ISONO International Patent Office, P.C.

Corporate Profile

Our Policy

As intellectual property professionals,
we pursue optimal solutions and best measures to lead our clients to success.

From Our Representative

Our mission as intellectual property professionals is to pursue “optimal solutions and best measures” to lead our clients to success.
There is no typical answer to the question of “what is the optimal solutions and best measures.”
“What is the “”success”” for clients?”
“What does it take to sustainably protect intellectual property?”
We need to be flexible in our thinking about a wide variety of issues and challenges, depending on the times and circumstances.
Each member of our firm strives to gain a deep understanding of our clients’ technologies and services, to broaden our knowledge of the latest information and world affairs related to intellectual property, and to derive the ‘optimal solutions and best measures” from a variety of perspectives.
Please feel free to contact us if you have any concerns about intellectual property.
We will not disappoint you and will present you with the “optimal solutions and best measures.”

Yoshiyuki MACHIDA

Corporate Profile

Name of Firm
ISONO International Patent Office, P.C.
Board Members
  • Representative, Patent Attorney, Yoshiyuki MACHIDA (12906)
  • Board, Patent Attorney, Etsuo TADA (11154)
  • Board, Patent Attorney, Masakazu UCHIDA (12984)
Our Service
  • ・Representation in prosecutions before the Japan Patent Office
    (Patent applications, utility model applications, design applications, trademark applications, various appeals, requests for judgments, third party observations.)
  • ・Services of Foreign applications
  • ・Prior Art Searchs, Invalidation Searchs, Infringement Searchs
  • ・Professional Opinion for Invalidation and Infringement
  • ・Representation in prosecutions before the court. (Actions for Revocation of Trial Decisions, Infringement Litigations.)
  • ・Procedures for out-of-court dispute resolution concerning patent rights, utility model rights, design rights, trademark rights, circuit layout exploitation rights or specific unfair competitions.
  • ・Procedures for import/export injunctions at customs
  • ・Representation and consultation on contracts related to intellectual property rights.
  • ・Seminars on Industrial Property Rights
Number of Members
101 (Patent Attorneys 28, Doctors 6, Professional Engineer 1, Patent Attorney admitted in China 1)
Address
2F, Ichibancho Tokyu Building, 21 Ichibancho, Chiyoda-ku, Tokyo 102-0082, JAPAN
TEL: +81-3-6333-0392
FAX: +81-3-6333-0393

History

April 1967
Established ISONO International Patent Office, P.C. by Michizo ISONO
1997
30 years anniversary, Relocated to Sabo Kaikan (Hirakawacho, Chiyoda-ku, Tokyo)
2000
Annual application numbers reached to 1000 cases (Patents, Utility Models, Designs, Trademarks, and PCT)
2011
Annual application numbers reached to 2000 cases (Patents, Utility Models, Designs, Trademarks, and PCT)
August 2013
Established patent corporation of ISONO International Patent Office, P.C.
April 2014
Started operation as the patent corporation
October 2015
Relocated to Hulic Toranomon Building (Toranomon, Chiyoda-ku, Tokyo)
April 2017
50 years anniversary
May 2018
Established a related company (ISONO IP Service LLC)
July 2022
Relocated to Ichibancho Tokyu Building (Ichibancho, Chiyoda-ku, Tokyo)
July 2022
Changed name of the firm as Patent Attorney Corporation of ISONO International Patent Office, P.C.

Access

2F, Ichibancho Tokyu Building, 21 Ichibancho, Chiyoda-ku, Tokyo 102-0082, JAPAN
TEL:+81-3-6333-0392
FAX:+81-3-6333-0393
1 minute walk from Hanzomon Station [Exit 5] on the Tokyo Metro Hanzomon Line
7 minutes walk from Kojimachi Station [Exit 3] on the Tokyo Metro Yurakucho Line