Atsumi & Sakai

(The following information was supplied by the firm)

Firm Overview:
■ Full-service independent Japanese law firm
■ Frequently recognised as a ‘top tier’ firm by independent legal commentators
■ First Japanese law firm to create a foreign law joint venture
■ Foreign partners and other non-Japanese lawyers with real experience in leading US and international law firms
■ Market leader in diversity and employee satisfaction
■ Only independent Japanese law firm with offices in London and New York, an affiliated office in Frankfurt and an affiliated law firm in Vietnam

The Firm:
Atsumi & Sakai is a multi-award-winning, independent Tokyo law firm, and one of the ten largest independent full-service law firms in Japan. The firm was the first Japanese law firm to create a foreign law joint venture, which enables it to admit foreign partners and so offer its clients the quality of service that the modern international business community demands. Expanding from its highly regarded finance practice, the firm now acts for a wide range of international and domestic companies, banks, financial institutions and other businesses, offering a comprehensive range of legal expertise.

Managing Partners: Mr Hiroo Atsumi
Number of partners: 83
Number of lawyers: 180+
Languages: Japanese, English, German, Chinese, Korean, Hindi, Marathi, Russian, Vietnamese

International Practice:
Atsumi & Sakai has an outward-looking approach to its international practice, and has a number of foreign partners, consultants and attorneys with extensive experience at leading international law firms, so offering its clients the benefit of a combination of Japanese law expertise and real international experience. Atsumi & Sakai is the only independent Japanese law firm with offices in London and New York, an affiliated office in Frankfurt and an affiliated law firm in Vietnam. Over half of the firm’s work now includes an international element.

In addition to lawyers admitted in Japan (including Japanese lawyers who are admitted and maintaining qualification to practice in California, New York, and England and Wales), the firm includes foreign lawyers registered in Japan to advise on the laws of the US States of New York and California, the People’s Republic of China, India, England and Wales, the State of Queensland, Australia, United States and Australian Federal laws, and the laws of the Federal Republic of Germany (also in collaboration with Janssen Foreign Law Office).

Innovation & Diversity:
The firm constantly seeks to anticipate its clients’ needs for new legal services, most recently those arising from rapid technological developments in the financial services industry, and strives to provide high-quality and cost-effective services and solutions to support start-up companies. The firm also offers a flexible alternative fee arrangement tailored to meet the specific needs and goals of each client company.

Atsumi & Sakai takes a proactive approach to diversity, with around 25% of all lawyers being women and 14% non-Japanese, and encourages its lawyers to maintain a good work/life balance, all of which contributed to the firm being recognised as Japan’s leading law firm for employee satisfaction.

Main Areas of Practice:
■ Antitrust/Competition
■ Banking & Finance
■ Capital Markets/Securitisation, Structured Finance
■ Construction/Infrastructure
■ Corporate/M&A
■ Corporate Investigations/Anti-Corruption Data Protection & Privacy
■ Dispute Resolution, Domestic & CrossBorder Litigation & Arbitration
■ Energy (including Oil & Gas, Renewable Energy)
■ Financial Services Regulation
■ Funds Regulation
■ Information Technology (AI/IoT)
■ Insolvency/Corporate Restructuring
■ Insurance
■ Intellectual Property
■ International Trade
■ Investment Funds/Joint Ventures
■ Labour & Employment
■ Life Sciences/Medical & Pharmaceutical Business
■ PFI/PPP
■ Private Equity & Venture Capital Projects/Project Finance
■ Real Estate (Acquisition, Financing, Development)
■ Risk Management
■ Securities Regulation
■ Shipping/Aviation
■ Sports/Entertainment
■ Tax
■ Technology, Media & Telecommunications
■ White-Collar Crime/Criminal Defence

