Graduated from the School of Political Science and Economics, Waseda University. MBA, The Wharton School, University of Pennsylvania.
After handling accounting audits, M&A support, IPO support, and corporate training at Tohmatsu and Nishiyama Associates, he joined Waseda University in 2002, and has held his current position since 2006.

At the graduate school, he conducts research and teaching in accounting and finance. Ph.D. (Waseda University).
Certified Public Accountant. He has served as an outside officer at listed companies.

His major books include
"Corporate Analysis Scenarios, 2nd Edition"
"A Textbook on Financial Statements and Finance for Non-Specialists" (both Toyo Keizai)
"77 Common Sense Rules of Accounting Thinking Taught at Business Schools"
"Strategy and Finance for Value Creation from Zero" (both Nikkei BP)
"Strategic Management Accounting, Revised 2nd Edition" (Diamond, Inc.)