Our members – MIKASA&Co.
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Members Introduction

  • Koichi Yasuda

    Managing Partner&Representative Partner/CPA

    • Shuhei Ito

      Representative Partner/CPA

    • Akira Ota

      Representative Partner/CPA

    • Yuji Ishida

      Representative Partner/CPA

    • Eiji Iyama

      Partner/CPA

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  • Koichi Yasuda

    Managing Partner&Representative Partner/CPA

    Career history

    Mar. 1989 Graduated from Chuo University Faculty of Law, Department of Law
    Sep. 1988 Joined KPMG Minato & Co. (currently Ernst & Young ShinNihon LLC)
    Apr. 1991 Registered as Certified Public Accountant
    May 2000 Founded Yasuda CPA Office (current)
    Oct. 2003 Founded Neuest CPA Office
    Feb. 2005 Registered as Certified Tax Accountant
    Jun. 2006 Representative Partner at MIKASA&Co.
    Sep. 2006 Representative Partner at Mikasa Tax Accountant Corporation (current)
    Aug. 2019 Managing Partner & Representative Partner at MIKASA&Co. (current)
  • Shuhei Ito

    Representative Partner/CPA

    Career history

    Mar. 1992 Graduated from Nihon University College of Science and Technology
    Oct. 1995 Joined KPMG Tokyo Office (currently KPMG AZSA LLC)
    Oct. 2005 Founded Ito CPA Office (current)
    Jun. 2006 Representative Partner at MIKASA&Co. (current)
    Jan. 2009 Representative Director at SOX Advisors Co., Ltd. (current)
    Jun. 2011 Outside Auditor at SPACE SHOWER NETWORKS INC. (current)
    Jun. 2012 Outside Auditor at WILL GROUP, INC.
    Jun. 2015 Outside Director at WILL GROUP, INC. (current)
    Feb. 2017 Outside Auditor (currently Outside Director) at Excite Japan Co., Ltd.
    Director or Auditor (including a substitute auditor) of other listed companies and venture companies
  • Akira Ota

    Representative Partner/CPA

    Career history

    Mar. 2003 Graduated from Keio University Faculty of Economics
    Oct. 2003 Joined KPMG AZSA LLC
    Aug. 2015 Representative Director at Ota Kinoshita Certified Accountant Office (current)
    Representative Partner at MIKASA&Co. (current)
  • Yuji Ishida

    Representative Partner/CPA

    Career history

    2004 Passed Certified Accountant 2nd Exam (under the old examination system)
    2006 Graduated from Keio University Faculty of Economics
    Joined KPMG AZSA LLC Tokyo Office
    2008 Registered as Certified Public Accountant
    2015 Transferred to KPMG Columbus Office in the US
    2018 Transferred to KPMG Houston Office in the US
    2020 Founded Ishida CPA Office (current)
    President at IAIC,Inc. (current)
    Representative Partner at MIKASA&Co. (current)
    2022 Auditor at Nihon University Enterprise Co., Ltd
    Outside Auditor at CyberStep, Inc. (current)
    Representative Partner at IAIC Tax, Co. (current)
  • Eiji Iyama

    Partner/CPA

    Career history

    Mar. 2002 Graduated from Kansai University Faculty of Informatics, Department of Informatics
    Apr. 2002 Joined Daiwa Institute of Research Ltd.
    Apr. 2007 Joined MIKASA&Co.
    Aug. 2019 Partner at MIKASA&Co. (current)
    Nov. 2020 Founded Iyama CPA Office (current)
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Our members – MIKASA&Co.

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