Kei Umebayashi > Nishimura & Asahi > Tokyo, Japan > Lawyer Profile

Nishimura & Asahi Offices

Nishimura & Asahi
OTEMON TOWER, 1-1-2 OTEMACHI
CHIYODA-KU
TOKYO 100-8124
Japan
Visit website 81 3 6250 6200 81 3 6250 7200

Kei Umebayashi

Kei Umebayashi photo
+81-3-6250-6475 k.umebayashi@nishimura.com View profile

Work Department

Risk Management and Investigations practice

Position

Partner, Tokyo

Career

・2022-　Professor, University of Tokyo Graduate Schools for Law and Politics
・2020-　Outside Auditor, ITOHAM YONEKYU HOLDINGS INC.
・2018-2019　Member of Task Force organized in the Railway Bureau of MLIT
・2017-2018　Member of Task Force (final inspection issue) organized in the Road Transport Bureau of MLIT
・2016-2017　Member of Task Force (fuel consumption issue) organized in the Road Transport Bureau of MLIT
・2014-2021　Part-time professor of Keio University Law School
・2014-2021　Member of the Independent Committee of Japan Sport Council
・2011-2012　Counselor of the Ministry of Internal Affairs and Communications
・2010　Partner of Nishimura & Asahi
・2007　Resigned from Public Prosecutor, Registered as an Attorney-at-Law, Joined Nishimura & Asahi
・2005-2007　Executive Assistant to Deputy Chief Cabinet Secretary
・2004-2005　Public Prosecutor, Secretarial Division, Ministry of Justice
・2003-2004　Public Prosecutor, Chiba District Public Prosecutors’ Office
・2002-2003　Public Prosecutor, Criminal Affairs Bureau of the Ministry of Justice
・1999-2002　First Secretary, Japanese Embassy, U.K.
・1998-1999　Public Prosecutor, Criminal Affairs Bureau of the Ministry of Justice
・1991-1997　Public Prosecutor, Tokyo, Fukuoka, Yokohama and Shizuoka District Public Prosecutors’ Offices

Kei Umebayashi is a partner at Nishimura & Asahi and previously worked at the Special Investigative Section of the Tokyo District Public Prosecutors Office, where he obtained extensive experience and know-how in criminal investigations.
He is expert at gathering evidence and conducting hearings.
He mainly handles cases in which the executives or officers of a company leaked, intentionally or accidentally, the company’s confidential information, including customer data and business secrets.
He deals with matters conducted by Japanese authorities, including the Securities and Exchange Surveillance Commission (SESC) and the Fair Trade Commission.
Additionally, he gives valuable advice concerning a variety of other matters, such as insider trading, antitrust law, leniency applications under antitrust law, and inquiries by the US Department of Justice, European Commission and other foreign authorities when a company is targeted by them due to alleged violations of antitrust laws.

Languages

Japanese, English

Memberships

2007 | Admitted in Japan

Education

1989 | The University of Tokyo (LL.B.)

Lawyer Rankings

Japan > Risk management and investigations: Independent local firms

(Leading individuals: Bengoshi)

Kei Umebayashi – Nishimura & Asahi

The team at Nishimura & Asahi fields a diverse array of legal professionals, including former prosecutors, high-tech crime specialists, government officials, private attorneys, and international legal experts, and delivers comprehensive advice that spans the full spectrum of domestic and cross-border crisis management. The department excels in handling corporate crisis scenarios involving fraud and white-collar crime elements, and instances of misconduct. Leading the practice is Hiroshi Kimeda, whose extensive experience spans corporate scandals involving window-dressing, financial statement misrepresentation, antitrust violations, bribery, and regulatory breaches. Other members of the team include Kei Umebayashi, who is highly skilled in criminal investigations; Kaku Hirao, who handles misconduct issues, regulatory infractions, and emergency response matters; and Tomoyuki Numata, who specialises in issues related to international cartels, unilateral anticompetitive practices, and merger filings.

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