Updated on 2026/03/30

写真a

 
RADEMACHER, Christoph
 
News & Topics
Affiliation
Faculty of Law, School of Law
Job title
Professor
Degree
Doctorate

Research Areas

  • Civil law

Awards

  • Waseda Research Award

    2020.01   Waseda University  

 

Papers

  • Copyright and Generative AI in Japan and China

    Christoph Rademacher, Wanru Cai

    Ebers / Poncibo / Zou / Calo (eds.), Cambridge Research Handbook on Generative AI and the Law, Cambridge University Press     300 - 316  2025.07

  • KI-Governance in Japan: Urheberrecht als Vorreiter?

    Christoph Rademacher

    Zeitschrift für Urheber- und Medienrecht   69 ( 3 ) 183 - 188  2025.03

    Authorship：Lead author

  • The effect of the "selection" of methods for limiting the effect of standard-essential patents (SEPs)

    Christoph Rademacher

    A Collection of Essays Commemorating Professor Ryoichi Mimura's 70th Birthday: Pioneering the Future of Intellectual Property Law, Nihon Hyoronsha     395 - 406  2024.10

    Authorship：Lead author

  • Japanese Big Data Protection as a Part of a Different AI Strategy

    Christoph Rademacher

    Thouven / Peukert / Jaeger / Geiger (eds.), Innovation Kreation Märkte - Innovation Creation Markets - Festschrift Reto M. Hilty, Springer     1055 - 1063  2024.03

    Authorship：Lead author

  • The impact of copyright on the development of design protection in Germany

    Christoph Rademacher

    Law & Practice   17   133 - 150  2024.03

    Authorship：Lead author

  • Erfahrung, Effizienz, Fairness: Auf der Suche nach einer "angemessenen" Trennung von Patentverletzungs- und Rechtsbestandsentscheidung

    Christoph Rademacher

    Festschrift für Thomas Kühnen, Heymanns     829 - 840  2024.02

    Authorship：Lead author

  • Patent Litigation Strategies in Germany: Maneuvering the Evolving Landscape of Bifurcation

    Matthias Lamping, Christoph Rademacher

    Matthews / Torremans (eds.), European Patent Law, De Gruyter     423 - 445  2023.12

    Authorship：Last author

  • Copyright, Parody, and the Public Domain: An Examination of Cultural Impacts on German and Japanese Copyright Law

    Christoph Rademacher

    Yoshiyuki Tamura(ed.): Intellectual Property and the Public Domain, Keiso Shobo   2   369 - 394  2023.06

    Authorship：Lead author

  • Trademark Parody under Japanese Trademark Law: Finding the Fine Line in Japanese Humor

    Christoph Rademacher, Roberto Carapeto

    Haochen Sun / Barton Beebe (eds.): Charting Limitations on Trademark Rights, Oxford University Press     296 - 316  2023.04

    Authorship：Lead author, Corresponding author

  • Japanese Cybersecurity Law

    Christoph Rademacher, Mayu Terada

    Dennis Kipker (ed.), Rechtshandbuch Cybersecurity, Beck   2   978 - 990  2023.04

    Authorship：Lead author, Corresponding author

  • A comparative legal study of the inspection system in Japan

    Christoph Rademacher

    New Horizons in Intellectual Property Law: Essays Commemorating Professor Ryu Takabayashi's 70th Birthday, Nihon Hyoronsha     115 - 139  2022.11

    Authorship：Lead author

  • Regulation of Digital Platforms and the Digital Economy in Japan

    Tsukasa Aso, Christoph Rademacher

    GRUR International   71 ( 10 ) 980 - 995  2022.09  [Refereed]

    Authorship：Corresponding author

    　View Summary

    Abstract

    The digital economy continues to evolve in Japan and around the world. Big data and personal information have significant economic value and require appropriate legal protection for both information providers and users. Digital platforms, as online intermediaries, occupy a particularly important position in relation to the handling of such information. While digital platforms can greatly benefit society by accumulating and structuring large amounts of data from diverse markets, they can also be prone to the lock-in effect, resulting in monopolies or oligopolies due to network effects. Therefore, digital platforms can have a detrimental effect on individuals and society if they do not operate appropriately. Potential issues include a lack of transparency and fairness of transactions, distribution of infringing content, and the mishandling of data and personal information. Policymakers across the globe recognize these issues, and various regulatory measures have been proposed and implemented. In this paper, we outline how Japan regulates issues related to digital platforms and the digital economy, and highlight some nuances of the Japanese law by comparing it with corresponding European systems.

