- Languages
- JapaneseEnglish
Contact Information
- TEL
- +81-3-5223-7767
- FAX
- +81-3-5223-7667
Practice Areas
Work Highlights
- Acquisition of Coleman Research Group by VisasQ (August 2021)
- Represented AB Volvo in connection with its acquisition of shares of Nissan Diesel Motor (currently, UD Trucks) from Nissan Motor (2006)
Atsushi Oishi：Awards
- Awards
- Sixteen of our lawyers selected as Japan’s Top 100 Lawyers 2024 in Asia Business Law Journal
- Awards
- Top rankings received from Chambers High Net Worth 2024
- Awards
- The Best Lawyers in Japan™ and Best Lawyers: Ones to Watch in Japan™ (2025 edition)
Atsushi Oishi：News
- Public Service
- Firm's lawyers and licensed tax accountants submit a report for "Research on the Mandatory Disclosure Rules for Tax Planning in Foreign Countries" commissioned by the Ministry of Finance
- Public Service
- Firm's lawyers and licensed tax accountants submit a report for "Research on Preferential Tax Systems in Asian Countries" commissioned by the Ministry of Finance
- Public Service
- Atsushi Oishi became the invited researcher at Global Family Business Research Institute, Waseda University
Atsushi Oishi：Seminars
- Sep. 9, 2020External Seminars
- "Governance & Succession - Philippines and Japan"
- Jul. 1, 2020External Seminars
- "Thailand Private Client - Virtual Round Table"
- Aug. 30, 2017External Seminars
- "The 55th International Young Lawyers’ Congress"
Atsushi Oishi：Publications
- Magazine Article
- "International Arbitration over the Devaluation of Credit Suisse AT1 Bonds and the Potential Utilization of “Third Party Funding""
- Magazine Panel Discussion
- "Significance of Family Governance (Second Series) - From the Perspective of the Founding Family, Listed Family Business, M&A and Investments"
- Magazine Panel Discussion
- "Significance of Family Governance - with Family Business Succession in Mind"
Atsushi Oishi：Research Reports
Report Concerning Research on Preferential Tax Systems in Asian Countries, Commissioned by the Ministry of Finance (March 2017)
Report Concerning Research on the Mandatory Disclosure Rules for Tax Planning in Foreign Countries, Commissioned by the Ministry of Finance (September 2017)
Atsushi Oishi：Other
Background
- The University of Tokyo (LL.B., 1996)
- New York University School of Law (LL.M., 2003)
- Weil, Gotshal & Manges, New York (2003-2004)
Major Activities
- Member of Task Force on Management Buy Out and Other Transactions, organized by Ministry of Economy, Trade and Industry (2007)
- Member of Expert Committee on Anti-Tax Haven Legislation and Intangible Assets, organized by Ministry of Economy, Trade and Industry (2013)
- Invited Researcher at Global Family Business Research Institute, Waseda University (2016-)
- Member of PB Professional Ethics Review Committee, The Securities Analysts Association of Japan (2018-)
- Member of PB Education Committee, The Securities Analysts Association of Japan (2018-)
Practice Group
- M&A Practice Group
- Wealth Management Practice Group
- Taxation Practice Group
- Litigation Practice Group
Bar Admissions
admitted in Japan, 1998; New York, 2004
Daini Tokyo Bar Association
Other Qualifications
Japan-Licensed Tax Accountant (2006)
Tokyo Certified Public Tax Accountants' Association
Certified as Support Agencies for Business Innovation (2018)