Kenji Tosaki: Publications

Articles
The Legal 500: 9th Edition Intellectual Property Country Comparative Guide – Japan

The Legal 500 (online)

The Legal 500 (online)

(September 2025)

Kenji Tosaki
- Intellectual Property
- IP Transactions
- IP Disputes
- Dispute Resolution
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)

NO&T IP Law Update No.14(August, 2025)

NO&T IP Law Update No.14(August, 2025)

Kenji Tosaki, Ryo Tonomura (Co-author)
- Dispute Resolution
- IP Disputes
- Intellectual Property
- Pharmaceutical and Healthcare
- Medical, Pharmaceutical and Life Sciences
Newsletters
Tokyo District Court denies patent infringement claim in a case addressing the scope of a patent during its extended term (May 15, 2025)

NO&T IP Law Update No.13(June, 2025)

NO&T IP Law Update No.13(June, 2025)

Kenji Tosaki, Takahito Hirayama (Co-author)
- Dispute Resolution
- IP Disputes
- Intellectual Property
- Pharmaceutical and Healthcare
- Medical, Pharmaceutical and Life Sciences
Newsletters
Update: A Second Court Decision addressing Patent Linkage and Unfair Competition

NO&T IP Law Update No.11(April, 2025)

NO&T IP Law Update No.11(April, 2025)

Kenji Tosaki, Nozomi Kato (Co-author)
- Intellectual Property
- Dispute Resolution
- IP Disputes
- Pharmaceutical and Healthcare
- Medical, Pharmaceutical and Life Sciences
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

NO&T IP Law Update No.12/NO&T Health Care Law Update No.1(April, 2025)

NO&T IP Law Update No.12/NO&T Health Care Law Update No.1(April, 2025)

Kenji Tosaki, Masato Kumeuchi, Soichiro Unami (Co-author)
- Dispute Resolution
- IP Disputes
- Intellectual Property
- IP Transactions
- Pharmaceutical and Healthcare
- Medical, Pharmaceutical and Life Sciences
Newsletters
Patents: – The Principle of Territoriality: Two Notable Judgments of the Supreme Court of Japan rendered on March 3, 2025

NO&T IP Law Update No.10(March,2025)

NO&T IP Law Update No.10(March,2025)

Kenji Tosaki, Takahiro Hatori, Nozomi Kato (Co-author)
- Intellectual Property
- Dispute Resolution
- IP Disputes
- Technology
- Internet/IT Services/Cloud
- Digital Platform
Articles
The International Comparative Legal Guide to: Digital Health 2025 – Chapter 17 Japan

(March 2025)

Kenji Tosaki, Masanori Tosu (Co-author)
- Intellectual Property
- IP Transactions
- IP Disputes
- Dispute Resolution
- Pharmaceutical and Healthcare
- Medical, Pharmaceutical and Life Sciences
- Technology
- HealthTech
Articles
Chambers Global Practice Guides Trade Marks & Copyright 2025 Japan – Trends & Developments

(March 2025)

Kenji Tosaki, Hiroki Tajima, Chie Komiya (Co-author)
- Intellectual Property
- IP Transactions
Newsletters
Recent Court Decision on (i) Scope of Medicinal Use Invention and (ii) Patent Linkage

NO&T IP Law Update No.8(February, 2025)

NO&T IP Law Update No.8(February, 2025)

Kenji Tosaki, Nozomi Kato (Co-author)
- Intellectual Property
- Dispute Resolution
- IP Disputes
- Pharmaceutical and Healthcare
- Medical, Pharmaceutical and Life Sciences
Articles
Chambers Global Practice Guides Life Sciences & Pharma IP Litigation 2025 Japan – Trends & Developments

(February 2025)

Kenji Tosaki, Takahiro Hatori (Co-author)
- Intellectual Property
- IP Transactions
- Dispute Resolution
- IP Disputes
Articles
The International Comparative Legal Guide to: Copyright 2025 – Chapter 9 Japan

(October 2024)

Kenji Tosaki
- Intellectual Property
- IP Transactions
- IP Disputes
- Dispute Resolution
Articles
The International Comparative Legal Guide to: Patents 2025 – Chapter 17 Japan

(October 2024)

Kenji Tosaki
- Intellectual Property
- IP Transactions
- IP Disputes
- Dispute Resolution

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Kenji Tosaki: Publications

The Legal 500: 9th Edition Intellectual Property Country Comparative Guide – Japan

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)

Tokyo District Court denies patent infringement claim in a case addressing the scope of a patent during its extended term (May 15, 2025)

Update: A Second Court Decision addressing Patent Linkage and Unfair Competition

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

Patents: – The Principle of Territoriality: Two Notable Judgments of the Supreme Court of Japan rendered on March 3, 2025

The International Comparative Legal Guide to: Digital Health 2025 – Chapter 17 Japan

Chambers Global Practice Guides Trade Marks & Copyright 2025 Japan – Trends & Developments

Recent Court Decision on (i) Scope of Medicinal Use Invention and (ii) Patent Linkage

Chambers Global Practice Guides Life Sciences & Pharma IP Litigation 2025 Japan – Trends & Developments

The International Comparative Legal Guide to: Copyright 2025 – Chapter 9 Japan

The International Comparative Legal Guide to: Patents 2025 – Chapter 17 Japan