Hideo Nagashima


Mr. Nagashima has been engaged in the drafting of patent applications, patent prosecutions, inbound & outbound work and expert opinions for many years at various patent firms. He handles a large number of inventions using his expertise in the technological fields of automobiles (engine control, brakes, suspensions, steering, headlights etc.), industrial machinery, housing equipment, medical equipment, photo-lithography apparatus, image processing, computer graphics and gaming devices. Mr. Nagashima advises on a broad range of technology based on his experience in the R&D division of a major manufacturer of numerical control devices and robots and his in-depth knowledge of mechanical engineering and mechatronics.


Patent Attorney


Japan Patent Attorneys Association (2004)

Areas of Legal Expertise

Patent and utility model applications, trials and appeals, expert opinions

Areas of Technological Expertise

Industrial machinery, machine tools, mechatronics

Professional Experience

2015 – present

Sonderhoff & Einsel, Law and Patent Office

2003 – 2015

Primeworks IP Attorneys

2000 – 2003

Okada Fushimi Patent Firm

1997 – 2000

FANUC Corporation


2008 – 2010

Tokyo University of Science, Management of Technology, MOT

1995 – 1997

Kyoto University, Mechanical Engineering, ME

1991 – 1995

Kyoto University, Physics Engineering


Japanese, English