Key Contacts

Firm Rankings

Banking & Finance
Band 1

Capital Markets
Band 2

8.0

Capital Markets: Debt
Band 3

7.0

Capital markets: Equity
Band 3

6.0

Capital Markets: Securitisation
Band 2

8.0

Capital Markets: Structured Finance
Band 1

Competition/Antitrust
Band 3

7.0

Corporate Investigations
Band 2

8.0

Corporate/M&A
Band 3

7.0

Dispute Resolution
Band 3

6.0

FinTech
Band 1

Funds
Band 2

8.0

Insurance
Band 3

6.0

IP
Band 2

8.0

Labour & Employment
Band 3

7.0

Projects
Band 1

Real Estate
Band 2

8.5

Restructuring & Insolvency
Band 2

8.0

Shipping
Band 2

8.0

Tax
Band 3

6.0

TMT
Band 1

Articles

Basic Law for Promoting Responsible AI

In January 2023, the Liberal Democratic Party of Japan launched a project team (“AIPT”) on the evolution and implementation of AI, led by Masaki Taira, a member of the House of Representatives, to consider Japan’s AI strategy and policy recommendations. Based on these considerations, AIPT member’s a private proposal for new legal governance in our […]

Issues surrounding venture capital”

The Financial Services Agency of Japan recently published a “Report of the Working Group on Capital Market Regulations and Asset Management Task Force of the Financial System Council” (the “Report”), which describes a strategy for improving the capabilities of asset management companies who are playing important roles in managing financial assets and making returns for […]

Non-Liquidity Discounts in Stock Price Calculation Using the Income Approach

The concept of calculating the price of stocks without a trading market can be broadly divided into (1) the income approach, which is calculated from what the issuer will generate in the future (earnings, cash flows, dividends, etc.), (2) the market approach, which is calculated from similar stock transactions, and (3) the net asset approach, […]

Overview of the various private fund schemes for real estate investment in Japan

As international business continues to develop and grow, we are seeing increased interest from foreign investors and companies targeting investments in the Japanese real estate market. When investing in the Japanese real estate market, foreign companies need to understand the structure of real estate funds available. While the real estate fund business in Japan is […]

Overview of the Report on Tender Offer Rules and Large Shareholding Reporting Rules

Overview of the Report of the Working Group on Tender Offer Rules and Large Shareholding Reporting Rules of the Financial System Council The Financial System Council made a decision to review the rules of tender offers and large shareholding reporting on March 2, 2023. Subsequently, the Working Group on Tender Offer Rules and Large Shareholding […]

“Methods of Dispute Resolution in Taiwan”

1.     Litigation system in Taiwan In Taiwan, different litigation systems apply depending on the nature of a particular case. ①     Civil/Criminal Litigation A three-tier court system1, where cases are heard by the District Courts, High Court (and its branches), and Supreme Court, is used for civil and criminal case. ②     Administrative Litigation A two-tier court system2, where cases […]

”Taiwan’s Personal Data Protection PDPA”

1.     Taiwan Practice Group Introduction In February 2023, Atsumi & Sakai established a Taiwan Practice Group (the “PG”). The PG plans to regularly publish a newsletter featuring information that we believe will be useful for inbound and outbound matters between Taiwan and Japan. The first issue already was published in English and Chinese (traditional) for overseas […]

Revisions to the Basic Hydrogen Strategy

This describes recent developments in Japan to encourage the development and use of hydrogen as an energy source, including a summary of the revisions announced on June 6, 2023 to the Basic Hydrogen Strategy (the “New Basic Hydrogen Strategy”) compared to the previous hydrogen strategies, together with a description of some trends we are seeing […]

Responsible AI Deployment Policy Recommendations

Towards Responsible AI Deployment Policy Recommendations for the Hiroshima AI Process Takafumi Ochiai, Partner, contributed his feedback, has been published on the website of the Institute for Future Initiatives, The University of Tokyo. Executive summary Alongside the proliferation of artificial intelligence (AI) technologies, particularly machine learning, generative AI -capable of producing diverse content- has gained […]

Crisis Management for Bribery in Vietnam

Governments have adopted the Sustainable Development Goals(SDGs) has set a clear goal of “significantly reducing corruption and bribery in all its forms” (Target 16.5)., Tightening regulations against overseas bribery of enterprises. Corruption is structured in some emerging countries, including Vietnam, and if involvement in corruption in those countries is discovered, corporate value may be damaged. […]

New Calculation Method of Damages Introduced to Increase Compensation in Piracy Cases

