constantly been on the rise. In order to effectively use medical and healthcare data, information and communication technologies are required. However, the medical field in Japan significantly lags behind in the field of information technologies.

MDV was established in 2003 to improve the quality of medical and healthcare in Japan through the effective usage of large volume real-world data.

Our ultimate mission is to enable individuals to track and understand their lifetime medical and healthcare data and select necessary healthcare services based on it.

We are committed to fulfilling our mission and appreciate your continuous support.

President Hiroyuki Iwasaki

Major Business Activities

Business Model

MDV’s business is built on two main pillars: “Data Network Services” and “Data Utilization Services.” To provide “Data Utilization Services,” we collect medical and health information through our “Data Network Services.”

Data Network Services

Our Data Network Services primarily provide systems to support hospital management, as hospitals are one of the key sources of medical information. At the same time, we also accumulate medical and health information with the consent and permission from hospitals or individuals. Our main systems are “EVE” and “Medical Code.”

Data Utilization Services

With the consent and permission from hospitals or individuals for the secondary use of the anonymized medical and health information accumulated through our “Data Network Services,” we provide analysis data sets related to drugs and diseases to pharmaceutical companies and research institutions. Additionally, we offer various analysis data packs to insurance companies.

Our data utilization business is rapidly expanding into various areas based on the data infrastructure formed through these business models. Initially, our focus was on improving the quality and quantity of medical big data with the consent and permission of hospitals or individuals. Moving forward, we plan to expand our business by providing a wider range of services that utilize the accumulated big data.

In our “Data Network Services,” we have extensively deployed on-premises systems such as “EVE” and “Medical Code” to meet the stringent security requirements for handling medical information on in-hospital servers. Nevertheless, the healthcare industry has seen a surge in demand for better information security literacy and the cloud migration of various medical information systems. As a result, our cloud-based services have significantly expanded. Hence, we introduced the “MDV Act.”

The advantages of using cloud-based services are the convenience to quickly add new functions or modify requirements to match the rapidly changing medical information environment. By understanding the customer’s usage status, we can propose improvements tailored to their issues and provide only the necessary services and functions.


“MDV Act” Main Story, A free analysis application with a main feature that enables all hospitals to preview hospital management indicators

This cloud-based application serves as an entry point for hospital management analysis using the existing products “EVE”*1 and “Medical Code”*2, which list necessary indicators for hospital management analysis. Even those who are not familiar with analysis can easily extract management issues and improvement points for the entire hospital (including outpatient departments and all functions of community-based care wards), and easily create briefing materials easily, without any hassle.

*1 The DPC analysis system enables the analysis of various indicators such as the difference between volume-based billing and DPC billing, patient numbers, length of stay, and medical resources by disease and case type, as well as the comparison (benchmarking) with other hospitals. By leveraging the benchmarking function, hospitals can reveal their trends and characteristics and identify their strengths and weaknesses, thereby enabling them to examine their medical policies, which form the core of hospital management.

*2 “Medical Code” is a system that utilizes standard format data, such as DPC data and health insurance claims data, to support hospital management from multiple angles, including hospital cost calculation and improvement of medical treatment unit prices. With unlimited user registration, it facilitates smooth information sharing within the hospital and promotes conscious reform and actions, leading to management improvement.

Acquisition of “1,200” hospitals using cloud services

Aim to increase the number of installations of cloud-based medical check systems and grow the order backlog


In June 2015, Medical Data Vision Co., Ltd. (MDV) launched “Karteco”, a PHR (Personal Health Record) system that enables users to independently manage their health and medical information throughout their lifetime. “Karteco” is a web-based service that supports patients and health check-up recipients to securely manage and store their medical information, including diagnosis, blood test results, prescribed medication, treatments, surgeries, examination images, and health check-up information. This information can be accessed anytime and anywhere through smartphones and other devices.

Features of “Karteco”

Capital and Business Alliance with SENSING Co., Ltd.

In October 2022, MDV entered into a capital and business alliance with SENSING Co., Ltd., (CEO: Mr. ISSEKI KIN), a Tokyo-based start-up specializing in contactless vital signs monitoring technology. The collaboration aims to integrate SENSING’s technology into “Karteco,” MDV’s PHR system.

By incorporating SENSING’s technology, “Karteco” is expected to make daily health management easier for its users. One of SENSING’s technologies, the “SENSING application,” enables users to measure their pulse rate, respiration rate, LF/HF (sympathetic nervous system activity), HF (parasympathetic nervous system activity), and TP (total power) by simply taking a 45-second video of their face with a smartphone camera.

Understanding one’s unconscious autonomic nervous system status can help in setting goals and modifying daily habits to cultivate healthy behaviors. Moreover, the measurement accuracy is reportedly 99% for pulse rate when compared to contact-type electrocardiograms and more than 90% for LF/HF and HF.

Awarded at “ASPIC IoT, AI, and Cloud Award 2022”

In addition, in November 2022, the “Karteco” team received the Innovative Business Model Award in the social industry specific ASP/SaaS category at the “ASPIC IoT, AI and Cloud Award 2022,” sponsored by the Ministry of Internal Affairs and Communications of Japan.

MDV Group Business Model

Company Profile

Company website[Japanese] MDV EBM insight[Japanese/English]
© Medical Data Vision Co., Ltd. All Rights Reserved.
© Medical Data Vision Co., Ltd. All Rights Reserved.