The rooftop heliport, commissioned in October 1980, was installed to provide medical services to isolated islands near Tokyo.

[2] The steel reinforced concrete building, with a floor area of 34,020 square metres (366,200 sq ft), was designed by Tokyo-based architecture firm K.ITO Architects and Engineers.

[7] Aside from employing interpreters with medical training, the hospital also publishes informational booklets, forms, and other documents in foreign languages.

It also has graphic interpretation tools for English, Chinese, Korean, Spanish, Portuguese, Thai, Russian, Vietnamese, Tagalog, and French.

[8] The internationalisation efforts were made as part of a push to improve services for non-Japanese patients at Tokyo hospitals ahead of the 2020 Olympic Games.