New Calculation Method of Damages Introduced to Increase Compensation in Piracy Cases – Amendments to Japan’s Copyright Act in 2024 The Act Partially Amending the Copyright Act (hereinafter, the “Amended Copyright Act” and the Copyright Act before the revision the “Current Copyright Act”) was enacted in May 2023 and is expected to come into effect January […]

How have copyright rules for using music changed with the revision? Difference between broadcasting and distribution

table of contents Rules for the use of music in broadcasting Rules for the use of music in Internet distribution Reiwa 3 Revision of the Copyright Act – Facilitation of rights processing for simultaneous distribution Reiwa 5 Revision of the Copyright Act − Facilitation of rights processing even in the case of distribution only Future […]

Efforts to Respect Human Rights in Japan

Efforts to Respect Human Rights in Japan -Publication of the “Reference Material on Practical Approaches for Business Enterprises to Respect Human Rights in Responsible Supply Chains” by the Ministry of Economy, Trade and Industry (April 2023)- Note: For easier understanding, sometimes the translation of the related materials does not fully follow the official translation of […]

Creation of Business Growth Security Interests”: Finance Practice Group

Creation of Business Growth Security Interests The “Report of the Working Group on the System to Support Business Focused Lending Practices” (the “Report”) has been released by the Working Group on the System to Support Business Focused Lending Practices (the “Working Group”) of the Financial System Council. The business growth security interest proposed in the […]

Guidance to generative AI platform and Alerts regarding the use of generative AI services

The first administrative guidance to generative AI platform and Alerts regarding the use of generative AI services issued by PPC The Japanese Personal Information Protection Commission (“PPC”) has issued administrative guidance regarding the protection of personal information by generative AI platforms. On June 1, 2023, the guidance was issued to OpenAI, L.L.C. and openAI OpCo, […]

IP Protection in the Metaverse in Japan

Since 2021, there have been active policy discussions in Japan regarding the protection of content in the metaverse, a virtual three-dimensional space on the Internet where many people can participate simultaneously, control their avatars, act freely, and interact with other participants. These policy discussions assume that the metaverse will expand over time, and that it […]

AI White Paper – Japan’s National Strategy in the New Age of AI

The “Project Team on Evolution and Implementation of AI” of the Liberal Democratic Party of Japan, of which Hiroyuki Sanbe, Partner, is a worikng group member, published a white paper titled “AI White Paper – Japan’s National Strategy in the New Age of AI (Draft)” including recommendations made by Mr. Sanbe’s working group. The full text and […]

Entry into the Kyushu, Japan Market

1. Opening Remarks There has been a recent increase in news of Taiwanese companies entering the Japanese market, such as stories of a major Taiwanese semiconductor manufacturer building a semiconductor manufacturing plant in Japan and a major Taiwanese bank opening its second branch in Japan in Fukuoka. Fukuoka City is among the growing cities in […]

“Battery Storage Subsidies in Japan”

Introduction In the Sixth Strategic Energy Plan, published by the Japanese Government in October 2021, targets are set to (a) achieve carbon neutrality by 2050; (b) increase the share of renewables as part of Japan’s total electricity generation to 36-38% by 2030 (including 19-21% from solar and wind) compared to an 18% share in 2019; and […]

Second Interim Restructuring and Interim Report…

Second Interim Restructuring and Interim Report of the Customer-Oriented Task Force of the Market System Working Group of the Financial Services Council The Financial Services Council’s Market System Working Group Customer-Oriented Task Force (hereinafter referred to as the “Customer-Oriented TF”) The Interim Report of the Customer-Oriented Task Force of the Market System Working Group of […]

“Stablecoins Legislation and Other Legislative Changes Affecting the Japan Fintech Industry”

Introduction 2022 saw the following legislative changes affecting the Fintech industry in Japan: – The first legislation on stablecoins. – Money laundering regulations were tightened through (i) a new form of licence, the “fund transfer transaction analysis business”, which applies to bodies operating money laundering monitoring systems, and (ii) issuers of electronic money, significant amounts […]

Amendments to the Act on the Protection of Personal Information

With the rapid advance of digitalization, companies are now processing personal information outside of Japan. However, many users are not aware that their personal information collected in connection with these services is processed outside of Japan. There are also cases where companies providing such services are not apprised in relation to processing of data under […]

