INTELLECTUAL PROPERTY IN JAPAN
Your partner for intellectual property
protection in Japan.
Since 1980, Yoshida International Patent Office has represented clients before the Japan Patent Office in patent, utility model, design and trademark matters. We welcome instructions from foreign patent and trademark attorneys.
Firm Overview
| Firm name | Yoshida International Patent Office |
|---|---|
| Established | April 1, 1980 |
| Chairman | Yoshiharu Yoshida, Patent Attorney |
| President | Masahiro Yoshida, Patent Attorney |
| Staff | 11 (including 7 patent attorneys) |
| Tokyo office | Ichigaya Hoso Building, Room 308 4-1-5 Kudan-kita, Chiyoda-ku, Tokyo 102-0073, Japan |
| Philadelphia office | 275 S. Bryn Mawr Avenue Bryn Mawr, PA 19010, U.S.A. |
Representatives
CHAIRMAN, PATENT ATTORNEY
Yoshiharu Yoshida
吉田 芳春
- 1947Born in Hokkaido, Japan
- 1970LL.B., College of Law, Nihon University
- 1976Registered as a Patent Attorney (Benrishi)
- 1996–2012Lecturer, Faculty of Economics, Kanto Gakuin University
- 1996–2017Lecturer, Institute for Small Business Management and Technology (SME University)
- 2001–Lecturer, Graduate School, Sanno University
- 2004Vice President, Japan Patent Attorneys Association
- 2004–Visiting Professor, Kitami Institute of Technology
- 2006–2009Vice Chair, Kanto Branch, Japan Patent Attorneys Association
- 2006–Investigator under the Unfair Competition Prevention Act, Ministry of Economy, Trade and Industry
- 2006–Preliminary Evaluation Committee Member, Regional Technology Development Support Program, Ministry of Economy, Trade and Industry
- 2007–Expert Committee Member on Border Enforcement against IP-Infringing Goods, Ministry of Finance
- 2010–2011Chair, Kanto Branch, Japan Patent Attorneys Association
- 2019–Visiting Professor, Kyoto University of Art and Design
PRESIDENT, PATENT ATTORNEY
Masahiro Yoshida
吉田 雅比呂
- 2000B.S., Department of Chemistry, Faculty of Science, Gakushuin University
- 2002Passed the Japanese Patent Attorney Examination
- 2007J.D., Meiji University Law School
- 2008Joined a patent firm in Tokyo
- 2008Registered as a Patent Attorney (Benrishi), Reg. No. 15962
- 2014Founded Iroha Patent Office
- 2016Certified to act as counsel in specified infringement litigation
- 2023Vice President, Yoshida International Patent Office
- 2024President, Yoshida International Patent Office
Services
Prosecution in Japan
Filing and prosecution before the Japan Patent Office, from filing through registration.
Searches and Opinions
Prior art, clearance and trademark searches, and written opinions on infringement and validity.
Enforcement
Support for warning letters, litigation and border measures in Japan.
Outbound Filings
Filing on behalf of Japanese clients in the United States, Europe, Asia and other jurisdictions.
Contact
 | |
| Telephone | +81-3-6277-7466 |
| Facsimile | +81-3-6385-7621 |
| Tokyo office | Ichigaya Hoso Building, Room 308 4-1-5 Kudan-kita, Chiyoda-ku, Tokyo 102-0073, Japan |
| Nearest station | Ichigaya Station (Toei Shinjuku Line, Tokyo Metro Yurakucho and Namboku Lines, JR Chuo-Sobu Line), 2–4 minutes on foot |
| Philadelphia office | 275 S. Bryn Mawr Avenue Bryn Mawr, PA 19010, U.S.A. |
Tokyo office
Philadelphia office
