Tokyo
Fukuoka
New York
London
Frankfurt
Access
Careers
EN
JP
- 日本語
EN
- English
CN
- 中文（簡）
DE
- Deutsch
MENU
Language
JP
- 日本語
EN
- English
CN
- 中文（簡）
DE
- Deutsch
Professionals
Our Services
Global Coverage
News/Events
News/Events
All News/Events
News
Awards
Media
Hires/Appointments
Events & Seminars
Careers
Others
Publications
Publications
All Publications
Books
Newsletters
Articles
Others
About Us
About Us
About Us
Sustainability Declaration
Pro Bono Translation Services
DE&I
Organizations/Partnerships
Awards
Contact
Access
Careers
©2001-2024 Atumi & Sakai
Professionals
Home
Professionals
Search by terms
Search by name
Search by key word
All services
All
Finance and Banking
All
Banking
Insurance
Financial Regulation
Venture Finance
Aircraft, Ship, and Asset Finance
Project Finance
Acquisition Finance
Fintech
International Finance Legal Services
Trusts
Funds
All
Asset Management and Investment Funds
Venture Practice
Corporate Risk and Crisis Management
All
危機管理対応全般・危機管理広報
General Compliance
Internal and External Investigations
Internal Audits
Regulatory Investigations (Domestic and Foreign)
Social Media Risk and Reputational Damage
Digital Forensics and Cybersecurity
Accounting Fraud
Insider Trading and Market Manipulation
Anti-bribery (Domestic)
Anti-bribery (Foreign)
Product Quality and Inspection Fraud
Special Negligence and Environmental Accidents
Data Protection, Data Leaks, and Cybersecurity
Product Liability
Internal Reporting Systems
Risk Management Disputes
Money Laundering and Proceeds of Crime
Labor and Employment
All
Labor and Employment Law
Labor and Employment Compliance
Termination of Employment
Labor Disputes
Labor Unions
M&A, etc. Labor Issues
HR System Reforms
Harassment and Misconduct
Offshore Employment and Labor Laws
Employee Data Privacy
Directors and Officers
Social and Labor Insurance; Visas
Labor Authorities
Corporate
All
Corporate Governance
Shareholder Meetings
Corporate Disputes
Proxy Disputes and Special Shareholders
General Corporate Legal Affairs
Establishing Companies and Businesses for Startups
Fintech
All
Cashless Payments and E-money
Financial Institution DX, BaaS, and API
Electronic Payment Services (PFM, Accounting Services), Information Banks, and Use of Financial Information
Crowdfunding
Small Business Financing
Robo-advisors and Trading Market Forecasts
InsurTech
Crypto-assets
STOs, Stable Coins, and Local Currencies
RegTech and SupTech
National Security
All
National Security
Media, Entertainment, and Sport
All
Broadcasting
Advertising & Marketing
Music
Sport
Film
E-sport
Brand Protection
Sports & Betting
Sport Arbritration
Governance and Integrity in Sport
Regional Revitalization
All
Regional Finance
Regional Corporate Restructuring
Regional Industrial Promotion
Capital Markets
All
Structured Finance and Securitization
Derivatives
Securities Transactions, Disclosure, and Securities-related Litigation
M&A
All
M&A, Corporate Reorganization, and Joint Ventures
Joint Ventures
Private Equity and Venture Capital
Cross-Border M&A
White Collar/Criminal Defense
All
Corporate and White Collar Crime
White Collar Crime
Criminal Complaints
Misconduct of Officers or Employees
Criminal Defense
Tax and Wealth Management
All
Tax Advice and Tax Planning
Share Valuation and Financial Due Diligence
Corporate Disclosure Compliance
Wealth Management, Business Succession, and Inheritance
家事事件（相続、事業承継、離婚、婚前契約）
International Taxation
Tax Disputes and Administrative Disputes
特別税務
Inward Investment
All
Inward Investment
Real Estate and Construction
All
Real Estate Financing and REITs
Real Estate Transactions
Real Estate Development
IT, Telecommunications, and Data
All
IT, Telecommunications, and Radio
Data Protection, Privacy, and Cybersecurity
Global Personal Information Management
Information Security/Cybersecurity
Life Sciences and Healthcare
All
Pharmaceuticals, Cosmetics, and Medical Devices
Health Foods and Supplements
Digital Health
Biotechnology
Medical Institutions
