• March, 1989
    Graduated from Fuji Senior High School of Shizuoka Prefecture
  • March, 1994
    Graduated from Faculty of Law, Nagoya University
  • April, 1998
    Admitted in Japan (member of Tokyo Bar Association) Commenced Legal Practice at Matsuo & Kosugi (until July, 2002)
  • July, 1999
    Participated the summer program on American Law held by Columbia Law School and University of Amsterdam, Holland
  • March, 2001
    Worked for “Bae, Kim & Lee” in Seoul, Korea (for 1 year)
  • March, 2002
    Worked for “Kim and Chang” in Seoul, Korea (for 5 months)
  • August, 2002
    Established B.D.J. Law and Accounting Office as a Partner (Worked until September, 2005)
  • October, 2005
    Worked for Twenty First City Inc. (a Japanese creative agency and motion-picture production company) in charge of general affairs, corporate legal matters and copy rights
  • June, 2006
    Established Kato & Partners as a partner
  • August, 2008
    Established VASCO DA GAMA OFFICES as a partner

Practice Areas

  • Korea Law Practices
    • Contract negotiation, documentation and handling of disputes regarding Korean entertainment contents
    • Legal matters regarding subsidiaries/branches in Japan of Korean companies
    • Procedural attorney in Japan for Korean companies and their subsidiaries/branches
  • Entertainment Law
  • Media Law
  • Sport Law
  • Finance Law
  • International Law
    • Contract negotiation and documentation of co-production agreements and license agreements on Japanese contents (including Japanese animation)
    • Procedural attorney in Japan for foreign clients
  • Corporate Law
  • Litigations

Titles and Memberships

  • Member of Korea Entertainment Law Society
  • Agreement with Law School of ChungAn University in Korea regarding International Cooperation (August 1, 2009)
  • External Auditor of KNTV Co., Ltd.
  • Members of Japanese Entertainment Lawyers Network
  • Member of The Copyright Law Association of Japan


  • “The Newest Issues of Entertainment Law -focusing on controversies and practices in Korea and Japan-” (Co-written. Published by Jinwoan-Sa, October, 2011)
  • The Primer Regarding Laws of Dream Science” (Co-Supervised, Published by Media Factory, Inc. in February 2011)
  • “IFTA Arbitration Award Entertainment Booklet” (published by Independent Film & Television Alliance (IFTA), January, 2008)
  • “Study for plagiarism criteria and plagiarism protection measures - mainly about in movies and music -” (published by Korea Entertainment Law Association, Plagiarism Research Team, December, 2007)
  • Entertainment Legal Practice” (co-written by Kato Esq., Kataoka Esq. and Okawara Esq. Published by Nikkei Publishing Inc. in December, 2007)
  • “MP3 File-Exchanging Services and Infringement of Copyright: Analysis a Japanese “NAPSTER” Case” (6th Collection of “Research of Korean Intellectual Property Law by Korean Society For Intellectual Property Law)December, 2002
  • “How to Use Copyright Work Its Owner Unknown: Adjudication for Statutory License under Article 67 of Japanese Copyright Law and Its Procedure” (“Business Law Practice” published by Chuokeizai-Sha.Inc.)August, 2000
  • The Primer Regarding Laws of Dream Science (I)” “The Primer Regarding Laws of Dream Science (II)” (Co-Supervised, Published by Media Factory, Inc. in April, 2001 and July, 2003)


  • “Issues under Japanese Laws on International Transactions of Cultural Properties” (November 20, 2020, “Legal Issues on International Transactions of Cultural Properties” at Next Generation Contents Properties Society of Korea)
  • “Legal Issues for Drama Production and Talent Agency in Japan” at International Conference on Entertainment Law of Konkuk University Law Research Institute titled “Trend and Legal Issues in Cultural Contents Industry in Japan” (January 2011)
  • “Legal Issues in Japanese Professional Sports” at 16th IASL (International Association of Sports Law) World Congress on Sports Law at Hanyang University, Seoul, Korea (November 2010)
  • “Exclusive Contract with Entertainer in Japan” at 7th International Conference titled “Cultural Industry and Law” at Chung-Ang University, Seoul, Korea (June 2010)
  • “Current situation of the sport business and management in Japanese baseball” at 2009 International Conference on the Sport Law of Korean Association of Sports & Entertainment Law Inc. (November 2009)
  • Free legal counseling of Entertainment Lawyers Network at TIFFCOM 2009 of Tokyo International Film Festival (October 2009)
  • “Reconsider the Korean Wave - In order to make Asian cultural inter-communion blossom” at the symposium held by Asia-Japan Research Center of Kokushikan University
  • “Japanese change in media environment and issues regarding Japanese copyright law - mainly with case examples” at Chung-Ang University in Seoul, Korea (December 2008)
  • “How to proceed the international co-production of motion pictures and animations with its legal points of view” at Licensing Asia 2008 co-hosted by Nihon Keizai Shimbun
  • Free legal counseling of Entertainment Lawyers Network at TIFFCOM2008 of Tokyo International Film Festival (October 2008)
  • “New Trend of Law in License Agreement Practice in the first half of 2008”
  • “New Business Model in Entertainment and License Agreement-from Movie, Music, Game to Sport” at Licensing Asia 2007 (co-posted by Nihon Keizai Shimbun Inc. and LIMA)
  • “Current Situation of and Points on Advance to Korean Character Market” at Licensing Asia 2004 (co-hosted by Nihon Keizai Shimbun Inc. and LIMA)