MaRI Co., Ltd.

Technology × User-friendly, sleep-tech start up company

Sleep Freely. We want to solve the world's sleep problems with "non-contact technology"

- MaRI's Mission - "Solving sleep disruption factors in the most human-friendly way and solving problems caused by sleep disorders"

About MaRI

We want to solve sleep disorders gently.

Sleep apnea, which is strongly related to snoring, is a disease with poor subjective symptoms (SAS).
Because SAS could cause serious complications such as high blood pressure, its diagnosis andtreatment are required.
Currently, a highly functional and effective treatment device and method are established.
However, it is also true that it is not easy to continue treatment because the patients need to use a contact-type treatment device during sleep.

Therefore, we aim to develop a non-contact device for treating SAS. In addition, we will develop a simple screening device.

Development of sleep apnea syndrome (SAS) diagnostic device

We develop high-accuracy audio sensing technology and analysis algorithm.
The device will be able to detect SAS even in an early stage. The detection in early stages could save the medical resources.

Development of sleep apnea syndrome (SAS) treatment device

A non-contact SAS treatment device that uses our original low-frequency irradiation technology and does not physically burden the patient.
Home treatment medical device that can be remotely monitored.

Uniqueness of MaRI

We are developing a non-contact SAS treatment device that does not burden the patients.

The device resolve hypopnea and apnea without burdening the patinent.
Our R&D team members are specialists in digital signal processing.
We have the technology for non-contact detection of sleep conditions by sound analysis.
MaRI Develops Cushy and
Non-Contact Solutions for Comfortable Lives

Digital signal processing technology

Hirofumi Taki, CEO, is specialized in digital signal processing technology. When he was a university faculty, he researched medical ultrasonic imaging techniques. Applying this cutting-edge digital signal processing technology, we will strongly promote innovation.

Collaboration research

We collaborate with Kyoto University and Tohoku University.

Solution development based on needs with design thinking

Hirofumi Taki, CEO, completed the Stanford University biodesign program that promotes medical device development based on design thinking, and now provides lectures as Japan Biodesign Faculty. We are practicing on-site needs search advocated in biodesign and reliable solution development.


Hirofumi Taki

Ph.D., M.D.
Japan Biodesign Faculty
Biomedical Engineering for Health & Welfare,
Graduate School of Biomedical Engineering, Tohoku University

Jack Motoyama

Ex Management Professor, Center for Innovation & Business, Tohoku University
Ex Head of Open Innovation Center,
New Business Development Division, Hitachi Ltd.

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