Awards
Practice Areas
Education/Professional Experience
- 2005
- The University of Tokyo (LL.B.)
- 2006 -
- Nagashima Ohno & Tsunematsu
- 2012
- Duke University School of Law (LL.M.)
- 2012 - 2013
- Debevoise & Plimpton LLP, New York
- 2017 - present
- Partner, Nagashima Ohno & Tsunematsu
- 2022 - present
- Adjunct Lecturer (Civil Law), The University of Tokyo
Awards
Seminars
-
May 29, 2025 (Thu) 14:00 - 16:30Navigating the Latest Trends in Real Estate Law: Insights on Data Centers and Hotels
- Mami Ikebukuro
- Kenji Utsumi
- Makoto Saito
Nagashima Ohno & Tsunematsu Tokyo Office
- Real Estate and REITs
- Real Estate Investment/Real Estate Securitization
-
December 18, 2023 (Mon) -Healthcare and Technology – Regulatory Framework and Legal Practice on HealthTech
- Kensuke Suzuki
- Yoshinobu Koyama
- Masanori Tosu
Online (On-Demand)
- Pharmaceutical and Healthcare
- Medical, Pharmaceutical and Life Sciences
-
June 4, 2021 (Fri) 12:00 -Regulations on Medical Device Programs (SaMD) in Japan, the U.S., and Europe—Country-Specific Practitioner Overviews
- Kensuke Suzuki
- Yoshinobu Koyama
- Scott Danzis (Covington & Burling (Washington) Partner)
Online (On-Demand)
- Pharmaceutical and Healthcare
- Medical, Pharmaceutical and Life Sciences
-
October 29, 2020 (Thu) 12:00 -
Amendments to the Pharmaceutical and Medical Devices Act – Overview of the Sections to be Implemented in September 2020, and Establishment of a Legal Compliance System
- Yoshinobu Koyama
Online (On-Demand)
- Pharmaceutical and Healthcare
- Medical, Pharmaceutical and Life Sciences
Publications
-
Articles
The Legal 500: 8th Edition Construction Country Comparative Guide – Japan
(April 2025)
Shinichiro Horaguchi, Yoshinobu Koyama, Yoshihisa Watanabe, Kaori Sugimoto (Co-author)
- Real Estate and REITs
- Real Estate Transactions
-
Articles
The Legal 500: 2nd Edition Life Sciences Country Comparative Guide – Japan
(March 2025)
Yoshinobu Koyama, Masato Kumeuchi, Masanori Tosu (Co-author)
- Pharmaceutical and Healthcare
- Medical, Pharmaceutical and Life Sciences
-
Articles
Chambers Asia-Pacific 2025 In-depth Overview – JAPAN: An Introduction to Life Sciences
(December 2024)
Kenji Utsumi, Kensuke Suzuki, Yoshinobu Koyama, Masato Kumeuchi, Masanori Tosu (Co-author)
- Pharmaceutical and Healthcare
- Medical, Pharmaceutical and Life Sciences
-
Articles
Lexology Panoramic – Real Estate 2025 Japan
(November 2024)
Shinichiro Horaguchi, Yoshinobu Koyama, Yoshihisa Watanabe, Masato Kumeuchi (Co-author)
- Real Estate and REITs
- Real Estate Transactions
