We provide tailored intellectual property services to meet the specific needs of each client.
We believe that effective intellectual property protection begins with a clear understanding of the client's business, products, services and future plans. By understanding what the client wishes to protect and achieve, we can propose appropriate ways to protect and utilize their intellectual property.
We are committed to providing practical and personalized support for clients seeking intellectual property protection in Japan.
Katsuyuki KOBAYASHI,
patent attorney & CAPLS(Certified Administrative Procedure Legal Specialist)
Areas of expertise
Trademark, Design, Patent and Utility Model (All fields except for chemical matters, electronic circuit placement), Copyright
Education
LL.B., Meiji University
B.Eng. in Electrical Engineering, Tokyo University of Science
Professional Experience
I established KARIN International IP Firm in May 2012 after working at several intellectual property firms in Tokyo, ranging from small practices to larger firms.
Through more than 30 years of experience in the intellectual property field, I have handled a wide range of IP matters and worked with many overseas associates and clients.
My experience at firms of different sizes has taught me that the quality of professional services does not depend on the size of the firm. A small firm can provide highly professional services while offering clients more direct communication, clearer responsibility and prompt responses.
For this reason, I have chosen to keep KARIN International IP Firm small so that we can provide each client with direct, flexible and attentive professional services.
Keep small, Keep excellence. This is my policy.
1984.4~
・J.YAMAUCHI & CO. (trademark) (for 1 year)
・HIROSE International Patent Office, (trademark) (for 3 years)
・KAWAGUCHI International Patent Office, (patent and trademark) (for 3 years)
・HANABUSA Patent Office, (design, trademark) (for 12 years)
・ODA International Patent Office, (design, trademark, copyright) (for 6 years)
・AKIMOTO & Co. (trademark, patent, copyright) (for 3 years)
and others
~2012.3
Memberships & Associations
- JPAA (Japan Patent Attorneys Association)
- JTA (Japan Trademark Association)(joined SCT meeting 35,37)
- AIPPI (Association Internationale pour la Protection de la Propriété Intellectuelle)
- APAA (The Asian Patent Attorneys Association) (joined: Chiang Mai 2012, Penang 2014, Okinawa 2015, Bali 2016, New Delhi 2018, Taipei 2019, Busan 2022, Singapore 2023, Manila 2024, Malaysia 2025)-Trademark Committee member
- Chiang Mai
- Penang
- Okinawa
- Bali
- New Delhi
- New Delhi
- Taipei
- Busan
- Sct
- Sct
- WIPO
- Manila
Committee Activities at the Japan Patent Attorneys Association (JPAA)
Served on various JPAA committees and organizations, including:
- Trademark Committee (2019, 2025–2026)
- Design Committee (2018, 2020, 2024)
- Agriculture, Forestry and Fisheries Intellectual Property Committee (2017–2018, 2020–2021)
- Intellectual Property Support Committee (2021)
- Overseas Support Committee (2015–2016)
- Southeast Asia Intellectual Property Committee (2013)
- Intellectual Property Valuation Center (2011–2012)
MEMBERS
Mari HYUGA
 | Patent attorney & CAPLS Areas of expertise Trademark and Design Education Bachelor of Geography |
Tsunenori KOBAYASHI
 | Patent attorney & CAPLS Areas of expertise Patent and Utility Model Education Bachelor of Mechanical Engineering |
NETWORK OF PROFESSIONALS
Kosuke SATO
| Lawyer, patent attorney Areas of expertise Corporate law, Intellectual property law, Inheritance law Education Juris Doctor |
Tomoaki HARADA
| CAPLS Areas of expertise Application for Construction Industry, Education Bachelor of Agriculture |
Saori MATSUMOTO
| CAPLS Certified Procedurer of Application of Immigration Areas of expertise Immigration Education Bachelor of Education |