Medical IP and Licensing
Agriculture, Forestry and Fisheries/Foods
All
AgriTech and Food Tech
Food, Beverages, and Alcohol
Food and Agricultural Regulation and Product Safety
Protection of Rights in Agricultural Products and Foods
Distribution of Agricultural Products and Food
Agri-finance
Agriculture, Forestry and Fisheries in General
Competition/Antitrust
All
Merger Control (Domestic and International)
Cartels, Bid Rigging and Leniency
Japan Fair Trade Commission Investigations and Inquiries
Antitrust Litigation (Domestic)
Antitrust Compliance and Investigations
Vertical Restraints and Abuse of Superior Bargaining Position
Subcontracting and Misrepresentations
Antitrust Investigations (Overseas)
Antitrust Private Enforcement (Overseas)
Dispute Resolution
All
General Civil Litigation
Intellectual Property Protection and Disputes
IT System Development Disputes
Labor Disputes
Finance/investment-related Disputes
証券訴訟
Arbitration, Conciliation, and Other ADR (Domestic)
Overseas Disputes and Litigation
Arbitration, Conciliation, and Other ADR (International)
家事事件（相続、事業承継、離婚、婚前契約）
Intellectual Property
All
Intellectual Property Protection and Disputes
Intellectual Property Transactions
Intellectual Property Registration
Brand Protection and Counterfeiting
Unfair Competition and Protection of Business Data
IT Systems and Services
Privacy and Big Data
International Trade
All
WTO, Trade Agreements, and Investment Agreements
Anti-dumping and Trade Remedies
Customs and Tariffs
Export Controls, Imports, Customs, and Tariffs
Restructuring and Insolvency
All
Corporate Insolvency, Reorganization, and Liquidation
Insolvency, Bankruptcy & Liquidation (Domestic)
Voluntary Liquidation
Foreign Insolvency Proceedings
Financial Transactions and Bankruptcy
General Corporate Reorganization
Energy, Resources, and Environment
All
Renewable Energy, etc.
Petroleum, Natural Gas, Minerals and Other Natural Resources
Environmental Law / Global Warming Prevention
Infrastructure
All
Infrastructure Projects, Construction and Disputes
PPP, PFI, and Concessions
IoT/AI
All
Smart City and Infrastructure DX
Digital Platforms
Open Innovation and Startups
DX Governance, E-Contracts, and Service Digitalization
Public Relations, Regulatory Reform, and Sandbox
Robots, AI, and Autonomous Vehicles
Quantum Computing, Blockchain, and New Technologies
Real Estate Tech
MaaS and New Mobility
Telecommunications and IoT
Data Utilization
Sharing Economy
Digital Health
Europe
All
United Kingdom
Germany
Europe and the EU
Russia
All
Russia
Asia
All
China and Hong Kong
Taiwan
Vietnam
Laos/Thailand/Cambodia/Myanmar
India
Korea
Singapore
Indonesia and Malaysia
Oceania
All
Australia/New Zealand
North & Latin America
All
North/Latin America
Middle East and Africa
All
Middle East and Africa
Apply filters
Clear filters
All titles
Senior Partner
Partner
Advisor/Consultant
Special Counsel
Of Counsel
Associate
Registered Foreign Lawyer
Foreign Lawyer
CPA / Licensed Tax Accountant, etc.
Affiliates and Overseas Offices
All titles
All offices
Tokyo
Fukuoka
New York
London
Frankfurt
Janssen Foreign Law Joint Enterprise with Atsumi & Sakai
A&S Tax and Accounting
All offices
Search
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
*Affiliated organization is indicated in the personal profile page for those professionals who are not affiliated with the Tokyo office.
Senior Partner
Michiaki Hosoi
Senior Partner
Shintaro Hamasu
Senior Partner
Eiichiro Hata
Senior Partner
Hirofumi Hosoda
Partner
Madoka Hashimoto
Partner
Saori Hanada
Partner
Mayumi Hongo
Advisor/Consultant
Fumiyuki Hara
Advisor/Consultant
Daniel C. Hounslow*
Associate
Keita Hitomi
Associate
Mina Horiuchi
Associate
Kento Hirai
Associate
Masao Horie
Associate
Shintaro Hoshino
Associate
Shawn Huang
Associate
Mariko Hino
Associate
Tatsuhiro Hirayama
Affiliates and Overseas Offices
Miyuki Hanaoka
Affiliates and Overseas Offices
Ulrich Hildenbrand
Affiliates and Overseas Offices
Hiroo Yagi