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Atsumi & Sakai
Kazuki Ishihara
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Kazuki Ishihara

Senior Partner

Main Practices
Venture Finance / Fintech / Establishing Companies and Businesses for Startups / M&A, Corporate Reorganization, and Joint Ventures / Intellectual Property Registration / Brand Protection and Counterfeiting / IT Systems and Services / Personal Information, Privacy/Big Data / Open Innovation and Startups / China and Hong Kong
Languages
Japanese / English
Office
Tokyo
Contact

Overview

Publications & Seminars

Awards

Admitted

Japan (2012)

Bar Association

Daini Tokyo Bar Association

Education

Kyoto University (LL.B., 2009)
Kobe University, Graduate School of Law (J.D., 2011)
The Legal Training and Research Institute of the Supreme Court of Japan

Background

Yahoo  (2013-2015)
KUBOTA (2015-2017)
FAST Law Office (2017-2022)
External Corporate Auditor for coconala Inc. (2017-2022)
Outside Director for BIZVAL Inc. (2019-2021)
External Corporate Auditor for Mirrativ, Inc. (2019-2024)
External Corporate Auditor for Nealle Inc. (2022-2025)
Outside Director for AirTrip Corp. (current)
Auditor for Well-Beings Co., Ltd. (2024-current)

Member

Associate member, Japan In-House Lawyers Association
Secretary General of the Japan Contents Team, IP Lawyers Network
President, Japan Beauty Freelance Association

Publications

  • “Contract Templates for Equity Investment in Startups,” Fintech Association of Japan (2023) [as a Study Group Secretariat]

  • “Lawyers Guide 2023,” Lexis Nexis and Business & Law LLC (January 2023) [Interview]

  • Legal Services Surrounding the Subscription Business: Subscriptions, Freemiums, and Sharing Economy, SHINNIPPON-HOKI PUBLISHING CO., LTD. (2022) [Editor/Author]

  • The First Step Towards a One-Person Legal Team, Japan Business Law Review (April 2022) [Co-author]

  • A Guide to Establishing Private Law Practice Part 2, Dai Ichi Hoki, Co., Ltd (2021) [Co-author]

  • Comprehending Law through Q&A: Real Estate edition, Chuokeizai-sha Holdings, Inc. (2019) [Co-author]

  • Legal Techniques [OJT edition], Chuokeizai-sha Holdings, Inc. (2019) [Co-author]

Web Articles

Seminars

  • “Publication Commemorative Seminar: Compliance as Brand Strategies,” hosted by Atsumi & Sakai Start-up Support Practice Team, January 22, 2025
  • “Practical Responses to Problematic Employees - Solutions to Protect the Work Environment and Increase Labor Productivity,” hosted by Atsumi & Sakai Start-up Support Practice Team, October 21, 2024
  • “The ‘Stand Out’ Company: A Lawyer's Perspective on Brand Strategy and Specific Measures to Strengthen Legal Practices,” hosted by Atsumi & Sakai Start-up Support Practice Team, July 29, 2024
  • Judge at an event entitled “Yamanashi Volcanic Disaster Prevention Innovation Pitch Contest,” hosted by the Mount Fuji Research Institute, Yamanashi Prefectural Government, July 12, 2024
  • “Introduction of IPO by Local Companies,” hosted by Atsumi & Sakai, December 5, 2022
  • “Establishing an anti-social forces screening system when preparing for an IPO,” hosted by Atsumi & Sakai, November 7, 2022