Masahisa Ikeda

Capital Markets, Corporate & Securities, Antitrust & Competition

Tokyo +81 3 4563 1405

Masahisa.Ikeda@mayerbrown.com

"Masahisa Ikeda has a wealth of experience and gives us appropriate advice on securities-related matters and other issues ….. he’s a really reliable lawyer"

Chambers Asia-Pacific

Übersicht

Masahisa Ikeda advises and represents global companies and government agencies, including the Ministry of Foreign Affairs of Japan. Clients look to Masahisa to advice on a wide variety of matters, including cross-border acquisitions, financings and disputes.

Masahisa also represents numerous corporations on various government investigations, and regulatory and compliance matters, including investigations relating to securities law, antitrust law and FCPA, before the U.S. Department of Justice, the U.S. Securities and Exchange Commission and the European Commission.

Erfahrung

Prior to Mayer Brown, Masahisa advised:

Nippon Telephone and Telegraph Corporation in a $16.5 billion tender offer for shares of common stock of NTT DATA Group Corporation.
Sumitomo Rubber Industries., Ltd. on its acquisition of the DUNLOP brand from The Goodyear Tire and Rubber Company in Europe, North America, and Oceania.
Kirin Holdings Company, Limited as U.S. counsel in its $1.40 billion tender offer for FANCL Corporation.
Ajinomoto Co. Inc. in its acquisition of Forge Biologics Holdings LLC, through a reverse triangular merger transaction valued at approximately $554 million.
NTT DOCOMO, INC. in its tender offer at approximately $316 million to acquire common shares of INTAGE HOLDINGS, Inc.
Coca-Cola Bottlers Japan Inc., a consolidated subsidiary of Coca-Cola Bottlers Japan Holdings, in its entry into a joint venture with Accenture to consolidate the administrative, back-office and support services of Coca-Cola Bottlers Japan Group.

LINE Corporation in connection with its business integration with Z Holdings Corporation, which involved among other steps a joint tender offer by SoftBank Co., Ltd. and NAVER Corporation to acquire all of LINE’s outstanding common stock (including American Depositary Shares), stock options and convertible bonds.
Toyota Motor Corporation
- in a $1.5 billion SEC-registered offering of sustainability bonds(2025).
- in a $1.5 billion SEC-registered offering of sustainability bonds(2023).
- in a $2.75 billion SEC-registered offering of sustainability bonds.
- in a $1.5 billion SEC-registered offering of senior notes.
Mizuho Bank, Ltd. as a selling shareholder in a U.S. $2.6 billion Rule 144A/Regulation S international offering of common stock of Recruit Holdings Co., Ltd.
Sawai Pharmaceutical Co., Ltd. regarding a registration with the U.S. Securities and Exchange Commission on Form F-4 in connection with the sole share transfer to establish Sawai Group Holdings Co., Ltd. as a holding company.
Toyota Motor Corporation regarding a registration with the U.S. Securities and Exchange Commission on Form F-4 in connection with the triangular share exchange to make Misawa Homes Co., Ltd. a wholly owned subsidiary.
Japan Exchange Group, Inc. in a U.S. $48.4 million tender offer for shares of common stock and non-voting stock of Tokyo Commodity Exchange, Inc.
Danone Probiotics Pte. Ltd. in its capacity as the selling shareholder in a US$1.3 billion Rule 144A/Reg S global offering of common stock of YAKULT Honsha Co., Ltd.
Alps Electric Co., Ltd., a Japanese manufacturer of electronic components, and Alpine Electronics, Inc., a Japanese manufacturer of car audio systems, in connection with their$794.7 million business integration involving a registration on Form F-4 with the SEC.
Toyota Motor Corporation involving a registration with the U.S. Securities and Exchange Commission on Form F-4 in connection with its share exchange with Daihatsu Motor Co., Ltd. to make Daihatsu a wholly owned subsidiary.
JX Holdings, Inc., a Japanese petroleum and metals company, in connection with its U.S.$16.0 billion business integration with Tonen General Sekiyu K.K. involving a registration on Form F-4 with the SEC.
Minebea Co., Ltd., a Japanese producer of machinery components and electronics devices, and Mitsumi Electric Co., Ltd., a Japanese manufacturer of electronic components for data communication devices, automobiles and consumer electronics, in connection with their U.S. $4.1 billion business integration involving a registration on Form F-4 with the SEC.
Mitsubishi Corporation in a U.S. $1.4 billion tender offer for shares of common stock of Lawson, Inc.
Maeda Corporation involving the filing of a Form CB in connection with its $3.3 billion joint share transfer with Maeda Road Construction and Maeda Seisakusho to establish a joint holding company.
Matsumotokiyoshi Holdings Co. Ltd. involving the filing of a Form CB in connection with its $2.1 billion share exchange with cocokara fine Inc.

Veröffentlichungen und Präsentationen

News
alle News anzeigen
- Pressemitteilung
  Mayer Brown expands Tokyo office and Global Corporate & Securities practice with the addition of partner Masahisa Ikeda
  Februar 19. 2026

Auszeichnungen

Leading Lawyer - Capital Markets: International: US Law in Japan - Chambers Asia-Pacific
Leading Lawyer - Corporate/M&A: International in Japan - Chambers Asia-Pacific
Hall of Fame - Capital markets: International firms and joint ventures in Japan - The Legal 500 Asia-Pacific
Recommended Lawyer – Corporate and M&A in Japan - The Legal 500 Asia-Pacific
Recommended Lawyer - Antitrust and Competition in Japan - The Legal 500 Asia-Pacific
The A List: Japan’s Top Lawyers - Asia Business Law Journal

Ausbildung

Harvard Law School, JD, cum laude
University of Tokyo, LLB
Harvard University, AB, magna cum laude

Zulassungen

New York
Japan (Gaikokuho Jimu Bengoshi)

Sprachen

Englisch
Japanisch
Französisch

Mitgliedschaften

Board Member, the Tokyo Foundation for Policy Research
Auditor, the International House of Japan
Research Collaborator, the Japan Fair Trade Commission, Competition Policy Research Center
Asia Pacific Director, the Trilateral Commission
Harvard Law School Association, Executive Committee
Founder and Council, UWC ISAK Japan

Masahisa Ikeda

Übersicht

Erfahrung

verwandte Beratungsfelder und Industrien

Beratungsfelder

Industrien