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Home > Lawyers > Partners > Akihisa Shiozaki

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Akihisa Shiozaki


Akihisa Shiozaki is widely recognized for his expertise in corporate crisis management, including regulatory investigations, white collar defense, product recall, labor/employment disputes, import/export control, cyber security, media interaction and various corporate governance issues, especially those with multi-jurisdictional or parallel civil and criminal components. In recent years, he has advised both domestic and foreign clients in resolving a number of the most high profile corporate crises cases relating to Japan, including the LIBOR/TIBOR manipulation investigation, FX manipulation investigation, global product recall by a Japan auto-parts manufacturer, international trade secret theft in the semiconductor industry, government investigations against a global pharmaceutical corporation operating in Japan, and his representation of the former CEO of Olympus Corporation who brought light to the company's recent accounting scandal. He is recognized by Legal 500 as a Leading Individual in the field of Risk Management and Investigations. In 2017, Akihisa was awarded the Compliance / Investigations Lawyer of the Year at the Asian Legal Awards hosted by The American Lawyer, in association with The Asian Lawyer, China Law & Practice and Legal Week.

Akihisa worked in the Prime Minister’s office as senior policy advisor from 2006 to 2007 and is knowledgeable in Japanese regulations /rules and governmental procedures, as well as having rich experience dealing with the media. He also serves as the vice-chairman of the Anti-Yakuza Committee at the Daiichi Tokyo Bar Association and has authored many related publications. He graduated from the University of Tokyo (LL.B.), holds an M.A. in international policy from Stanford University, and completed his MBA at the Wharton School of the University of Pennsylvania where he served as class president.

Education/Professional Experience


The University of Tokyo (LL.B.)


Stanford University (M.A. in International Policy Studies)


Nagashima Ohno & Tsunematsu


Office of the Prime Minister


The Wharton School of the University of Pennsylvania (MBA)


Partner, Nagashima Ohno & Tsunematsu


September 19, 2019


Crisis & Risk Management in Japan (Panel Discussion)

October 26, 2017

NO&T Seminars

Practical Considerations on Japanese-style Plea Bargains

July 7, 2017

NO&T Seminars

Trends in FCPA and Others U.S. Corporate Criminal Enforcement: The Risks for Japanese Companies

March 6, 2017

NO&T Seminars

ADVANCE Corporate Law Seminar - Pioneering the Frontier in Corporate Law
2016 Part 12 Risk and Crisis Management Seminar "Latest Risk and Corporate Crisis Management Practices - Theory and Practice of the New Plea Bargaining System and Crisis Management in Overseas Subsidiaries"

February 8, 2017


Policy and Government (Panel Disscussion)

November 15, 2016


Representing the CEO of Olympus Corporation in a Japanese scandal under a global microscope.

April 8, 2016

NO&T Seminars

ADVANCE Corporate Law Seminar - Pioneering the Frontier in Corporate Law
2016 Part 1 Risk and Crisis Management Seminar
"Corporate Risk and Crisis Management Transformed by Crisis Management Principles"

February 18, 2016


The Art of Corporate Crisis Management

July 17, 2015

NO&T Seminars

ADVANCE Corporate Law Seminar - Pioneering the Frontier in Corporate Law
Part 1 Risk and Crisis Management Seminar
"Preparing for and Addressing Serious Corporate Scandals and Crises that Shake Industry and Society"

June 16, 2015


Corporate Governance: Reform or Box Ticking?

November 5, 2014

NO&T Seminars

Dealing With Corporate Wrongdoings and Crisis Management Seminar 2014

October 23, 2014


The unusual suspects: the in-house counsel, compliance officer and external counsel as criminal accused

October 21, 2014


Eyes wide shut: big brands and the good life, but for whom?

October 15, 2014


Personal Data and Trade Secret Protection in Japan: How to Counter Information/Data Crises

November 7, 2013


Can Japan Change? - From Entrepreneurs' Perspective - (Panel discussion)

October 23, 2013

NO&T Seminars

Corporate Risk and Crisis Management Seminar

October 8, 2013


Recent developments in insider trading regulations (Kensuke Suzuki)
Introduction to corporate governance, risk management and compliance in Japan (Akihisa Shiozaki)

May 9, 2013


Crisis Management: How to deal with organized crime in Japan & related corporate fraud cases

April 19, 2013


Inside the Olympus Scandal

February 27, 2013


Crisis is the new normal (Panel discussion)


April, 2017


New plea bargaining system: a new compliance risk for companies with operations in Japan? (co-author)

International Law Office Online Newsletter “White Collar Crime-Japan”

March, 2017


Japan’s New Plea Bargaining System: A Tough New Compliance Risk for Companies with Japan Operations? (co-author)

NO&T Japan Legal Update No.9 (March, 2017)

November, 2016


The JPX principles: Japan’s new road map for companies conducting internal investigations (co-author)

NO&T Japan Legal Update No.7 (November, 2016)

August, 2016


A world first? New guidance issued for listed companies conducting internal investigations  (co-author)

International Law Office Online Newsletter “White Collar Crime-Japan”

November, 2015


Recent changes to Japan's whistleblower law regime (co-author)

NO&T Japan Legal Update No.3 (November, 2015)

November, 2015


Maintaining privilege in the face of regulatory investigations (co-author)

International Law Office Online Newsletter “White Collar Crime-Japan”

August, 2015


The Olympus effect? Recent changes to whistleblower law regime (co-author)

International Law Office Online Newsletter “White Collar Crime-Japan”

July, 2015


"Best Practices of Risk and Crisis Management–Recent Practice Lessons from Actual Cases" (Associate Editor, Co-author)

April, 2015


An Overview of Food Labeling Regulations after Enactment of the Food Labeling Act and Amendment of the Act against Unjustifiable Premiums and Misleading Representations (Co-author)

NO&T Compliance Legal Update No.7 (April, 2015)

September, 2013


The Democratic Party of Japan in Power (co-author)


April, 2013


Navigating reporting orders (Co-author)

The 2013 Guide to Japan 11th Edition A Supplement to International Financial Law Review, April 2013


January 17, 2020


NO&T receives high evaluation in The Legal 500 Asia Pacific 2020

April 4, 2019


High evaluation received in the 2020 Edition of "The Best Lawyers in Japan"

January 17, 2019


NO&T receives high evaluation in The Legal 500 Asia Pacific 2019

February 22, 2017


Akihisa Shiozaki receives Compliance/Investigations Lawyer of the Year award at The Asia Legal Awards 2017

December 28, 2015


Nikkei's "Best Performing Lawyers 2015"