Medical System Network Co., Ltd.
Japanese dispensing pharmacy operator and pharmaceutical network provider headquartered in Sapporo, Hokkaido.
Last updated September 27, 2026
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Overview
Medical System Network Co., Ltd. is a Japanese company that operates dispensing pharmacies and provides pharmaceutical networks to both group and non-group entities. Founded in 1999 in Sapporo, Hokkaido, by Yasuyuki Okinaka, Inao Tajiri, and Jiro Akino, the company has grown into a nationwide pharmacy network. Its core business is the operation of dispensing pharmacies, primarily under the 'Nanohana' brand, and the provision of pharmaceutical distribution and information networks. The company aims to contribute to the improvement of quality of life (QOL) for local residents by building high-quality medical infrastructure. It is listed on the Tokyo Stock Exchange Standard Market and has a number of consolidated subsidiaries, including Hokkaido Iyaku Sogo Kenkyusho, Nanohana Hokkaido, Nanohana Tohoku, Nanohana Higashi-Nihon, Nanohana Chubu, Nanohana Nishi-Nihon, Nanohana Kyushu, Felzen Pharma, Medilog Net, Pharmashift, Paltecno, and Agrimas. The company's history includes a listing on the Osaka Securities Exchange Nasdaq Japan in 2002, a move to the Tokyo Stock Exchange Second Section in 2008, promotion to the First Section in 2010, and a transfer to the Standard Market in 2023.
History
Medical System Network Co., Ltd. was established in 1999 in Chuo-ku, Sapporo, Hokkaido, by Yasuyuki Okinaka, Inao Tajiri, and Jiro Akino as a dispensing pharmacy operator. In 2002, the company listed on the Osaka Securities Exchange's Nasdaq Japan market. In 2008, it listed on the Tokyo Stock Exchange Second Section. In 2010, it was designated to the Tokyo Stock Exchange First Section. In 2023, it moved to the Tokyo Stock Exchange Standard Market. The company has expanded its pharmacy network nationwide, operating under the 'Nanohana' brand across regions including Hokkaido, Tohoku, East Japan, Chubu, West Japan, and Kyushu. It has also diversified into related businesses through subsidiaries such as Hokkaido Iyaku Sogo Kenkyusho, Felzen Pharma, Medilog Net, Pharmashift, Paltecno, and Agrimas.
- 2023
Moved to the Tokyo Stock Exchange Standard Market.
- 2010
Designated to the Tokyo Stock Exchange First Section.
- 2008
Listed on the Tokyo Stock Exchange Second Section.
- 2002
Listed on the Osaka Securities Exchange Nasdaq Japan market.
- 1999
Founded in Chuo-ku, Sapporo, Hokkaido.
Products and positioning
Community-focused healthcare infrastructure provider aiming to improve QOL through pharmacy operations and pharmaceutical networks.
Dispensing pharmacy operations
Pharmaceutical network services
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