
News
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2025.04.07
The launch of the 'AT Barrier 150' was featured by the Japan Nuclear Shelter Association. -
2025.04.03
Press Release: Launch of “AT Barrier 150” Ventilation System for Shelters – Available from April 1 -
2024.11.22
AT Barrier" has been installed in the Japan Nuclear Shelter Association. -
2024.09.25
Selected for the FY2024 Research and Development Support Project for Growth-Oriented SMEs (Go-Tech Project) -
2024.08.27
First in Japan. Press release on AT Barrier, a domestically produced ventilation system for underground shelters.
Ventilation System for CBRNE-Resistant Underground Shelters
*Note: CBRNE refers to threats from Chemical, Biological, Radiological, Nuclear, and Explosive sources.
To feel relieved
The Product is Made in Japan.
We produce well-designed shelters.
Japan frequently experiences natural disasters such as earthquakes and tsunamis. Underground shelters are highly effective in protecting lives from these threats and serving as storage spaces for emergency supplies. However, their adoption rate remains low compared to countries like Switzerland and Israel, highlighting the need for further safety measures.
In particular, ventilation systems are essential for maintaining health during evacuation, as they provide fresh air and enable long-term sheltering. We are committed to offering high-quality, affordable ventilation systems to help establish safe evacuation environments.
By raising public awareness of disaster preparedness and promoting the construction of underground shelters and infrastructure, we can work together to build a safer future.
Masaki Oguma


Service
Ventilation System
One of the most crucial elements in constructing underground shelters is the ventilation system. Currently, there are no domestically manufactured ventilation systems available, forcing reliance on expensive foreign products. We will manufacture and sell safe, high-quality ventilation systems domestically.
Underground Shelter Construction
Based on the standards set by the Japan Nuclear Shelter Association, we will construct underground shelters that are safe, secure, and designed with unconventional aesthetics. We aim to promote their widespread adoption throughout Japan.
Development and Sale of Disaster Prevention Products
Preparation is essential for times of emergency.
To protect people's safety, we provide reliable disaster prevention supplies.
company
03
Manufacturing of Ventilation Systems
1-12, Nishi 23-chome, Kita 6-jo, Chuo-ku, Sapporo-shi, Hokkaido
011-624-7023Sales of Underground Shelter Ventilation Systems
Design and Sales of Underground Shelters
YABUSHITA GROUP


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