Mr Yutaka Miyoshi > Mori Hamada & Matsumoto > Tokyo, Japan > Lawyer Profile

Mori Hamada & Matsumoto
TOKYO 100-8222

Work Department

Intellectual Property




Yutaka Miyoshi is a partner at Mori Hamada & Matsumoto (2006-present).  He focuses on patent, copyright, trademark and trade secret litigation, as well as a variety of IP-related transactions including M&A and licensing, while also engaging in many domestic and international high-profile lawsuits and technology transfers.  His practice covers a variety of industries, including drugs, bio-engineering, telecommunications, Internet-related businesses, game software, sports, and entertainment.  He also has vast experience handling cases in jurisdictions outside Japan, including the U.S. and Europe, as well as international arbitrations before ICC and JCAA.  His writing includes “Patent Litigation in Japan” (co-author, Practical Law, 2018) and “Trade Mark Litigation” (co-author, The European Lawyer Ltd., 2013).


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 Course, 2003)

Lawyer Rankings

Japan > Intellectual property: Independent local firms

(Leading individuals: Bengoshi)

Yutaka MiyoshiMori Hamada & Matsumoto

Headquartered in Tokyo with a broad international scope, Mori Hamada & Matsumoto is recognized for its comprehensive IP service and depth of experience with infringement cases involving patents, designs, trade marks, copyrights and invalidation trials. Recent expansion of the practice into China, involving local IP prosecutions and contentious matters, exemplifies the firm’s globalist outlook whilst maintaining its impressive client roster of domestic cross-sector companies. Yutaka Miyoshi, who has broad experience in complex, cross-border IP litigation, co-leads the team with Yoshifumi Onodera, who leverages his academic background in chemistry and biology to take lead on disputes requiring a high level of technical expertise. They are joined by Atsushi Okada, who handles disputes and transactions across a broad range of fields, and Tetsushi Kamimura, a specialist in disputes and copyright infringement cases in entertainment, TV broadcasting and internet-related technologies. Hideaki Kuwahara is notable for his expertise in IT-related disputes and handles IP litigation.