    DOI

    Scopus

    2
    Citation
    (Scopus)

  • Expertise, efficiency, and impartiality: Exploring appropriate bifurcations for patent infringement and invalidity determinations.

    Christoph Rademacher

    Waseda University Law Society Centennial Commemorative Essays, Seibundo.   4   115 - 139  2022.03

    Authorship：Lead author

  • Injunctions under German Patent Law

    Christoph Rademacher

    Annual of Industrial Property Law   45   213 - 226  2022.03

    Authorship：Lead author, Corresponding author

  • The emergence of a global standard for reasonable efforts?

    Christoph Rademacher

    Sharon Sandeen, Christoph Rademacher & Ansgar Ohly (eds.): Research Handbook on Information Law and Governance, Edward Elgar     135 - 153  2021.09  [Refereed]

    Authorship：Lead author

  • Protecting IP Licenses and Jointly Owned IP in the Age of COVID-19: Insolvency and Force Majeure Events under Japanese Law

    Kei Matsumoto, Christoph Rademacher, Ayako Suga

    GRUR International   70 ( 5 ) 463 - 485  2021.05  [Refereed]

    Authorship：Corresponding author

    　View Summary

    Abstract

    This article provides an overview and discussion of a multitude of issues that are relevant for IP licensing under Japanese law. The authors recap the results of the legislative process that predominantly addressed the IP licensee’s position in the case of a licensor's insolvency, including the 2020 amendment to the Japanese Copyright Act, and examine whether a comprehensive reform of IP licensing regulations in Japan would be preferable to also offering better protection to trademarks, trade secrets and data licensees. Given that Japanese companies often agree on jointly owning IP generated in the process of software development and other co-development projects, we analyze the risks of joint ownership compared to non-exclusive licenses. To further illustrate such risks that may be even more significant in cross-border constellations, we conduct a comparative study on the actions that a party commissioning the development of new software can take without obtaining the software developer’s consent under Japanese, US and German patent and copyright law. Furthermore, we examine certain unresolved issues that may arise in the case of a party’s insolvency or the impact of force majeure events, and provide suggestions on how to address these when drafting and negotiating IP license agreements.

    DOI

    Scopus

    2
    Citation
    (Scopus)

  • Cultural Impact on Copyright Exceptions: Parody in Germany and Japan

    Christoph Rademacher

    Shyamkrishna Balganesh, Ng-Loy Wee Loon, Haochen Sun (eds.):The Cambridge Handbook of Copyright Limitations and Exceptions, Cambridge University Press     343 - 363  2021.05

    Authorship：Lead author

  • Noteworthy Features of Japanese Design Law from the Perspective of European Law

    Tsukasa Aso, Christoph Rademacher

    Christoph Rademacher & Tsukasa Aso (eds.), Japanese Design Law and Practice, Wolters Kluwer     353 - 366  2020.12  [Refereed]

    Authorship：Corresponding author

  • International Jurisdiction and Governing Law

    Christoph Rademacher

    Christoph Rademacher & Tsukasa Aso (eds.), Japanese Design Law and Practice, Wolters Kluwer     191 - 198  2020.12  [Refereed]

    Authorship：Lead author

  • The Parody Exception in Japanese Copyright Law

    Christoph Rademacher

    Patents & Licensing   ( 49-5 ) 9 - 16  2019.09  [Invited]

  • The Theory and Practice of Patent Damages in Japan and the US – Explaining the Differences that Remain

