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Presently, Shunichi Kosuge occupies the position of Representative Director, VP & Head-Technology at Central Japan Railway Co.

Minoru Kosuge served as the Chief Executive Officer of Hitachi Data Systems Holding Corp.
and as an External Director of Hitachi Solutions, Ltd.
He also worked as an Executive Vice President at Hitachi Ltd.
Kosuge received his undergraduate degree from the University of Tokyo.

Makoto Kosuge worked as a Managing Executive Officer at TAISEI Corp.

Naoya Kosuge has a current job as Director & GM-Administration at Axis Co., Ltd.
(Tokyo).

Kaori Kosuge is currently the Director & Manager-Secretariat Office at JSB Co., Ltd.
since 2019 and the Representative Director at Ovo Co., Ltd.
since 2015.
Previously, Mr. Kosuge worked as the President & Representative Director at Mewcket, Inc.

Katsuhito Kosuge is currently working as the EVP & Head-Asset Solution Business Promotions at Tosei Corp.
He previously worked as a Director at Tosei Revival Investments Co., Ltd.
and Tosei Asset Advisors, Inc. Mr. Kosuge completed his undergraduate degree at the Graduate School of Economics, Keio University in 1983.

Mr. Roy Kosuge is a Principal at Syncom Venture Partners.
He is on the Board of Directors at AppTap, Inc. Mr. Kosuge was previously employed as a Vice President by Faith, Inc., a Director-Business Development by Universal Music Group, Inc., and a Strategy Analyst by AT&T Broadband LLC.
He received his undergraduate degree from Harvard University.