Ayuko Nemoto

Ayuko Nemoto


Ayuko Nemoto’s practice focuses on domestic and international corporate alliances (M&A, JV), venture support businesses and other corporate issues. Ms. Nemoto also has broad experience in Japanese commercial, corporate, and employment law issues and litigation, as well as regulatory issues in the pharmaceutical, healthcare, regenerative medicine and medical devices industries.


Attorney at Law


Japan (2007)


Dai-ni Tokyo Bar Association

New York State Bar Association

Observer of the International Affairs Working Group of Japan Pharmaceutical Industry Legal Affairs Association (since April 2017)

MA & Clinical Trial Working Group of Japan Pharmaceutical Industry Legal Affairs Association (since April 2018)

Supporter of Medical Innovation Support Office of Ministry of Health, Labour and Welfare (MEDISO) (since April 2018)

Ethics committee of the Council for Industrial use of Biological and Environmental Repositories (CIBER)(since July 2019)

Professional Experience

2017 – present

Sonderhoff & Einsel, Law and Patent Office

2013 – 2014

K&L Gates Seattle Office

2011 – 2017

K&L Gates Gaikokuho Joint Enterprise

2007 – 2011

Clifford Chance Law Office



Georgetown University Law Center (LL.M.)


University of Tokyo (LL.B.)


“The Contractual Provisions Needed to Deal with Brexit – From the Perspective of Japanese Companies”( (No. 1079 of NBL, August 1, 2016, Co-author: Naoki Watanabe)


“Market Trend of M&A Provisions for US Non-Public Companies” (No. 1022-24, 1026-28 of NBL, April through July 2014, Co-Author: Naoki Watanabe)


“Case Studies for Financial Instruments and Exchange Law” (2009 published by Jiyu-Kokumin-Sya)


“Artificial Intelligence and Intellectual Property in Japan: A Deep Dive into Applications, and Legal and Policy Issues” (Brand & New, Podcasts from the international trademark association) March 12, 2019


“From the Ground Up: The Latest IP Information Related to Pharmaceutical Patents such as the China/Taiwan Patent Linkage System”(Johokiko Co., Ltd) August 2018


“Workplace Harassment Comes in Many Forms: How Can You Help Your Company Prevent and Deal with Harassment in the Workplace?” (The Japan In-House Counsel Network, JICN) February 2018


“License Agreements with U.S. Companies: Provisions Which Japanese Companies Should Carefully Consider – With a Focus on Provisions Regarding Infringement and Intellectual Property under Japanese and U.S. Law.” (the Japan Pharmaceutical Industry Legal Affairs Association’s Study Group on International Issues) December 2017


“The Application of Artificial Intelligence (AI) and its IP Law Aspects in Japan” (EU-Japan Centre for Industrial Cooperation) September 2017


“A Comparison of Boilerplate Used in English Contracts – With a Focus on Japanese and New York Law” (Seminar for Japan Pharmaceutical Industry Legal Affairs Association) July 2017


“2015 Amendment to the Federal Rules of Civil Procedure” (Seminar for Japan Pharmaceutical Industry Legal Affairs Association) January 2016


“Market Trend of Foreign M&A Contractual Provisions and Point of Compromise for Agreement – Especially on US Non-Public Companies’ Acquisition Cases” (Finance Facsimile News Seminar)  September 2014


Japanese, English