    Christoph Rademacher

    Takenaka, Toshiko (Editor): Patent Law and Theory: A Handbook of Contemporary Research, 2nd edition, Edgar Elgar Publishing     272 - 295  2019.07

    Authorship：Lead author

  • Injunctive Relief in Japan

    Christoph Rademacher

    Rafal Sikorski (editor): Patent Law Injunctions, Wolters Kluwer     223 - 235  2018.10

    Authorship：Lead author

  • Design Protection in Germany

    Christoph Rademacher

    Special Issue of Japanese Society for the Science of Design   98 ( 25-2 ) 16 - 27  2017.10  [Invited]

    CiNii

  • Patent Damages in Japan: Why do Japanese Courts award so little?

    Christoph Rademacher

    Patents & Licensing   ( 47-4 ) 9 - 18  2017.09  [Invited]

  • Governing and Protecting Information in Intellectual Property Law - Information Governance and Trade Secrets

    Christoph Rademacher

    Kenji E. Kushida, Yuko Kasuya, Eiji Kawabata (eds.): Information Governance in Japan: Towards a Comparative Paradigm, , Stanford Silicon Valley New Japan E-Book Series   6  2016.10  [Refereed]

    Authorship：Lead author

  • After Years of Waiting - Are SEPs Now Worthless in Europe?

    Christoph Rademacher

    Intellectual Property Law and Policy Journal   ( 48 ) 193 - 212  2016.09  [Invited]

    CiNii

  • Essential Points in Trade Secret Law - Towards a Comparative Law Approach on the Scope of and Measures for Protection of Trade Secrets

    Christoph Rademacher

    Annual of Industrial Property Law   ( 39 ) 35 - 55  2016.05  [Invited]

    CiNii

  • The Binding Nature of Court Decisions in Japan’s Civil Law System

    Toshiaki Iimura, Ryu Takabashi, Christoph Rademacher

    Stanford Law School CGCP Commentary    2015.08

    Authorship：Corresponding author

  • The Introduction of the Unified Patent Court System in Europe and its impact on Japan

    Christoph Rademacher, Kei Matsumoto

    Journal of Intellectual Property Association of Japan   11 ( 3 ) 36 - 43  2015.08

    Authorship：Lead author, Corresponding author

  • "German Model Law on Intellectual Property"

    Christoph Rademacher

    Comparative law review   48 ( 2 ) 267 - 276  2014.12

    CiNii

  • Injunctive relief in patent cases in the US, Germany and Japan: Recent developments and outlook

    Christoph Rademacher

    Intellectual Property in Common Law and Civil Law     325 - 348  2013

    DOI

    Scopus

  • Patent Enforcement in Japan

    Christoph Rademacher

    IIP Bulletin    2012.01

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Books and Other Publications

  • History of design and design law : an international and interdisciplinary perspective

    Aso, Tsukasa, Rademacher, Christoph W., Dobinson, Jonathan

    Springer  2022.04 ISBN: 9811687811

    ASIN

  • Research handbook on information law and governance

    Sandeen, Sharon K., Rademacher, Christoph W., Ohly, Ansgar

    E. Elgar  2021 ISBN: 9781788119917

  • Japanese Design Law and Practice

    Christoph Rademacher, Tsukasa Aso( Part： Joint editor)

    Wolters Kluwer  2020.12 ISBN: 9789403506418

  • The Legal System of Design Protection: Current Situation and Issues through the Perspective of Jurists and Designers

    Tsukasa Aso, Christoph Rademacher

    Nippon Hyoronsha  2016.12

  • Patent Enforcement in the US, Germany and Japan

    Toshiko Takenaka, Christoph Rademacher, a( Part： Joint author)

    Oxford University Press  2015.12 ISBN: 9780199679201

  • Die gerichtliche Durchsetzung von Patent- und Markenrechten in Deutschland, Japan und den USA

    Christoph Rademacher

    Nomos  2010.05 ISBN: 3832953264

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Presentations

  • Antitrust Issues in Patent Pools and Industry Standards in Japan,

    Christoph Rademacher  [Invited]

