Saori Maekawa

Ms. Maekawa has a wealth of experience, which she has put to use over many years at law and patent firms where she has acted as a patent attorney specializing in trademarks and been involved with domestic and international trademark registration applications, support services for foreign trademark applications, consulting on trademark-related matters, opposition cases and appeals.

She has handled a wide variety of cases for clients ranging from startup ventures to large corporations, and always strives to understand her clients’ situation and needs and provide appropriate services.


Patent Attorney


2001 (2006 Qualified IP Litigator)


Japan Patent Attorneys Association, Japan Trademark Association (JTA) Trademark Practice Study Group, Vice-chairperson (2018-present)

Areas of Legal Expertise

Trademark applications, trials and appeals, expert opinions, litigation

Professional Experience

2019 – present

Sonderhoff & Einsel, Law and Patent Office

2015 – 2018

Mori Hamada & Matsumoto

2014 – 2015

Yamasaki & Partners

2003 – 2014

Asamura Patent Office, p.c.

2001 – 2003

Miyoshi & Miyoshi

1995 – 1998

Japan External Trade Organization (JETRO)



Graduate, Rikkyo University, Department of Law


“Section 11 IT Company Tasks and Trademarks”, (Intellectual Property and the Law: Business Models and Compliance Program Framework, Nikkan Kogyo Shimbun, Co-author: Saori Maekawa), August, 2004


”Trademark Inventory” (Japan Trademark Association (JTA)) July 10th, 2019


Japanese, English