| April 1977 |
Joined Nippon Steel Corporation |
| April 1997 |
Plant Manager, Thick Steel Plate Plant, Kimitsu Works, Nippon Steel Corporation (General Manager) |
| April 2001 |
General Manager, Thick Steel Plate Sales Department, Head Office, Nippon Steel Corporation |
| June 2005 |
Director; General Manager, Technology Development Planning Department,
Technology Development Headquarters, Nippon Steel Corporation |
| June 2006 |
Corporate Officer; General Manager, Technology Development Planning Department, Technology Development Headquarters, Nippon Steel Corporation |
| June 2009 |
Counselor, Nippon Steel Corporation |
| November 2012 |
Special Professor, Research Center for Advanced Science and Technology, The University of Tokyo |
| April 2017 |
Adviser, Research Center for Advanced Science and Technology, The University of Tokyo |
| April 2017 |
Visiting Professor, Ehime University |
| March 2018 |
Outside Board Director, former Showa Denko K.K. |
| July 2019 |
Representative Director, VCRI Co., Ltd. |
| May 2022 |
Adviser, Institute of Industrial Science, The University of Tokyo (incumbent) |
| January 2023 |
Outside Board Director, Resonac Holdings Corporation |