Latest CCS Commercialization Trends in Japan

Latest CCS Commercialization Trends in Japan 1.      Recent CCS trends in Japan In recent years, the Japanese Government has been promoting Carbon Dioxide Capture and Storage (CCS) projects as part of its stated aim to achieve carbon neutrality by 2050. So far there has only been one CCS project in Japan, a demonstration project located in […]

Trends in Syndicated Loans and Related Regulations in Japan

1. Trends in syndicated loans The value of syndicated loans in Japan has been increasing in much the same way as in other countries. For borrowers, syndicated loans are large and flexible funding vehicles, and for lenders it is a business with a controlled credit risk, and which generates a high loan margin income. For […]

Duty to Record Working Hours: Ruling of the German Federal Labour Court

Duty to Record working hours We would like to inform you about the new obligation for employers to record their employee’s working time due to the judgement of the German Federal Labour Court (Bundesarbeitsgericht- “BAG”) of September 13th 2022 Following a ruling of the European Court of Justice (“ECJ”) from May the 14th 2019 , […]

Revision of Management Guarantee

On November 1, Reiwa, the Financial Services Agency (FSA) partially revised the “Comprehensive Guidelines for Small and Medium-sized Financial Institutions and Regional Financial Institutions,” “Comprehensive Guidelines for Major Banks,” “Comprehensive Guidelines for Supervision of Affiliated Financial Institutions,” and “Comprehensive Guidelines for Supervision of Fishery Cooperative Credit Businesses” (hereinafter collectively referred to as the “Revised Bills”). […]

Legal and ethical frameworks of artificial intelligence in the U.S., EU and China

“Legal and ethical frameworks of artificial intelligence in the U.S., EU and China: companies, research institutes and the like in Japan will need to be prepared” “Legal and ethical frameworks of artificial intelligence in the U.S., EU and China: companies, research institutes and the like in Japan will need to be prepared,” authored in Japanese […]

About the Issuer of Employee Rights of a LLC

The Financial Services Agency issued an Ordinance of the Cabinet Office (Cabinet Office Ordinance No. 53 of Reiwa 4, hereinafter referred to as the “Revised Cabinet Ordinance”) that partially amends the Cabinet Office Ordinance on the definitions stipulated in Article 2 of the Financial Instruments and Exchange Act dated September 12, Reiwa. was promulgated. The […]

Proposed Legal and Regulatory Framework for Stablecoins

On March 4,2022, the Financial Services Agency of Japan submitted a bill, amending the Payment Services Act and other laws relating to electronic payments, to the National Diet of Japan. The provisions under this amendment bill include a new regulatory framework for stablecoins overseas, and associated issues such as protection of users. If the bill […]

Key Points and Risk Management for M&A Targeting Vietnamese Companies

Opening Remarks Even during the COVID pandemic, interest in the Vietnamese market has remained strong among Japanese companies. Many Japanese companies considering entering the market are eyeing active cooperation with local companies, with the goal of gaining efficiency by leveraging their existing local networks and licenses. From a Vietnamese viewpoint, many companies are experiencing a […]

Press Releases

Feng Qin Chen has been promoted to the position of Partner

Feng Qin Chen has been promoted to the position of Partner at the Firm as of March 1, 2024.

20 Mar 2024
Atsumi & Sakai is advising the Sponsors of Ramky Group on its USD 100 M investment in Japan’s green technology

Atsumi & Sakai is advising the Sponsors of Ramky Group, a leader in environmental and infrastructure development headquartered in India, on its project to invest USD100 million in SMEs and startups specializing in environmental technologies in Japan. On September 29, 2023 Ramky Group and Kitakyushu City signed an MOU to collaborate and export Kitakyushu’s successful recycling […]

28 Nov 2023
Now a special member of the Financial Data Utilizing Association (FDUA)

Our firm has become a special member of the Financial Data Utilizing Association (FDUA) as of October 1, 2023.

11 Oct 2023
Notice of Atsumi & Sakai London Office Relocation

We are pleased to announce that on October 2, 2023, our London office was relocated to the address below. [New Address] 85 Gresham Street, London EC2V 7NQ, United Kingdom Tel: +44-(0)203-696-6540 Mobile: +44-(0)75-4899-7865 * Telephone and mobile numbers remain the same.

