About I.F.PARTNERS

Message

Through trust and communication with our clients, we strive to obtain better rights and contribute to their IP strategies.

On this basis, we will continue to provide value to our clients as a better partner and work to become a patent firm that can contribute to society.

Contact Information

Name	I.F. PARTNERS
Establishment	April 1, 1987
Firm Representative	Mitsufumi MATSUMOTO
Services	Patent, Design and Trademark Prosecutions, Litigations In addition consulting services
Employees	Staff：34 （As of September 2025）
Employees	Patent Attorneys 13 Patent Engineers 5 Domestic service team 4 International service team 9 Accounting service team 2 Partnering attorney at law 1
Location	Hirata Building 8F, 2-8-16, Kanda-Sarugaku-cho Chiyoda-ku, Tokyo 101-0064 Japan
TEL	+81-3-5577-3025
FAX	+81-3-5577-3027
Email	office[at]ifpat[dot]gr[dot]jp
Reception time	from 9:30 a.m. to 5:30 p.m. (except from 12 noon to 1 p.m., Saturdays, Sundays and holidays)
Access	4 minutes walk from JR Suidobashi Station 9 minutes walk from JR Ochanomizu Station