Fuminari Hako


Certified public accountant, tax accountant. Born in 1969. After graduating from Keio University’s Faculty of Economics, worked at Century Audit Corporation (now Ernst&Young ShinNihon LLC) and Komiya Consultants Co., Ltd, then launched own business.
Majors in advisory for corporate capital transactions, management property advisory services. Abundant experience as PE funds advisor.

Authored works
  • “Textbook on utilizing PE funds for growth and succession” (joint authorship) Toyo Keizai 2018
  • “Structure of graphical accounting”. Third edition. Toyo Keizai 2011
山田 裕亮

Yusuke Yamada


Certified public accountant, tax accountant. Born in 1983. After graduating from Keio University’s Faculty of Science and Technology, entered Chubu Electric Power Co., Ltd., KPMG AZSA LLC and SCS Global Group International Accounting Office (Singapore and Hong Kong) before entering RESON PARTNERS.
Specializes at accounting and taxation in general, focusing on M & A procedures in Japan and abroad, accounting / tax compliance for inbound of foreign-affiliated companies, and support for overseas expansion of Japanese enterprises and individuals.

Authored works
  • Textbook on using PE funds for growth and succession (jointly authored). Toyo Keizai 2018
  • Making monthly publications focusing on accounting and tax matters in Hong Kong in The Communication Group’s “The Daily NNA”.
岡本 貴文

Takafumi Okamoto


Born in 1986.
After graduating from the Department of Management, Faculty of Economics of Saitama University, engaged in tax practice at a tax accountant corporation in Tokyo, and joined Aoyama Trust (current RESONE PARTNERS) in March 2015.


Extensive knowledge of corporate and personal taxation. Highly evaluated for knowledge of property taxes (inheritance tax, gift tax).

Specializes at cross-cutting taxation such as owner company and business succession.






山岸 雅人

Masato Yamagishi


Born in 1983.
After graduating from Sophia University Graduate School of Law, joined Aoyama Trust (current RESON PARTNERS) in May 2012.


In charge of accounting and taxation for a wide range of clients including general operating companies, investment funds, medical corporations, NPOs, commercial cooperatives and individual business owners. Particularly, has big experience in fund administration for PE funds.









田島 聡

Satoshi Tajima


Born in 1962.

Graduated from Nihon University College of Agriculture and Veterinary Medicine. Completed course at Sophia University EBA Business School.

Finished second semester of phase logistics management consultant course.


Logistics and IT Specialist. Has been involved in IT / logistics improvement and human resource development consulting at five global companies. Also has experience of involving in IPOs of three venture companies. Experienced numerous field improvements and has wide network of logistics, IT and small business owners.

Currently working as a consultant for a global company, a technical advisor for a manufacturing company of next-generation logistics, and an executive director of the Pacific Air Transport Association Asia Region. In private, has a winning history at the sailing competition.



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