11 Oct 2023
Go Fujimoto and Kenta Nobe, joined as Partners

Go Fujimoto and Kenta Nobe, attorneys admitted in Japan, joined Atsumi & Sakai on September 1, 2023, as Partners.

11 Sep 2023
Notice of the Establishment of Policy Research Institute

Atsumi & Sakai established a “Policy Research Institute” on June 27, 2022. 1. Purposes of the Policy Research Institute The Policy Research Institute, led by our partner, Takafumi Ochiai, includes lawyers from Atsumi & Sakai, as well as experts with experience in various companies, organizations, and public institutions. The Institute aims to build bridges between […]

04 Apr 2023
Atsumi & Sakai: Daisuke Yohimori has been promoted to the position of Partner at the Firm

Daisuke Yohimori has been promoted to the position of Partner at the Firm as of February 1, 2023.

02 Feb 2023
Atsumi & Sakai: Divestment of Kojimachi Office

We are pleased to announce that effective 1st January 2023 our Kojimachi office will split from Atsumi & Sakai as “Atsumi Law Office” represented by attorney Yoko Atsumi and will operate as a separate law firm. A&S and Atsumi Law Office joined forces in December 2020, with Atsumi Law Office providing legal services as our Kojimachi […]

02 Feb 2023
Legal and ethical frameworks of artificial intelligence in the U.S., EU and China Published

“Legal and ethical frameworks of artificial intelligence in the U.S., EU and China: companies, research institutes and the like in Japan will need to be prepared” “Legal and ethical frameworks of artificial intelligence in the U.S., EU and China: companies, research institutes and the like in Japan will need to be prepared,” authored in Japanese […]

09 Nov 2022
Atsumi & Sakai has been shortlisted for the 5 categories of Women in Business Law

Atsumi & Sakai has been shortlisted for the 5 categories of Women in Business Law APAC Awards 2022 Atsumi & Sakai has been shortlisted for the following 5 categories of Women in Business Law APAC Awards 2022: Practice area awards – Antitrust & Competition Lawyer of the Year: Setsuko Yufu (Partner) – Environment Lawyer of the Year: Miho […]

01 Aug 2022
Atsumi & Sakai: Takafumi Ochiai, Partner, was selected as one of the 30 rule makers in Japan in an article entitled “30 POWERFUL RULE MAKERS,”

Takafumi Ochiai, Partner, was selected as one of the 30 rule makers in Japan in an article entitled “30 POWERFUL RULE MAKERS,” published in Forbes JAPAN No. 096.

28 Jun 2022
Atsumi & Sakai: Partner Promotions

Natsuki Mitsuyama and Mayumi Hongo have been promoted to the position of Partner, and Akiko Hiraoka and Chihiro Saito have been promoted to the position of Of Counsel at the Firm as of June 16, 2022

28 Jun 2022
Atsumi & Sakai: Mitsuru Misawa, Kazuki Ishihara and Shinya Ishikawa, join June 1, 2022

Mitsuru Misawa (Partner), Kazuki Ishihara (Partner) and Shinya Ishikawa (Associate), attorneys admitted in Japan, joined Atsumi & Sakai on June 1, 2022. Read more

01 Jun 2022
Atsumi & Sakai: Nine attorneys newly admitted in Japan joined on April 21, 2022.

9 attorneys who are newly admitted in Japan joined Atsumi & Sakai on April 21, 2022.   Shinji Yoshioka (Of Counsel) Sejin Lim (Associate) Shinya Sato (Associate) Nozomi Shimobayashi (Associate) Misaki Tsukamoto (Associate) Yusuke Furuta (Associate) Reisuke Makuta (Associate) Kenji Misawa (Associate) Akane Mori (Associate)

09 May 2022
Atsumi & Sakai: Rie Kishida has been promoted to the position of Partner

Rie Kishida has been promoted to the position of Partner at the Firm as of March 14, 2022. Rie Kishida has been promoted to the position of Partner at the Firm as of March 14, 2022.

29 Mar 2022

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