パートナー

マネージング・パートナー

池田祐久

Capital Markets, Corporate & Securities, Antitrust & Competition

東京 +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

概要

主要グローバル企業や政府機関を代理し、クロスボーダーM&A、資金調達、紛争解決など多岐にわたって助言を提供しています。

また、米国司法省、米国証券取引委員会、欧州委員会における証券法、独占禁止法、FCPA（海外腐敗行為防止法）に関連する調査を含む、様々な政府調査、規制およびコンプライアンス問題について、多くの企業を代理しています。

経験

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.

出版物

ニュース
全てのニュースを見る
- メディア掲載
  Mayer Brown appoints new head of Tokyo office
  2026年2月23日
- メディア掲載
  Mayer Brown Appoints Former A&O Shearman Regional Leader As New Japan Head
  2026年2月19日

受賞

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

学歴

ハーバード大学, JD, cum laude
東京大学, 法学士
ハーバード大学ケネディ・スクール卒業, AB, magna cum laude

登録

ニューヨーク州弁護士
外国法事務弁護士

使用言語

英語
日本語
フランス語

社会活動

東京財団　理事
国際文化会館　監事
公正取引委員会　競争政策研究センター　研究協力者
三極委員会（Trilateral Commission）アジア太平洋委員会ディレクター
ハーバード・ロースクール協会、エグゼクティブコミッティ
ユナイテッド・ワールド・カレッジISAKジャパン　ファウンダー及びカウンシル

池田祐久

概要

経験

関連サービスと産業

業務分野

産業分野

出版物

ニュース

Mayer Brown appoints new head of Tokyo office

Mayer Brown Appoints Former A&O Shearman Regional Leader As New Japan Head

受賞

学歴

登録

使用言語

社会活動

池田 祐久

概要

経験

関連サービスと産業

業務分野

産業分野

出版物

ニュース

Mayer Brown appoints new head of Tokyo office

Mayer Brown Appoints Former A&O Shearman Regional Leader As New Japan Head

受賞

学歴

登録

使用言語

社会活動

池田祐久