Jenner & Block Japan Newsletter
Welcome to the April 2025 edition of the Jenner & Block Japan Newsletter, a publication containing updates about legal developments in the United States that may be noteworthy to our clients and other leaders in the Japanese legal and business communities.
First, we are excited to welcome our friends to Chicago for the 2025 IPBA Annual Meeting and Conference, and invite readers to join us on Thursday, April 24th for a cocktail reception following the IPBA Gala Dinner. Consider joining us on the top floor of our office to experience breathtaking views of the iconic Chicago skyline while enjoying live jazz and Chicago-themed cocktails. For more details and to rsvp for the reception, please click here – we hope to see you in the Windy City.
We would also like to recognize our Japan Practice Co-Chair, Miwa Shoda, for her ranking in the 2025 Chambers Global guide in two categories: Litigation-USA: Foreign Expert (Japan) and Dispute Resolution-Japan: Japan Expertise Based Abroad. Miwa is the only lawyer from law firms in the US to be ranked for Japan in these categories.
Returning to the substance of our Newsletter, this edition spans a wide array of legal topics, including a review of a recent lawsuit highlighting the importance of Hart-Scott-Rodino Act compliance for companies pursuing a merger or acquisition. We also provide an overview of the landscape for financial technology companies in the United States, which has seen significant shifts in 2025.
This edition of the Newsletter also covers the recent pause of Foreign Corrupt Practices Act (FCPA) enforcement and the importance of maintaining FCPA compliance regardless of the current enforcement climate. We then review recent decisions by the Delaware Supreme Court and Delaware Court of Chancery that touch on the importance of drafting narrowly tailored restrictive covenants and precisely drafted earnout provisions. That article is followed by an examination of a trade secret ruling that resulted in a $17 million attorney fee award. Furthermore, we provide an overview of the recently enacted California AI Transparency Act. The new statute sets disclosure requirements for generative AI companies. Also covered is a class action suit regarding the claimed existence of microplastics in consumer products and a patent decision that may raise costs for companies facing infringement allegations. Finally, the Newsletter discusses a decision by the US Supreme Court clarifying the circumstances under which victims of a foreign state’s expropriation of property can seek redress in US courts.
We hope that you find the information in the Jenner & Block Japan Newsletter of interest and helpful to your law practice or business operations. We thank you for taking the time to review our publication.
Regards,
The Jenner & Block Team
Antitrust
Premerger Enforcement Actions Highlight Importance of HSR Compliance
Fintech
Investigations, Compliance, and Defense
Corporate
Corporate
The Importance of Drafting Precise Earnout Provisions in M&A Transactions
Artificial Intelligence
California’s AI Transparency Act
Class Action
Microplastics Can Lead to Big Lawsuits
Trade Secrets
$17 Million Attorney Fee Award Aims to Deter Malicious Trade Secret Misappropriation
Patent
Human Rights
US Supreme Court Clarifies Availability of US Forum for Victims of Foreign State Expropriation
Articles
Antitrust
Premerger Enforcement Actions Highlight Importance of HSR Compliance
Fintech
Investigations, Compliance, and Defense
Corporate
Corporate
The Importance of Drafting Precise Earnout Provisions in M&A Transactions
Artificial Intelligence
California’s AI Transparency Act
Class Action
Microplastics Can Lead to Big Lawsuits
Trade Secrets
$17 Million Attorney Fee Award Aims to Deter Malicious Trade Secret Misappropriation
Patent
Human Rights
US Supreme Court Clarifies Availability of US Forum for Victims of Foreign State Expropriation
Related Attorneys
Related Capabilities
© 2026 Jenner & Block LLP. Attorney Advertising. Jenner & Block LLP is an Illinois Limited Liability Partnership including professional corporations. This publication, presentation, or event is not intended to provide legal advice but to provide information on legal matters and/or firm news of interest to our clients and colleagues. Readers or attendees should seek specific legal advice before taking any action with respect to matters mentioned in this publication or at this event. The attorney responsible for this communication is Brent E. Kidwell, Jenner & Block LLP, 353 N. Clark Street, Chicago, IL 60654-3456. Prior results do not guarantee a similar outcome. Jenner & Block London LLP, an affiliate of Jenner & Block LLP, is a limited liability partnership established under the laws of the State of Delaware, USA and is authorised and regulated by the Solicitors Regulation Authority with SRA number 615729. Information regarding the data we collect and the rights you have over your data can be found in our Privacy Notice. For further inquiries, please contact dataprotection@jenner.com.
Welcome to the April 2025 edition of the Jenner & Block Japan Newsletter, a publication containing updates about legal developments in the United States that may be noteworthy to our clients and other leaders in the Japanese legal and business communities.
First, we are excited to welcome our friends to Chicago for the 2025 IPBA Annual Meeting and Conference, and invite readers to join us on Thursday, April 24th for a cocktail reception following the IPBA Gala Dinner. Consider joining us on the top floor of our office to experience breathtaking views of the iconic Chicago skyline while enjoying live jazz and Chicago-themed cocktails. For more details and to rsvp for the reception, please click here – we hope to see you in the Windy City.
We would also like to recognize our Japan Practice Co-Chair, Miwa Shoda, for her ranking in the 2025 Chambers Global guide in two categories: Litigation-USA: Foreign Expert (Japan) and Dispute Resolution-Japan: Japan Expertise Based Abroad. Miwa is the only lawyer from law firms in the US to be ranked for Japan in these categories.
