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Momo-o, Matsuo & Namba was founded in April 1989 by its three name partners and their associates. With our experience in the areas of international and domestic business transactions and litigation, our goal has always been to effectively accommodate the needs of clients while providing superior and reliable legal advice.

We pride ourselves on the ability to meet the complicated demands of corporate clients in an ever-changing world economy. Our expertise spans various areas of law, including commercial transactions, corporate, M&A, bankruptcy, antitrust, intellectual property, labor & employment and general litigation/arbitration. Many lawyers in our firm have obtained advanced legal degrees abroad and worked at foreign law firms. Many are recognized experts in their fields of practice. It is this depth of experience that enables us to provide timely and hands-on counsel to domestic and international corporations on a wide range of cross-border matters.

While the trend for law firms in Japan has been to increase its attorney-count, we firmly believe that by maintaining and enhancing our clients' trust, our firm can and will keep growing organically as a mid-sized law firm practicing efficiently and effectively in many different practice areas.

News

2023.02.02 Publications

New

On February 1, Takayuki Matsuo published an article on AI and fairness.

2023.01.20 Publications

New
On January 15, 2023 Takayuki Matsuo published an article on LegalTech.

2023.01.12 Information

On January 1, 2023, Takayuki Matsuo was appointed as Project Associate Professor at Keio University.

2023.01.12 Lecture and Seminars

On January 12, 2023, Takayuki Matsuo delivered a speech on Chinese Personal Information Protection. Hu Yue contributed to the speech.

2023.01.05 Information

Junya Naito has been elected as managing partner of the firm commencing January 2023.

2023.01.12 Information

On January 1, 2023, Takayuki Matsuo was appointed as Project Associate Professor at Keio University.

2023.01.05 Information

Junya Naito has been elected as managing partner of the firm commencing January 2023.

2022.06.03 Information

Momo-o, Matsuo & Namba has obtained ISO/IEC27001 certification, the standard for information security management systems, as of May 28, 2022. We will continue to maintain and enhance our information security and thoroughly manage information security risks to ensure the trust of our clients in Japan and abroad, and by extension, the trust of society.

2023.01.12 Lecture and Seminars

On January 12, 2023, Takayuki Matsuo delivered a speech on Chinese Personal Information Protection. Hu Yue contributed to the speech.

2022.12.21 Lecture and Seminars

On December 20, 2022, Takayuki Matsuo delivered a speech on LegalTech.

2022.12.21 Lecture and Seminars

On December 21, 2022, Takayuki Matsuo delivered the speech for future leaders at Juntendo University.

2022.12.12 Lecture and Seminars

On December 11, 2022, Takayuki Matsuo gave a lecture on algorithm and law.

2022.10.19 Lecture and Seminars

Peter Tyksinski served as an in-person delegate to the 2022 Interlaw Annual Global Meeting in Rotterdam, the Netherlands, from October 12 to October 15. Momo-o, Matsuo & Namba works integrally with its clients throughout the world as the only Japan member of Interlaw , the elite-ranked international network of full-service independent law firms.

2022.10.14 Lecture and Seminars

On October 13, 2022, Takayuki Matsuo coordinated a seminar on software development.

2023.02.02 Publications

New

On February 1, Takayuki Matsuo published an article on AI and fairness.

2023.01.20 Publications

New
On January 15, 2023 Takayuki Matsuo published an article on LegalTech.

2022.12.26 Publications

On December 23, 2022, Takayuki Matsuo published an article on Ransomware Attack.

2022.11.14 Publications

On November 11, 2022, Takayuki Matsuo published an article on Cybernetic Being.

2022.10.05 Awards

Momo-o, Matsuo & Namba and its attorneys have been recognized in the following practice areas by "Who's Who Legal 2022" published by Law Business Research:

“Global Leader: Commercial Mediation 2022” Junya Naito
“Global Leader: Competition 2022” Nobuaki Mukai
“Future Leader: Arbitration Future Leaders - Partners 2022” Tsuyoshi Suzuki
“National Leader: Japan - Arbitration 2022” Junya Naito, Tsuyoshi Suzuki
“National Leader: Japan - Business Crime Defence & Investigations 2022” Rin Moriguchi
“National Leader: Japan - Competition 2022” Nobuaki Mukai
“National Leader: Japan - M&A and Governance 2022” Shuichi Namba
“National Leader: Japan - Mediation 2022” Junya Naito

2022.05.11 Awards

Momo-o, Matsuo and Namba is ranked in the practice areas of Commercial and Transactions; International Arbitration; and White-Collar Crime by "Benchmark Litigation Asia-Pacific 2022" published by Euromoney Institutional Investor. Benchmark has once again ranked Junya Naito as a Litigation Star and recognized him in the practice areas of Commercial and Transactions; and International Arbitration.

2022.04.14 Awards

The following Momo-o, Matsuo & Namba attorneys have been selected for inclusion in the 13th Edition of The Best Lawyers in Japan, the highly regarded peer-review legal publication by Best Lawyers:

"Antitrust/Competition Law" Nobuaki Mukai
"Arbitration and Mediation" Junya Naito
"Corporate and Mergers and Acquisitions Law" Makoto Matsuo, Shuichi Namba and Junya Naito
"Insolvency and Reorganization Law" Shigeaki Momo-o and Junya Naito
"Litigation" Junya Naito
"Private Equity, Private Funds and Venture Capital Law" Shuichi Namba

2022.02.18 Awards

Momo-o, Matsuo & Namba has been ranked in Band 2 and Junya Naito in Band 1 in the practice area of "Dispute Resolution: Domestic Japan" in "Chambers Global 2022" by Chambers and Partners.

Professionals

INTERLAW ロゴ
INTERLAW メンバー

Interlaw

Momo-o, Matsuo & Namba works integrally with our clients throughout the world as the only Japan member of Interlaw, the elite-ranked international network of full-service independent law firms.

Interlaw is an elite international network of more than 80 pre-vetted, annually reviewed, full-service independent law firms in more than 150 cities worldwide comprising over 7,000 lawyers. Interlawyers are fluent in the rules, laws, customs and language of their own jurisdiction as well as in English, and many hold advanced legal degrees from internationally regarded universities and law schools. There is never a fee for referral between Interlaw member firms and every Interlaw member will extend “Best Client” status to clients referred from fellow Interlawyers. Criteria for membership include impeccable ethical standards, reputation for excellence, client responsiveness, expertise in legal representation, transparency in billing, technological capabilities and shared core values. Prospective clients are encouraged to review the expertise of the member firms at www.Interlaw.com.

Practice Areas

The legal issues facing our global and local clients are diverse and represent an ever-changing and increasingly integrated world economy. This reality is reflected in our attorneys who are internationally-recognized experts in practice areas such as litigation and arbitration, corporate law and compliance, M&A, antitrust and competition, bankruptcy and reorganization, intellectual property and labor and employment.

外観

Access

Kojimachi Diamond Building
4-1 Kojimachi, Chiyoda-ku
Tokyo 102-0083 Japan

Awards

  • Chambers Global 2022
  • Chambers Asia-Pacific 2022
  • Chambers Global 2022
  • Chambers Asia-Pacific 2022
  • BENCHMARK LITIGATION Asia Pacific

Certification

Momo-o, Matsuo & Namba has obtained ISO/IEC27001 certification, the standard for information security management systems.

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