Japan: Intellectual Property 2018

In this chapter, 38 top-tier individuals are recognised for their extensive expertise in the full spectrum of intellectual property law matters.

Most Highly Regarded
1. Eiji Katayama Abe Ikubo & Katayama, Tokyo
2. Seiji Ohno Ohno & Partners, Tokyo
3. Yoshio Kumakura Nakamura & Partners, Tokyo
4. Mitsuko "Mimi" Miyagawa TMI Associates, Tokyo
5. Yasufumi Shiroyama Anderson Mori & Tomotsune, Tokyo

Intellectual property specialist firm Nakamura & Partners is widely recognised for its leading practice. This year, the firm performs well with five standout lawyers nominated.
Yoshio Kumakura is a “very well respected” figure in the market who boasts “a stellar reputation” thanks to his vast knowledge of intellectual property law. He is widely regarded as a patent law expert.
Kei Iida is “a brilliant lawyer” who is enjoys a fantastic reputation in the market thanks to his expertise handling the full spectrum of intellectual property matters. He is particularly well known for his strength as a litigator.
The “exceptional” Koichi Tsujii is internationally recognised as a leading light in the field of patent law, and wins praise for his understanding of licensing agreements.
Kazuhiko Yoshida is a prominent name who stands out in our research as a seasoned intellectual property specialist. He is highly regarded by peers and clients alike, who commend him for his “enormous experience” in the field.
Kazuko Matsuo is “a very experienced practitioner” who is considered an expert on trademarks law. She also boasts a stellar reputation in the areas of copyright and design rights.

TMI Associates also stands out in our research, and sees five leading lawyers highlighted.
Mitsuko "Mimi" Miyagawa is “very impressive for trademarks work” say sources, who note that she is “very famous in this field”. She is appreciated for her “ability to think creatively to find solutions in difficult matters”.
Makoto Okada is “fantastic” according to commentators, who rate him highly for his strength handling patent infringement disputes in the technology and life sciences spaces.
The “excellent” Hiroshi Nemoto is widely regarded as a top patent litigator and impresses clients and peers alike with his strong track record handling pharmaceutical patent matters.
Satoru Nagasaka is “a very experienced practitioner” who is “rated highly” by peers. He is recommended for his strength handling intellectual property transactions. 
Toshiharu Furukawa also gains recognition here for his impressive work across the healthcare, pharmaceutical and biotechnology sectors. 

Big Four law firm Anderson Mori & Tomotsune achieves three listings in this year’s research.
The “outstanding” Yasufumi Shiroyama is a “very well-respected” figure in the market and boasts an impressive amount of experience handling patent litigation with a US component.
Miki Goto is a valued adviser who impresses with his “business-focused and practical advice”. One respondent notes: “His scientific background and education in IP make him an expert in the field of patents.”
“Excellent lawyer” Yoshikazu Iwase is a key name in the Japanese IP sphere who has more than 20 years of experience handling sophisticated patent and trademark disputes.

Eiji Katayama at Abe Ikubo & Katayama comes highly recommended by commentators, who describe him as “a top player in the market”. He is “a fantastic litigator” and handles patent disputes for companies across a range of industry sectors.

Seiji Ohno of Ohno & Partners is a “renowned” figure in the market who is “very famous in the area of patent litigation”. He particularly stands out for his excellent work in the life sciences space.

The “excellent” Ryoichi Mimura at Nagashima Ohno & Tsunematsu is an active player in the market, and is described as “a very good patent litigator” by respondents who note he has built up a strong reputation as “a very skilled and knowledgeable lawyer”.

Eiichiro Kubota at Kubota “has a very good reputation among foreign clients” who appreciate his focused approach to tackling complex mandates. Sources describe him as “an active litigator” with “superb” experience handling infringement and invalidity disputes.

Wataru Sueyoshi of STW & Partners is “a renowned litigator” who is “very well respected in the market” thanks to his impressive work handling patent disputes for high-profile clients.

Ryan Goldstein* at Quinn Emanuel Urquhart & Sullivan is “a superb lawyer” who is considered by interviewees to be a pleasure to work with. One impressed peer notes that “he is very good with clients”.

Naoki Yoshida at Finnegan Henderson Farabow Garrett & Dunner is a pre-eminent practitioner with a wealth of expertise in the field. His IP experience spans a wide range of matters, from licensing and portfolio management to litigation.

Toshiaki Iimura of Yuasa and Hara is “a very prominent IP litigator” who is “very well respected in the market”. As a former Chief Judge in the Intellectual Property High Court, he is among the most experienced practitioners in the market.

Frederick Ch'en* at Hogan Lovells Horitsu Jimusho Gaikokuho Kyodo Jigyo is “a very good lawyer” who is “very strong on inbound international work” according to market commentators. Having previously trained as a biochemist, he is particularly adept at handling multi-jurisdictional patent disputes involving pharmaceutical companies.

Hiroyuki Hagiwara at Paul Hastings is a well-established figure in this space, who boasts an impressive track record representing high-profile technology and pharmaceutical companies in an array of cross-border intellectual property disputes.

Kazuo Masui at LTE Law Offices boasts “a stellar reputation in the market” as a prominent IP litigator. He is held in high regard by peers who applaud his experience handling sophisticated IP disputes.


* foreign-qualified lawyer

Back to top

Follow us on LinkedIn

News & Features

Community News



Pro Bono

Corporate Counsel

Women in Law

Future Leaders

Research Reports

Practice Areas


The Who's Who Legal 100


Special Reports



About Us

Research Schedule

It is not possible to buy entry into any Who's Who Legal publication

Nominees have been selected based upon comprehensive, independent survey work with both general counsel and private practice lawyers worldwide. Only specialists who have met independent international research criteria are listed.

Copyright © 2019 Law Business Research Ltd. All rights reserved. | http://www.lbresearch.com

87 Lancaster Road, London, W11 1QQ, UK | Tel: +44 20 7908 1180 / Fax: +44 207 229 6910

http://www.whoswholegal.com | editorial@whoswholegal.com

Law Business Research Ltd

87 Lancaster Road, London
W11 1QQ, UK