Company

Company name
CellSource Co., Ltd.
Date of establishment
November 30, 2015
Representative
Masato Tsumamoto, CEO & Representative Director
Stock Exchange Listings
Tokyo Stock Exchange (TSE) Mothers (Stock Code: 4880)
Location
Headquarters
2F,Shibuya Mitake Building, 1-19-5 Shibuya, Shibuya-ku, Tokyo 150-0002 Japan Phone: +81 3 6455 5308 (switchboard) / Fax: +81 3 3470 6088
Cell Processing Center
The facility certified as “foreign cell processor” by the Ministry of Health, Labour and Welfare
(Kanto-Shinetsu Regional Bureau of Health and Welfare)
(Facility Code: FA3160006)

2F,TOKYU REIT Building, 1-17-2, Shibuya, Shibuya-ku, Tokyo 150-0002 Japan
Business description
  • Regenerative medicine-related business
  • Consumer business
Registered patent
  • 成長因子混合物およびその調製方法(Patent Number: 6391872)
  • 成長因子混合物およびその調製方法(Patent Number: 6286094)
  • 加工受発注システム (Patent Number: 6402874)
  • 収容提案システム (Patent Number: 6323824)
Board members
  • CEO & Representative Director
    Masato Tsumamoto
  • Chief Financial Officer & Director
    Takeshi Amemiya
  • External Director
    Norio Murakami
  • External Director
    Kumi Fujisawa
  • Executive Officer
    Hirohiko Hanaki
  • Executive Officer
    Katsuji Onishi
  • Executive Officer
    Makoto Kagayama
  • Executive Officer
    Hajime Wakatsuki
  • Executive Officer
    Shinichi Sakurada
  • Executive Officer
    Yujiro Sugi
  • Audit & Supervisory Board Member
    Kimio Yamashita
  • Audit & Supervisory Board Member
    Hideo Koyama
  • Audit & Supervisory Board Member
    Tsuneyasu Ozaki
Accounting Auditor
Ernst & Young ShinNihon LLC

Corporate Advisor Profiles

Masayuki Yamakawa
Strategic Advisor / M.D.
Personal history
  • 1989
    B.M., Faculty of Medicine, Tottori University
  • 1993
    Founded Seishin Plastic and Aesthetic Surgery Clinic Co., Ltd. (Retired)
  • 2007
    Founded THE CLINIC Tokyo (Retired)
  • 2015
    Founded SerialIncubate Co., Ltd. (Incumbent Representative Director)
    Founded CellSource Co., Ltd. (Retired)
  • 2016
    Founded Tokyo Knee Osteoarthritis Clinic (Retired)
  • 2021
    Strategic Advisor (Incumbent), CellSource Co., Ltd.
Hideto Kaneshima
Chief Technical Advisor / M.D., Ph.D.
Personal history
  • 1978
    B.M., School of Medicine, Nagoya University (medical license obtained)
  • 1983
    Ph.D. (Medicine), Graduate School of Medicine, Nagoya University
  • 1986
    Visiting researcher of pathology, School of Medicine, Stanford University
  • 1988
    Founded Systemix Inc. in the U.S., and served as a senior researcher
  • 2000
    Director of the Silicon Valley Office for the University of Tokyo
  • 2016
    Director, CSO, CellSource Co., Ltd.
  • 2018
    Chief Technical Advisor (Incumbent), CellSource Co., Ltd.
Masahiro Samejima
Corporate Lawyer/Patent Attorney (Uchida & Samejima Law Firm)
Personal history
  • 1985
    B.E., Department of Metallurgical Engineering, Tokyo Institute of Technology
  • 1985
    Joined Fujikura Electric Wire Corporation (currently known as Fujikura Ltd.)
  • 1992
    Joined IBM Japan, Ltd.
  • 1999
    Registered with the Daini Tokyo Bar Association (the 51st term) / Joined Oba & Ozaki Law Office
  • 2000
    Joined the Matsuo Law Offices (currently known as Matsuo & Kosugi)
  • 2004
    Founded the Uchida & Samejima Law Firm
Sho Iwamoto
Corporate Lawyer (KnowledgeWing Law Firm)
Personal history
  • 2004
    LL.B., Faculty of Law, Doshisha University
  • 2007
    J.D., Ritsumeikan University School of Law
  • 2008
    Registered as a lawyer in Japan (the new 61st term) / Joined Kyowa-sogo Law Office
  • 2014
    LL.M., Fordham University School of Law in the U.S.
  • 2014
    Joined the Marubeni Corporation as an in-house lawyer in its legal department
  • 2015
    Registered with the New York State Bar Association
  • 2017
    Opened KnowledgeWing Law Office
  • 2018
    Incorporated KnowledgeWing Law Firm