    IP Protection in the Information Age, Renmin University, Beijing 

    Presentation date： 2012.06

  • Injunctive Relief under US Patent Law

    Presentation date： 2012.03

Research Projects

  • パブリック・ドメインの醸成と確保という観点からみた各種知的財産法の横断的検討

    Project Year :

    2018.06
    -
    2023.03
     

  • Balancing Open-Close Strategy Options to Foster Innovation Policy in Japan: Navigating the Conflict between Patent Disclosure and Corporate Secrecy

    Project Year :

    2018.04
    -
    2022.03
     

  • 複数国間の共通的知的財産制度及び関連法制度の研究

    Project Year :

    2017.04
    -
    2022.03
     

    　View Summary

    研究期間の3年目に入り、研究を一層深化させるとともに、国内外の研究会、学会等で研究成果の発信を行った。具体的には、次のとおりである。（１）米国、ドイツ、英国、スイス等の研究者と実施した特許権侵害に対する救済措置に関する国際共同研究の成果をケンブリッジ大学出版から書籍（"Patent Remedies and Complex Products: Toward a Global Consensus"）として公刊した（オープンアクセスも可能な形で提供している。）。（２）特許制度の研究のためには、同様の保護対象を持つ営業秘密制度についても研究を行う必要があるとの認識から、営業秘密の国際的保護に関する研究を進めた。その成果を欧州の国際会議において、欧米の研究者と共通論題に関するパネルを組んで、パネリストとして報告を行ったのか、名古屋大学での国際会議等でも発表した（なお、2020年3月に、欧米の研究者も招いて国内で研究会を開催することを企画していたが、これは新型コロナウイルス感染症問題により中止した。）。（３）特許権の国際的保護に関し、実体法的側面と手続法的側面（国際私法の視点）の両方について研究を進め、成果を国際会議で発表した。経済学の観点からの研究としては、グレースピリオドに焦点を当てた研究を行い、国際会議で報告した。（４）標準必須特許を巡る問題につき、国内学会（法と経済学会）で報告するとともに外国研究者との共著書を出版した。（５）特許制度について考察する基礎として情報・データの法的保護に関する研究も行い、論文と研究会での研究報告を通じて成果を発表した。多数の国際会議での報告と、複数の書籍及び論文の発表を行い、また新たな研究者とのネットワークの拡大も実現できた。2020年度は最終年度の2021年度に向けて研究のとりまとめに着手する。2019年度も、個別テーマの探求が主たる活動となったことから、2020年度は特許制度全体に関する体系的な検討を進めることとする

  • デザイン保護法制の国際的調和-創作実態を踏まえた世界的なデザイン保護のあり方-

    Project Year :

    2017.04
    -
    2021.03
     

    　View Summary

    本年度も申請書記載のように、法学チーム、デザイン学チーム、実験チームの3チームでそれぞれ研究を遂行した。法学チームは、特に令和元年に改正された日本の意匠法について、その改正内容の検討を行なった。また、令和２年に公表された意匠審査基準（（案）も含む）から改正の具体的運用についての検討を行なった。さらに、個別テーマとして、これまでの意匠法改正および令和元年意匠法改正における比較法の用いられ方について検討を行い、日本工業所有権法学会のシンポジウムで発表した。そして、令和元年改正により意匠法に新たな保護対象が追加されたことに伴う意匠の類否判断の際の需要者の把握について欧州との比較検討を行った。当該成果は来年度公表される。デザイン学チームは各国での創作実態と保護ニーズの分析を行い、さらに令和元年意匠法改正についてデザイナーから見た改正の評価の検討を行なった。実験チームはすでに終えた実験データを整理し、認知科学的類似概念から見た意匠の法的な類似概念（特に物品の意匠の類似に物品の類似が要求されることの是非）について法学チームとともに検討した。また、昨年度出版を予定していたが、日本の意匠法改正および意匠審査基準の内容を反映させる必要があることから出版を延期していた『Japanese Design Law and Practice』（Kluwer Law International社）について、改正内容等を各執筆者が反映させる作業を行なった。さらに、編集者が集まり、形式面の統一などの編集作業を行なった。令和元年に日本の意匠法が改正され、令和２年に改正法を受けた意匠審査基準が公表されたため、特に意匠審査基準について充分な検討ができなかったことによる。本年度は研究のとりまとめに注力する。特に、日本の意匠法改正により出版を延期していた『Japanese Design Law and Practice』（Kluwer Law International社）を公刊する

