Tsuyoshi Hirayama （Legal Counsel）
Attorney at Law (Japan)
Certified Public Accountant (JICPA)
He passed the Japanese Bar Examination, the Certified Public Accountant Examination, and the National Public Service Examination (Type I). After graduation, he started his career at a creative production company, gaining hands-on experience in the field of advertising and media. Following completion of law school, he worked as a CPA at Deloitte Tokyo, mainly engaged in assurance and advisory services.
After completing legal training, he practiced as an attorney at a major international law firm and subsequently at a securities company, dealing with corporate legal affairs, financial instruments and exchange law matters, and various litigation cases. His practice spans a wide range of fields including corporate law, financial regulations, and dispute resolution.
In addition, he has served as a part-time lecturer in corporate law at Keio University and has held several positions as statutory auditor and outside director at listed companies. With extensive experience in civil, criminal, and administrative litigation, his cases have been published in professional journals and law reports. In recent years, he has been actively involved in cutting-edge legal issues related to AI, digital content, and crypto assets, building a unique practice at the intersection of law, accounting, and technology.
(Education / Qualification)
Graduated from Keio University, Faculty of Environment and Information Studies
Attorney at Law (Japan)
Certified Public Accountant (JICPA)
(Job History)
2004: Pyramid Film Co., Ltd.
2007: Deloitte Tokyo (Assurance Services)
2009: Registered as Certified Public Accountant / Attorney at Law
2009: Established Hirayama CPA Office (current)
2010: Ito Mitomi Law Office (currently Morrison & Foerster Law Offices)
2012: Director, Omoroki Inc. (current)
2015: Established Tairaka Law Office (current)
2015: Part-time Lecturer, Keio University (Corporate Law)
2017: Statutory Auditor, Rapyuta Robotics Co., Ltd.(current)
2018: Statutory Auditor, Freee K.K.
2019: Statutory Auditor, Bulk Holdings Co., Ltd. (current)
2020: Statutory Auditor, Socialwire Co., Ltd. (current)
2024: Outside Director (Audit & Supervisory Committee Member), Data Section Inc. (current)
2025: Legal Counsel, Nihon-Bashi International Accounting Firm
(Awards / Activities)
2014: Awarded Jury Selection, 17th Japan Media Arts Festival (Agency for Cultural Affairs)
Numerous publications in legal journals, media contributions, and seminar presentations