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Atsumi & Sakai
Chie Kasahara
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Chie Kasahara

Senior Partner

Main Practices
Corporate Governance / Shareholder Meetings / General Corporate Legal Affairs / Establishing Companies and Businesses for Startups / Broadcasting / Advertising and Marketing / Music / Film / E-sports / Brand/Rights Protection / IT, Telecommunications, and Radio / Data Protection, Privacy, and Cybersecurity / Pharmaceuticals, Cosmetics, and Medical Devices / Health Foods and Supplements / Digital Health / Biotechnology / Medical IP and Licensing / Food, Beverages, and Alcohol / Subcontracting and Misrepresentations / Intellectual Property Transactions / Intellectual Property Registration / Brand Protection and Counterfeiting / Unfair Competition and Protection of Business Data / IT Systems and Services / Personal Information, Privacy/Big Data / Luxury, Fashion & Lifestyle Brand
Languages
Japanese / English
Office
Tokyo
TEL
+81-(0)3-5501-2438
Contact

Overview

Publications & Seminars

Awards

Admitted

Japan (2000)

Bar Association

Dai-ichi Tokyo Bar Association

Education

Hokkaido University (LL.B., 1993)
Hokkaido University, School of Law (LL.M., 1996)
Legal Training and Research Institute of the Supreme Court of Japan

Background

Hayabusa Kokusai Law Offices (2000–2006)
Greenberg Traurig LLP (New York) (2006–2007)
Partner, Hayabusa Asuka Law Offices (2007–2008)

Member

Director of Entertainment Lawyers Network Japan

Publications

  • Legal Practice of Overseas Expansion and Cross-Border Alliances in the Content Industry (Japan Edition),  Law Press China (2025) [Co-author]

  • “Japan: Trends & Developments,” Chambers Global Practice Guides - Advertising & Marketing 2024, Chambers and Partners (2024) 

  • Panoramic - Pharma & Medical Device Regulation 2025, Japan chapter, Law Business Research Ltd. (2024) [Co-author]

  • Getting the Deal Through - Pharma & Medical Device Regulation 2024, Japan Chapter, Law Business Research Ltd. (2023) [Co-author]

  • “Japan: Trends & Developments,” Chambers Global Practice Guides - Advertising & Marketing 2023, Chambers and Partners (2023) 

  • Getting the Deal Through - Pharma & Medical Device Regulation 2023, Japan Chapter, Law Business Research Ltd. (2022) [Co-author]

  • “Japan: Trends & Developments,” Chambers Global Practice Guides - Advertising & Marketing 2022, Chambers and Partners (2022) [Co-author]

