Fumihide Takeuchi

Fumihide Takeuchi

Mr. Takeuchi is involved in drafting patent applications, patent prosecutions, a variety of outbound and inbound work, opposition procedure as well as expert opinions. He handles a large number of inventions involving the fields of general chemistry such as organic chemistry, (high) polymer chemistry, inorganic chemicals, environmental chemicals, and computational chemistry. Utilizing his experience in the R&D department of a chemical industry company where he was involved in the research and development of synthetic organic solvents, he advises on patent issues from both a corporate and researcher’s perspective.


Patent Attorney


Japan Patent Attorneys Association (2013)

Qualified IP Litigator in Japan (2018)


Japan Patent Attorneys Association
Association of Intellectual Property Education

Areas of legal expertise

Patent and utility model applications, trials and appeals, expert opinions, filling opposition to the grant of patent and litigation

Areas of technological expertise

General chemistry, plants, various detection devices, and display devices

Professional Experience

2018 – present

Sonderhoff & Einsel, Law and Patent Office

2013 – 2017

Sakai International Patent Office

2008 – 2012

Infort Patent Firm

2007 – 2008

Wako Pure Chemical Industries, Ltd.

2003 – 2007

Nippon Soda Co., Ltd.



Graduate School of Science and Technology, Advanced Materials Science and Technology, MSc


Niigata University, Faculty of Engineering, Chemistry and Chemical Engineering


> April 2014, “Authorized OECD Approach” at the Tokyo Certified Public Tax Accountants’ Associations
> November 2014, “Withholding Tax in Japan” at the German Chamber of Commerce (Lecture)
> August 2015, “Taxation in Japan” at the WTS Asia Meeting


Japanese, English