Returning to the substance of our Newsletter, this edition spans a wide array of legal topics, including a review of a recent lawsuit highlighting the importance of Hart-Scott-Rodino Act compliance for companies pursuing a merger or acquisition. We also provide an overview of the landscape for financial technology companies in the United States, which has seen significant shifts in 2025.
This edition of the Newsletter also covers the recent pause of Foreign Corrupt Practices Act (FCPA) enforcement and the importance of maintaining FCPA compliance regardless of the current enforcement climate. We then review recent decisions by the Delaware Supreme Court and Delaware Court of Chancery that touch on the importance of drafting narrowly tailored restrictive covenants and precisely drafted earnout provisions. That article is followed by an examination of a trade secret ruling that resulted in a $17 million attorney fee award. Furthermore, we provide an overview of the recently enacted California AI Transparency Act. The new statute sets disclosure requirements for generative AI companies. Also covered is a class action suit regarding the claimed existence of microplastics in consumer products and a patent decision that may raise costs for companies facing infringement allegations. Finally, the Newsletter discusses a decision by the US Supreme Court clarifying the circumstances under which victims of a foreign state’s expropriation of property can seek redress in US courts.
We hope that you find the information in the Jenner & Block Japan Newsletter of interest and helpful to your law practice or business operations. We thank you for taking the time to review our publication.
Regards,
The Jenner & Block Team
Antitrust
Premerger Enforcement Actions Highlight Importance of HSR Compliance
Fintech
Investigations, Compliance, and Defense
Corporate
Corporate
The Importance of Drafting Precise Earnout Provisions in M&A Transactions
Artificial Intelligence
California’s AI Transparency Act
Class Action
Microplastics Can Lead to Big Lawsuits
Trade Secrets
$17 Million Attorney Fee Award Aims to Deter Malicious Trade Secret Misappropriation
Patent
Human Rights
US Supreme Court Clarifies Availability of US Forum for Victims of Foreign State Expropriation
Articles
Antitrust
Premerger Enforcement Actions Highlight Importance of HSR Compliance
Fintech
Investigations, Compliance, and Defense
Corporate
Corporate
The Importance of Drafting Precise Earnout Provisions in M&A Transactions
Artificial Intelligence
California’s AI Transparency Act
Class Action
Microplastics Can Lead to Big Lawsuits
Trade Secrets
$17 Million Attorney Fee Award Aims to Deter Malicious Trade Secret Misappropriation
Patent
Human Rights
US Supreme Court Clarifies Availability of US Forum for Victims of Foreign State Expropriation
Related Attorneys
Related Capabilities
© 2026 Jenner & Block LLP. Attorney Advertising. Jenner & Block LLP is an Illinois Limited Liability Partnership including professional corporations. This publication, presentation, or event is not intended to provide legal advice but to provide information on legal matters and/or firm news of interest to our clients and colleagues. Readers or attendees should seek specific legal advice before taking any action with respect to matters mentioned in this publication or at this event. The attorney responsible for this communication is Brent E. Kidwell, Jenner & Block LLP, 353 N. Clark Street, Chicago, IL 60654-3456. Prior results do not guarantee a similar outcome. Jenner & Block London LLP, an affiliate of Jenner & Block LLP, is a limited liability partnership established under the laws of the State of Delaware, USA and is authorised and regulated by the Solicitors Regulation Authority with SRA number 615729. Information regarding the data we collect and the rights you have over your data can be found in our Privacy Notice. For further inquiries, please contact dataprotection@jenner.com.
News and Insights
Event
Associate Steven Arango to Speak at the Veterans' Legal Career Fair
On September 18, Associate Steven Arango will speak on a panel at the Veterans' Legal Career Fair (VLCF), the only legal career fair in the United States dedicated to veterans, active-duty service members, and military spouses.
September 18, 2026
Publications
In American Banker, Partner Laurel Loomis Rimon Weighs in on OCC's Handling of Fintech Bank Charter Applications
Partner Laurel Loomis Rimon spoke with American Banker about how the Office of the Comptroller of the Currency is approaching bank charter applications from fintechs, amid a growing wave of companies seeking charters from federal regulators.
August 18, 2026
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Partner David Greenwald to Speak at PLI Program on Privilege and AI
On August 17, David Greenwald will speak at "Fitting New “Tech” Into the Attorney-Client Privilege and Work Product Protection," a virtual program hosted by the Practising Law Institute (PLI).
August 17, 2026
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Special Counsel Kimberly Cook Featured in FCBA Member Spotlight
The Federal Communications Bar Association (FCBA) featured Kimberly Cook in its Member Spotlight series.
August 13, 2026
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Three Jenner & Block Partners Named to Crain's New York Business' 2026 Notable Leaders in Accounting, Consulting & Law List
Crain's New York Business recognized Jenner & Block Partners Anthony Barkow, Alison Stein, and Damian Williams among its 2026 Notable Leaders in Accounting, Consulting & Law.
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In Law360, Trump Debarment Threat Calls for Targeted Defense Plan
Partners Ashley Callen and David Robbins authored an article for Law360 examining how entities should respond when suspension or debarment is threatened directly by the president, rather than initiated through the usual agency-driven process.
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