Hiroto Imai

Hiroto Imai


Email [email protected]​hoganlovells.com

Phone +81 3 5157 8166

Fax +81 3 5157 8210

LanguagesJapanese, English

Practice groupIntellectual Property, Media, and Technology

"...the engineering master Imai is a rarity on the domestic scene; few Japanese attorneys at law so effectively combine cross-cultural sensitivity, immense technical depth and astute legal insight."

IAM Patent 1000, 2018

Hiroto Imai is a bengoshi (Japanese qualified lawyer) and a benrishi (Japanese qualified patent attorney) in Hogan Lovells' Tokyo office. Since 1997, Hiroto has handled various patent and other intellectual property disputes/matters, including patent litigations in a variety of industry sectors, invalidation trials, face-to-face negotiations, settlements, brand protections, licensing, and IP aspects of corporate and commercial transactions. Whilst his primary focus is on IP practice, Hiroto also has extensive experience in handling corporate and commercial disputes/matters in a wide variety of areas.

Hiroto studied science at Waseda University (B.Eng. 1991) and at the Graduate School of Science and Engineering, Waseda University (1991-1992). He studied law at the Legal Training and Research Institute, the Supreme Court of Japan and at the University of Pennsylvania, (LL.M. 2002). Prior to joining Hogan Lovells, he worked at the Tokyo and London offices of a Magic Circle firm in the IP and Corporate practice groups, as well as at leading Japanese law firms.

In Japan, few attorneys have scientific or engineering backgrounds; however, Hiroto actively uses the strength and knowledge of his own scientific background in handling patent disputes/matters, etc., in various technical fields, whether they are contentious or not.

Awards and recognitions


Leading individual in Japan for Enforcement and Litigation
World Trademark Review 1000

2020 - 2023

Next Generation Partner: Bengoshi
Legal 500 Asia-Pacific

2020 - 2022

Patent Star in Japan
Managing Intellectual Property IP Stars

2018 - 2021

Leading individual for Patent Litigation in Japan
IAM Patent 1000


Leading individual for Patent Transactions in Japan
IAM Patent 1000


The Best Lawyers in Japan, Intellectual Property
Best Lawyers

Education and admissions


LL.M., University of Pennsylvania

Supreme Court Legal Training and Research Institute, 1995-1997

Graduate School of Science and Engineering, Waseda University, 1991-1992

B.Eng., Waseda University, 1991

Bar admissions and qualifications

Japan - Daiichi Tokyo Bar Association

Japan Patent Attorneys Association

Representative experience

Advising global and Japanese companies in relation to patent disputes including performing provisional dispositions, litigations, invalidation trials, face-to-face negotiations with adverse parties, and settlements

Advising global and Japanese companies regarding IP disputes including trademark, design, copyright, trade secret, Unfair Competition Prevention Law

Advising global and Japanese companies on IP related contracts, IP commercial transactions, patent/trademark infringement search reports, IP due diligence, personal data protection

Advising clients on company law, product liability law, anti-monopoly law, government regulatory laws, commercial matters, labour laws, and real property

Acting for and advising global and Japanese companies regarding various disputes in relation to commercial transactions, contracts, product liability and employment issues

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