Ryo Takamatsu

Ryo Takamatsu has broad experience in the pharmaceutical and healthcare industry, and specializes in license negotiations and various regulatory compliance matters which arise from the development, manufacturing, sales, supply, and promotion of pharmaceuticals and medical devices. In particular, Ryo advises on regulatory matters involving the Act on Securing Quality, Efficacy and Safety of Products Including Pharmaceuticals and Medical Devices, data regulations, and antimonopoly issues. He also has extensive experience in labor issues (mainly representing employers), handling defamation claims on the Internet, and corporate legal and commercial transactions in Japan and overseas.


Attorney at Law


Japan (2015)


Dai-ni Tokyo Bar Association

Observer of the International Affairs Working Group, Japan Pharmaceutical Industry Legal Affairs Association

Dai-ni Tokyo Bar Association Committee for Labor Issues

Dai-ni Tokyo Bar Association Committee for Intellectual Property Rights

LESJ (Licensing Executives Society Japan)

Professional Experience

2017 – present

Sonderhoff & Einsel, Law and Patent Office

2019.9 – 2020.12

Secondee at domestic pharmaceutical company

2015 – 2017

Nozomi Sogo Law Office



University of Tokyo Law School (J.D.)


University of Tokyo (LL.B.)


“Director’s Responsibility of a Corporate Group Based on Precedents” (2017), joint authorship, published by CHUOKEIZAI-SHA Co., Ltd.


“How to Deal with Defamation on the Internet” (2017), joint authorship, Japan Business Law Journal as of February 2017, published by CHUOKEIZAI-SHA Co., Ltd.


“Important Points for Legal and Compliance Practice in Utilizing Healthcare Data” (November 5, 2020), a presentation organized by Seminar Info Co., Ltd.


“Basics of Laws and Regulations for Utilizing Healthcare Data and Key Points for Compliance with Laws and Regulations” (October 21, 2020), a presentation organized by the R&D Support Center Co., Ltd.


“Recent US Judicial Precedents regarding Commercially Reasonable Effort and Points to Remember When Drafting a Contract in Light of COVID-19” (July 16, 2020), a presentation at the Japan Pharmaceutical Industry Legal Affairs Association’s Study Group on International Issues


The 2019 Amendment of the Pharmaceuticals and Medical Devices Law and its Impact on Manufacturing Medical Devices” (July 25, 2019), a presentation at the Legal & Compliance Committee of the American Medical Devices and Diagnostics Manufacturers’ Association (AMDD)


“The 2017 Amendment of the Civil Code and its Impact on Insurance Agents” (August 21, 2017), a presentation organized by the Seminar Info Co., Ltd.


Japanese, English