Following is a list of essays, columns, and commentaries which I wrote on newspapers and magazines. I arranged them into (1) series essays and (2) one-shot essays separately. All essays are Japanese only.

(1) Series Essays

NAZO TO SUIRON (Solving Riddles)
These are essays serialized in Yamaguchi Shinbun Newspaper every Wednesday from September 2010 to July 2011. Total 42 essays. Using this series as main, along with other contents, I published a book NAZO TO SUIRON (Solving Riddles)” in 2011.

Letters from Hananocho
These are columns serialized in the monthly magazine of Shimonoseki Chamber of Commerce and Industry between October 2010 to May 2011. Total seven columns. I researched the History of Shimonoseki city and explained some stories related to the Hananocho, the traditional name of a place where Bank of Japan Shimonoseki branch stands.

Working at Hitachi
These are columns serialized in the financial industry magazine ‘Weekly KIN’YU ZAISEI JIJOU (Journal of Financial Affairs)’ in 2012. Total nine columns. When I was seconded from the Bank of Japan to Hitachi Ltd. for two years, I took a close look at the way of doing business in the IT company and reported it to people in the financial industry.

(2) One-shot Essays

The underlying mechanism of virtual currency, “Nihon Keizai Shimbun,” 2018.7.2

Securities market, virtual currencies, and Initial Coin Offerings, “Monthly Capital Market,” (May, 2018 issue)

ICO (Initial Coin Offering) is not alchemy, “Weekly Nikkei Business,” 2017.12.13

Development of FinTech and the way of financial institutions, “Legal and Banking 21” No. 810, 2017.3.8

FinTech innovation and its impact, “Monthly Auditor” (No. 658), 2016.9.25

FinTech and Future of Financial IT, “Regional Banks Association Monthly Journal” (January 2016 issue)

About workshop on the advanced sophistication of banking business utilizing IT, “Monthly Magazine of Japanese Bankers Association – Finance” (December 2015 issue)

Looking beyond the “My Number” – the national numbering system coupled to each bank account, “Legal and Banking 21” No. 792, 2015.10.01

A new design philosophy of the banking information system, “Weekly KIN’YU ZAISEI JIJOU (Journal of Financial Affairs)” 2015.1.5

Current status and problems of information security in financial institutions, “Regional Banking” (March 2008 issue)

Counterfeit Cards Depositor Protection Act and Security Measures of Financial Institutions – Special Issue: Protection of Bank Depositors from Counterfeit Cards, “Jurist” (March 15, 2006 issue)

Counterfeit bank card problem makes banks reconsider the strategy of the bank deposit business, “Weekly KIN’YU ZAISEI JIJOU (Journal of Financial Affairs)” 2005.5.2

Cryptographic Technology for Promoting e‐Society: e‐Business and Cryptographic Technology, “Information Processing” Vol. 45, No. 11, 2004.11.15

The cryptographic technologies used for financial operations and international standardization, Newsletter “Kin’yu Zaisei,” June 29, 1998

IT-innovation and banks, “Regional Banks Association Monthly Journal” (June 1995 issue)