Office Profile

■ Corporate members
Yoshiyuki MACHIDA, Patent Attorney, Senior Partner
Etsuo TADA, Patent Attorney, Partner
Masakazu UCHIDA, Patent Attorney, Partner

■ Outline of service
Agency service regarding procedures related to the Patent Office (Applications
for patent, utility model, design and trademark, request for various appeals,
request for interpretation, provision of information)
Agency service regarding procedures related to the court (litigation rescinding
a trial decision, patent infringement suit)
Giving expert opinions, investigation
Procedures for patent, utility model, design, trademark in foreign countries
Procedures for extra-judicial conflict resolution regarding patent, utility
model,
design, trademark, layout-design exploitation right and specific unfair
competitions
Procedures regarding import/export suspension in customs
Agency service/consulting on a contract regarding intellectual property
right
Lecture on industrial property right

■ Number of staffs
104（28 patent attorneys, 6 doctors, 1 professional engineerne 1 chinese patent attorneys）

■ Address (after 4/July/2022)

2F, Ichibancho Tokyu Building
21 Ichibancho, Chiyoda-ku, Tokyo 102-0082
JAPAN
Telephone:+81-3-6333-0392 (changed)
Facsimile:+81-3-6333-0393 (changed)
URL ： http://www.isonopat.gr.jp/

■ Company history
Apr 1967
Established Isono International Patent Office 　(The late Michizo Isono)
1997
30th anniversary, relocated the office to Sabo Kaikan
2000
Annual applications (patent, utility model, design, trademark, PCT) reached
1,000.
2011
Annual applications (patent, utility model, design, trademark, PCT) reached
2,000.
Aug 2013
Established Isono International Patent Office, P. C.
Apr 2014
Commenced operations as a Patent Corporation
Oct 2015
Relocated the office to Toranomon, Minato-ku, Tokyo
Apr 2017
50th anniversary
May 2018
Established Isono IP Services LLC
Jul 2022
Relocated the office to Ichibancho Building, Chiyoda-ku, Tokyo