
- Profile
Accolades
Testimonials
Collated independently by Legal 500 research team.
- 'Daniel Allen is the best arbitration advocate in Japan, hands down. He is very thorough and persuasive to arbitrators and gets the work done.'
- 'It is an up-and-coming practice group which has up and become one of the best in Japan. The team has very strong advocacy skills and excellent teamwork.'
'Mugi Sekido is a great lawyer and litigator. He is always responsive, very proactive and has a good sense for the needs of the clients.'
'The team is very creative and solid in their legal theories, and we work with them in many complicated matters that need serious fights. They are good at producing public comments on critical legislative proposals that governments are looking into, and their work based on solid litigation experience is exceptional.'
'We trust Mr. Koichiro Iida for general disputes and legislative comments. He is very strategic and candid in his feedback and opinions, which is helpful for his clients.'
'The team provides timely, accurate and business-oriented legal advice. The team is highly collaborative and has excellent teamwork skills.'
'The team has high-level language skills, deep understanding and extensive experience in handling international conflict for many Japanese clients. Mugi Sekido acted like a glue between Japan and the US in our case and we appreciate we had someone like him who enabled us to make quick and adequate decisions.'
Key clients
- SoftBank Corp.
- Japan Post Co., Ltd.
- Yamato Transport Co., Ltd
- Hitachi, Ltd.
- Toshiba Corporation
- Daio Paper Corporation
- BICCAMERA INC
- Eksportfinans ASA
- Tokyo Boeki Materials, Ltd.
- Coincheck, Inc.
Work highlights
- Advised Japan Post Co., Ltd. in defence of claims brought under the Labour Contract Act by a high number of fixed-term employees over differences between the terms and conditions of their employment contracts and those of employees who are employed permanently.
- Advised Toshiba Corporation in defence of claims brought by former or current shareholders in tort alleging “improper” disclosure of financial information by Toshiba in past years.
- Represent Coincheck, Inc. in respect to lawsuits seeking compensation launched by investors after the client was hacked in January 2018, resulting in the theft of approximately JPY58billion in cryptocurrency NEM.
Lawyers
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.

Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.
Practice head
Mugi Sekido; Kana Manabe; Yoshinori Tatsuno
Other key lawyers
Koichiro Iida; Daniel Allen