Reiko Otani

Ms. Otani is engaged in inbound and outbound work, patent prosecutions, and the drafting of patent applications. She has handled a large number of inventions and provides expertise in technological fields such as semiconductors, circuits, information processing, and communication devices.


Patent Attorney


Japan Patent Attorneys Association (2010)

Areas of Legal Expertise

Patent and utility model applications, trials and appeals

Areas of Technological Expertise

General electrical, including semiconductors, circuits, and communication devices

Professional Experience

2012 – present

Sonderhoff & Einsel, Law and Patent Office

2006 – 2012

Sugimura International Patent & Trademark Attorneys

2005 – 2006

Lenovo Japan

2001 – 2005

IBM Japan


1997 – 2001

Keio University, Electrical Engineering


Japanese, English, German