  • Promoting Innovation through the Definition of an Appropriate Scope for Patent Protection in Asia

    Project Year :

    2015.04
    -
    2018.03
     

    　View Summary

    I wrote a number of articles and book chapters and gave a number of lectures and presentations on the appropriate scope of patent protection, focusing both on appropriate enforcement procedures as well as on limitations and related procedure. Highlights were my contributions to the METI working group trying to establish a dispute resolution mechanism for standard-essential patents in Japan in 2017 and early 2018, and my conference presentation at the 1st World Conference on Access to Medical Products and International Laws for Trade and Health in Delhi in 2017

  • Towards harmonization of design protection - through the perspective of the harmonization of creative activity and legal protection -.

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research

    Project Year :

    2014.04
    -
    2017.03
     

    ASO Tsukasa, KIM Junha, KIMURA Kodai, NAKATSUJI Nao, CARAPETO Roberto, SUEMUNE Tatsuyuki, TAKADA Kumi

    　View Summary

    This research aims at clarifying the way of worldwide harmonization of design protection through the perspective of the actual design creative activity. Specifically, the followings about the current status and issues of design protection law are discussed. (1) Current status and issues of design law in each country, (2) Origin of design law in each country, (3) Relationship between design law, intellectual property law and other laws, (4) Design law from the point of view of design process and designers, and (5) Differences in legal similarity and cognitive science similarity

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Syllabus

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Sub-affiliation

  • Faculty of Law   Graduate School of Law

  • Faculty of Science and Engineering   Graduate School of Advanced Science and Engineering

Internal Special Research Projects

  • Towards a Common Understanding of Patent Disclosure Standards

    2023  

    　View Summary

    The PI  purchased relevant books and studied recent Japanese and US cases that had an impact on developing patent disclosure guidelines. The PI also employed an RA to help in accessing and summarizing material, including technology details, in Japanese language. Research outcomes including an accepted paper at IPSC, and an invitation to conduct further research in this field at the CeBIL at the University of Copenhagen, the applications for which were prepared with help from the .特定課題 funding.. 

  • Enforcement of Patents in Japan, Germany and the US

    2011  

    　View Summary

    I received the Grant for Special Projects, and used it for arranging and attending a meeting with my cooperation partners in July 2012. The meeting and workshop was held in Seattle, USA. I specifically met with Professor Toshiko Takenaka and Dr. Jan Krauss, who are my co-authors of the treatise "Enforcement of Patents in the US, Germany and Japan", and with whom I intensively discussed recent developments and general differences under US and German patent law, the findings of which we reflected in our treatise preparation. During the same workshop, I also had the chance to meet with Mr. Mike Elmer, a senior attorney with the leading US IP law firm Finnegan, who is acting as a consultant for our treatise project. Mr. Elmer is running a global patent law database, in the course of which he and is collaborators are collecting and analyzing patent infringement litigation data from all major patent law jurisdictions worldwide. As we are planning to include some of Mr. Elmer's data into our treatise to provide the reader with a more complete picture of the statistical merits of patent litigation in each of the three jurisdictions we are examining (US, Germany, Japan), it was very helpful to gain further understanding of his findings and methodology. In addition, I had the chance to meet with our leading US attorneys during the workshop, who confirmed some of my understanding about current trends in US patent litigation, in particular with respect to parallel proceedings at US District Court and at the US International Trade Commission, which were essential for me in preparing a public seminar held in March 2012, and for preparing the respective parts of our treatise.