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Mori Hamada & Matsumoto

Work +81 3 6212 8330
Fax +81 3 6212 8230
Bangkok, Beijing, Fukuoka, Ho Chi Minh City, Osaka, Shanghai and 3 more

Yutaka Miyoshi

Work +81 5223 7749
Mori Hamada & Matsumoto


IT/Intellectual Property, Litigation/Dispute Resolution, General Corporate, Overseas Practice


Admitted to practice in 1995 (Japan), and in 2004 (New York); with Finnegan, Henderson, Farabow, Garrett & Dunner LLP, Washington DC (2003-2004); Partner of Mori Hamada & Matsumoto (2006-present); Member of Committee for Research and Study of Intellectual Property in the Context of Corporate Restructurings, Institute of Intellectual Property (2001-2002); Part-time Lecturer, Copyright Law course for the Master of Intellectual Property (MIP) program, Graduate School of Management of Science and Technology, the Tokyo University of Science (April 2007-March 2008); Part-time Lecturer at Rikkyo Law School (April 2010-March 2011); Chairman of the Legal Committee, East Asian Football Federation (2011-present); Member of Legal Committee, Asian Football Confederation (2011-present); Member of Executive Committee, Japan Football Association (June 2012-present)


Japanese and English


Tokyo Bar Association; New York State Bar Association


Keio University (LL.B., 1991), The George Washington University Law School (LL.M., Intellectual Property Law, 2003)

Japan: Intellectual property

Independent local firms

Within: Independent local firms

Headed by Yutaka Miyoshi, the team at Mori Hamada & Matsumoto focuses on IP portfolio management, domestic and cross-border IP litigation, IP-related transactions and trade mark prosecutions. Clients include leading Japanese and international companies in sectors such as pharmaceuticals and life sciences, automobiles and parts, telecoms and consumer product manufacturing. Atsushi Okada and Takuya Iizuka defended Hospira Japan in patent infringement litigation initiated by Debiopharm seeking an injunction against generic anti-cancer drugs. Former chief judge of the Intellectual Property High Court Ryuichi Shitara joined the practice as special counsel.

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Legal Developments by:
Mori Hamada & Matsumoto

Legal Developments in Japan

Legal Developments and updates from the leading lawyers in each jurisdiction. To contribute, send an email request to
  • Taking control of a Japanese publicly listed company:

    Introductory notes for successfully completing an M&A
  • Yuasa and Hara Business Law News

    Contents of the Issue Law on liability for breach of contract Review on the amendment to the cabinet office order on Corporate Disclosure

    The Minister for Justice, Alan Shatter (“the Minister”), has published the Criminal Justice Bill 2011 (“the Bill”). The main purpose of the Bill is stated to be “…to amend the criminal law to improve certain procedural matters and strengthen Garda investigative powers. The intention is that such improvements will assist in reducing the delays associated with the investigation and prosecution of complex crime, in particular white collar crime.”
  • Japan: New legislative framework for Sukuk

    The new framework passed in May 2011 will provide a solid legal platform for issuing Sukuk Ijarah under Japanese law. NAOKI ISHIKAWA highlights key legal structures and tax treatment in respect of the anticipated Sukuk issuances in Japan.
  • Yakult Bottle Acquired Distinctiveness

    Do you know about Yakult's delicious lactic acid drink which is contained in a small bottle? Yakult's lactic acid drink (hereafter referred to as "Yakult drink") is the most famous lactic acid drink in Japan and today is also being sold in many countries around the world. When you are enjoying Yakult drink, please keep in mind the case mentioned below.
  • Tax: Japan: International Joint Ventures

    Tax on international joint ventures. Country Q&A (Japan).
  • Japan: Recent Developments in Practice and Law

    The successful closing of two Islamic fi nance transactions which was announced in July 2010 by Nomura Holdings have paved a concrete path for Japanese corporations to consider overseas Islamic fi nance markets for their fund raising activities. The fi rst transaction was in Asia for the issuance of Sukuk Ijarah and the second was in the Middle East for the establishment of a Commodity Murabahah facility (Nomura Deals).
  • Renewable energy takes off in Japan

    Like many other countries, Japan has decided to reform its renewable energy (RE) policy, to dramatically increase the use of renewable energy. The core policy mechanism is a feed-in tariff (FIT). This chapter summarises the contemplated Japanese FIT and its practical impact on existing and future investment in this sector, providing an overview of:
  • Licensing - 2010

    Q & A on Licensing in Japan 
  • Law on the Civil Jurisdiction of Japanese Courts over Foreign Countries, etc.

    The Law has been enacted to clarify the scope of application of the civil jurisdiction of Japanese courts over foreign countries, etc., and set exceptions to civil preocedings involving foreign countries, etc., based on the United Nations Convention on the Jurisdictional Immunities of States and their property (UN Convention on Immunities) (see Article 1).