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Atsumi & Sakai

Work +81 3 5501 2111
Fax +81 3 5501 2211
London, Tokyo

Miho Niunoya

Work +81-(0)3-5501-1163
Atsumi & Sakai

Work Department

Corporate PG (Project/Renewable Energy), Finance PG/Finance, International PG.


Senior Partner (Private Public Partnerships (PPP), Project Finance, Renewable Energy, Construction).


Tokyo Aoyama Aoki Law Office (April 1993 – June 1996, and July 1998 – October 2002; December 2000 – October 2002 as partner) Baker & McKenzie (Jakarta) (July – December 1997) Baker & McKenzie (Singapore) (January – June 1998).


Japanese and English.


Tokyo Bar Association, Japan Association of the Law of Finance, Environmental Committee of Tokyo Bar Association, Association of Japanese Consulting Engineers.


Hitotsubashi University (LL.B., 1991); The Legal Training and Research Institute of the Supreme Court of Japan; Northwestern University School of Law (LL.M., 1997).

Japan: Projects and energy

Independent local firms

Within: Leading individuals: bengoshi

Miho Niunoya - Atsumi & Sakai

Within: Independent local firms

With substantial project finance expertise, Atsumi & Sakai’s team is jointly led by ‘incredibly helpful’ PFI expert Miho Niunoya, energy specialist Takeshi Takahashi and Yuko Nihonmatsu, who regularly handles infrastructure projects. In a recent matter, Niunoya and Shuji Koyama acted for Mitsubishi Research Institute and Yokohama City on a PFI project to build a convention centre and hotel in the city. Further mandates saw solar expert Yutaka Sakai advising Photovolt Development Partners on the development of a photovoltaic power plant in Ukujima, and Niunoya and Nihonmatsu assisting the Japan Research Institute and Maebashi City with a PPP project to build entertainment and sightseeing facilities.

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Japan: Real estate and construction

Independent local firms

Within: Leading individuals: bengoshi

Miho Niunoya - Atsumi & Sakai

Within: Independent local firms

Atsumi & Sakai’s client roster features global investment banks, real estate developers, sponsors, REITs, fund managers and government agencies, which the team advises on a wide range of issues. It is highly regarded for cross-border work and has an ‘outstanding structured finance practice’, making it a key name for international real estate finance matters and investment structuring. Practice co-head Russell Kawahara regularly handles US-Japan matters, TMK bond issuances, and advises on commercial, residential, retail, hotel and resort properties. Miho Niunoya, who leads the practice alongside Kawahara, acts on PFI/PPP and construction projects. Shuji Koyama, Eiichiro Hata and real estate finance expert Yasuhiro Shimada are also recommended.

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Legal Developments in Japan

Legal Developments and updates from the leading lawyers in each jurisdiction. To contribute, send an email request to
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