Service

Attorneys

President

Hirohito KATSUNUMA

Patent Attorney with litigation qualification

Education

​​Yokohama National University

Language

Japanese/ English/ Chinese

Membership

JPAA, APAA, AIPPI, FICPI

Education & Experience

Guest Professor of Tokyo University of Marine Science and Technology

Vice President of APAA

Senior Directors of AIPPI Japan  

Councillor of FICPI Japan

Practice Areas

Computer software · Nuclear power · Petrochemical engineering · Control ・

Semiconductor · Manufacturing equipment · Other machinery general

Maya KADONAGA

Patent Attorney 

Education

Aoyama Gakuin University

Membership

JPAA, APAA

Practice Areas

Trademark general

Language

Japanese/ English

Katsunuma International Patent Office   Hiro Tokyo IP 

 

Tel: (81)3-6435-5871    Fax: (81)3-6435-5872

Modern-Form II 4F, Nishi-Azabu 1-15-7, Minato-ku, Tokyo,106-0031, Japan

6 min walk from Nogizaka Sta. Tokyo Metro Chiyoda-Line

9 min walk from Roppongi Sta. Tokyo Metro Hibiya-Line/Oedo-Line

3 min walk from Nishi-Azabu Bus Stop Toei Bus

Please feel free to contact us!

· Patent applications in the domestic and foreign countries, applications for utility model registration, application for design registration, Application for trademark registration, intermediate procedures related to them, etc. (General comments, prosecution amendments etc. Creation, advice)
· Intellectual property rights consultant
· Domestic and foreign intellectual property license agreement
· Prior Art Research, Trademark Research
· Referee proceedings (rejection judgment trial, registration invalidation trial, opposition proceedings, rejection trial for nonuse, Correction trial, etc.)
· Proceedings (on behalf of the trial decision cancellation litigation, assistant in infringement litigation)
· Appraisal and judgment request
· Preparation of expert opinion and contract
· Application documents etc. Other, translation
· Application to foreign countries and intermediate proceedings
· Support for disputes in foreign countries etc