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Koji worked as in-house accountant from 1979 to 1991 for Kubota, Ltd. (a Japanese giant company in the field of manufacturing agricultural machines and iron pipes) due to his speciality of corporate accounting at Hitotsubashi University.


His unique experience is that he lived and worked in East Germany from 1984 to 1988 just before the fall of the Berlin Wall when Kubota was a contractor for building a large foundry in Leipzig, East Germany. He can do with a daily conversation in German.


After leaving Kubota, Ltd., he drastically changed his job and worked for Fukami Patent Office as trademark paralegal and attorney for 25 years from 1991 to 2015.

At the age of sixty, he founded his own IP Law Firm on Jan. 1st 2016, which will be a base camp for his life time attorney and artist.


From 2014, he also provides IP law lectures for students in Tamagawa University in Tokyo once a week.

Founding Owner
Trademark & Patent Attorney
Koji Mukoguchi



Founding Owner of MukoGuchi IP law firm

Jan 2016 – Present

After 25 years experience at Fukami Patent Office, he started his own IP law firm from Jan. 1st 2016.

Visiting Lecturer of IP Law at Tamagawa University

Sep 2014 – Present

Sub-head of Trademark, Design, and Laws Group of

Fukami Patent Office

Jul 1991 – Dec 2015

Visiting Professor of Graduate School of Intellectual Property of Osaka Institute of Technology

Apr 2012 – Mar 2013

Inhouse accountant of Kubota, Ltd.

Apr 1979 – Jun 1991


Hitotsubashi University

Bachelor's Degree

Field Of Study

Commerce, Accounting

1975 – 1979


MukoGuchi IP Law Firm

19F Parks Tower

2-10-70 Nanbanaka Naniwa-ku

Osaka 556-0011 JAPAN


FAX : +81-6--7662-8701

Please do not hesitate to contact us for any question about Japanese trademark matters, IP systems, or even about Japanese cultures or business manner.

Our firm always welcomes any and all  question you might have about the above-mentioned matters. 

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