Articles
The International Comparative Legal Guide to: Patents 2026 – Chapter 14 Japan
(October 2025)
Kenji Tosaki
- Intellectual Property
- IP Transactions
- IP Disputes
Publications
Kenji Tosaki: Publications
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Newsletters
First IP High Court Decision on Patent Linkage and Unfair Competition
Kenji Tosaki, Takahiro Hatori, Nozomi Kato (Co-author)
- Intellectual Property
- Dispute Resolution
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Articles
The Legal 500: 9th Edition Intellectual Property Country Comparative Guide – Japan
(September 2025)
Kenji Tosaki
- Intellectual Property
- IP Transactions
- IP Disputes
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Newsletters
Intellectual Property High Court orders generic drug companies to pay approximately JPY 21.7 billion in total in a patent infringement lawsuit (Judgment rendered May 27, 2025)
Kenji Tosaki, Ryo Tonomura (Co-author)
- Dispute Resolution
- IP Disputes
- Intellectual Property
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Newsletters
Tokyo District Court denies patent infringement claim in a case addressing the scope of a patent during its extended term (May 15, 2025)
Kenji Tosaki, Takahito Hirayama (Co-author)
- Dispute Resolution
- IP Disputes
- Intellectual Property
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Newsletters
Update: A Second Court Decision addressing Patent Linkage and Unfair Competition
Kenji Tosaki, Nozomi Kato (Co-author)
- Intellectual Property
- Dispute Resolution
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Newsletters
Judgment rendered by the Grand Panel of the Intellectual Property High Court on March 19, 2025, regarding the patentability of compositions which contemplate medical procedures both before and after manufacture
Kenji Tosaki, Masato Kumeuchi, Soichiro Unami (Co-author)
- Dispute Resolution
- IP Disputes
- Intellectual Property
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Newsletters
Patents: – The Principle of Territoriality: Two Notable Judgments of the Supreme Court of Japan rendered on March 3, 2025
Kenji Tosaki, Takahiro Hatori, Nozomi Kato (Co-author)
- Intellectual Property
- Dispute Resolution
