Tomokazu Iwata


Tomokazu Iwata

Mr. Iwata has broad experience in design searches and applications, patent applications, prosecutions, inbound and outbound work, expert opinions and disputes. He is also able to provide advice from a business perspective based on his in-house experience in the intellectual property department of a large chemical manufacturing company. He advises on invention promotions, dealing with abuse of rights, devising patent countermeasures and creating patent strategies.


Patent Attorney


Japan Patent Attorneys Association (2010)

Areas of Legal Expertise

Design applications, patent and utility model applications, trials and appeals, expert opinions, and litigation

Areas of Technological Expertise

Mechanical and electrical engineering and controls

Professional Experience

2015 – present

Sonderhoff & Einsel Law & Patent Office

2011 – 2015

Mitsubishi Chemical (currently “Mitsubishi Chemical Corporation”)

2005 – 2011

TMI Associates

2003 – 2005

Tanabe Patent Office

2001 – 2003

Toppan Printing Co., Ltd.


1997 – 2001

Aoyama Gakuin University, College of Science and Engineering


Japanese, English