  • Getting the Deal Through - Advertising and Marketing 2021, Japan Chapter, Law Business Research Ltd. (2021)
  • Getting the Deal Through - Telecoms and Media 2020, Japan Chapter, Law Business Research Ltd. (2020)
  • Getting the Deal Through - Advertising and Marketing 2020, Japan Chapter, Law Business Research Ltd. (2020)
  • Q&As about Entertainment Law 2nd Edition: Rights, Contracts, Troubleshooting, Related Laws and Overseas Transactions, Civil Law Institute (2019) [Co-author]
  • Getting the Deal Through - Advertising and Marketing 2019, Japan Chapter, Law Business Research Ltd. (2019)
  • Getting the Deal Through - Advertising and Marketing 2019, Japan Chapter, Law Business Research Ltd. (2019)
  • "Publication of clinical trial information and the disclosure of conflict of interests in research in five countries - National laws and regulations in UK, France, Germany, Netherlands, and the US -," Journal of Clinical Therapeutics & Medicines No.34 No.6 (2018) [Co-author]
  • Getting the Deal Through - Telecoms and Media 2018, Japan Chapter, Law Business Research Ltd. (2018)
  • Getting the Deal Through - Advertising and Marketing 2018, Japan Chapter, Law Business Research Ltd. (2018)
  • The Intellectual Property Review - Seventh Edition, Japan Chapter, Law Business Research Ltd (2018) [Co-author]
  • "From Characters to Biotechnology and Optical Components," Law & Technology No.78, Civil Law Institute (2017)
  • Getting the Deal Through - Telecoms and Media 2017, Japan Chapter, Law Business Research Ltd. (2017)
  • Getting the Deal Through - Advertising and Marketing 2017, Japan Chapter, Law Business Research Ltd. (2017)
  • Q&As about Entertainment Law: Rights, Contracts, Troubleshooting, Related Laws and Overseas Transactions, Civil Law Institute (2017) [Co-author]
  • The Intellectual Property Review - Sixth Edition, Japan Chapter, Law Business Research Ltd (2017) [Co-author]
  • A Practical Guide to E-Discovery in Asia, Japan Chapter, LexisNexis Singapore (June,  2017) [Co-author]
  • The International Comparative Legal Guide to: Copyright 2017, Japan Chapter, Global Legal Group (2016) [Co-author]
  • A Brief Summary of the Companies Act, Vol. 6: Drafting and Amending Company By-laws, SHOJIHOMU Co., Ltd.（2016）[Co-author]
  • The Intellectual Property Review - Fifth Edition, Japan Chapter, Law Business Research Ltd (2016) [Co-author]
  • Data Protection & Privacy (3rd Edition), Japan Chapter, Thomson Reuters (2016) [Co-author]
  • Getting the Deal Through - Advertising and Marketing 2016, Japan Chapter, Law Business Research Ltd. (2016)
  • Getting the Deal Through - Telecoms and Media 2016, Japan Chapter, Law Business Research Ltd. (2016)
  • The International Comparative Legal Guide to: Copyright 2016, Japan Chapter, Global Legal Group (2015) [Co-author]
  • Getting the Deal Through - Advertising and Marketing 2015, Japan Chapter, Law Business Research Ltd. (2015)
  • Getting the Deal Through - Telecoms and Media 2015, Japan Chapter, Law Business Research Ltd. (2015)
  • Amendment to Japan's Companies Act and Its Ordinance for Enforcement Enacted in May 2015: a Line-by-line Commentary on the Main Provisions, SHINNIPPON-HOKI PUBLISHING CO., LTD. (2014) [Co-author and co-editor]
  • Data Protection & Privacy (2nd Edition), Japan Chapter, Thomson Reuters (2014)
  • Getting the Deal Through - Advertising and Marketing 2014, Japan Chapter, Law Business Research Ltd. (2014)
  • "Practical Tips for Building a Compliance System for Group Companies at Home and Abroad", JFTC MONTHLY, Japan Foreign Trade Council, Inc. (April, 2014)
  • Getting the Deal Through - Right of Publicity 2013, Japan Chapter, Law Business Research Ltd. (2012)
  • Getting the Deal Through - Copyright 2012, Japan Chapter, Law Business Research Ltd. (2012)
  • Getting the Deal Through - Right of Publicity 2012, Japan Chapter, Law Business Research Ltd. (2011)
  • IP Client Strategies in the Asia-Pacific: Advice for handling IP matters in Japan, Japan chapter, Thomson Reuters/ Aspatore (2011)
  • Getting the Deal Through - Copyright 2011, Japan Chapter, Law Business Research Ltd. (2011)
  • "Counterfeit Damages and Regulatory Laws – In an Age of Quality Improvement and Online Sales", The Lawyers, ILS Publications, Inc. (July 2011) [Co-author]
  • Getting the Deal Through — Right of Publicity 2011, Japan Chapter, Law Business Research Ltd. (2011)
  • "New Issues and Solutions in Relation to IT and the Internet - Issues Arising from Technological Innovation and Diversification of Information Terminals - " The Lawyers, ILS Publications, Inc. (October, 2010) [Co-author]
  • Getting the Deal Through — Copyright 2010, Japan Chapter, Law Business Research Ltd. (2010)
  • Corporate Law and the Internet - Insight from Recent Legal Cases, Gyosei (2010) [Co-author]
  • Corporate Scandals and their Countermeasures, Seibunsha (2009) [Co-author]
  • M&A/Company Reorganization Practices, Chuokeizai-Sha (2006 – 2007) [Co-author]
  • New Company Law A2Z—Closed Company Practices, Dai-ichi Hoki (2006) [Co-author]
  • Legal Practices of Tokurei Yugen Kaisha under the New Company Law, Shinnippon-Hoki Publishing (2006) [Co-author]
  • Practical Commentary for Ministerial Orders Concerning Company Law, Seibunsha (2006) [Co-author]
  • Q&A Key Points of the New Company Law, Shinnippon-Hoki Publishing (2005) [Co-author]
  • Legal Dispute Settlement Tax Practices, Second Edition, Minjihokenkyukai (2003) [Co-author]

Web Articles

Newsletters

Seminars

  • "Asia Pacific Social Media Year in Review," hosted by Global Advertising Lawyers Alliance (GALA), February 27, 2020. 
  • "Healthcare: Issues and Latest Trends in the Healthcare Industry, and Entry into the Healthcare Industry by Non-medical Operators," at a syposium "Insights into the New Era of Industrial Innovation and related Legal Issues," hosted by Westlaw Japan K.K. and Jiji Press, Ltd., January 30, 2020
  • "Google's Right to be Forgotten – Commentary on the Supreme Court’s Ruling," at the 14th symposium entitled "Entertainment and Human Rights," hosted by the Entertainment Lawyers Network, May 27, 2017
  • "Advertising Issues from an IP Law and Compliance Perspective, for In-house Legal Professionals: Outline of the "Act against Unjustifiable Premiums and Misleading Presentations" and Other Advertising Laws and Regulations and Relevance to Risk Management," hosted by Keiei Chousa Kenkyukai, January 19, 2017
  • "The Law and Business of Sporting Events: Things to Understand in the Lead up to the Tokyo　Olympics," hosted by Keiei Chousa Kenkyukai, January 29, 2015
  • Panelist at a "Panel Discussion on the Winny Supreme Court Ruling and the Intellectual Property High Court Ruling on Compensation for Private Visual Recording" at the symposium entitled "The future of content protections and ways to return value to rights holders as online content continues to grow in volume - learning from the Winny Supreme Court ruling and the Intellectual Property High Court ruling on compensation for private visual recording", hosted by the Entertainment Lawyers' Network, May 25, 2013.
  • "'Barriers in relation to Secondary Use of Overseas' Content, and the Handling of Related Rights' - Legal Practice and Latest Trends in Japan", hosted by Japan Research Institute for New Systems of Society, August 29, 2011
  • "The Convergence of Broadcasting and Communications: Emerging Technologies and Legal Implications", hosted by the Entertainment Lawyers' Network, May 29, 2010